Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Pellizza, L. J."'
Publikováno v:
Volume 525, Issue 2, October 2023, Pages 1726 1730
NGC 2071 is a star-forming region that overlaps with three $\gamma$-ray sources detected by the Fermi Space Telescope. We propose that strong flare activity in T Tauri stars could produce $\gamma$-ray emission in a way that makes them a counterpart t
Externí odkaz:
http://arxiv.org/abs/2308.12142
Publikováno v:
A&A 665, A145 (2022)
Supernova remnants are believed to be the main sites where Galactic cosmic rays originate. This scenario, however, fails to explain some of the features observed in the cosmic-ray spectrum. Microquasars have been proposed as additional candidates, be
Externí odkaz:
http://arxiv.org/abs/2207.08633
Publikováno v:
A&A 657, A49 (2022)
Star-forming galaxies (SFGs) emit non-thermal radiation from radio to gamma-rays. We aim to investigate the main mechanisms of global CR transport and cooling in SFGs. The way they contribute in shaping the relations between non-thermal luminosities
Externí odkaz:
http://arxiv.org/abs/2107.00823
Publikováno v:
A&A 650, A136 (2021)
The origin of Galactic cosmic rays remains a matter of debate, but supernova remnants are commonly considered to be the main place where high-energy cosmic rays are accelerated. Nevertheless, current models predict cosmic-ray spectra that do not matc
Externí odkaz:
http://arxiv.org/abs/2104.11975
Autor:
Kornecki, P., Pellizza, L. J., del Palacio, S., Müller, A. L., Albacete-Colombo, J. F., Romero, G. E.
Publikováno v:
A&A 641, A147 (2020)
Context. Near a dozen star-forming galaxies have been detected in gamma-rays by the Fermi observatory in the last decade. A remarkable property of this sample is the quasi-linear relation between the gamma-ray luminosity and the star formation rate,
Externí odkaz:
http://arxiv.org/abs/2007.07430
Autor:
Pepe, C., Pellizza, L. J.
During the last decades, much effort has been devoted to explain the discrepancy between the amount of intracluster medium (ICM) estimated from stellar evolution theories and that emerging from observations in globular clusters (GCs). One possible sc
Externí odkaz:
http://arxiv.org/abs/1605.03536
Publikováno v:
A&A 579, A44 (2015)
High-mass X-ray binaries (HMXBs) might have contributed a non-negligible fraction of the energy feedback to the interstellar and intergalactic media at high redshift, becoming important sources for the heating and ionization history of the Universe.
Externí odkaz:
http://arxiv.org/abs/1505.05483
We explored the role of X-ray binaries composed by a black hole and a massive stellar companion (BHXs) as sources of kinetic feedback by using hydrodynamical cosmological simulations. Following previous results, our BHX model selects low metal-poor s
Externí odkaz:
http://arxiv.org/abs/1502.00017
Publikováno v:
BAAA, 56, 29 (2013)
We study the nature of long gamma ray burst (LGRB) progenitors using cosmological simulations of structure formation and galactic evolution. LGRBs are potentially excellent tracers of stellar evolution in the early universe. We developed a Monte Carl
Externí odkaz:
http://arxiv.org/abs/1407.0260
Recent theoretical works claim that high-mass X-ray binaries (HMXBs) could have been important sources of energy feedback into the interstellar and intergalactic media, playing a major role in the reionization epoch. A metallicity dependence of the p
Externí odkaz:
http://arxiv.org/abs/1403.2329