Young Stellar Population of the Bright-Rimmed Clouds BRC 5, BRC 7 and BRC 39

Abstract

Bright-rimmed clouds (BRCs), illuminated and shaped by nearby OB stars, are potential sites of recent/ongoing star formation. Here we present an optical and infrared photometric study of three BRCs: BRC 5, BRC 7 and BRC 39 to obtain a census of the young stellar population, thereby inferring the star formation scenario, in these regions. In each BRC, the Class I sources are found to be located mostly near the bright rim or inside the cloud, whereas the Class II sources are preferentially outside, with younger sources closer to the rim. This provides strong support to sequential star formation triggered by radiation driven implosion due to the UV radiation. Moreover, each BRC contains a small group of young stars being revealed at its head, as the next-generation stars. In particular, the young stars at the heads of BRC 5 and BRC 7 are found to be intermediate/high mass stars, which, under proper conditions, may themselves trigger further star birth, thereby propagating star formation out to long distances.

30 pages, 7 Figures, 6 Tables, accepted for publication in Monthly Notices of the Royal Astronomical Society

References in corpus (5)

• A Spitzer Survey of Young Stellar Clusters within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis
• X-ray Study of Triggered Star Formation and Protostars in IC 1396N
• Stellar contents and star formation in the young star cluster Be 59
• Sequential star formation in a cometary globule (BRC37) of IC1396
• A SCUBA survey of bright-rimmed clouds

Cited by in corpus (13)

• Determining the recurrence timescale of long-lasting YSO outbursts
• The stellar contents and star formation in the NGC 7538 region
• The low-mass population in the young cluster Stock 8: Stellar properties and Initial Mass Function
• Young cluster Berkeley 59 : Properties, evolution and star formation
• Understanding formation of young, distributed low-mass stars and clusters in the W4 cloud complex
• Variability of young stellar objects in the star-forming region Pelican Nebula
• ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -XIII. Ongoing triggered star formation within clump-fed scenario found in the massive ($\sim 1500$ ${\mathrm{M}}_{\odot }$) clump
• Star formation and evolution of blister-type H{\sc ii} region Sh2-112
• Membership analysis and 3D kinematics of the star-forming complex around Trumpler 37 using Gaia-DR3
• Investigation of Rocket Effect in BRC 18 using Gaia EDR3
• Investigation of Rocket Effect in Bright-Rimmed Clouds using Gaia EDR3
• Photometric variability of the pre-main sequence stars towards the Sh 2-190 region
• Massive Star Formation in the LMC. I. N159 and N160 Complexes