Zobrazeno 1 - 10
of 2 328
pro vyhledávání: '"Stalin, P."'
Autor:
Reshma, M., Agarwal, Aditi, Stalin, C. S., Joseph, Prajwel, Dagore, Akanksha, Mandal, Amit Kumar, Devaraj, Ashish, Gudennavar, S. B.
Blazars, the peculiar class of active galactic nuclei (AGN), are known to show flux variations across the accessible electromagnetic spectrum. Though they have been studied extensively for their flux variability characteristics across wavelengths, in
Externí odkaz:
http://arxiv.org/abs/2408.06293
Autor:
Sidharth, A. V., Shridharan, B., Mathew, Blesson, Devaraj, A., Cysil, T. B., Stalin, C. S., Arun, R., Bhattacharyya, Suman, Kartha, Sreeja S., Robin, T.
In this study, we demonstrate the efficacy of the Ultraviolet Imaging Telescope (UVIT) in identifying and characterizing white dwarfs (WDs) within the Milky Way Galaxy. Leveraging the UVIT point source catalogue towards SMC and crossmatching with Gai
Externí odkaz:
http://arxiv.org/abs/2408.00852
Autor:
Jose, Jincen, Rakshit, Suvendu, Panda, Swayamtrupta, Woo, Jong-Hak, Stalin, C. S., Sharma, Neha, Pandey, Shivangi
The gamma-ray emitting narrow-line Seyfert 1 galaxies are a unique class of objects that launch powerful jets from relatively lower-mass black hole systems compared to the Blazars. However, the black hole masses estimated from the total flux spectrum
Externí odkaz:
http://arxiv.org/abs/2407.06761
Circumnuclear star formation (SF) is generally seen in galaxies hosting active galactic nuclei (AGN); however, the connection between the AGN activity and SF in them is less well understood. To explore this connection on scales of a few tens of parse
Externí odkaz:
http://arxiv.org/abs/2406.18103
Autor:
Kurian, Kshama S., Stalin, C. S., Rakshit, S., Mountrichas, G., Wylezalek, D., Sagar, R., Kissler-Patig, M.
We report here our comparative analysis of active galactic nucleus (AGN) and star formation (SF) characteristics of a sample of narrow-line Seyfert 1 (NLS1) and broad-line Seyfert 1 (BLS1) galaxies. Our sample consisted of 373 BLS1 and 240 NLS1 galax
Externí odkaz:
http://arxiv.org/abs/2406.11198
Revisiting the dust torus size-luminosity relation based on a uniform reverberation mapping analysis
Autor:
Mandal, Amit Kumar, Woo, Jong-Hak, Wang, Shu, Rakshit, Suvendu, Cho, Hojin, Son, Donghoon, Stalin, C. S.
We investigate the torus size -- luminosity relation of Type 1 AGNs based on the reverberation-mapping analysis using the light curves of the optical continuum and the IR continuum obtained with the W1 and W2-bands of the Wide-field Infrared Survey E
Externí odkaz:
http://arxiv.org/abs/2403.01885
Autor:
Stalin, Kawana, Mekoya, Mikias Berhanu
Generative Adversarial Networks (GANs) have demonstrated their versatility across various applications, including data augmentation and malware detection. This research explores the effectiveness of utilizing GAN-generated data to train a model for t
Externí odkaz:
http://arxiv.org/abs/2403.00890
The BL Lac object PKS 0735+178 was in its historic $\gamma$-ray brightness state during December 2021. This period also coincides with the detection of a neutrino event IC211208A, which was localized close to the vicinity of PKS 0735+178. We carried
Externí odkaz:
http://arxiv.org/abs/2401.12680
Autor:
Rajput, Bhoomika, Mandal, Amit Kumar, Pandey, Ashwani, Stalin, C. S., Max-Moerbeck, Walter, Mathew, Blesson
The correlation between optical and $\gamma$-ray flux variations in blazars reveals a complex behaviour. In this study, we present our analysis of the connection between changes in optical and $\gamma$-ray emissions in the blazar Ton 599 over a span
Externí odkaz:
http://arxiv.org/abs/2312.14857
Narrow-line Seyfert 1 (NLSy1) galaxies are an enigmatic class of active galactic nuclei (AGN) that exhibit peculiar multiwavelength properties across the electromagnetic spectrum. For example, these sources have allowed us to explore the innermost re
Externí odkaz:
http://arxiv.org/abs/2311.13818