Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Arvind K. Dattatrey"'
Autor:
Kuldeep Belwal, D. Bisht, Mohit Singh Bisht, Geeta Rangwal, Ashish Raj, Arvind K. Dattatrey, R. K. S. Yadav, B. C. Bhatt
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 188 (2024)
We conducted a photometric and kinematic analysis of the young open cluster NGC 2345 using CCD UBV data from 2 m Himalayan Chandra Telescope, Gaia Data Release 3, Two Micron All-Sky Survey, and the Photometric All-Sky Survey data sets. We found 1732
Externí odkaz:
https://doaj.org/article/4b7cf1c994c5400fba5be3c48184d500
Autor:
R. K. S. Yadav, Arvind K. Dattatrey, Geeta Rangwal, Annapurni Subramaniam, D. Bisht, Ram Sagar
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 251 (2024)
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 star 646 is a nonmember of th
Externí odkaz:
https://doaj.org/article/bd735cc6863d4a57901fcde58aa31c09
Autor:
Arvind K. Dattatrey, R. K. S. Yadav, Sharmila Rani, Annapurni Subramaniam, Gaurav Singh, Snehalata Sahu, Ravi S. Singh
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 130 (2023)
We report the discovery of extremely low mass white dwarfs (ELM WDs) as a companion of blue straggler stars (BSSs) in the Galactic globular cluster NGC 362 using images from AstroSat's Ultra Violet Imaging Telescope (UVIT). Spectral energy distributi
Externí odkaz:
https://doaj.org/article/7eda8cb1c7e94267a68ff6aa3345530d
Autor:
Arvind K Dattatrey, R K S Yadav, Gourav Kumawat, Sharmila Rani, Gaurav Singh, Annapurni Subramaniam, Ravi S Singh
We report the discovery of four blue lurkers with low and extremely low-mass white dwarf (ELM WDs) companions in the Galactic globular cluster NGC 362 using AstroSat Ultra Violet Imaging Telescope (UVIT). We analyzed the multi-wavelength spectral ene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bfffacbfd78f4ea5e4fa36c162bba6c
http://arxiv.org/abs/2305.09723
http://arxiv.org/abs/2305.09723
Autor:
R. K. S. Yadav, Aditya Jaiswal, Arvind K. Dattatrey, Shobhit Yadav, Nandish Nanjappa, Neelam Panwar, Mukesh Kumar Jaiswar, Krishna Reddey, Jayshreekar Pant, Biman J. Medhi
Publikováno v:
Journal of Astronomical Instrumentation.
In this paper, we present the instrumental characterization and performance of the 4[Formula: see text]k CCD detector mounted on a 104-cm Sampurnanand telescope located at ARIES, Manora Peak Nainital, India. A detailed description of the filter wheel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23d5429273177c7b4656992bbe2dd008
https://doi.org/10.1142/s2251171722400062
https://doi.org/10.1142/s2251171722400062
The study of the dynamical status of the globular cluster NGC362 is presented using the spatial distribution of Blue Straggler Stars (BSSs). A significant cluster area is covered using multi-wavelength high-resolution space and ground-based data. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70525851df9c0dfed6ce4c409dccd108
Autor:
Arvind K. Dattatrey, R. K. S. Yadav, Sharmila Rani, Annapurni Subramaniam, Gaurav Singh, Snehalata Sahu, Ravi S. Singh
We report the discovery of extremely low-mass white dwarfs (ELM WDs) as a companion of blue straggler stars (BSSs) in the Galactic globular cluster NGC 362 using images from AstroSats Ultra Violet Imaging Telescope (UVIT). Spectral Energy Distributio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4d9ae18def3e4ade2dab8a9c7959b6a