How do stars gain their mass? A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions

Gregory J. Herczeg, Doug Johnstone, Steve Mairs, Jennifer Hatchell, Jeong-Eun Lee, Geoffrey C. Bower, Huei-Ru Vivien Chen, Yuri Aikawa, Hyunju Yoo, Sung Ju Kang, Miju Kang, Wen-Ping Chen, Jonathan P. Williams, Jaehan Bae, Michael M. Dunham, Eduard I. Vorobiov, Zhaohuan Zhu, Ramprasad Rao, Helen Kirk, Satoko TakahashiOscar Morata, Kevin M. Lacaille, James Lane, Andy Pon, Aleks Scholz, Manash R. Samal, Graham S. Bell, Sarah F. Graves, E'lisa M. Lee, Harriet Parsons, Yuxin He, Jianjun Zhou, Mi Ryang Kim, Scott Chapman, Emily Drabek-Maunder, Eun Jung Chung, Stewart P.S. Eyres, Jan Forbrich, Lynne A. Hillenbrand, Shu Ichiro Inutsuka, Gwanjeong Kim, Kyoung Hee Kim, Yi-Jehng Kuan, Woojin Kwon, Shih Ping Lai, Bhavana Lalchand, Chang Won Lee, Chin-Fei Lee, Feng Long, A. Ran Lyo, Lei Qian, Peter Scicluna, Archana Soam, Dimitris Stamatellos, Shigehisa Takakuwa, Ya-Wen Tang, Hongchi Wang, Yiren Wang

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Abstract

Most protostars have luminosities that are fainter than expected from steady accretion over the protostellar lifetime. The solution to this problem may lie in episodic mass accretion -- prolonged periods of very low accretion punctuated by short bursts of rapid accretion. However, the timescale and amplitude for variability at the protostellar phase is almost entirely unconstrained. In "A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions", we are monitoring monthly with SCUBA-2 the sub-mm emission in eight fields within nearby (
Original languageEnglish
Article number43
JournalThe Astrophysical Journal
Volume849
Issue number1
DOIs
Publication statusPublished - 27 Oct 2017

Keywords

  • astro-ph.SR
  • astro-ph.GA
  • astro-ph.IM

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