Search results for "Emissions-line"

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Long-term pulse profile study of the Be/X-ray pulsar SAX J2103.5+4545

2007

Aims. We present the first long-term pulse profile study of the X-ray pulsar SAX J2103.5+4545. Our main goal is to study the pulse shape correlation either with luminosity, time or energy. Methods. This Be/X-ray binary system was observed from 1999 to 2004 by RXTE PCA, and by INTEGRAL from 2002 to 2005, during the Performance and Verification (PV) phase and the Galactic Plane Scan survey (GPS). X-ray pulse profiles were obtained in different energy ranges. The long-term spectral variability of this source is studied. The long-term flux, frequency and spin-up rate histories are computed. A new set of orbital parameters are also determined. Results. The pulse shape is complex and highly varia…

Phase (waves)FluxFOS: Physical sciencesIndividualAstrophysicsUNESCO::ASTRONOMÍA Y ASTROFÍSICAAstrophysicsLuminosityPulsarX-raysPulsarsPhysicsOrbital elementsBinariesSAX J2103.5+4545Astrophysics (astro-ph)Astronomy and AstrophysicsBeGalactic planeStars:ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia [UNESCO]Pulse (physics)X-rays ; Binaries ; Stars ; Pulsars ; Individual ; SAX J2103.5+4545 ; Close ; Emissions-line ; BeSpace and Planetary ScienceEmissions-lineUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogoniaClose:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]X-ray pulsar
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