A dataset provided by the European Space Agency

Name 020388
Title ULTRA-LUMINOUS X-RAY SOURCES IN THE BARRED SPIRAL GALAXY NGC 1672
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203880101

DOI 10.5270/esa-j6mjsb0
Author Dr EDWARD COLBERT
Description The two very-luminous ULXs (L[X] greater than 2E39 erg-s) in NGC 1672 are positioned precisely at the ends of the nuclear bar. The most luminous ULXs are the most difficult to explain as .normal. X-ray binaries, and so are likely ULX candidates for IMBHs. We propose a detailed study, for the first time, of the X-ray spectra of these two fascinating ULXs, to study their spectral features and compare with ULX model predictions. A comparison with XMM-Newton X-ray spectra of ULXs in non-barred spirals will allow an important test to see if ULXs in spiral bars have unique spectral properties.
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Fe Kalpha line profile in AGNs: a...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-11-27T05:31:45Z/2004-11-27T19:23:38Z
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 2005-12-23T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-12-23T00:00:00Z, 020388, 17.56_20190403_1200. https://doi.org/10.5270/esa-j6mjsb0