Zobrazeno 1 - 10
of 85
pro vyhledávání: '"MOHAN, PRASHANTH"'
Autor:
Lao, Bao-Qiang, Yang, Xiao-Long, Jaiswal, Sumit, Mohan, Prashanth, Sun, Xiao-Hui, Qin, Sheng-Li, Zhao, Ru-Shuang
Publikováno v:
2024, Research in Astronomy and Astrophysics Volume 24, Pages 035021
We present an independent catalog (FRIIRGcat) of 45,241 Fanaroff-Riley Type II (FR-II) radio galaxies compiled from the Very Large Array Faint Images of the Radio Sky at Twenty-centimeters (FIRST) survey and employed the deep learning method. Among t
Externí odkaz:
http://arxiv.org/abs/2401.08048
Autor:
Wang, Ailing, An, Tao, Guo, Shaoguang, Mohan, Prashanth, Chamani, Wara, Baan, Willem A., Hovatta, Talvikki, Falcke, Heino, Galvin, Tim J., Hurley-Walker, Natasha, Jaiswal, Sumit, Lahteenmaki, Anne, Lao, Baoqiang, Lv, Weijia, Tornikoski, Merja, Zhang, Yingkang
Disk winds and jets are ubiquitous in active galactic nuclei (AGN), and how these two components interact remains an open question. We study the radio properties of a radio-intermediate quasar III Zw 2. We detect two jet knots J1 and J2 on parsec sca
Externí odkaz:
http://arxiv.org/abs/2212.13735
Autor:
Yang, Xiaolong, Mohan, Prashanth, Yang, Jun, Ho, Luis C., Aditya, J. N. H. S., Zhang, Shaohua, Jaiswal, Sumit, Yang, Xiaofeng
Observational searches for intermediate-mass black holes (IMBHs; $10^2 - 10^6$ $M_\odot$) include relatively isolated dwarf galaxies. For those that host active galactic nuclei (AGNs), the IMBH nature may be discerned through the accretion - jet acti
Externí odkaz:
http://arxiv.org/abs/2211.00050
Autor:
Breiding, Peter, Burke-Spolaor, Sarah, An, Tao, Bansal, Karishma, Mohan, Prashanth, Taylor, Gregory B., Zhang, Yingkang
Previous Ku-band (15 GHz) imaging with data obtained from the Very Long Baseline Array (VLBA) had shown two compact, sub-pc components at the location of a presumed kpc-scale radio core in the Seyfert galaxy NGC 7674. It was then presumed that these
Externí odkaz:
http://arxiv.org/abs/2205.14463
Autor:
Nanci, Cristina, Giroletti, Marcello, Orienti, Monica, Migliori, Giulia, Moldón, Javier, Garrappa, Simone, Kadler, Matthias, Ros, Eduardo, Buson, Sara, An, Tao, Pérez-Torres, Miguel A., D'Ammando, Filippo, Mohan, Prashanth, Agudo, Ivan, Sohn, Bong W., Castro-Tirado, Alberto J., Zhang, Yingkang
Publikováno v:
A&A 663, A129 (2022)
Context. Many questions on the nature of astrophysical counterparts of high-energy neutrinos remain unanswered. There is increasing evidence of a connection between blazar jets and neutrino events, with the flare of the gamma-ray blazar TXS0506+056 i
Externí odkaz:
http://arxiv.org/abs/2203.13268
A tidal disruption event (TDE) involves the shredding of a star in the proximity of a supermassive black hole (SMBH). The nearby ($\approx$230 Mpc) relatively radio-quiet, thermal emission dominated source AT2019dsg is the first TDE with a potential
Externí odkaz:
http://arxiv.org/abs/2106.15799
Publikováno v:
2021, ApJ, 914, 46
The flat spectrum radio quasars (FSRQs) are a sub-class of blazars characterised by prominent optical emission lines and a collimated large-scale jet along the observer line of sight. An X-ray spectral flattening has been reported in FSRQs (at relati
Externí odkaz:
http://arxiv.org/abs/2104.11094
Autor:
Wang, Ailing, An, Tao, Jaiswal, Sumit, Mohan, Prashanth, Wang, Yuchan, Baan, Willem A., Zhang, Yingkang, Yang, Xiaolong
Mrk~231 is the closest radio-quiet quasar known and one of the most luminous infrared galaxies in the local Universe. It is characterised by the co-existence of a radio jet and powerful multi-phase multi-scale outflows, making it an ideal laboratory
Externí odkaz:
http://arxiv.org/abs/2102.12644
Autor:
Yang, Jun, Paragi, Zsolt, Nardini, Emanuele, Baan, Willem A., Fan, Lulu, Mohan, Prashanth, Varenius, Eskil, An, Tao
When a black hole accretes close to the Eddington limit, the astrophysical jet is often accompanied by radiatively driven, wide-aperture and mildly relativistic winds. Powerful winds can produce significant non-thermal radio emission via shocks. Amon
Externí odkaz:
http://arxiv.org/abs/2008.05194
Recently the IceCube collaboration detected very high energy (VHE) neutrinos and associated them with the blazar \txs{}, raising a possible association of VHE neutrinos with this and other individual blazars. Very Long Baseline Interferometry (VLBI)
Externí odkaz:
http://arxiv.org/abs/2005.00300