A dataset provided by the European Space Agency

Name 076477
Title Changes in the X-ray irradiation of an ultraluminous X-ray source


DOI https://doi.org/10.5270/esa-kvih93t
Author Dr Fabien Grise
Description Optical emission observed from ultraluminous X-ray sources (ULXs) comes from the irradiated disk and the donor star. Disentangling the two components has always been an unsolved problem. We have discovered that the ULX NGC 1313 X-2 switches between two distinct X-ray spectral-luminosity states on long timescales, virgul 6--10 weeks. This makes it an ideal laboratory to study the effects of variable X-ray irradiation on the disk and donor star. We propose a multiband study of NGC 1313 X-2 from near-IR to X-rays, with XMM, HST and Swift. We will measure the contribution of X-ray reprocessing to the optical emission and determine whether irradiation correlates with disk winds.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2015-12-05T04:12:48Z/2016-03-24T07:21:00Z
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 2017-04-06T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2017-04-06T22:00:00Z, 076477, 17.56_20190403_1200. https://doi.org/10.5270/esa-kvih93t