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Abstract

Accretion through circumstellar disks plays an important role in star formation and in establishing the properties of the regions in which planets form and migrate. The mechanisms by which protostellar and protoplanetary disks accrete onto low-mass stars are not clear; angular momentum transport by magnetic fields is thought to be involved, but the low-ionization conditions in major regions of protoplanetary disks lead to a variety of complex nonideal magnetohydrodynamic effects whose implications are not fully understood. Accretion in pre-main-sequence stars of masses ≲1M (and in at least some 2–3-M systems) is generally funneled by the stellar magnetic field, which disrupts the disk at scales typically of order a few stellar radii. Matter moving at near free-fall velocities shocks at the stellar surface; the resulting accretion luminosities from the dissipation of kinetic energy indicate that mass addition during the T Tauri phase over the typical disk lifetime ∼3 Myr is modest in terms of stellar evolution, but is comparable to total disk reservoirs as estimated from millimeter-wave dust emission (∼10−2 M). Pre-main-sequence accretion is not steady, encompassing timescales ranging from approximately hours to a century, with longer-timescale variations tending to be the largest. Accretion during the protostellar phase—while the protostellar envelope is still falling onto the disk—is much less well understood, mostly because the properties of the central obscured protostar are difficult to estimate. Kinematic measurements of protostellar masses with new interfometric facilities should improve estimates of accretion rates during the earliest phases of star formation.

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2016-09-19
2024-06-24
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Literature Cited

  1. Ábrahám P, Juhász A, Dullemond CP. et al. 2009. Nature 459:224 [Google Scholar]
  2. Acke B, van den Ancker ME, Dullemond CP. 2005. Astron. Astrophys. 436:209 [Google Scholar]
  3. Adams FC, Gregory SG. 2012. Ap. J. 744:55 [Google Scholar]
  4. Alcala JM, Natta A, Manara CF. et al. 2014. Astron. Astrophys. 561:2 [Google Scholar]
  5. Alecian E, Wade GA, Catala C. et al. 2013. MNRAS 429:1001 [Google Scholar]
  6. Alencar SHP, Batalha C. 2002. Ap. J. 571:378 [Google Scholar]
  7. Alencar SHP, Bouver J, Walter FM. et al. 2012. Astron. Astrophys. 541:116 [Google Scholar]
  8. Alencar SHP, Teixeira PS, Guimarães MM. et al. 2010. Astron. Astrophys. 519:88 [Google Scholar]
  9. Alexander RD, Armitage PJ. 2009. Ap. J. 704:989 [Google Scholar]
  10. Alexander R, Pascucci I, Andrews S. et al. 2014. See Beuther et al. 2014 475–96
  11. Alves JF, Lada CJ, Lada EA. 2001. Nature 409:159 [Google Scholar]
  12. Antoniucci S, García López R, Nisini B. et al. 2011. Astron. Astrophys. 534:32 [Google Scholar]
  13. Antoniucci S, García López R, Nisini B. et al. 2014. Astron. Astrophys. 572:62 [Google Scholar]
  14. Ardila DR, Basri G. 2000. Ap. J. 539:834 [Google Scholar]
  15. Ardila DR, Herczeg GJ, Gregory SG. et al. 2013. Ap. J. Suppl. 207:1 [Google Scholar]
  16. Argiroffi C, Maggio A, Peres G. 2007. Astron. Astrophys. 465:L5 [Google Scholar]
  17. Armitage PJ. 2011. Annu. Rev. Astron. Astrophys. 49:195 [Google Scholar]
  18. Armitage PJ, Livio M, Pringle JE. 2001. MNRAS 324:705 [Google Scholar]
  19. Aspin C, Reipurth B, Herczeg GJ, Capak P. 2010. Ap. J. 719:L50 [Google Scholar]
  20. Audard M, Ábrahám P, Dunham MM. et al. 2014. See Beuther et al. 2014 387–410
  21. Bae J, Hartmann L, Zhu Z, Gammie C. 2013. Ap. J. 764:141 [Google Scholar]
  22. Bae J, Hartmann L, Zhu Z, Nelson RP. 2014. Ap. J. 795:61 [Google Scholar]
  23. Bagnulo S, Fossati L, Landstreet JD, Izzo C. 2015. Astron. Astrophys. 583:115 [Google Scholar]
  24. Bai XN. 2014. Ap. J. 791:137 [Google Scholar]
  25. Bai XN. 2015. Ap. J. 798:84 [Google Scholar]
  26. Bai XN, Stone JM. 2013. Ap. J. 767:30 [Google Scholar]
  27. Balbus SA, Hawley JF. 1998. Rev. Mod. Phys. 70:1 [Google Scholar]
  28. Balbus SA, Terquem C. 2001. Ap. J. 552:235 [Google Scholar]
  29. Bally J. 2016. Annu. Rev. Astron. Astrophys. 54: In press [Google Scholar]
  30. Banzatti A, Meyer MR, Bruderer S. et al. 2012. Ap. J. 745:90 [Google Scholar]
  31. Banzatti A, Pontoppidan KM, Bruderer S. et al. 2015. Ap. J. 798:L16 [Google Scholar]
  32. Baraffe I, Chabrier G. 2010. Astron. Astrophys. 521:A44 [Google Scholar]
  33. Baraffe I, Homeier D, Allard F, Chabrier G. 2015. Astron. Astrophys. 577:A42 [Google Scholar]
  34. Baraffe I, Vorobyov E, Chabrier G. 2012. Ap. J. 756:118 [Google Scholar]
  35. Baruteau C, Crida A, Paardekooper S. et al. 2014. See Beuther et al. 2014 667–89
  36. Basri G, Batalha C. 1990. Ap. J. 363:654 [Google Scholar]
  37. Basri G, Bertout C. 1989. Ap. J. 341:340 [Google Scholar]
  38. Bate MR. 2010. MNRAS 404:L79 [Google Scholar]
  39. Bayo A, Barrado D, Huelamo N. et al. 2012. Astron. Astrophys. 547:80 [Google Scholar]
  40. Belloche A, Hennebelle P, André P. 2006. Astron. Astrophys. 453:145 [Google Scholar]
  41. Beristain G, Edwards S, Kwan J. 2001. Ap. J. 551:1037 [Google Scholar]
  42. Bertout C, Basri G, Bouvier J. 1988. Ap. J. 330:350 [Google Scholar]
  43. Bessolaz N, Zanni C, Ferreira J. et al. 2008. Astron. Astrophys. 478:155 [Google Scholar]
  44. Beuther H, Klessen RS, Dullemond CP, Henning TK. 2014. Protostars and Planets 6 Tucson: Univ. Ariz. Press [Google Scholar]
  45. Blandford RD, Payne DG. 1982. MNRAS 199:883 [Google Scholar]
  46. Blinova AA, Romanova MM, Lovelace RVE. 2016. MNRAS 459:2354 [Google Scholar]
  47. Bonito R, Orlando S, Argiroffi C. et al. 2014. Ap. J. Lett. 795:L34 [Google Scholar]
  48. Bonnell IA, Smith KW, Meyer MR. et al. 1998. MNRAS 299:1013 [Google Scholar]
  49. Bourke TL, Myers PC, Evans NJ II. et al. 2006. Ap. J. Lett. 649:L37 [Google Scholar]
  50. Bouvier J, Alencar SHP, Boutelier T. et al. 2007. Astron. Astrophys. 463:1017 [Google Scholar]
  51. Bouvier J, Grankin K, Ellerbroek LE. et al. 2013. Astron. Astrophys. 557:77 [Google Scholar]
  52. Bouvier J, Matt SP, Mohanty S. et al. 2014. See Beuther et al. 2014 433–50
  53. Bowler BP, Liu M, Kraus AL. et al. 2011. Ap. J. 743:148 [Google Scholar]
  54. Brickhouse NS, Cranmer SR, Dupree AK. et al. 2010. Ap. J. 710:1835 [Google Scholar]
  55. Brickhouse NS, Cranmer SR, Dupree AK. et al. 2012. Ap. J. Lett. 760:L21 [Google Scholar]
  56. Calvet N. 2004. Stars as Suns: Activity, Evolution and Planets. Proc. Symp. Int. Astron. Union, 219th, Sydney, July 21–25, 2003 AK Dupree, AO Benz 599–609 San Francisco: Astron. Soc. Pac. [Google Scholar]
  57. Calvet N, Basri G, Kuhi LV. 1984. Ap. J. 277:725 [Google Scholar]
  58. Calvet N, Briceño C, Hernández J. et al. 2005. Astron. J. 129:935 [Google Scholar]
  59. Calvet N, Gullbring E. 1998. Ap. J. 509:802 [Google Scholar]
  60. Calvet N, Muzerolle J, Briceño C. et al. 2004. Astron. J. 128:1294 [Google Scholar]
  61. Caratti o Garatti A, García López R, Antoniucci S. et al. 2012. Astron. Astrophys. 538:A64 [Google Scholar]
  62. Carney MT, Yildiz UA, Mottram JC. et al. 2015. Astron. Astrophys. 586:A44 [Google Scholar]
  63. Cauley PW, Johns-Krull CM. 2014. Ap. J. 797:112 [Google Scholar]
  64. Cauley PW, Johns-Krull CM. 2015. Ap. J. 810:5 [Google Scholar]
  65. Chabrier G. 2005. The Initial Mass Function 50 Years Later EE Salpeter, E Corbelli, F Palla, H Zinnecker 41–50 Astrophys. Space Sci. Libr. 327 New York: Springer [Google Scholar]
  66. Chen W, Johns-Krull CM. 2013. Ap. J. 776:113 [Google Scholar]
  67. Cieza LA, Screiber MR, Romero GA. et al. 2010. Astron. J. 712:925 [Google Scholar]
  68. Clarke CJ, Gendrin A, Sotomayor M. 2001. MNRAS 328:485 [Google Scholar]
  69. Cleeves LI, Bergin EA, Qi C. et al. 2015. Ap. J. 799:204 [Google Scholar]
  70. Cody AM, Stauffer J, Baglin A. et al. 2014. Astron. J. 147:82 [Google Scholar]
  71. Cody AM, Hillenbrand LA. 2014. Ap. J. 796:129 [Google Scholar]
  72. Connelley MS, Greene TP. 2010. Astron. J. 140:1214 [Google Scholar]
  73. Costigan G, Scholz A, Stelzer B. et al. 2012. MNRAS 427:1344 [Google Scholar]
  74. Costigan G, Vink JS, Scholz A. et al. 2014. MNRAS 440:3444 [Google Scholar]
  75. Cottaar M, Covey KR, Meyer MR. et al. 2014. Ap. J. 794:125 [Google Scholar]
  76. Covey KR, Hillenbrand LA, Miller AA. et al. 2011. Astron. J. 141:40 [Google Scholar]
  77. Cranmer SR. 2008. Ap. J. 689:316 [Google Scholar]
  78. Cranmer SR. 2009. Ap. J. 706:824 [Google Scholar]
  79. D'Alessio P, Calvet N, Hartmann L. et al. 1999. Ap. J. 527:893 [Google Scholar]
  80. D'Angelo CR, Spruit HC. 2010. MNRAS 406:1208 [Google Scholar]
  81. D'Angelo CR, Spruit HC. 2012. MNRAS 420:416 [Google Scholar]
  82. Da Rio N, Jeffries RD, Manara CF, Robberto M. 2014. MNRAS 439:3308 [Google Scholar]
  83. Da Rio N, Robbero M, Hillenbrand LA. et al. 2012. Ap. J. 748:14 [Google Scholar]
  84. Dahm SE. 2008. Astron. J. 136:521 [Google Scholar]
  85. Di Francesco J, Myers PC, Wilner DJ. et al. 2001. Ap. J. 562:770 [Google Scholar]
  86. Dodin AV, Lamzin SA. 2012. Astron. Lett. 38:649 [Google Scholar]
  87. Donati JF, Gregory SG, Alencar SHP. et al. 2011. MNRAS 417:472 [Google Scholar]
  88. Donati JF, Gregory SG, Alencar SHP. et al. 2012. MNRAS 425:2948 [Google Scholar]
  89. Donati JF, Jardine MM, Gregory SG. et al. 2007. MNRAS 380:1297 [Google Scholar]
  90. Donati JF, Landstreet JD. 2009. Annu. Rev. Astron. Astrophys. 47:333 [Google Scholar]
  91. Donati JF, Morin J, Petit P. et al. 2008. MNRAS 390:545 [Google Scholar]
  92. Donehew B, Brittain S. 2011. Astron. J. 141:46 [Google Scholar]
  93. Doppmann GW, Greene TP, Covey KR, Lada CJ. 2005. Astron. J. 130:1145 [Google Scholar]
  94. Drake JJ. 2005. Proc. Camb. Worksh., Cool Stars, Stellar Systems and the Sun, 13th, Hamburg, Ger., July 5–9, 2004 F Fatava, GAJ Hussain, B Battrick 519–22 Noordwijk, Neth: Eur. Space Agency [Google Scholar]
  95. Dullemond CP, Monnier JD. 2010. Annu. Rev. Astron. Astrophys. 48:205 [Google Scholar]
  96. Dunham MM, Allen LE, Evans NJ II. et al. 2015. Ap. J. Suppl. 220:11 [Google Scholar]
  97. Dunham MM, Arce HG, Allen LE. et al. 2013. Astron. J. 145:94 [Google Scholar]
  98. Dunham MM, Evans NJ II, Terebey S. et al. 2010. Ap. J. 710:470 [Google Scholar]
  99. Dupree AK, Brickhouse NS, Cranmer SR. et al. 2012. Ap. J. 750:73 [Google Scholar]
  100. Dupree AK, Brickhouse NS, Cranmer SR. et al. 2014. Ap. J. 789:27 [Google Scholar]
  101. Dupree AK, Brickhouse NS, Smith GH, Strader J. 2005. Ap. J. 625:L131 [Google Scholar]
  102. Edwards S, Fischer W, Hillenbrand L, Kwan J. 2006. Ap. J. 646:319 [Google Scholar]
  103. Edwards S, Fischer W, Kwan J. et al. 2003. Ap. J. Lett. 599:L41 [Google Scholar]
  104. Edwards S, Kwan J, Fischer W. et al. 2013. Ap. J. 778:148 [Google Scholar]
  105. Eisner JA, Monnier JD, Woillez J. et al. 2010. Ap. J. 718:774 [Google Scholar]
  106. Ellerbroek LE, Podio L, Dougados C. et al. 2014. Astron. Astrophys. 563:87 [Google Scholar]
  107. Esau CF, Harries TJ, Bouvier J. 2014. MNRAS 443:1022 [Google Scholar]
  108. Espaillat C, Muzerolle J, Najita J. et al. 2014. See Beuther et al. 2014 497–520
  109. Evans NJ II, Dunham MM, Jørgensen JK. et al. 2009. Ap. J. Suppl. 181:321 [Google Scholar]
  110. Fairlamb JR, Oudmaijer RD, Mendigutia I. et al. 2015. MNRAS 453:976 [Google Scholar]
  111. Fang M, Kim JS, van Boekel R. et al. 2013. Ap. J. Suppl. 207:39 [Google Scholar]
  112. Fang M, van Boekel R, Wang W. et al. 2009. Astron. Astrophys. 504:461 [Google Scholar]
  113. Favata F, Flaccomio E, Reale F. et al. 2005. Ap. J. Suppl. 160:469 [Google Scholar]
  114. Fedele D, van den Ancker ME, Henning Th. et al. 2010. Astron. Astrophys. 510:72 [Google Scholar]
  115. Feiden G. 2016. Astron. Astrophys. In press. arXiv:1604.08036 [Google Scholar]
  116. Ferreira J, Dougados C, Cabrit S. 2006. Astron. Astrophys. 453:785 [Google Scholar]
  117. Fischer W, Edwards S, Hillenbrand L, Kwon J. 2011. Ap. J. 730:73 [Google Scholar]
  118. Fischer W, Kwan J, Edwards S, Hillenbrand L. 2008. Ap. J. 687:1117 [Google Scholar]
  119. Flaherty KM, Hughes AM, Rosenfeld KA. et al. 2015. Ap. J. 813:99 [Google Scholar]
  120. Foster PN, Chevalier RA. 1993. Ap. J. 416:303 [Google Scholar]
  121. Frank A, Ray TP, Cabrit S. et al. 2014. See Beuther et al. 2014 451–74
  122. Frasca A, Biazzo K, Lanzafame AC. et al. 2015. Astron. Astrophys. 575:4 [Google Scholar]
  123. Furlan E, McClure M, Calvet N. et al. 2008. Ap. J. Suppl. 176:184 [Google Scholar]
  124. Gahm GF, Walter FM, Stempels HC, Petrov PP. 2008. Astron. Astrophys. 482:L35 [Google Scholar]
  125. Gammie CF. 1996. Ap. J. 457:355 [Google Scholar]
  126. García López R, Natta A, Testi L, Habart E. 2006. Astron. Astrophys. 459:837 [Google Scholar]
  127. Gómez de Castro AI, Lamzin SA. 1999. MNRAS 304:L41 [Google Scholar]
  128. Goodson AP, Winglee RM, Böhm KH. 1997. Ap. J. 489:199 [Google Scholar]
  129. Gorti U, Hollenbach D. 2009. Ap. J. 690:1539 [Google Scholar]
  130. Grady CA, Hamaguchi K, Schneider G. et al. 2010. Ap. J. 719:1565 [Google Scholar]
  131. Grady CA, Woodgate B, Torres CAO. et al. 2004. Ap. J. 608:809 [Google Scholar]
  132. Grankin KN, Melnikov SY, Bouvier J. et al. 2007. Astron. Astrophys. 461:183 [Google Scholar]
  133. Gregory SG, Donati JF, Morin J. et al. 2012. Ap. J. 755:97 [Google Scholar]
  134. Gregory SG, Matt SP, Donati JF, Jardine M. 2008. MNRAS 389:1839 [Google Scholar]
  135. Gressel O, Turner NJ, Nelson RP, McNally CP. 2015. Ap. J. 801:84 [Google Scholar]
  136. Grosso N, Audard M, Bouvier J. et al. 2007. Astron. Astrophys. 468:557 [Google Scholar]
  137. Güdel M, Nazé Y. 2010. Space Sci. Rev. 157:211 [Google Scholar]
  138. Günther HM, Lewandowska N, Hundertmark MPG. et al. 2010. Astron. Astrophys. 518:54 [Google Scholar]
  139. Günther HM, Schmitt JHMM. 2008. Astron. Astrophys. 481:735 [Google Scholar]
  140. Günther HM, Schmitt JHMM, Robrade J, Liefke C. 2007. Astron. Astrophys. 466:1111 [Google Scholar]
  141. Gullbring E, Calvet N, Muzerolle J, Hartmann L. 2000. Ap. J. 544:927 [Google Scholar]
  142. Gullbring E, Hartmann L, Briceño C, Calvet N. 1998. Ap. J. 492:323 [Google Scholar]
  143. Haisch KE Jr., Lada EA, Lada CJ. 2001. Ap. J. Lett. 553:L153 [Google Scholar]
  144. Hansen CE, Klein RI, McKee CF, Fisher RT. 2012. Ap. J. 747:22 [Google Scholar]
  145. Hartigan P, Edwards S, Ghandour L. 1995. Ap. J. 452:736 [Google Scholar]
  146. Hartigan P, Kenyon SJ, Hartmann L. et al. 1991. Ap. J. 382:617 [Google Scholar]
  147. Hartmann L. 2003. Ap. J. 585:398 [Google Scholar]
  148. Hartmann L. 2009. Accretion Processes in Star Formation. Cambridge, UK: Cambridge Univ. Press, 2nd ed.. [Google Scholar]
  149. Hartmann L, Calvet N, Gullbring E, D'Alessio P. 1998. Ap. J. 495:385 [Google Scholar]
  150. Hartmann L, Cassen P, Kenyon SJ. 1997. Ap. J. 475:770 [Google Scholar]
  151. Hartmann L, Hewett R, Calvet N. 1994. Ap. J. 426:669 [Google Scholar]
  152. Hartmann L, Kenyon SJ. 1996. Annu. Rev. Astron. Astrophys. 34:207 [Google Scholar]
  153. Hartmann L, Zhu Z, Calvet N. 2011. arXiv:1106.3343 [astro-ph.SR]
  154. Hayashi MR, Shibata K, Matsumoto R. 1996. Ap. J. Lett. 468:L37 [Google Scholar]
  155. Herbig GH. 1977. Ap. J. 217:693 [Google Scholar]
  156. Herbig GH. 1989. ESO Workshop on Low Mass Star Formation and Pre-Main Sequence Objects, Garching bei München, 11–13 July 1989 B Reipurth 233–46 Garching bei München, Ger: Eur. South. Obs. [Google Scholar]
  157. Herbig GH. 1990. Astron. J. 360:639 [Google Scholar]
  158. Herbig GH. 2008. Astron. J. 135:637 [Google Scholar]
  159. Herbst W, Herbst DK, Grossman EJ, Weinstein D. 1994. Astron. J. 108:1906 [Google Scholar]
  160. Herczeg GJ, Cruz KL, Hillenbrand LA. 2009. Ap. J. 1094:529 [Google Scholar]
  161. Herczeg GJ, Hillenbrand LA. 2008. Ap. J. 681:594 [Google Scholar]
  162. Hernández J, Calvet N, Briceño C. et al. 2007. Ap. J. 671:1784 [Google Scholar]
  163. Hillenbrand LA, Findeisen KP. 2015. Ap. J. 808:68 [Google Scholar]
  164. Hillenbrand LA, Miller AA, Covey KR. et al. 2013. Astron. J. 145:59 [Google Scholar]
  165. Holoien TWS, Prieto JL, Stanek KZ. et al. 2014. Ap. J. 785:L35 [Google Scholar]
  166. Hosokawa T, Offner SSR, Krumholz MR. 2011. Ap. J. 738:140 [Google Scholar]
  167. Hubrig S, Ilyin I, Schöller M, Lo Curto G. 2013. Astron. Nachr. 334:1093 [Google Scholar]
  168. Hussain GAJ, Alecian E. 2014. Magnetic Fields Throughout Stellar Evolution: Proc. Symp. Int. Astron. Union, 302nd, Biarritz, Fr., Aug. 25–30, 2013 P Petit, M Jardine, H Spruit 25–37 Cambridge, UK: Cambridge Univ. Press [Google Scholar]
  169. Hussain GAJ, Collier Cameron A, Jardine MM. et al. 2009. MNRAS 398:189 [Google Scholar]
  170. Ilee JD, Fairlamb J, Oudmaijer RD. et al. 2014. MNRAS 445:3723 [Google Scholar]
  171. Ingleby L, Calvet N, Bergin E. et al. 2009. Ap. J. 703:L137 [Google Scholar]
  172. Ingleby L, Calvet N, Bergin E. et al. 2011. Ap. J. 743:105 [Google Scholar]
  173. Ingleby L, Calvet N, Herczeg GJ. et al. 2013. Ap. J. 767:112 [Google Scholar]
  174. Ingleby L, Calvet N, Hernández J. et al. 2014. Ap. J. 790:47 [Google Scholar]
  175. Ingleby L, Espaillat C, Calvet N. et al. 2015. Ap. J. 805:149 [Google Scholar]
  176. Joergens V, Bonnefoy M, Liu Y. et al. 2013. Astron. Astrophys. 558:L7 [Google Scholar]
  177. Johns-Krull CM. 2007. Ap. J. 664:975 [Google Scholar]
  178. Johns-Krull CM, Chen W, Valenti JA. et al. 2013. Ap. J. 765:11 [Google Scholar]
  179. Johns-Krull CM, Herczeg GJ. 2007. Ap. J. 655:345 [Google Scholar]
  180. Johnstone CP, Jardine M, Gregory SG. et al. 2014. MNRAS 437:3202 [Google Scholar]
  181. Jones AFAL. 2008. Cent. Bur. Electron. Telegr. 1217:1 [Google Scholar]
  182. Joy AH. 1945. Ap. J. 102:168 [Google Scholar]
  183. Juhász A, Dullemond CP, van Boekel R. et al. 2012. Ap. J. 744:118 [Google Scholar]
  184. Kalari VM, Vink JS. 2015. Ap. J. 800:113 [Google Scholar]
  185. Kalari VM, Vink JS, Drew JE. et al. 2015. MNRAS 453:1026 [Google Scholar]
  186. Kastner JH, Huenemoerder DP, Schulz NS. et al. 2002. Ap. J. 567:434 [Google Scholar]
  187. Kenyon SJ, Gomez M, Marzke RO, Hartmann L. 1994. Astron. J. 108:251 [Google Scholar]
  188. Kenyon SJ, Hartmann L, Strom KM, Strom SE. 1990. Astron. J. 99:869 [Google Scholar]
  189. Kim KH, Watson DM, Manoj P. et al. 2009. Ap. J. 700:1017 [Google Scholar]
  190. Kley W, Nelson RP. 2012. Annu. Rev. Astron. Astrophys. 50:211 [Google Scholar]
  191. Königl A. 1989. Ap. J. 342:208 [Google Scholar]
  192. Königl A. 1991. Ap. J. Lett. 370:L39 [Google Scholar]
  193. Königl A, Salmeron R, Wardle M. 2010. MNRAS 401:479 [Google Scholar]
  194. Kóspál A, Ábrahám P, Goto M. et al. 2011. Ap. J. 736:72 [Google Scholar]
  195. Kóspál A, Ábrahám P, Prusti T. et al. 2007. Astron. Astrophys. 470:211 [Google Scholar]
  196. Kóspál A, Németh P, Ábrahám P. et al. 2008. Inf. Bull. Var. Stars 5819:1 [Google Scholar]
  197. Kratter K, Lodato G. 2016. Annu. Rev. Astron. Astrophys. 54:271–311 [Google Scholar]
  198. Kraus S, Hofmann KH, Benisty M. et al. 2008. Astron. Astrophys. 489:1157 [Google Scholar]
  199. Kun M, Apai D, O'Linger-Luscusk J. et al. 2014. Ap. J. 795:L26 [Google Scholar]
  200. Kunz MW. 2008. MNRAS 385:1494 [Google Scholar]
  201. Kurosawa R, Romanova MM. 2012. MNRAS 426:2901 [Google Scholar]
  202. Kurosawa R, Romanova MM. 2013. MNRAS 431:2673 [Google Scholar]
  203. Kurosawa R, Romanova MM, Harries TJ. 2011. MNRAS 416:2623 [Google Scholar]
  204. Kwan J, Edwards S, Fischer W. 2007. Ap. J. 657:897 [Google Scholar]
  205. Larson RB. 1969. MNRAS 145:271 [Google Scholar]
  206. Larson RB. 1972. MNRAS 157:121 [Google Scholar]
  207. Lamzin SA. 1995a. Astrophys. Space Sci. 224:211 [Google Scholar]
  208. Lamzin SA. 1995b. Astron. Astrophys. 295:L20 [Google Scholar]
  209. Lamzin SA. 1998. Astron. Rep. 42:322 [Google Scholar]
  210. Lamzin SA. 2003. Astron. Rep. 47:540 [Google Scholar]
  211. Lesur G, Kunz MW, Fromang S. 2014. Astron. Astrophys. 566:56 [Google Scholar]
  212. Li ZY, Banerjee R, Pudritz RE. et al. 2014. See Beuther et al. 2014 173–94
  213. Lima GHRA, Alencar SHP, Calvet N. et al. 2010. Astron. Astrophys. 522:A104 [Google Scholar]
  214. Lorenzetti D, Antoniucci S, Giannini T. et al. 2012. Ap. J. 749:188 [Google Scholar]
  215. Lovelace RVE, Covey KR, Lloyd JP. 2011. Astron. J. 141:L51 [Google Scholar]
  216. Lovelace RVE, Romanova MM, Bisnovatyi-Kogan GS. 1995. MNRAS 275:244 [Google Scholar]
  217. Manara CF, Beccari G, Da Rio N. et al. 2013. Astron. Astrophys. 558:114 [Google Scholar]
  218. Manara CF, Robberto M, Da Rio N. et al. 2012. Ap. J. 755:154 [Google Scholar]
  219. Manara CF, Testi L, Natta A. et al. 2014. Astron. Astrophys. 568:18 [Google Scholar]
  220. Manara CF, Testi L, Natta A, Alcala JM. 2015. Astron. Astrophys. 579:66 [Google Scholar]
  221. Manara CF, Testi L, Rigliaco E. et al. 2013. Astron. Astrophys. 551:107 [Google Scholar]
  222. Matt S, Pinzón G, Greene TP, Pudritz RE. 2012. Ap. J. 745:101 [Google Scholar]
  223. Matt SP, Pudritz RE. 2005. Ap. J. Lett. 632:L135 [Google Scholar]
  224. McClure MK, Calvet N, Espaillat C. et al. 2013. Ap. J. 188:75 [Google Scholar]
  225. McClure MK, Furlan E, Manoj P. et al. 2010. Ap. J. Suppl. 188:75 [Google Scholar]
  226. McGinnis PT, Alencar SHP, Guimarães MM. et al. 2015. Astron. Astrophys. 577:11 [Google Scholar]
  227. McKee CF, Offner SSR. 2010. Ap. J. 716:167 [Google Scholar]
  228. McLaughlin DB. 1946. Astron. J. 52:109 [Google Scholar]
  229. Mendigutia I, Brittain S, Eiroa C. et al. 2013. Ap. J. 776:44 [Google Scholar]
  230. Mendigutia I, Calvet N, Montesinos B. et al. 2011. Astron. Astrophys. 535:99 [Google Scholar]
  231. Merin B, Brown JM, Oliveira I. et al. 2010. Ap. J. 718:1200 [Google Scholar]
  232. Miller AA, Hillenbrand LA, Covey KR. et al. 2011. Ap. J. 730:80 [Google Scholar]
  233. Mohanty S, Jayawardhana R, Basri G. 2005. Ap. J. 626:498 [Google Scholar]
  234. Mottram JC, van Dishoeck EF, Schmalzl M. et al. 2013. Astron. Astrophys. 558:A126 [Google Scholar]
  235. Murillo NM, Lai SP, Bruderer S. et al. 2013. Astron. Astrophys. 560:103 [Google Scholar]
  236. Muzerolle J, Calvet N, Briceño C. et al. 2000. Ap. J. 535:L47 [Google Scholar]
  237. Muzerolle J, Calvet N, Hartmann L. 2001. Ap. J. 550:944 [Google Scholar]
  238. Muzerolle J, D'Alessio P, Calvet N, Hartmann L. 2004. Ap. J. 617:406 [Google Scholar]
  239. Muzerolle J, Hartmann L, Calvet N. 1998. Astron. J. 116:2965 [Google Scholar]
  240. Muzerolle J, Hillenbrand L, Calvet N. et al. 2003. Ap. J. 592:266 [Google Scholar]
  241. Muzerolle J, Luhman KL, Briceño C. et al. 2005. Ap. J. 625:906 [Google Scholar]
  242. Myers PC. 2011. Ap. J. 743:98 [Google Scholar]
  243. Myers PC. 2014. Ap. J. 781:33 [Google Scholar]
  244. Najita JR, Andrews SM, Muzerolle J. 2015. MNRAS 450:3559 [Google Scholar]
  245. Najita JR, Carr JS, Mathieu RD. 2003. Ap. J. 589:931 [Google Scholar]
  246. Najita JR, Strom SE, Muzerolle J. 2007. MNRAS 378:369 [Google Scholar]
  247. Natta A, Testi L, Alcala JM. et al. 2014. Astron. Astrophys. 569:5 [Google Scholar]
  248. Natta A, Testi L, Muzerolle J. et al. 2004. Astron. Astrophys. 424:603 [Google Scholar]
  249. Natta A, Testi L, Randich S. 2006. Astron. Astrophys. 452:245 [Google Scholar]
  250. Nguyen DC, Scholz A, van Kerkwijk MH. et al. 2009. Ap. J. 694:L153 [Google Scholar]
  251. Nisini B, Antoniucci S, Giannini T, Lorenzetti D. 2005. Astron. Astrophys. 429:543 [Google Scholar]
  252. Offner SSR, McKee CF. 2011. Ap. J. 736:53 [Google Scholar]
  253. Ohashi N, Saigo K, Aso Y. et al. 2014. Ap. J. 796:131 [Google Scholar]
  254. Orlando S, Sacco GG, Argiroffi C. et al. 2010. Astron. Astrophys. 510:A71 [Google Scholar]
  255. Oudmaijer RD, van den Ancker ME, Baines D. et al. 2011. Astron. Nacht. 332:238 [Google Scholar]
  256. Owen JE, Clarke CJ, Ercolano B. 2012. MNRAS 422:1880 [Google Scholar]
  257. Owen JE, Ercolano B, Clarke CJ. 2011. MNRAS 412:13 [Google Scholar]
  258. Padoan P, Haugbølle T, Nordlund Å. 2014. Ap. J. 797:32 [Google Scholar]
  259. Palla F, Stahler SW. 1991. Ap. J. 375:288 [Google Scholar]
  260. Palla F, Stahler SW. 1999. Ap. J. 525:772 [Google Scholar]
  261. Pascucci I, Gorti U, Hollenbach D. et al. 2006. Ap. J. 651:1177 [Google Scholar]
  262. Perez-Becker D, Chiang E. 2011. Ap. J. 735:8 [Google Scholar]
  263. Petrov PP, Gahm GF, Herczeg GH. et al. 2014. Astron. Astrophys. 568:L10 [Google Scholar]
  264. Petrov PP, Gahm GF, Stempels HC. et al. 2011. Astron. Astrophys. 535:6 [Google Scholar]
  265. Popham R, Kenyon S, Hartmann L, Narayan R. 1996. Ap. J. 473:422 [Google Scholar]
  266. Pudritz RE, Norman CA. 1983. Ap. J. 274:677 [Google Scholar]
  267. Rigliaco E, Natta A, Randich S. et al. 2011. Astron. Astrophys. 526:L6 [Google Scholar]
  268. Rigliaco E, Natta A, Testi L. et al. 2012. Astron. Astrophys. 548:56 [Google Scholar]
  269. Rigliaco E, Pascucci I, Duchene G. et al. 2015. Ap. J. 801:31 [Google Scholar]
  270. Rigliaco E, Pascucci I, Gorti U. et al. 2013. Ap. J. 772:60 [Google Scholar]
  271. Robberto M, Song J, Mora Carrillo G. et al. 2004. Ap. J. 606:952 [Google Scholar]
  272. Romanova MM, Kulkarni AK, Lovelace RV. 2008. Ap. J. Lett. 673:L171 [Google Scholar]
  273. Romanova MM, Long M, Lamb FK. et al. 2011. MNRAS 411:915 [Google Scholar]
  274. Romanova MM, Lovelace RVE, Bachetti M. et al. 2014. Eur. Phys. J. Web Conf. 64:05001 [Google Scholar]
  275. Romanova MM, Ustyugova GV, Koldoba AV, Lovelace RVE. 2004. Ap. J. 610:920 [Google Scholar]
  276. Romanova MM, Ustyugova GV, Koldoba AV, Lovelace RVE. 2012. MNRAS 421:63 [Google Scholar]
  277. Rucinski SM, Matthews JM, Kuschnig R. et al. 2008. MNRAS 391:1913 [Google Scholar]
  278. Sacco GG, Argiroffi C, Orlando S. et al. 2008. Astron. Astrophys. 491:L17 [Google Scholar]
  279. Sacco GG, Orlando S, Argiroffi C. et al. 2010. Astron. Astrophys. 522:A55 [Google Scholar]
  280. Safron EJ, Fischer WJ, Megeath ST. et al. 2015. Ap. J. Lett. 800:L5 [Google Scholar]
  281. Salyk C, Blake G, Boogert ACA, Brown JM. 2011. Ap. J. 743:112 [Google Scholar]
  282. Salyk C, Herczeg GJ, Brown JM. et al. 2013. Ap. J. 769:21 [Google Scholar]
  283. Schönke J, Tscharnuter WM. 2011. Astron. Astrophys. 526:A139 [Google Scholar]
  284. Shu FH. 1977. Ap. J. 214:488 [Google Scholar]
  285. Shu FH, Lizano S, Ruden SP, Najita J. 1988. Ap. J. Lett. 328:L19 [Google Scholar]
  286. Sicilia-Aguilar A, Fang M, Roccatagliata V. et al. 2015. Astron. Astrophys. 580:82 [Google Scholar]
  287. Sicilia-Aguilar A, Henning Th, Hartmann L. 2010. Ap. J. 710:597 [Google Scholar]
  288. Sicilia-Aguilar A, Kóspál A, Setiawan J. et al. 2012. Astron. Astrophys. 544:93 [Google Scholar]
  289. Simon JB, Lesur G, Kunz MW, Armitage PJ. 2015. MNRAS 454:1117 [Google Scholar]
  290. Siwak M, Rucinski SM, Matthews JM. et al. 2011. MNRAS 415:1119 [Google Scholar]
  291. Soderblom DR. 2010. Annu. Rev. Astron. Astrophys. 48:581 [Google Scholar]
  292. Soderblom DR, Hillenbrand LA, Jeffries RD. et al. 2014. See Beuther et al. 2014 219–41
  293. Sousa A, Alencar SHP, Bouvier J. et al. 2016. Astron. Astrophys. 586:A47 [Google Scholar]
  294. Stahler SW. 1988. Ap. J. 332:804 [Google Scholar]
  295. Stahler SW, Shu FH, Taam RE. 1980. Ap. J. 241:637 [Google Scholar]
  296. Stauffer J, Cody AM, Baglin A. et al. 2014. Astron. J. 147:83 [Google Scholar]
  297. Stelzer B, Micela G, Hamaguchi K, Schmitt JHMM. 2006. Astron. Astrophys. 457:223 [Google Scholar]
  298. Stelzer B, Schmitt JHMM. 2004. Astron. Astrophys. 418:687 [Google Scholar]
  299. Symington NH, Harries TJ, Kurosawa R, Naylor T. 2005. MNRAS 358:977 [Google Scholar]
  300. Terebey S, Shu FH, Cassen P. 1984. Ap. J. 286:529 [Google Scholar]
  301. Tobin JJ, Hartmann L, Chiang HF. et al. 2012. Nature 492:83 [Google Scholar]
  302. Turner NJ, Fromang S, Gammie C. et al. 2014. See Beuther et al. 2014 411–32
  303. Valenti JA, Basri G, Johns CM. 1993. Ap. J. 106:2024 [Google Scholar]
  304. van der Marel N, van Dishoeck EF, Bruderer S. et al. 2015. Astron. Astrophys. 579:A106 [Google Scholar]
  305. van der Marel N, van Dishoeck EF, Bruderer S. et al. 2016. Astron. Astrophys. 585:58 [Google Scholar]
  306. van Kempen TA, van Dishoeck EF, Salter DM. et al. 2009. Astron. Astrophys. 498:167 [Google Scholar]
  307. Vaytet N, Chabrier G, Audit E. et al. 2013. Astron. Astrophys. 557:A90 [Google Scholar]
  308. Venuti L, Bouvier J, Flaccomio E. et al. 2014. Astron. Astrophys. 570:82 [Google Scholar]
  309. Venuti L, Bouvier J, Irwin J. et al. 2015. Astron. Astrophys. 581:66 [Google Scholar]
  310. Vink JS, Drew JE, Harries TJ, Oudmaijer RD. 2002. MNRAS 337:356 [Google Scholar]
  311. Vorobyov EI, Basu S. 2005. Ap. J. Lett. 633:L137 [Google Scholar]
  312. Vorobyov EI, Basu S. 2010. Ap. J. 719:1896 [Google Scholar]
  313. Vorobyov EI, Basu S. 2015. Ap. J. 805:115 [Google Scholar]
  314. Wade GA, Bagnulo S, Drouin D. et al. 2007. MNRAS 376:1145 [Google Scholar]
  315. Wardle M. 1999. MNRAS 307:849 [Google Scholar]
  316. Wardle M, Salmeron R. 2012. MNRAS 422:2737 [Google Scholar]
  317. White RJ, Basri G. 2003. Ap. J. 582:1109 [Google Scholar]
  318. White RJ, Ghez AM. 2001. Ap. J. 556:265 [Google Scholar]
  319. White RJ, Greene TP, Doppmann GW. et al. 2007. Protostars and Planets B Reipurth, D Jewitt, K Keil 117–32 Tucson: Univ. Ariz. Press [Google Scholar]
  320. White RJ, Hillenbrand LA. 2004. Ap. J. 616:998 [Google Scholar]
  321. Wilking BA, Lada CJ, Young ET. 1989. Ap. J. 340:823 [Google Scholar]
  322. Williams JP, Cieza LA. 2011. Annu. Rev. Astron. Astrophys. 49:67 [Google Scholar]
  323. Yang H, Johns-Krull CM, Valenti JA. 2007. Ap. J. 133:73 [Google Scholar]
  324. Young CH, Jørgensen JK, Shirley YL. et al. 2004. Ap. J. Suppl. 154:396 [Google Scholar]
  325. Zanni C, Ferreira J. 2013. Astron. Astrophys. 550:A99 [Google Scholar]
  326. Zhang K, Crockett N, Salyk C. et al. 2015. Ap. J. 805:55 [Google Scholar]
  327. Zhou Y, Herczeg GJ, Kraus AL. et al. 2014. Ap. J. 783:L17 [Google Scholar]
  328. Zhu Z, Espaillat C, Hinkle K. et al. 2009. Ap. J. Lett. 694:L64 [Google Scholar]
  329. Zhu Z, Hartmann L, Calvet N. et al. 2007. Ap. J. 669:483 [Google Scholar]
  330. Zhu Z, Hartmann L, Gammie C. 2009. Ap. J. 694:1045 [Google Scholar]
  331. Zhu Z, Nelson RP, Hartmann L. et al. 2011. Ap. J. 729:47 [Google Scholar]
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