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Hunting Down White Dwarf--Main Sequence Binaries Using Multi-Wavelength Observations
Prasanta K. Nayak, Anindya Ganguly, Sourav Chatterjee
Identification of white dwarfs (WD) with main-sequence (MS) companions and characterization of their properties can put important constraints on our understanding of binary stellar…
White Dwarfs Revealed in Gaia's Candidate Compact Object Binaries
Anindya Ganguly, Prasanta K. Nayak, Sourav Chatterjee
Discovery and characterisation of black holes (BHs), neutron stars (NSs), and white dwarfs (WDs) with detached luminous companions (LCs) in wide orbits are exciting because they ar…
Globular Cluster UVIT legacy Survey (GlobUleS) III. Omega Centauri in Far-Ultraviolet
Deepthi S. Prabhu, Annapurni Subramaniam, Snehalata Sahu +21
We present the first comprehensive study of the most massive globular cluster Omega Centauri in the far-ultraviolet (FUV) extending from the center to ~ 28% of the tidal radius usi…
Dynamically Forming Extremely Low-Mass White Dwarf Binaries in Wide Orbits
Ambreesh Khurana, Chirag Chawla, Sourav Chatterjee
The detection of a 0.2 Msun extremely low-mass white dwarf (EW) in a wide orbit (Porb about 450 days) with a 1.1 Msun main-sequence (MS) companion, KIC 8145411, challenges our curr…
Weighing the Darkness II: Astrometric Measurement of Partial Orbits with Gaia
Jeff J. Andrews, Katelyn Breivik, Chirag Chawla +2
Over the course of several years, stars trace helical trajectories as they traverse across the sky due to the combined effects of proper motion and parallax. It is well known that…
A Dynamical Survey of Stellar-Mass Black Holes in 50 Milky Way Globular Clusters
Newlin C. Weatherford, Sourav Chatterjee, Kyle Kremer +1
Recent numerical simulations of globular clusters (GCs) have shown that stellar-mass black holes (BHs) play a fundamental role in driving cluster evolution and shaping their presen…