A dataset provided by the European Space Agency

Name 050007
Title Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies


DOI https://doi.org/10.5270/esa-wyug14j
Author Dr Hua Feng
Description Spectral state transitions are a key signature of black hole binaries (BHBs) and reflect the properties of the accretion flow and the central compact object. They have been systematically studied in Galactic BHBs and found to follow well-defined patterns. Ultraluminous X-ray sources (ULXs) are either intermediate-mass black holes or a special class of stellar-mass black holes, and should follow a set pattern of spectral evolution which is essentially associated with their natures. We propose 6 XMM observations of the Antennae galaxies (NGC 4038-4039) with an exposure of 20 ksec each and at intervals of weeks to months to see if state transitions of ULXs have the same, or different, pattern as Galactic BHBs.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-06-09T08:12:37Z/2007-12-27T04:30:33Z
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 2009-03-15T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-03-15T00:00:00Z, 050007, 17.56_20190403_1200. https://doi.org/10.5270/esa-wyug14j