XMM-Newton observations of the isolated neutron star 1RXS J214303.7+065419/RBS1774

Details XMM-Newton observations of the isolated neutron star 1RXS J214303.7+065419/RBS1774 XMM-Newton observations of the isolated neutron star 1RXS J214303.7+065419/RBS1774

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ap%26ss.308..161c&link_type=abstract

Astrophysics and Space Science, Volume 308, Issue 1-4, pp. 161-166

Astronomy and Astrophysics

Astrophysics

5

Scientific paper

We report XMM-Newton observations of the isolated neutron star RBS1774 and confirm its membership as an XDINS. The X-ray spectrum is best fit with an absorbed blackbody with temperature kT=101 eV and absorption edge at 0.7 keV. No power law component is required. An absorption feature in the RGS data at 0.4 keV is not evident in the EPIC data, but it is not possible to resolve this inconsistency. The star is not seen in the UV OM data to m AB ˜21. There is a sinusoidal variation in the X-ray flux at a period of 9.437 s with an amplitude of 4%. The age as determined from cooling and magnetic field decay arguments is 105 106 yr for a neutron star mass of 1.35 1.5 M&sun;.

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