Zobrazeno 1 - 10
of 2 224
pro vyhledávání: '"P. Giommi"'
Autor:
N. Sahakyan, D. Bégué, A. Casotto, H. Dereli-Bégué, P. Giommi, S. Gasparyan, V. Vardanyan, M. Khachatryan, A. Pe’er
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 70 (2024)
In the context of modeling spectral energy distributions (SEDs) for blazars, we extend the method that uses a convolutional neural network (CNN) to include external inverse Compton processes. The model assumes that relativistic electrons within the e
Externí odkaz:
https://doaj.org/article/dbe700151003463a8595dbc65e4783df
Autor:
D. Bégué, N. Sahakyan, H. Dereli-Bégué, P. Giommi, S. Gasparyan, M. Khachatryan, A. Casotto, A. Pe’er
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 71 (2024)
Modeling the multiwavelength spectral energy distributions (SEDs) of blazars provides key insights into the underlying physical processes responsible for the emission. While SED modeling with self-consistent models is computationally demanding, it is
Externí odkaz:
https://doaj.org/article/5718b172c87742c3bd9dd2b109facb48
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 48 (2024)
Blazars are the brightest and most abundant persistent sources in the extragalactic γ -ray sky. Due to their significance, they are often observed across various energy bands, where the data of which can be used to explore potential correlations bet
Externí odkaz:
https://doaj.org/article/51afae6ff8c543bfb6ec475e93b64711
Autor:
Sahakyan, N., Vardanyan, V., Giommi, P., Bégué, D., Israyelyan, D., Harutyunyan, G., Manvelyan, M., Khachatryan, M., Dereli-Bégué, H., Gasparyan, S.
The Markarian Multiwavelength Data Center (MMDC) is a web-based tool designed for accessing and retrieving multiwavelength and multimessenger data from blazar observations. MMDC facilitates the construction and interactive visualization of time-resol
Externí odkaz:
http://arxiv.org/abs/2410.01207
Autor:
Rodrigues, Xavier, Karl, Martina, Padovani, Paolo, Giommi, Paolo, Paiano, Simona, Falomo, Renato, Petropoulou, Maria, Oikonomou, Foteini
A correlation has been reported between the arrival directions of high-energy IceCube events and gamma-ray blazars classified as intermediate- and high-synchrotron-peaked BL Lacs. Subsequent studies have investigated the optical properties of these s
Externí odkaz:
http://arxiv.org/abs/2406.06667
Autor:
Sahakyan, N., Bégué, D., Casotto, A., Dereli-Bégué, H., Giommi, P., Gasparyan, S., Vardanyan, V., Khachatryan, M., Pe'er, A.
In the context of modeling spectral energy distributions (SEDs) for blazars, we extend the method that uses a convolutional neural network (CNN) to include external inverse Compton processes. The model assumes that relativistic electrons within the e
Externí odkaz:
http://arxiv.org/abs/2402.07495
Blazars are the brightest and most abundant persistent sources in the extragalactic gamma-ray sky. Due to their significance, they are often observed across various energy bands to explore potential correlations between emissions at different energie
Externí odkaz:
http://arxiv.org/abs/2401.10548
Autor:
Tripathi, Dhurba, Giommi, Paolo, Di Giovanni, Adriano, Almansoori, Rawdha R., Hamly, Nouf Al, Arneodo, Francesco, Macciò, Andrea V., Puccetti, Goffredo, de Almeida, Ulisses Barres, Brandt, Carlos, Di Pippo, Simonetta, Doro, Michele, Israyelyan, David, Pollock, Andrew M. T., Sahakyan, Narek
Firmamento (https://firmamento.hosting.nyu.edu) is a new-concept web-based and mobile-friendly data analysis tool dedicated to multi-frequency/multi-messenger emitters, as exemplified by blazars. Although initially intended to support a citizen resea
Externí odkaz:
http://arxiv.org/abs/2311.15102
Autor:
Bégué, Damien, Sahakyan, Narek, Bégué, Hüsne Dereli, Giommi, Paolo, Gasparyan, Sargis, Khachatryan, Mher, Casotto, Andrea, Pe'er, Asaf
Modeling the multiwavelength spectral energy distributions (SEDs) of blazars provides key insights into the underlying physical processes responsible for the emission. While SED modeling with self-consistent models is computationally demanding, it is
Externí odkaz:
http://arxiv.org/abs/2311.02979
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 526, Issue 1, November 2023, Pages 661-681
We present hybrid spectral energy distributions, combining photon and neutrino fluxes, for a sample of blazars, which are candidate IceCube neutrino sources. We furthermore check for differences in our sources' variability in the near-infrared, optic
Externí odkaz:
http://arxiv.org/abs/2309.03119