A dataset provided by the European Space Agency

Name 040643
Title X-ray scanning a supergiant wind-accretor: eclipse egress in Vela X-1
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406430201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406430301

DOI https://doi.org/10.5270/esa-hnev4dv
Author Dr Peter Kretschmar
Description We propose to use one XMM-Newton orbit observing the eclipse egress and early post-eclipse phase of the VelavirgulX-1-HDvirgul77581 binary system. We plan to use EPIC-pn CCD spectra and pulse profiles together with RGS results for emission lines in order to study in unprecedented detail the emerging neutron star.s emission and measure the scale height of the supergiant.s extended atmosphere with high accuracy. Small time scale variations in the observed column density will track clumps in the lower stellar wind.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage 2006-05-25T10:30:29Z/2006-05-26T23:24:51Z
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 2009-02-08T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-02-08T00:00:00Z, 040643, 17.56_20190403_1200. https://doi.org/10.5270/esa-hnev4dv