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A minor body falling onto a neutron star as an explanation for the unusual gamma-ray burst GRB 101225A
S. Campana, G. Lodato, P. D'Avanzo +17
The tidal disruption of a solar mass star around a supermassive black hole has been extensively studied analytically and numerically. In these events the star develops into an elon…
The Highly Energetic Expansion of SN2010bh Associated with GRB 100316D
Filomena Bufano, Elena Pian, Jesper Sollerman +50
We present the spectroscopic and photometric evolution of the nearby (z = 0.059) spectroscopically confirmed type Ic supernova, SN 2010bh, associated with the soft, long-duration g…
Electromagnetic priors for black hole spindown in searches for gravitational-waves from supernovae and long GRBs
Maurice H. P. M. van Putten, Massimo Della Valle, Amir Levinson
Some core-collapse supernovae appear to be hyper-energetic, and a subset of these are aspherical and associated with long GRBs. We use observations of electromagnetic emission from…
Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope
Xiaofeng Wang, Lifan Wang, Alexei V. Filippenko +93
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Sur…
No quantum gravity signature from the farthest quasars
Fabrizio Tamburini, Carmine Cuofano, Massimo Della Valle +1
Context: Strings and other alternative theories describing the quantum properties of space-time suggest that space-time could present a foamy structure and also that, in certain ca…
Five Supernova Survey Galaxies in the Southern Hemisphere: Supernova Ia Rates
A. A. Hakobyan, A. R. Petrosian, G. A. Mamon +9
Based on the database of 56 supernovae (SNe) events discovered in 3838 galaxies of the southern hemisphere, we compute the rate of SNe of different types along the Hubble sequence…
Nova M31N 2007-12b: Supersoft X-rays reveal an intermediate polar?
W. Pietsch, M. Henze, F. Haberl +4
For the He/N nova M31N 2007-12b, we analyzed XMM-Newton EPIC and Chandra HRC-I observations of our monitoring program performed at intervals of ten days and added results of a XMM-…
Five supernova survey galaxies in the southern hemisphere. II. The supernova rates
A. A. Hakobyan, A. R. Petrosian, G. A. Mamon +8
Based on the database compiled in the first article of this series, with 56 SN events discovered in 3838 galaxies of the southern hemisphere, we compute the rate of supernovae (SNe…
The Type IIP SN 2007od in UGC 12846: from a bright maximum to dust formation in the nebular phase
C. Inserra, M. Turatto, A. Pastorello +12
Ultraviolet (UV), optical and near infrared (NIR) observations of the type IIP supernova (SN) 2007od are presented, covering from the maximum light to the late phase, allowing to i…
Prospects for true calorimetry on Kerr black holes in core-collapse supernovae and mergers
Maurice H. P. M. van Putten, Nobuyuki Kanda, Hideyuki Tagoshi +3
Observational evidence for black hole spin down has been found in the normalized light curves of long GRBs in the BATSE catalogue. Over the duration of the burst, matter s…