A dataset provided by the European Space Agency

Proposal ID 011107
Title High Resolution Spectroscopy of 4U1626-67
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111070101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111070201
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DOI https://doi.org/10.5270/esa-07dbsv9
Principal Investigator, PI Dr Albert Brinkman
Abstract GT- 4U1626-67 is a 7.7 pulsar with unusual properties. The binary has anextremely small mass function, which may imply that the mass donating star hasextremely low mass, and may be just the burnt-out core of a more massiveprogenitor. This fact may be related to the unusually strong Ne Ly alphaemission feature seen in the ASCA spectrum, possibly a sign of anomalousabundances. A high resolution RGS spectrum will address the abundance issue,as well as clarify the puzzling physical conditions in the line emitting gas.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-04-03T01:52:44Z/2001-08-24T07:47:46Z
Version 17.56_20190403_1200
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 2002-09-29T00:00:00Z
Keywords "line emitting gas", "resolution spectroscopy", "massive progenitor", "low mass", "abundance issue", "asca spectrum", "anomalous abundance", "resolution rgs spectrum", "physical conditions", "mass function"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Albert Brinkman, 2002, 'High Resolution Spectroscopy of 4U1626-67', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-07dbsv9