Zobrazeno 1 - 10
of 377
pro vyhledávání: '"Greco Emanuele"'
Synchrotron radiation from relativistic electrons is usually invoked as the responsible for the nonthermal emission observed in Supernova Remnants (SNRs). Diffusive shock acceleration (DSA) is the most popular mechanism to explain the process of part
Externí odkaz:
http://arxiv.org/abs/2308.15956
Autor:
Dohi, Akira, Greco, Emanuele, Nagataki, Shigehiro, Ono, Masaomi, Miceli, Marco, Orlando, Salvatore, Olmi, Barbara
Observations collected with the Atacama Large Millimeter/submillimeter Array (ALMA) and analysis of broadband X-ray spectra have recently suggested the presence of a central compact object (CCO) in SN 1987A. However, no direct evidence of the CCO has
Externí odkaz:
http://arxiv.org/abs/2304.08418
Autor:
Giuffrida, Roberta, Miceli, Marco, Caprioli, Damiano, Decourchelle, Anne, Vink, Jacco, Orlando, Salvatore, Bocchino, Fabrizio, Greco, Emanuele, Peres, Giovanni
The origin of cosmic rays is a pivotal open issue of high-energy astrophysics. Supernova remnants are strong candidates to be the Galactic factory of cosmic rays, their blast waves being powerful particle accelerators. However, supernova remnants can
Externí odkaz:
http://arxiv.org/abs/2208.14491
Autor:
Greco, Emanuele, Miceli, Marco, Orlando, Salvatore, Olmi, Barbara, Bocchino, Fabrizio, Nagataki, Shigehiro, Sun, Lei, Vink, Jacco, Sapienza, Vincenzo, Ono, Masaomi, Dohi, Akira, Peres, Giovanni
Since the day of its explosion, supernova (SN) 1987A has been closely monitored to study its evolution and to detect its central compact relic. In fact, the formation of a neutron star is strongly supported by the detection of neutrinos from the SN.
Externí odkaz:
http://arxiv.org/abs/2204.06804
Autor:
Greco, Emanuele
This thesis is devoted to the analysis of X-ray observations of supernova remnants (SNRs), exploiting the diagnostic potential provided by X-ray spectroscopy and complementing it with the synthesis of X-ray observables from multi-dimensional hydrodyn
Externí odkaz:
http://arxiv.org/abs/2103.16950
X-ray emitting structures in the Vela SNR: ejecta anisotropies and progenitor stellar wind residuals
Autor:
Sapienza, Vincenzo, Miceli, Marco, Peres, Giovanni, Bocchino, Fabrizio, Orlando, Salvatore, Greco, Emanuele, Combi, Jorge Ariel, García, Federico, Sasaki, Manami
Publikováno v:
A&A 649, A56 (2021)
The Vela supernova remnant (SNR) shows several ejecta fragments protruding beyond the forward shock (shrapnel). Recent studies have revealed high Si abundance in two shrapnel (A and G), located in opposite directions with respect to the SNR center. T
Externí odkaz:
http://arxiv.org/abs/2103.09637
Autor:
Greco, Emanuele, Miceli, Marco, Orlando, Salvatore, Olmi, Barbara, Bocchino, Fabrizio, Nagataki, Shigehiro, Ono, Masaomi, Dohi, Akira, Peres, Giovanni
Since the day of its explosion, SN 1987A (SN87A) was closely monitored with the aim to study its evolution and to detect its central compact relic. The detection of neutrinos from the supernova strongly supports the formation of a neutron star (NS).
Externí odkaz:
http://arxiv.org/abs/2101.09029
Autor:
Tutone, Antonio, Orlando, Salvatore, Miceli, Marco, Ustamujic, Sabina, Ono, Masaomi, Nagataki, Shigehiro, Ferrand, Gilles, Greco, Emanuele, Peres, Giovanni, Warren, Donald C., Bocchino, Fabrizio
Publikováno v:
A&A 642, A67 (2020)
The aim of this work is to bridge the gap between CC SNe and their remnants by investigating how post-explosion anisotropies in the ejecta influence the structure and chemical properties of the remnant at later times. We performed three-dimensional m
Externí odkaz:
http://arxiv.org/abs/2009.01157
Autor:
Greco, Emanuele, Vink, Jacco, Miceli, Marco, Orlando, Salvatore, Domcek, Vladimir, Zhou, Ping, Bocchino, Fabrizio, Peres, Giovanni
Publikováno v:
A&A 638, A101 (2020)
Spectral analysis of X-ray emission from ejecta in supernova remnants (SNRs) is hampered by the low spectral resolution of CCD cameras, which creates a degeneracy between the best-fit values of abundances and emission measure. The combined contributi
Externí odkaz:
http://arxiv.org/abs/2004.12924
Autor:
Greco, Emanuele
Publikováno v:
Venezia Arti, Vol 32, Iss 32, Pp - (2023)
The essay examines a group of Alberto Viani’s sculptures, created around the mid-1940s, and characterized by a surrealist declination of the theme of ‘metamorphosis’. In this surrealist context, the theme of ‘metamorphosis’ is interpreted a
Externí odkaz:
https://doaj.org/article/8d09947cf11d4864bc456bae8d24c795
