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Title: Stellar Rotation of T Tauri Stars in the Orion Star-forming Complex

Journal Article · · The Astrophysical Journal
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1];  [5]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [1]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [10]; ORCiD logo [11]; ORCiD logo [12]; ORCiD logo [13]
  1. Univ. Nacional Autonoma de Mexico (UNAM) (Mexico)
  2. Vanderbilt Univ., Nashville, TN (United States); Western Washington University, Bellingham, WA (United States)
  3. Univ. Nacional Autonoma de Mexico (UNAM) (Mexico); Univ. Autonoma de Chiapas, Tuxtla Gutierrez (Mexico)
  4. Universidad de La Serena (Chile)
  5. National University of Colombia (Colombia)
  6. Univ. of Michigan, Ann Arbor, MI (United States)
  7. Cerro Tololo Inter-American Observatory (Chile)
  8. Univ. of Western Ontario, London, ON (Canada)
  9. Univ. of Antofagasta (Chile)
  10. Vanderbilt Univ., Nashville, TN (United States)
  11. Western Washington University, Bellingham, WA (United States)
  12. University of Hertfordshire (United Kingdom)
  13. Universidad Católica del Norte (Chile); Universidad de Atacama (Chile)

We present a large-scale study of stellar rotation for T Tauri stars in the Orion star-forming complex. We use the projected rotational velocity ($$v\sin (i)$$) estimations reported by the APOGEE-2 collaboration as well as individual masses and ages derived from the position of the stars in the HR diagram, considering Gaia-EDR3 parallaxes and photometry plus diverse evolutionary models. We find an empirical trend for $$v\sin (i)$$ decreasing with age for low-mass stars (0.4M < M$$\star$$ < 1.2M). Our results support the existence of a mechanism linking $$v\sin (i)$$ to the presence of accreting protoplanetary disks, responsible for regulating stellar rotation on timescales of about 6 Myr, which is the timescale in which most of the T Tauri stars lose their inner disk. Our results provide important constraints to models of rotation in the early phases of evolution of young stars and their disks.

Research Organization:
US Department of Energy (USDOE), Washington, DC (United States). Office of Science, Sloan Digital Sky Survey (SDSS)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1983202
Journal Information:
The Astrophysical Journal, Journal Name: The Astrophysical Journal Journal Issue: 2 Vol. 923; ISSN 0004-637X
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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