Burst and Persistent Emission Properties During the Recent Active Episode of the Anomalous X-ray Pulsar 1e 1841–045
Year: 2011
Type: article
Abstract: The Swift /Burst Alert Telescope detected the first burst from 1E 1841−045 in 2010 May with intermittent burst activity recorded through at least 2011 July. Here we present Swift and Fermi /Gamma-ray Burst Monitor observations of this burst activity and search for correlated changes to the persistent X-ray emission of the source. The T 90 durations of the bursts range between 18 and 140 ms, comparable to other magnetar burst durations, while the energy released in each burst ranges between (0.8–25) × 10 38 erg, which is on the low side of soft gamma repeater bursts. We find that the bursting activity did not have a significant effect on the persistent flux level of the source. We argue that the mechanism leading to this sporadic burst activity in 1E 1841−045 might not involve large-scale restructuring (either crustal or magnetospheric) as seen in other magnetar sources.
Authors: Lin Lin, Chryssa Kouveliotou, Ersin Göğüş, Alexander J. van der Horst, Anna L. Watts, Matthew G. Baring, Yuki Kaneko, Ralph A. M. J. Wijers, Peter M. Woods, Scott Barthelmy, James Michael Burgess, Vandiver Chaplin, Neil Gehrels, Adam Goldstein, Jonathan Granot, Sylvain Guiriec, Julie Mcenery, Robert D. Preece, David Tierney, Michiel van der Klis, Andreas von Kienlin, Shuang Nan Zhang
Institutions: Chinese Academy of Sciences, National Astronomical Observatories, University of Alabama in Huntsville, Marshall Space Flight Center, Sabancı Üniversitesi, Universities Space Research Association, National Space Science and Technology Center, University of Amsterdam, Rice University, Corvid Technologies (United States), Goddard Space Flight Center, University of Hertfordshire, University College Dublin, Max Planck Institute for Extraterrestrial Physics, Institute of High Energy Physics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: Gama ışını patlamaları tayf özelliklerinin geniş dalgaboyu bandından incelenmesi, Amsterdam-ASTRON Radio Transient Facility And Analysis Centre: Probing the Extremes of Astrophysics, G6753182067, WE PROPOSE TO INVESTIGATE ACCELERATION PAIR CREATION AND HIGH-ENERGY EMISSION IN SOURCES THAT ARE P
OpenAlex ID: W2171027338