84 citations · 400 across the 16 of their papers we have counts for
16 papers
Discovery of a barium blue straggler star in M67 and sighting of its WD companion*
Harshit Pal, Annapurni Subramaniam, Arumalla B. S. Reddy +1
We report the discovery of a barium blue straggler star (BSS) in M67, exhibiting enhancements in slow neutron-capture (-) process elements. Spectroscopic analysis of two BSSs (W…
The carbon star DY Persei may be a cool R Coronae Borealis variable
D. A. Garcia-Hernandez, N. Kameswara Rao, D. L. Lambert +3
Optical and near-IR photometry suggests that the carbon star DY Persei exhibits fadings similar to those of R Coronae Borealis (RCB) variables. Photometric surveys of the Galaxy an…
Revised surface abundances of R Coronae Borealis stars
Gajendra Pandey, B. P. Hema, Arumalla B. S. Reddy +5
Surface abundances of 14 (11 majority class and 3 minority class) R Coronae Borealis stars (RCBs) along with the final flash object, V4334 Sgr (Sakurai's object) are revised based…
Detection of CH, CH and H molecules in the Young Planetary Nebula IC 4997
N. Kameswara Rao, David L. Lambert, Arumalla B. S. Reddy +3
We have detected CH and CH molecular absorption lines from the young compact planetary nebula IC 4997 from high resolution optical spectra. A high-resolution infra-red (H and…
Omega Centauri: weak MgH-band in red giants directly trace the helium content
Arumalla B. S. Reddy
High spectral resolution and high signal-to-noise ratio optical spectra of red giants in the globular cluster Omega Centauri are analysed for stellar parameters and chemical abunda…
Unveiling Vela -- Variability of Interstellar Lines in the Direction of the Vela Supernova Remnant III. Na D and Ca II K
N. Kameswara Rao, David L. Lambert, Arumalla B. S Reddy +4
High-resolution optical spectra were obtained in 2017-2019 with The Southern African Large Telescope of fifteen stars in the direction of the Vela supernova remnant. Interstellar C…