A dataset provided by the European Space Agency

Name 072183
Title A New Class of X-ray Transients? Highly Luminous XMM Transients
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721830301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721830601
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721830701

DOI 10.5270/esa-970668r
Author Dr Richard Mushotzky
Description Finding X-ray counterparts to future LIGO-Virgo events requires an understanding of the transient sky at low redshift. We have identified 7 nearby (D < 300 Mpc) transients in the XMM-Newton Slew Survey Catalog via a systematic comparison with the ROSAT All Sky Survey. These sources have unusual properties and so are difficult to characterize. They are highly luminous (>1e42 erg-s), extremely variable, associated with galaxies within 300 Mpc, and lack optical AGN signatures. We propose to observe these seven targets with XMM-Newton in an attempt to identify their nature. The sources could prove to be tidal disruption events, GRB afterglows, very high energy ULXs, or some new class. This is the first study of X-ray transients within the LIGO-Virgo horizon.
Publication The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Multiwavelength Study of an X-Ray Tidal Disruption Event Candidate in NGC 5092 . Li, Dongyue, Saxton, R. D., et all. . ApJ . 891-121 . 2020 . 2020ApJ...891..121L ,
Infrared colours and spectral energy distributions of hard X-ray selected obscured and Compton-thick active galactic nuclei . Kilerci Eser, Ece, Goto, T., et all. . MNRAS . 494-5793 . 2020 . 2020MNRAS.494.5793K ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-09-10T22:55:12Z/2013-12-21T08:48:24Z
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 2015-01-20T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2015-01-20T23:00:00Z, 072183, 17.56_20190403_1200. https://doi.org/10.5270/esa-970668r