35 citations · 135 across the 15 of their papers we have counts for
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The impact of stellar rotations and binaries on the shape of upper main sequence near turn off in open cluster NGC\,6067
Jayanand Maurya, Yu Zhang, Sebastian Kamann +7
We present the analysis of the extended Main Sequence Turn-Off (eMSTO) in the open cluster NGC\,6067. We derive the projected rotational velocity, \textit{v}sin\textit{i}, of the s…
Exploring Contact Binaries: Observational Analysis of four W Uma Binaries Using Photometry and Spectroscopy
Alaxender Panchal, Yogesh Chandra Joshi, Vishal Joshi +1
We present the multi-band photometric and low-resolution spectroscopic analysis of four W Ursae Majoris eclipsing binaries (EWs) - J080510.1+141528 (hereinafter as J0805a), J080516…
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…
Origin of extended Main Sequence Turn Off in open cluster NGC 2355
Jayanand Maurya, M. R. Samal, Louis Amard +5
The presence of extended Main Sequence Turn-Off (eMSTO) in the open clusters has been attributed to various factors, such as spread in rotation rates, binary stars, and dust-like e…
On the stability and pulsation in models of B[e] star MWC 137
Sugyan Parida, Abhay Pratap Yadav, Michaela Kraus +3
B[e] type stars are characterised by strong emission lines, photometric spectroscopic variabilities and unsteady mass-loss rates. MWC 137 is a galactic B[e] type star situated…
Investigating stellar variability in the open cluster region NGC 381
Jayanand Maurya, Yogesh C. Joshi, A. Panchal +1
We study variable stars in the field of the open cluster NGC 381 using photometric data observed over 27 nights and identify a total of 57 variable stars out of which five are memb…
Long-term photometric and low-resolution spectroscopic analysis of five contact binaries
Alaxender Panchal, Yogesh C. Joshi, Peter De Cat +1
A photometric and spectroscopic investigation is performed on five W Ursae Majoris eclipsing binaries (EWs) J015818.6+260247 (hereinafter as J0158b), J073248.4+405538 (hereinafter…
Photometric and Spectroscopic analysis of four contact binaries
Alaxendra Panchal, Yogesh C. Joshi
We present the photometric and spectroscopic analysis of four W UMa binaries J015829.5+260333 (hereinafter as J0158), J030505.1+293443 (hereinafter as J0305), J102211.7+310022 (her…
Variable stars in the field of intermediate-age open cluster NGC 559
Yogesh C. Joshi, Ancy Anna John, Jayanand Maurya +3
This work presents the first long-term photometric variability survey of the intermediate-age open cluster NGC 559. Time-series V band photometric observations on 40 nights taken o…
Photometric, kinematic and variability study in the young open cluster NGC 1960
Yogesh C. Joshi, Jayanand Maurya, Ancy Anna John +3
We present a comprehensive photometric analysis of a young open cluster NGC 1960 (M36) along with the long-term variability study of this cluster. Based on the kinematic data of Ga…
High-resolution Spectroscopy and Spectropolarimetry of Selected Delta Scuti Pulsating Variables
Santosh Joshi, Eugene Semenko, A. Moiseeva +5
The combination of photometry, spectroscopy and spectropolarimetry of the chemically peculiar stars often aims to study the complex physical phenomena such as stellar pulsation, ch…
The Nainital-Cape Survey-IV
Santosh Joshi, P. Martinez, Sowgata Chowdhury +6
The Nainital-Cape survey is a dedicated ongoing survey programme to search for and study pulsational variability in chemically peculiar (CP) stars to understand their internal stru…
Complex stellar system ESO65SC03: Open cluster or remnant?
Gireesh C. Joshi, Y. C. Joshi, S. Joshi +2
We present a complete spatial and dynamical study of the poorly populated stellar system ESO65SC03. The radial distribution of the system gives a core and cluster radii of 1.10+/-0…