activity
20232026
most citedPhotometric variable stars in the young open cluster NGC 6823

8 citations · 10 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2026

High-precision K2/TESS Photometry and HERMES Spectroscopy of Four Bright Field Stars

Otto Trust, Santosh Joshi, Benard Nsamba +13

Space-based photometry from K2 and TESS, coupled with high-resolution spectroscopy, provides a unique opportunity to re-examine the variability and chemical nature of four bright s…

astro-ph.SR2025★ 2 cited

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…

astro-ph.SR2025

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…

astro-ph.SR2025

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…

astro-ph.SR2025

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…

astro-ph.GA2023

Optical polarisation study of Galactic Open clusters

Namita Uppal, Shashikiran Ganesh, Santosh Joshi +3

Dust is a ubiquitous component in our Galaxy. It accounts for only mass of the ISM but still is an essential part of the Galaxy. It affects our view of the Galaxy by obscurin…

astro-ph.SR2023

TESS Exploration of Targets Investigated for the Nainital-Cape Survey Project

Athul Dileep, Santosh Joshi, Donald Wayen Kurtz

The Nainital-Cape Survey was initiated more than two decades ago aiming to search for and study the pulsational variability in two subclasses of chemically peculiar (CP) stars, nam…

astro-ph.SR2023★ 8 cited

Photometric variable stars in the young open cluster NGC 6823

Sneh Lata, W. P. Chen, J. C. Pandey +8

We present stellar variability towards the young open cluster NGC\,6823. Time series - and -band CCD photometry led to identification and characterization of 88 variable star…