Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Rastogi, Shantanu"'
Autor:
Tripathi, Tushar, Gupta, Alok C., Takey, Ali, Bachev, Rumen, Vince, Oliver, Strigachev, Anton, Kushwaha, Pankaj, Elhosseiny, E. G., Wiita, Paul J., Damljanovic, G., Dhiman, Vinit, Fouad, A., Gaur, Haritma, Gu, Minfeng, Hamed, G. E., Kishore, Shubham, Kurtenkov, A., Rastogi, Shantanu, Semkov, E., Zead, I., Zhang, Zhongli
We present an extensive recent multi-band optical photometric observations of the blazar S5 0716+714 carried out over 53 nights with two telescopes in India, two in Bulgaria, one in Serbia, and one in Egypt during 2019 November -- 2022 December. We c
Externí odkaz:
http://arxiv.org/abs/2311.10358
We present photometric and kinematic analysis of an intermediate age open cluster NGC 1027 using $UBV(RI)_c$ and Gaia Early Data Release 3 (EDR3) data. Structural and fundamental parameters such as cluster center, cluster extent, reddening, age and d
Externí odkaz:
http://arxiv.org/abs/2304.05762
Publikováno v:
Journal of Molecular Spectroscopy, 2022, 111720
Computational study of polycyclic aromatic hydrocarbons (PAHs) with phenyl side group substituted at different positions is reported. The infrared spectral variations due to the position of phenyl substitution, ionization state and the size of the mo
Externí odkaz:
http://arxiv.org/abs/2211.13684
We present a comparative study of the physical properties of a homogeneous sample of 144 Narrow line Seyfert 1 (NLSy1) and 117 Broad-line Seyfert 1 (BLSy1) galaxies. These two samples are in a similar luminosity and redshift range and have optical sp
Externí odkaz:
http://arxiv.org/abs/2112.09150
Autor:
Jha, Vivek Kumar, Joshi, Ravi, Chand, Hum, Wu, Xue-Bing, Ho, Luis C., Rastogi, Shantanu, Ma, Qinchun
We present the accretion disk size estimates for a sample of 19 active galactic nuclei (AGN) using the optical $g$, $r$, and $i$ band light curves obtained from the Zwicky Transient Facility (ZTF) survey. All the AGN have reliable supermassive black
Externí odkaz:
http://arxiv.org/abs/2109.05036
Autor:
Anand, Rahul Kumar, Rastogi, Shantanu, Kumar, Brijesh, Ghosh, Arpan, Sharma, Saurabh, Ojha, D. k., Ghosh, S. k.
Publikováno v:
Journal Astrophysics and Astronomy, 41, 27 (2020)
High resolution infrared imaging observations of the young Planetary Nebulae NGC 7027 and BD +303639, taken with the newly installed TIFR Infrared Camera-II (TIRCAM2) on 3.6m Devasthal Optical Telescope (DOT), ARIES, Nainital, are being reported. The
Externí odkaz:
http://arxiv.org/abs/2010.01411
Autor:
Singh, Rashmi, Rastogi, Shantanu
Publikováno v:
International Journal of Scientific Research in Physics and Applied Sciences, 2018, Vol. 6(5), 92-104
Polycyclic aromatic hydrocarbons (PAHs) appear to be ubiquitous in terrestrial atmosphere as well as in the interstellar medium (ISM). In the astrophysical context presence of PAHs is interpreted by the observations of mid-IR emission bands at 3.3, 6
Externí odkaz:
http://arxiv.org/abs/1903.10397
Publikováno v:
In Journal of Molecular Spectroscopy January 2023 391
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Publikováno v:
In Journal of Atmospheric and Solar-Terrestrial Physics 1 September 2022 235