The Gould’s Belt Distances Survey (GOBELINS) II. Distances and Structure toward the Orion Molecular Clouds - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles The Astrophysical Journal Year : 2017

The Gould’s Belt Distances Survey (GOBELINS) II. Distances and Structure toward the Orion Molecular Clouds

Marina Kounkel
  • Function : Author
Lee Hartmann
  • Function : Author
Laurent Loinard
Gisela N. Ortiz-León
  • Function : Author
Amy J. Mioduszewski
  • Function : Author
Luis F. Rodríguez
  • Function : Author
Sergio A. Dzib
  • Function : Author
Rosa M. Torres
  • Function : Author
Gerardo Pech
  • Function : Author
Juana L. Rivera
  • Function : Author
Andrew F. Boden
  • Function : Author
Neal J. Evans
  • Function : Author
Cesar Briceño
  • Function : Author
John J. Tobin
  • Function : Author

Abstract

We present the results of the Gould’s Belt Distances Survey of young star-forming regions toward the Orion Molecular Cloud Complex. We detected 36 young stellar objects (YSOs) with the Very Large Baseline Array, 27 of which have been observed in at least three epochs over the course of two years. At least half of these YSOs belong to multiple systems. We obtained parallax and proper motions toward these stars to study the structure and kinematics of the Complex. We measured a distance of 388 ± 5 pc toward the Orion Nebula Cluster, 428 ± 10 pc toward the southern portion L1641, 388 ± 10 pc toward NGC 2068, and roughly ∼420 pc toward NGC 2024. Finally, we observed a strong degree of plasma radio scattering toward λ Ori.

Dates and versions

insu-03692541 , version 1 (09-06-2022)

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Marina Kounkel, Lee Hartmann, Laurent Loinard, Gisela N. Ortiz-León, Amy J. Mioduszewski, et al.. The Gould’s Belt Distances Survey (GOBELINS) II. Distances and Structure toward the Orion Molecular Clouds. The Astrophysical Journal, 2017, 834, ⟨10.3847/1538-4357/834/2/142⟩. ⟨insu-03692541⟩
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