Swift monitoring of the massive X-ray binary SAX J0635.2+0533

@article{Palombara2017SwiftMO,
  title={Swift monitoring of the massive X-ray binary SAX J0635.2+0533},
  author={Nicola La Palombara and Sandro Mereghetti},
  journal={Astronomy and Astrophysics},
  year={2017},
  volume={602}
}
SAXJ0635.2 + 0533 is a binary pulsar with a very short pulsation period ( P = 33 . 8 ms) and a high long-term spin down ( ˙ P > 3 . 8 × 10 − 13 s s − 1 ), which suggests a rotation-powered (instead of an accretion-powered) nature for this source. While it was discovered at a flux level around 10 − 11 erg cm − 2 s − 1 , between 2003 and 2004, this source was detected with XMM–Newton at an average flux of about 10 − 13 erg cm − 2 s − 1 ; moreover, the flux varied by over one order of magnitude on… 

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References

SHOWING 1-10 OF 22 REFERENCES
X-Ray Timing of the 34 Millisecond Binary Pulsar SAX J0635+0533
Modulations detected in the observed spin period of the 34 ms X-ray pulsar SAX J0635+0533 show that the pulsar is in a binary system with a period of 11.2 ± 0.5 days, a projected orbital semimajor
XMM-Newton observations of PSR B1957+20
We report on XMM-Newton observations of the “Black Widow pulsar”, PSR B1957+20. The pulsar's X-ray emission is non-thermal and best modeled with a single powerlaw spectrum of photon index
X-ray observations of PSR B1259−63 near the 2007 periastron passage
PSR B1259‐63 is a 48 ms radio pulsar in a highly eccentric 3.4 year orbit with a Be star SS 2883. Unpulsedγ-ray, X-ray and radio emission components are observed from the binary system. It is likely
XMM-Newton observation of the persistent Be/NS X-ray binary pulsar RX J0440.9+4431
Many X-ray accreting pulsars have a soft excess below 10 keV. This feature was also detected in faint sources and at low luminosity levels, suggesting that it is an ubiquitous phenomenon. For the
Discovery of 69 ms periodic X-ray pulsations in A0538 — 66
Both the recurrent X-ray transient A0538–66 and its optical counterpart undergo outbursts at intervals which are multiples of 16.6 days1–3. The times of outbursts are subject to appreciable jitter
A low luminosity state in the massive X-ray binary SAX J0635+0533
We report on the XMM‐Newton observations of SAX J0635+0533, the fastest pulsar in a Be/NS binary system (Pspin = 33.8 ms). The precise localization provided by these observations confirms the
Detection of 33.8 Millisecond X-Ray Pulsations in SAX J0635+0533
TLDR
The BeppoSAX observation of SAX J0635+0533 is revisited and a 33.8 ms pulsation is discovered, interpreted as the spin period of a neutron star in a binary system with a Be companion.
XMM-Newton observations of PSR B1259–63 near the 2004 periastron passage
We present here the results of new XMM-Newton observations of the PSR B1259–63 system during the beginning of 2004, as the pulsar approaches the disc of the Be star. We combine these results with
Evidence of coupling between the thermal and nonthermal emission in the gamma-ray binary LS I +61 303
The gamma-ray binary LS I +61 303 is composed of a Be star and a compact companion orbiting in an eccentric orbit. Variable flux modulated with the orbital period of ~26.5 d has been detected from
HIGH-ENERGY OBSERVATIONS OF PSR B1259−63/LS 2883 THROUGH THE 2014 PERIASTRON PASSAGE: CONNECTING X-RAYS TO THE GeV FLARE
The binary system PSR B1259−63/LS 2883 is well sampled in radio, X-rays, and TeV γ-rays, and shows orbital-phase-dependent variability in these frequencies. The first detection of GeV γ-rays from the
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