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Browsing by Author "Bisht, D"

Browsing by Author "Bisht, D"

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  • A Comprehensive Study of Five Intermediate-age Pismis (2, 3, 7, 12, 15) Clusters Using Photometric and Astrometric Data from Gaia EDR3 
    Bisht, D; Zhu, Qingfeng; Elsanhoury, W. H; Yadav, R. K. S; Rangwal, Geeta; Sariya, Devesh P; Durgapal, Alok; Jiang, Ing-Guey (American Astronomical Society, 2022-11-01)
    Open clusters are groups of stars that form simultaneously; hence, these are excellent probes to test theories of star formation, stellar evolution, and dynamics in the Milky Way disk. We carry out a detailed photometric ...
  • A Deep Investigation of Two Poorly Studied Open Clusters Haffner 22 and Melotte 71 in the Gaia era 
    Bisht, D; Zhu, Qingfeng; Yadav, R. K. S; Rangwal, Geeta; Sariya, Devesh P; Durgapal, Alok; Jiang, Ing-Guey (IOP Publishing, 2022-04)
    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 probable cluster members with membership ...
  • A Deep Study of the Open Cluster NGC 5288 Using Photometric and Astrometric Data from GAIA DR3 and 2MASS 
    Sethi, Ritika; Bisht, D; Rangwal, Geeta; Raj, A (Instituto de Astronomıa, Universidad Nacional Autonoma de Mexico, 2023-10)
    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 right ascension and declination are estimated ...
  • A Gaia based analysis of open cluster Berkeley 27 
    Sariya, Devesh P; Jiang, Ing-Guey; Bisht, D; Yadav, R. K. S; Rangwal, Geeta (Elsevier B.V, 2023-01)
    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 picked within the cluster’s radius based ...
  • Investigating kinematics and dynamics of three open clusters towards Galactic anticentre 
    Rangwal, Geeta; Yadav, R. K. S; Bisht, D; Durgapal, Alok; Sariya, Devesh P (Oxford University Press on behalf of Royal Astronomical Society, 2023-08)
    We present the intracluster kinematics and dynamics of three open clusters: NGC 1193, NGC 2355, and King 12 by incorporating kinematical and photometric data from Gaia DR3, as well as a ground-based telescope. After ...
  • Non-sinusoidal transit timing variations for the exoplanet HAT-P-12b 
    Sariya, Devesh P; Jiang, I.- G; Su, Li-Hsin; Yeh, Li-Chin; Chang, Tze-En; Moskvin, V. V; Shlyapnikov, A. A; Ignatov, V; Mkrtichian, David; Griv, Evgeny; Mannaday, Vineet Kumar; Thakur, Parijat; Sahu, D. K; Chand, Swadesh; Bisht, D; Sun, Zhao; Ji, Jianghui (IOP Publishing, 2021-04)
    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 curves observed between 2011 and 2015 from three ...
  • UOCS. XIII. Study of the Far-ultraviolet Bright Stars in the Open Cluster NGC 2420 Using AstroSat 
    Yadav, R. K. S; Dattatrey, Arvind K; Rangwal, Geeta; Subramaniam, A; Bisht, D; Sagar, R (American Astronomical Society, 2024-02-01)
    We present the study of four far-ultraviolet (FUV) bright stars in the field of the open cluster NGC 2420 using the Ultra Violet Imaging Telescope mounted on AstroSat. The three stars 525, 527, and 560 are members, while ...

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