42 citations · 250 across the 23 of their papers we have counts for
23 papers
Exploring NGC 2345: A Comprehensive Study of a Young Open Cluster through Photometric and Kinematic Analysis
Kuldeep Belwal, D. Bisht, Mohit Singh Bisht +5
We conducted a photometric and kinematic analysis of the young open cluster NGC 2345 using CCD \emph{UBV} data from 2-m Himalayan Chandra Telescope (HCT), \emph{Gaia} Data Release…
UOCS XIII. Study of the FUV bright stars in the open cluster NGC 2420 using ASTROSAT
R. K. S. Yadav, Arvind K. Dattatrey, Geeta Rangwal +3
We present the study of four FUV stars in the field of open cluster NGC 2420 using the Ultra Violet Imaging Telescope (UVIT) mounted on AstroSat. The three stars 525, 527, and 560…
A deep study of open cluster NGC 5288 using photometric and astrometric data from Gaia DR3 and 2MASS
Ritika Sethi, D. Bisht, Geeta Rangwal +1
This paper investigates a poorly studied open cluster, NGC 5288, using 2MASS JHKS and the recently released Gaia DR3 astrometric and photometric data. The mean proper motions in Ri…
Investigating kinematics and dynamics of three open clusters towards Galactic anti-center
Geeta Rangwal, R. K. S. Yadav, D. Bisht +2
We present the intra-cluster kinematics and dynamics of three open clusters: NGC 1193, NGC 2355, and King 12 by incorporating kinematical and photometric data from Gaia DR3, as wel…
A Gaia based analysis of open cluster Berkeley 27
Devesh P. Sariya, Ing-Guey Jiang, D. Bisht +2
In this paper, we have used the Gaia's Data Release-3 (DR3) data to study an intermediate-age open cluster Berkeley 27 (Be 27). A total of 131 most probable cluster members are pic…
Optical linear polarization study towards Czernik 3 open cluster at different spatial scales
Namita Uppal, Shashikiran Ganesh, D. Bisht
We present the optical linear polarization observation of stars towards the core of the Czernik 3 cluster in the Sloan i-band. The data were obtained using the EMPOL instrument on…
A deep investigation of two poorly studied open clusters Haffner 22 and Melotte 71 in Gaia era
D. Bisht, Quingfeng Zhu, R. K. S. Yadav +4
This paper presents a deep investigation of two open clusters, Haffner 22 and Melotte 71, using astrometric and photometric data from Gaia EDR3. We identified 382 and 597 most prob…
Study of an intermediate age open cluster IC 1434 using ground-based imaging and Gaia DR2 astrometry
Y. H. M. Hendy, D. Bisht
We present a detailed photometric and kinematical analysis of poorly studied open cluster IC 1434 using CCD VRI, APASS, and Gaia DR2 database for the first time. BY determining the…
A Gaia based photometric and kinematic analysis of the old open cluster King 11
Devesh P. Sariya, Ing-Guey Jiang, D. Bisht +5
This paper presents an investigation of an old age open cluster King 11 using Gaia's Early Data Release 3 (EDR3) data. Considering the stars with membership probability () $>…
Detailed analysis of the poorly studied northern open cluster NGC 1348 using multi-color photometry and GAIA EDR3 astrometry
D. Bisht, Qingfeng Zhu, W. H. Elsanhoury +5
The membership determination for open clusters in noisy environments of the Milky Way is still an open problem. In this paper, our main aim is provide the membership probability of…
Multi-colour photometry and Gaia EDR3 astrometry of two couples of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324)
D. Bisht, Qingfeng Zhu, R. K. S. Yadav +5
This paper presents a comprehensive analysis of two pairs of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324) located in the fourth quadrant of our Galaxy. Fo…
A deep study of an intermediate age open cluster SAI 35 (Juchert 20) using ground based imaging and Gaia EDR3 astrometry
D. Bisht, Qingfeng Zhu, R. K. S. Yadav +4
We present CCD photometric study of poorly studied intermediate age open cluster SAI 35 (Juchert 20) for the first time. To accomplish this study, we also used LAMOST DR5, 2…
Non-Sinusoidal Transit Timing Variations for the Exoplanet HAT-P-12b
Devesh P. Sariya, Ing-Guey Jiang, Li-Hsin Su +14
Considering the importance of investigating the transit timing variations (TTVs) of transiting exoplanets, we present a follow-up study of HAT-P-12b. We include six new light curve…
A comprehensive analysis of NGC 2158 in Gaia era: photometric parameters, apex and orbit
Devesh P. Sariya, Ing-Guey Jiang, M. D. Sizova +7
We present an investigation of NGC 2158 using Gaia-DR2 data. We identified 800 most likely cluster members with membership probability higher than 90%. The mean proper motions of t…
Optimal angle bounds for quadrilateral meshes
Christopher J. Bishop
We show that any simple planar n-gon can be meshed in linear time by quadrilaterals with all new angles bounded between and degrees.
An investigation of poorly studied open cluster NGC 4337 using multi-color photometric and Gaia DR2 astrometric data
D. Bisht, W. H. Elsanhoury, Qingfeng Zhu +5
We present a comprehensive analysis (photometric and kinematical) of poorly studied open cluster NGC 4337 using 2MASS, WISE, APASS, and Gaia~DR2 database. By determining the member…
A Comprehensive study of open clusters Czernik 14, Haffner 14, Haffner 17 and King 10 using multicolour photometry and Gaia DR2 astrometry
D. Bisht, Qingfeng Zhu, R. K. S. Yadav +2
This paper presents an investigation on the four open clusters Czernik 14, Haffner 14, Haffner 17 and King 10 located near the Perseus arm of Milky Way Galaxy using Gaia DR2, 2MASS…
A Search for variable stars in the four open star clusters
Alok Durgapal, Geeta Rangwal, D. Bisht +3
We present a CCD photometric survey for the search of variable stars in four open clusters namely Berkeley 69, King 5, King 7, and Berkeley 20. The time series observations were ca…
Study of open cluster King 13 using CCD VI, 2MASS and Gaia DR2 Astrometry
Alok Durgapal, D Bisht, Geeta Rangwal +2
In this paper, we present astrophysical parameters of the open cluster King 13 based on the VI CCD and 2MASS JHKs photometric data. This is a poorly studied cluster, for which new…
Astrometric and photometric study of NGC 6067, NGC 2506 and IC 4651 open clusters based on wide-field ground and Gaia DR2 data
Geeta Rangwal, R. K. S. Yadav, Alok Durgapal +2
We present an analysis of three southern open star clusters NGC 6067, NGC 2506 and IC 4651 using wide-field photometric and Gaia DR2 astrometric data. They are poorly studied clust…
Mass function and dynamical study of the open clusters Berkeley 24 and Czernik 27
D. Bisht, R. K. S. Yadav, Shashikiran Ganesh +3
We present a photometric study of the open clusters Berkeley 24 (Be 24) and Czernik 27 (Cz 27). The radii of the clusters are determined as 2\farcm7 and 2\farcm3 for Be 24 a…
Interstellar extinction in twenty open star clusters
Geeta Rangwal, R. K. S. Yadav, Alok Durgapal +1
The interstellar extinction law in twenty open star clusters namely Berkeley 7, Collinder 69, Hogg 10, NGC 2362, Czernik 43, NGC 6530, NGC 6871, Bochum 10, Haffner 18, IC 4996, NGC…
Photometric studies of open star clusters Haffner 11 and Czernik 31
D. Bisht, R. K. S. Yadav, A. K. Durgapal
We present the broad band UBVI CCD photometric investigations in the region of the two open clusters Haffner 11 and Czernik 31. The radii of the clusters are determined as 3.5 arcm…