A dataset provided by the European Space Agency

Name 011245
Title EPIC Observations of Anomalous X-ray Pulsars
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112450301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112450401
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112450501
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112450601

DOI 10.5270/esa-xw5vxry
Author Dr Martin Turner
Description GT- HD49798 is a sdO6 star in a spectroscopic binary with orbital period 1.55 days. In X-rays it has a very soft spectrum and a periodicity at 13 s, indicating that the companion is a magnetized compact object. The proposed observation will allow to measure the period evolution (and thus distinguish between a ns and a wd) and to confirm the NIV absorption edge suggested by ROSAT results. NOTE FOR THE PLANNING: 3 pointings of 5 ksec each are required, in order to cover different phases of the 1.55 day orbit. The choice in the time constraints form (repeat every 11 hours) is just a possibility: such a tight constraint on the spacing is not required, as far as different phases are sampled.
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Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras . Mateos, S., Saxton, R. D., et all. . A&A . 496-879 . 2009 . 2009A&A...496..879M ,
The XMM Cluster Survey: optical analysis methodology and the first data release . Mehrtens, Nicola, Romer, A. Kathy, et all. . MNRAS . 423-1024 . 2012 . 2012MNRAS.423.1024M ,
X-Ray and Optical Observations of the Unique Binary System HD 49798-RX J0648.0-4418 . Mereghetti, S., La Palombara, N., et all. . ApJ . 737-51 . 2011 . 2011ApJ...737...51M ,
An All-Sky Atlas of Radio-X-ray Associations . Flesch, E., . PASA . 27-283 . 2010 . 2010PASA...27..283F ,
The XMM Cluster Survey: X-ray analysis methodology . Lloyd-Davies, E. J., Romer, A. Kathy, et all. . MNRAS . 418-14 . 2011 . 2011MNRAS.418...14L ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog . Lin, Dacheng, Webb, Natalie A., . ApJ . 756-27 . 2012 . 2012ApJ...756...27L ,
An XMM-Newton Survey of the Soft X-Ray Background. II. An All...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-05-03T11:01:25Z/2002-09-17T17:17:52Z
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 2004-08-06T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-08-06T00:00:00Z, 011245, 17.56_20190403_1200. https://doi.org/10.5270/esa-xw5vxry