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9 papers · 2 filters
Finding the evolutionary link between ULIRGs and radio galaxies
Ayisha Fida, Sumana Nandi, Mousumi Das +4
Ultraluminous infrared galaxies (ULIRGs) are the remnants of the major mergers of gas-rich galaxies. They are dusty systems and are extremely luminous in the infrared. Both starbur…
Radio emission from ultra-diffuse galaxies residing in galaxy clusters
Dharam V. Lal, Jeyasiona Murugesh
Ultra-diffuse galaxies (UDGs), defined by their extremely low surface brightness (-band mag arcsec) and large effective radii (3--10 arcsec), remain one of…
Star Formation at the Periphery of a Molecular Superbubble: The Case of G12.79+0.43
Arun Seshadri, Veena V. S., Sarita Vig +1
We present a multiwavelength investigation of the molecular cloud complex G12.79+0.43, which extends over on the sky. Several infrared- and radio-bright regions are arran…
uGMRT and MeerKAT observation of RXCJ0232-4420: a quiet cluster with a giant radio halo
Pralay Biswas, Ramananda Santra, Ruta Kale +1
Giant radio halos are the Mpc-scale extended sources associated with the merging clusters, while the mini-halos are preferentially associated with cool-core clusters. Both trace th…
Could the high-mass black holes from gravitational-wave observations be explained by lensing?
Ritesh Harshe, R. Prasad, Parameswaran Ajith
The high-mass () black holes (BHs) from the gravitational-wave (GW) observations of LIGO and Virgo came as a surprise to many astronomers. While the collapse…
AstroSat-UVIT observations of a possibly interacting pair of galaxies in HCG 77
Anshul Srivastava, Harvinder K. Jassal, Mamta Gulati +1
We aim to study star-forming regions and the spectral energy distribution of two possibly interacting galaxies, PGC 56121 and PGC 56125, in the Hickson Compact Group 77. We utilize…
MOSS II: Mid frequency radio catalog of Saraswati core region
Robert Kincaid, Edwin Retana-Montenegro, Bruno Slaus +6
The MeerKAT Observations of the Saraswati Supercluster (MOSS) is an ongoing project attempting to study the radio and optical properties of the core region of the Saraswati supercl…
G183: An outer galaxy filament feeding a massive protostar
Bhaswati Mookerjea, Saurav Sen, V. S. Veena +1
We present the first detailed multi-tracer observation of a 5-pc long outer Galaxy filament, G183, and the massive young stellar object (YSO) IRAS 05480+2545 associated with it. Us…
E-XQR-30: Evidence for an Increase in the Ionization State of Metal Absorbers from z~6 to z~2
Stephanie Rowlands, R. L. Davies, E. Ryan-Weber +15
We investigate the evolution of the ionization state of metal-enriched gas in and around galaxies near the epoch of reionization using a sample of 488 metal absorption systems at 4…