4 citations · 7 across the 8 of their papers we have counts for
8 papers
Chemical abundances and doppler imaging of the Ap Si/He-wk star HD 100357
Athul Dileep, Santosh Joshi, Sofya Alexeeva +11
We present the results of time-resolved photometry, abundance analysis and Doppler imaging of an Ap star, HD 100357. The {\it TESS} photometry revealed rotational modulation with a…
Unveiling the Variability and Chemical Composition of AL Col
Surath C. Ghosh, Santosh Joshi, Samrat Ghosh +9
Using \tess\ short-cadence (120\,s) SAP flux, we identified a rotational frequency of 0.09655\, (\,d). Wavelet analysis reveals that while…
Asteroseismology of HD 23734, HD 68703, and HD 73345 using K2-TESS Space-based Photometry and High-resolution Spectroscopy
Santosh Joshi, Athul Dileep, Eugene Semenko +14
In this paper, we present a comprehensive study of three stars, HD 23734, HD 68703, and HD 73345, which were previously observed as chemically peculiar candidates within the Nainit…
Investigating Pulsating Variables and Eclipsing Binaries in NGC 2126 using Ground and Space-based Photometry, Astrometry, Spectroscopy and Modeling
Athul Dileep, Santosh Joshi, Sneh Lata +12
Pulsating variables are prevalent in the classical δ Scuti instability strip of intermediate-age open star clusters. The cluster membership of these stars facilitates a comparative…
Asteroseismology of the mild Am Sct star HD 118660 : TESS photometry and modelling
Mrinmoy Sarkar, Santosh Joshi, Marc-Antoine Dupret +9
We present the results of an asteroseismic study of HD 118660 (TIC 171729860), being a chemically peculiar (mild Am) star exhibiting Scuti ( Sct) pulsations. It is based on…
Linear polarization study of open clusters towards the anticenter direction: Signature of the spiral arms
Namita Uppal, Shashikiran Ganesh, Vincent Pelgrims +2
Our objective is to investigate the distribution of dust and associated large-scale structures of the Galaxy using optical linear polarization measurements of various open clusters…
Curve of Growth Analysis of SZ Lyn
Janaka Adassuriya, Shashikiran Ganesh, Peter de Cat +2
We present one high-resolution and a time series of 561 low-resolution follow-up spectroscopic observations of SZ Lyn. It is a high-amplitude Delta Scuti-type pulsating star in a b…
Amplitude Modulation in a Delta Scuti star HD118660
Mrinmoy Sarkar, Santosh Joshi, Peter de Cat
In this paper, we report the detection of amplitude modulation in a delta Scuti star HD118660. We found that the p-mode frequency at 24.3837 c/d varies periodically in amplitude wi…