A novel survey for young substellar objects with the <i>W</i>-band filter IV: detection and characterization of low-mass brown dwarfs in Serpens Core-Reference-Cited by-同舟云学术

A novel survey for young substellar objects with the W-band filter IV: detection and characterization of low-mass brown dwarfs in Serpens Core

Published:2023-02-09 Issue:3 Volume:520 Page:3383-3395
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Dubber Sophie¹²^ORCID,Biller Beth¹²,Albert Loïc³,Liu Michael⁴,Jose Jessy⁵^ORCID,Zhang Zhoujian⁴,Chen Wen-Ping⁶,Lalchand Bhavana⁶^ORCID,Damian Belinda⁷,Sharma Tanvi⁶,Allers Katelyn⁸

Affiliation:

1. SUPA, Institute for Astronomy, Royal Observatory, University of Edinburgh , Blackford Hill, Edinburgh EH93HJ, UK

2. Centre for Exoplanet Science, University of Edinburgh , Edinburgh, EH9 3HJ, UK

3. Institut de Recherche sur les Exoplanètes (iREx), Université de Montréal, Département de Physique , C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada

4. Institute for Astronomy, University of Hawaii at Manoa , Honolulu, HI 96822, USA

5. Indian Institute of Science Education and Research (IISER) Tirupati , Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati 517 507, India

6. Graduate Institute of Astronomy, National Central University , Zhongli, Taoyuan 32001, Taiwan

7. CHRIST (Deemed to be University) , Hosur Road, Bengaluru 560029, India

8. Department of Physics and Astronomy, Bucknell University , Lewisburg, PA 17837, USA

Abstract

ABSTRACT We present spectroscopic confirmation of nine M5 or later Serpens Core candidate members, identified using a combination of CFHT WIRCam photometry and IRTF SpeX spectroscopy. Through spectral fitting, we find that the latest of these nine candidate members is best fit by an L0 spectral standard (in the range of M8–L2), implying a mass of ∼0.01–0.035M⊙. If confirmed as a cluster member, this would be one of the lowest mass Serpens Core objects ever discovered. We present analysis of the physical properties of the sample, as well as the likely membership of the candidate Serpens Core members.

Funder

Science and Technology Facilities Council

National Research Council

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad283/49149085/stad283.pdf

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