Zobrazeno 1 - 10
of 165
pro vyhledávání: '"R, Barniol"'
Autor:
Kamenetskaia, B. Betancourt, Fraija, N., Dainotti, M., Gálvan-Gámez, A., Duran, R. Barniol, Dichiara, S.
We investigate the evolution of the afterglow produced by the deceleration of the non-relativistic material due to its surroundings. The ejecta mass is launched into the circumstellar medium with equivalent kinetic energy expressed as a power-law vel
Externí odkaz:
http://arxiv.org/abs/2108.10811
Autor:
Kamenetskaia, B. Betancourt, Fraija, N., Dainotti, M., Gálvan-Gámez, A., Duran, R. Barniol, Dichiara, S.
In light of the most recent observations of late afterglows produced by the merger of compact objects or by the core-collapse of massive dying stars, we research the evolution of the afterglow produced by an off-axis top-hat jet and its interaction w
Externí odkaz:
http://arxiv.org/abs/2108.10797
Autor:
Stroh, M. C., Terreran, G., Coppejans, D. L., Bright, J. S., Margutti, R., Bietenholz, M. F., De Colle, F., DeMarchi, L., Duran, R. Barniol, Milisavljevic, D., Murase, K., Paterson, K., Williams, W. L.
Publikováno v:
ApJL 923 (2021) L24
We present a population of 19 radio-luminous supernovae (SNe) with emission reaching $L_{\nu}{\sim}10^{26}-10^{29}\,\rm{erg\,s^{-1}Hz^{-1}}$ in the first epoch of the Very Large Array Sky Survey (VLASS) at $2-4$GHz. Our sample includes one long Gamma
Externí odkaz:
http://arxiv.org/abs/2106.09737
Autor:
Hajela, A., Margutti, R., Bright, J. S., Alexander, K. D., Metzger, B. D., Nedora, V., Kathirgamaraju, A., Margalit, B., Radice, D., Guidorzi, C., Berger, E., MacFadyen, A., Giannios, D., Chornock, R., Heywood, I., Sironi, L., Gottlieb, O., Coppejans, D., Laskar, T., Cendes, Y., Duran, R. Barniol, Eftekhari, T., Fong, W., McDowell, A., Nicholl, M., Xie, X., Zrake, J., Bernuzzi, S., Broekgaarden, F. S., Kilpatrick, C. D., Terreran, G., Villar, V. A., Blanchard, P. K., Gomez, S., Hosseinzadeh, G., Matthews, D. J., Rastinejad, J. C.
For the first $\sim3$ years after the binary neutron star merger event GW 170817 the radio and X-ray radiation has been dominated by emission from a structured relativistic off-axis jet propagating into a low-density medium with n $< 0.01\,\rm{cm^{-3
Externí odkaz:
http://arxiv.org/abs/2104.02070
Autor:
Fraija, N., Laskar, T., Dichiara, S., Beniamini, P., Duran, R. Barniol, Dainotti, M. G., Becerra, R. L.
The Fermi-LAT collaboration presented the second gamma-ray burst (GRB) catalog covering its first 10 years of operations. A significant fraction of afterglow-phase light curves in this catalog cannot be explained by the closure relations of the stand
Externí odkaz:
http://arxiv.org/abs/2006.10291
The central engine in long gamma-ray bursts (GRBs) is thought to be a compact object produced by the core collapse of massive stars, but its exact nature (black hole or millisecond magnetar) is still debatable. Although the central engine of GRB coll
Externí odkaz:
http://arxiv.org/abs/2006.07482
Autor:
Fraija, N., Kamenetskaia, B. Betancourt, Dainotti, M. G., Duran, R. Barniol, Gámez, A. Gálvan, Dichiara, S., S, Pedreira A. C. Caligula do E.
We present the afterglow light curves produced by the deceleration of the non-relativistic ejecta mass in a stratified circumstellar medium with a density profile $n(r)\propto r^{-k}$ with $k=0$, $1$, $1.5$, $2$ and $2.5$. Once the ejecta mass is lau
Externí odkaz:
http://arxiv.org/abs/2006.04049
Autor:
Fraija, N., Veres, P., Beniamini, P., Galvan-Gamez, A., Metzger, B. D., Duran, R. Barniol, Becerra, R. L.
Very-high-energy (VHE) emission is usually interpreted in the synchrotron-self Compton (SSC) scenario, and expected from the low-redshift and high-luminosity gamma-ray bursts (GRBs), as GRB 180720B and GRB 190114C. Recently, VHE emission was detected
Externí odkaz:
http://arxiv.org/abs/2003.11252
GRB 190114C, a long and luminous burst, was detected by several satellites and ground-based telescopes from radio wavelengths to GeV gamma-rays. In the GeV gamma-rays, the Fermi LAT detected 48 photons above 1 GeV during the first hundred seconds aft
Externí odkaz:
http://arxiv.org/abs/1907.06675
Autor:
Fraija, N., De Colle, F., Veres, P., Dichiara, S., Duran, R. Barniol, Pedreira, A. C. Caligula do E. S., Galvan-Gamez, A., Kamenetskaia, B. Betancourt
The detection of gravitational waves together with their electromagnetic counterpart, in the gamma-ray burst GRB 170817A, marked a new era of multi-messenger astronomy. Several theoretical models have been proposed to explain the atypical behavior of
Externí odkaz:
http://arxiv.org/abs/1906.00502