XMM-Newton Observation of the 5.25 Millisecond Transient Pulsar XTE J1807-294 in Outburst | Zendy

S. Campana | Zendy; M. E. Ravasio | Zendy; G. L. Israel | Zendy; V. Mangano | Zendy; T. Belloni | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

XMM-Newton Observation of the 5.25 Millisecond Transient Pulsar XTE J1807-294 in Outburst

Author(s) -

S. Campana,

M. E. Ravasio,

G. L. Israel,

V. Mangano,

T. Belloni

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/378258

Subject(s) - physics , neutron star , astrophysics , millisecond pulsar , pulsar , millisecond , orbital period , luminosity , light curve , astronomy , transient (computer programming) , stars , galaxy , computer science , operating system

We report on the results obtained for the millisecond transient X-ray pulsarXTE J1807-294 in a 40 min orbital period system, based on an XMM-Newton ToOobservation carried out during March 2003. The source was found at a luminositylevel of about 2x10^36 erg/s in the 0.5-10 keV range (assuming a distance of 8kpc). We confirm the presence of the 5.25 ms pulsations (after accounting forthe orbital modulation) and find a pulsed fraction of 5.8% in the 0.3-10 keVband. The pulse shape in nearly sinusoidal. The spectral continuum of thesource is well fitted by an absorbed Comptonization model plus a softcomponent. No emission or absorption lines have been detected in the 0.5-10 keVrange with upper limits of 10-40 eV. The reported analysis represent the firstdetailed study of this source, the fourth belonging to the ultra-compact binarysystem class hosting an accreting neutron star.Comment: Accepted for publication in ApJ

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research