Neutrino Trapping and Accretion Models for Gamma-Ray Bursts
- T. Di Matteo, R. Perna, R. Narayan
- Physics
- 15 July 2002
Many models of gamma-ray bursts (GRBs) invoke a central engine consisting of a black hole of a few solar masses accreting matter from a disk at a rate of a fraction to a few solar masses per second.…
Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models.
- D. Viganò, N. Rea, CNEA-Buenos Aires
- Physics
- 10 June 2013
Observations of magnetars and some of the high magnetic field pulsars have shown that their thermal luminosity is systematically higher than that of classical radiopulsars, thus confirming the idea…
A Study of Compact Object Mergers as Short Gamma-Ray Burst Progenitors
- K. Belczynski, R. Perna, T. Bulik, V. Kalogera, N. Ivanova, D. Lamb
- Physics
- 19 January 2006
We present a theoretical study of double compact objects as potential short/hard gamma-ray burst (GRB) progenitors. An updated population synthesis code, StarTrack, is used to calculate properties of…
MAGNETIC DRAG ON HOT JUPITER ATMOSPHERIC WINDS
- R. Perna, K. Menou, E. Rauscher
- Physics, Geology
- 19 March 2010
Hot Jupiters, with atmospheric temperatures T ≳ 1000 K, have residual thermal ionization levels sufficient for the interaction of ions with the planetary magnetic field to result in a sizable…
A NEW LOW MAGNETIC FIELD MAGNETAR: THE 2011 OUTBURST OF SWIFT J1822.3−1606
We report on the long-term X-ray monitoring with Swift, RXTE, Suzaku, Chandra, and XMM-Newton of the outburst of the newly discovered magnetar Swift J1822.3−1606 (SGR 1822−1606), from the first…
The first outburst of the new magnetar candidate SGR 0501+4516
We report here on the outburst onset and evolution of the new soft gamma-ray repeater SGR 0501+4516. We monitored the new SGR with XMM- Newton starting on 2008 August 23, 1 day after the source…
The Post-Burst Awakening of the Anomalous X-Ray Pulsar in Westerlund 1
- G. Israel, S. Campana, L. Stella
- Physics
- 27 March 2007
On 2006 September 21, an intense (~1039 erg s-1) and short (20 ms) burst was detected by Swift BAT at a position consistent with that of the candidate anomalous X-ray pulsar (AXP) CXOU…
GRB 090426: the farthest short gamma-ray burst?
- L. A. Antonelli, P. Avanzo, S. Vergani
- Physics
- 31 October 2009
Aims. With an observed and rest-frame duration of < 2sa nd<0.5 s, respectively, GRB 090426 could be classified as a short GRB. The prompt detection, both from space and ground-based telescopes, of a…
Off-axis Prompt X-Ray Transients from the Cocoon of Short Gamma-Ray Bursts
- D. Lazzati, D. López-Cámara, M. Cantiello, B. Morsony, R. Perna, Jared C. Workman
- Physics
- 5 September 2017
We present the results of numerical simulations of the prompt emission of short-duration gamma-ray bursts. We consider emission from the relativistic jet, the mildly relativistic cocoon, and the…
Radio Foregrounds for the 21 Centimeter Tomography of the Neutral Intergalactic Medium at High Redshifts
- T. Di Matteo, R. Perna, T. Abel, M. Rees
- Physics
- 16 September 2001
Absorption or emission against the cosmic microwave background (CMB) radiation may be observed in the redshifted 21 cm line if the spin temperature of the neutral intergalactic medium (IGM) prior to…
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