Twins in diversity: Understanding circumstellar disc evolution in the twin clusters of W5 complex
- Title
- Twins in diversity: Understanding circumstellar disc evolution in the twin clusters of W5 complex
- Creator
- Damian B.; Jose J.; Das S.R.; Gupta S.; Vaikundaraman V.; Ojha D.K.; Kartha S.S.; Panwar N.; Eswaraiah C.
- Description
- Young star-forming regions in massive environments are ideal test beds to study the influence of surroundings on the evolution of discs around low-mass stars. We explore two distant young clusters, IC 1848-East and West located in the massive W5 complex. These clusters are unique due to their similar (distance, age and extinction) yet distinct (stellar density and far-ultraviolet radiation fields) physical properties. We use deep multiband photometry in optical, near-infrared and mid-infrared wavelengths complete down to the substellar limit in at least five bands. We trace the spectral energy distribution of the sources to identify the young pre-main sequence members in the region and derive their physical parameters. The disc fraction for the East and West clusters down to 0.1?M was found to be 2 per?cent (N = 184, N = 492) and 1 per?cent (N = 173, N = 814), respectively. While no spatial variation in the disc fraction is observed, these values are lower than those in other nearby young clusters. Investigating the cause of this decrease, we find a correlation with the intense feedback from massive stars throughout the cluster area. We also identified the disc sources undergoing accretion and observed the mass accretion rates to exhibit a positive linear relationship with the stellar host mass and an inverse relationship with stellar age. Our findings suggest that the environment significantly influences the dissipation of discs in both clusters. These distant clusters, characterized by their unique attributes, can serve as templates for future studies in outer galaxy regions, offering insights into the influence of feedback mechanisms on star and planetary formation. 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
- Source
- Monthly Notices of the Royal Astronomical Society, Vol-535, No. 2, pp. 1321-1337.
- Date
- 2024-01-01
- Publisher
- Oxford University Press
- Subject
- accretion; Hertzsprung-Russell and colour-magnitude diagrams; protoplanetary discs; stars: low-mass; stars: pre-main-sequence; techniques: photometric
- Coverage
- Damian B., SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews, KY16 9SS, United Kingdom, Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Road, Bengaluru, 560029, India; Jose J., Department of Physics, Indian Institute of Science Education and Research (IISER) Tirupati, Yerpedu, Andhra Pradesh, Tirupati, 517619, India; Das S.R., Department of Physics, Indian Institute of Science Education and Research (IISER) Tirupati, Yerpedu, Andhra Pradesh, Tirupati, 517619, India, Departamento de Astronom, Universidad de Chile, Las Condes, Santiago, 7591245, Chile; Gupta S., Department of Physics, Indian Institute of Science Education and Research (IISER) Tirupati, Yerpedu, Andhra Pradesh, Tirupati, 517619, India; Vaikundaraman V., Department of Physics, Indian Institute of Science Education and Research (IISER) Tirupati, Yerpedu, Andhra Pradesh, Tirupati, 517619, India, Max Planck Institute for Solar System Research, Justus-von-Liebig Weg 3, Gtingen, 37077, Germany; Ojha D.K., Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai, 400005, India; Kartha S.S., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Road, Bengaluru, 560029, India; Panwar N., Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital, 263001, India; Eswaraiah C., Department of Physics, Indian Institute of Science Education and Research (IISER) Tirupati, Yerpedu, Andhra Pradesh, Tirupati, 517619, India
- Rights
- All Open Access; Gold Open Access
- Relation
- ISSN: 358711; CODEN: MNRAA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Damian B.; Jose J.; Das S.R.; Gupta S.; Vaikundaraman V.; Ojha D.K.; Kartha S.S.; Panwar N.; Eswaraiah C., “Twins in diversity: Understanding circumstellar disc evolution in the twin clusters of W5 complex,” CHRIST (Deemed To Be University) Institutional Repository, accessed March 17, 2025, https://archives.christuniversity.in/items/show/12611.