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Browsing by Author "Bandyopadhyay, A"

Browsing by Author "Bandyopadhyay, A"

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  • A high-resolution spectroscopic study of two new Na- and Al-rich field giants–likely globular cluster escapees in the galactic halo 
    Bandyopadhyay, A; Sivarani, T; Beers, T. C; Susmitha Rani, A (Oxford University Press on behalf of the Royal Astronomical Society, 2020-05)
    The stars SDSS J0646+4116 and SDSS J1937+5024 are relatively bright stars that were initially observed as a part of the SDSS/MARVELS pre-survey. They were selected, on the basis of their weak CH G bands, along with a total ...
  • Horizons: nuclear astrophysics in the 2020s and beyond 
    Schatz, H; Becerril Reyes, A. D; Best, A; Brown, E. F; Chatziioannou, K; Chipps, K. A; Deibel, C. M; Ezzeddine, R; Galloway, D. K; Hansen, C. J; Herwig, F; Gibson, B. K; Gorda, T; Gourgouliatos, K. N; Graber, V; Gupta, M; Haxton, W. C; Heger, A; Nevins, B; Hix, W. R; Ho, W. C. G; Rebeiro, B. M; Holmbeck, E. M; Hood, A. A; Huth, S; Imbriani, G; Izzard, R. G; Jain, R; Jayatissa, H; Johnston, Z; Newton, W. G; Kajino, T; Reifarth, R; Kankainen, A; Kiss, G. G; Kwiatkowski, A; La Cognata, M; Laird, A. M; Lamia, L; Landry, P; Laplace, E; Launey, K. D; Nguyen, L. Q; Richard, A. L; Leahy, D; Leckenby, G; Lennarz, A; Longfellow, B; Lovell, A. E; Lynch, W. G; Lyons, S. M; Maeda, K; Masha, E; Matei, C; Rijal, N; Nishikawa, K; Merc, J; Messer, B; Montes, F; Mukherjee, A; Nishimura, N; Nunes, F. M; O'Connor, E; O'Shea, B. W; Ji, A. P; Roederer, I. U; Ong, W. J; Pain, S. D; Pajkos, M. A; Pignatari, M; Pizzone, R. G; Placco, V. M; Plewa, T; Pritychenko, B; Psaltis, A; Puentes, D; Rojo, J. S; Lugaro, M; Qian, Y-Z; Radice, D; Rapagnani, D; J. S. K; Meisel, Z; Saito, Y; Schwenk, A; Cote, B; Sergi, M. L; Sidhu, R. S; Simon, A; Sivarani, T; Skuladottir, A; Smith, M. S; Spiridon, A; Sprouse, T. M; Norman, D; Starrfield, S; Caplan, M. E; Steiner, A. W; Strieder, F; Sultana, I; Surman, R; Szucs, T; Tawfik, A; Thielemann, F; Trache, L; Trappitsch, R; Read, J. S; Champagne, A. E; Tsang, M. B; Tumino, A; Upadhyayula, S; Valle Martínez, J. O; Van der Swaelmen, M; Viscasillas Vazquez, C; Watts, A; Wehmeyer, B; Wiescher, M; Wrede, C; Clark, J. A; Roberts, L. F; Yoon, J; Zegers, R. G. T; Zermane, M. A; Zingale, M; Spyrou, A; Timmes, F. X; Travaglio, C; Vassh, V; Abia, C; Couder, M; Adsley, P; Agarwal, S; Aliotta, M; Aoki, W; Arcones, A; Aryan, A; Bandyopadhyay, A; Banu, A; Bardayan, D. W; Barnes, J; Couture, A; Bauswein, A; Beers, T. C; Bishop, J; Boztepe, T; de Mink, S. E; Debnath, S; deBoer, R. J; den Hartogh, J; Mumpower, M. R; Denissenkov, P; Dexheimer, V; Dillmann, I; Escher, J. E; Famiano, M. A; Farmer, R; Fisher, R; Frohlich, C; Frebel, A; Fryer, C; Neto, D; Fuller, G; Ganguly, A. K; Ghosh, S (IOP Publishing, 2022-11)
    Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper ...
  • Li Distribution, Kinematics, and Detailed Abundance Analysis among Very Metal-poor Stars in the Galactic Halo from the HESP-GOMPA Survey 
    Bandyopadhyay, A; Sivarani, T; Beers, Timothy C; Susmitha, A; Nayak, Prasanta K; Pandey, Jeewan C (American Astronomical Society, 2022-10-01)
    We present a study on the detailed elemental abundances of newly identified, bright, very metal-poor stars with the detection of lithium, initially observed as part of the SDSS/MARVELS pre-survey. These stars were selected ...
  • Optical and NIR spectroscopy of cool CEMP stars to probe the nucleosynthesis in low-mass AGB binary system 
    Susmitha, A; Ojha, D. K; Sivarani, T; Ninan, J. P; Bandyopadhyay, A; Surya, Arun; Unni, Athira (Oxford University Press on behalf of Royal Astronomical Society, 2021-09)
    We present the abundance analyses of seven carbon enhanced metal-poor (CEMP) stars to understand the origin of carbon in them. We used high-resolution optical spectra to derive abundances of various elements. We also used ...
  • Oxygen abundances of carbon-enhanced stellar population in the halo 
    Susmitha, A; Sivarani, T; Ojha, D. K; Ninan, Joe P; Bandyopadhyay, A; Surya, A; Athira, U (Springer, 2020-12)
    The large fraction of carbon-enhanced metal-poor (CEMP) stars at lower metallicities makes them an interesting class of objects to be probed further in greater detail. They show different abundance patterns of neutron-capture ...
  • Study of milky way halo stars and connection to globular clusters 
    Bandyopadhyay, A (Indian Institute of Astrophysics, 2019-03)
    The thesis aims to study the chemical abundances of very metal poor Milky Way halo stars and Globular cluster stars, to understand their possible common origin. Halo stars and globular clusters belong to the oldest stellar ...
  • UVIT-HST-Gaia-VISTA study of Kron 3 in the small magellanic cloud: a cluster with an extended red clump in ultraviolet 
    Nayak, P. K; Subramaniam, A; Subramanian, S; Sahu, S; Mondal, C; Cioni, Maria-Rosa L; Bell, Cameron P. M; Bandyopadhyay, A; Chung, Chul (Oxford University Press on behalf of the Royal Astronomical Society, 2021-06)
    We have demonstrated the advantage of combining multiwavelength observations, from the ultraviolet (UV) to near-infrared, to study Kron 3, a massive star cluster in the Small Magellanic Cloud. We have estimated the radius ...

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