A dataset provided by the European Space Agency

Name 055460
Title Long-term monitoring of SGR 1806-20: the start of a new cycle?
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0554600301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0554600401
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0554600501

DOI 10.5270/esa-7byn3br
Author Dr Sandro Mereghetti
Description In late 2003 SGR1806-20 gradually entered an active phase displaying an increase in both the burst rate and persistent emission, and culminating on December 2004 with the most powerful giant flare ever observed from a soft gamma-ray repeater. The event was followed by a gradual recovery of a flux level close to the pre-flare values. The latest XMM-Newton observation (September 2006) showed that the decreasing luminosity trend has been interrupted, possibly in connection with the recent onset of a new period of intense bursting activity. Presently it is not clear if the re-brightening is an oscillation around an equilibrium luminosity level, or the start of a new cycle of increasing activity.
Publication The first X-ray survey of Galactic luminous blue variables . Naze, Y., Rauw, G., . A&A . 538-47 . 2012 . 2012A&A...538A..47N ,
An All-Sky Atlas of Radio-X-ray Associations . Flesch, E., . PASA . 27-283 . 2010 . 2010PASA...27..283F ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog . Lin, Dacheng, Webb, Natalie A., . ApJ . 756-27 . 2012 . 2012ApJ...756...27L ,
A systematic cross-search for radio-infrared counterparts of XMM- Newton sources . Combi, J. A., Albacete Colombo, J. F., et all. . Ap&SS . 331-53 . 2011 . 2011Ap&SS.331...53C ,
Automatic Classification of Time-variable X-Ray Sources . Lo, Kitty K., Farrell, Sean, et all. . ApJ . 786-20 . 2014 . 2014ApJ...786...20L ,
The diversity of quasars unified by accretion and orientation . Shen, Yue, Ho, Luis C., . Natur . 513-210 . 2014 . 2014Natur.513..210S ,
Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
The Short Bursts in SGR-1806 20, 1E 1048-5937, and SGR 0501+4516 . Qu, Zhijie, Li, Zhaosheng, et all. . PASP . 127-211 . 2015 . ...,
XMM-Newton Observations of SGR 1806-20 Over Seven Years Following the 2004 Giant Flare . Younes, G., Kouveliotou, C., . ApJ . 809-165 . 2015 . 2015ApJ...809..165Y ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Systematic study of magnetar outbursts . Coti Zelati, Francesco, Rea, Nanda, et all. . MNRAS . 474-961 . 2018 . 2018MNRAS.474..961C ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-09-05T02:09:15Z/2009-03-04T02:54:15Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2009-03-26T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-03-26T00:00:00Z, 055460, 17.56_20190403_1200. https://doi.org/10.5270/esa-7byn3br