593 citations · 6.9k across the 112 of their papers we have counts for
112 papers
NVSS J151002+570243: accretion and spin of a z > 4 Fermi detected blazar
Gabriele Alzati, Tullia Sbarrato, Gabriele Ghisellini
Active galactic nuclei formation and evolution is currently an open puzzle. Their enormous mass is not explainable via sub-Eddington accretion and the frequent presence of relativi…
Revealing faint compact radio jets at redshifts above 5 with very long baseline interferometry
Máté Krezinger, Giovanni Baldini, Marcello Giroletti +6
Over the past two decades, our knowledge of the high-redshift (z > 5) radio quasars has expanded, thanks to dedicated high-resolution very long baseline interferometry (VLBI) obser…
The best place and time to live in the Milky Way
R. Spinelli, G. Ghirlanda, F. Haardt +2
Counted among the most powerful cosmic events, supernovae (SNe) and gamma-ray bursts (GRBs) can be highly disruptive for life: Their radiation can be harmful for biota or induce ex…
X-ray absorption towards high-redshift sources: probing the intergalactic medium with blazars
R. Arcodia, S. Campana, R. Salvaterra +1
The role played by the intergalactic medium (IGM) in the X-ray absorption towards high-redshift sources has recently drawn more attention in spectral analysis studies. Here, we stu…
Consistency with synchrotron emission in the bright GRB 160625B observed by Fermi
M. E. Ravasio, G. Oganesyan, G. Ghirlanda +4
We present time resolved spectral analysis of prompt emission from GRB 160625B, one of the brightest bursts ever detected by Fermi in its nine years of operations. Standard empiric…
Bulk Comptonization: new hints from the luminous blazar 4C+25.05
E. S. Kammoun, E. Nardini, G. Risaliti +3
Blazars are often characterized by a spectral break at soft X-rays, whose origin is still debated. While most sources show a flattening, some exhibit a blackbody-like soft excess w…