A dataset provided by the European Space Agency

Name 072481
Title X-ray Study of Ultraluminous X-ray Sources with XMM-Newton and NuSTAR


DOI https://doi.org/10.5270/esa-8k4ssoz
Author Prof Fiona Harrison
Description We propose to continue the simultaneous XMM+NuSTAR observing program for ultraluminous X-ray sources (ULXs) initiated in the previous observing cycle, with observations of two further sources of interest, Holmberg II X-1 and NGC5907 ULX. The bright X-ray emission from ULX binaries greatly exceeds the Eddington luminosity for a spherically accreting stellar-mass compact object, and understanding why this is so is one of the biggest mysteries in high energy astrophysics. Combined, XMM-Newton and NuSTAR will obtain high-quality spectra and timing measurements from 0.3 30 keV, providing powerful probes for understanding the accretion modes and nature of the central BHs.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-09-09T06:16:17Z/2013-11-13T01:42:52Z
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 2014-11-26T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-11-26T00:00:00Z, 072481, 17.56_20190403_1200. https://doi.org/10.5270/esa-8k4ssoz