33 citations · 192 across the 10 of their papers we have counts for
10 papers
Field blue straggler stars: Discovery of white dwarf companions to blue metal-poor stars using UVIT/AstroSat
Anju Panthi, Annapurni Subramaniam, Kaushar Vaidya +4
Blue metal-poor (BMP) stars are the main-sequence stars that appear bluer and more luminous than normal turn-off stars of metal-poor globular clusters. They are believed to be eith…
Study of blue metal-poor stars using UVIT/AstroSat
Anju Panthi, Annapurni Subramaniam, Kaushar Vaidya +5
Blue metal-poor stars are main-sequence stars that are bluer and brighter than typical turn-off stars in metal-poor globular clusters. They are thought to have either evolved throu…
UOCS-VIII. UV Study of the open cluster NGC 2506 using ASTROSAT
Anju Panthi, Kaushar Vaidya, Vikrant Jadhav +4
We study an intermediate-age open cluster NGC 2506 using the \textit{ASTROSAT}/UVIT data and other archival data. We identified 2175 cluster members using a machine learning-based…
UOCS VII. Blue Straggler Populations of Open Cluster NGC 7789 with UVIT/AstroSat
Kaushar Vaidya, Anju Panthi, Manan Agarwal +4
NGC 7789 is a 1.6 Gyr old, populous open cluster located at 2000 pc. We characterize the blue straggler stars (BSS) of this cluster using the Ultraviolet (UV) data from…
UOCS.VI. UVIT/AstroSat detection of low-mass white dwarf companions to 4 more blue stragglers in M67
Sindhu Pandey, Annapurni Subramaniam, Vikrant Jadhav
Blue stragglers stars (BSSs) in M67 have attracted attention from observations and theory to unravel their formation mechanisms. In the series of Ultra Violet Imaging Telescope (UV…
UOCS. IV. Discovery of diverse hot companions to blue stragglers in the old open cluster King 2
Vikrant V. Jadhav, Sindhu Pandey, Annapurni Subramaniam +1
King 2, one of the oldest clusters in the Milky Way, with an age of 6 Gyr and distance of pc, has been observed with UVIT payload on the \textit{ASTROSAT}. With…
PKS1830-211: OH and HI at z=0.89 and the first MeerKAT UHF spectrum
F. Combes, N. Gupta, S. Muller +20
The Large Survey Project (LSP) "MeerKAT Absorption Line Survey" (MALS) is a blind HI 21-cm and OH 18-cm absorption line survey in the L- and UHF-bands, with the primary goal to bet…
UOCS. V. UV study of the old open cluster NGC 188 using AstroSat
Sharmila Rani, Annapurni Subramaniam, Sindhu Pandey +3
We present the UV photometry of the old open cluster NGC188 obtained using images acquired with Ultraviolet Imaging Telescope (UVIT) on board the ASTROSAT satellite, in two far-UV…
UVIT/ASTROSAT studies of Blue Straggler stars and post-mass transfer systems in star clusters: Detection of one more blue lurker in M67
Annapurni Subramaniam, Sindhu Pandey, Vikrant V. Jadhav +1
The blue straggler stars (BSSs) are main-sequence (MS) stars, which have evaded stellar evolution by acquiring mass while on the MS. The detection of extremely low mass (ELM) white…
Blind HI and OH absorption line search: first results with MALS and uGMRT processed using ARTIP
N. Gupta, P. Jagannathan, R. Srianand +32
We present details of the Automated Radio Telescope Imaging Pipeline (ARTIP) and results of a sensitive blind search for HI and OH absorbers at and , respectively. A…