A Novel Survey for Young Substellar Objects with the W-band Filter. V. IC 348 and Barnard 5 in the Perseus Cloud - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles The Astronomical Journal Year : 2022

A Novel Survey for Young Substellar Objects with the W-band Filter. V. IC 348 and Barnard 5 in the Perseus Cloud

Bhavana Lalchand
  • Function : Author
Wen-Ping Chen
  • Function : Author
Beth A. Biller
  • Function : Author
Loïc Albert
  • Function : Author
Katelyn Allers
  • Function : Author
Sophie Dubber
  • Function : Author
Zhoujian Zhang
  • Function : Author
Michael C. Liu
  • Function : Author
Jessy Jose
  • Function : Author
Belinda Damian
  • Function : Author
Tanvi Sharma
  • Function : Author
Yumiko Oasa
  • Function : Author

Abstract

We report the discovery of substellar objects in the young star cluster IC 348 and the neighboring Barnard 5 dark cloud, both at the eastern end of the Perseus star-forming complex. The substellar candidates are selected using narrowband imaging, i.e., on and off photometric technique with a filter centered around the water absorption feature at 1.45 μm, a technique proven to be efficient in detecting water-bearing substellar objects. Our spectroscopic observations confirm three brown dwarfs in IC 348. In addition, the source WBIS 03492858+3258064, reported in this work, is the first confirmed brown dwarf discovered toward Barnard 5. Together with the young stellar population selected via near- and mid-infrared colors using the Two Micron All Sky Survey and the Wide-field Infrared Survey Explorer, we diagnose the relation between stellar versus substellar objects with the associated molecular clouds. Analyzed by Gaia EDR3 parallaxes and kinematics of the cloud members across the Perseus region, we propose the star formation scenario of the complex under influence of the nearby OB association.
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insu-03860282 , version 1 (19-11-2022)

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Bhavana Lalchand, Wen-Ping Chen, Beth A. Biller, Loïc Albert, Katelyn Allers, et al.. A Novel Survey for Young Substellar Objects with the W-band Filter. V. IC 348 and Barnard 5 in the Perseus Cloud. The Astronomical Journal, 2022, 164, ⟨10.3847/1538-3881/ac8547⟩. ⟨insu-03860282⟩
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