Evidence for a resonant cyclotron line in IGR J16493−4348 from the Swift-BAT hard X-ray survey
@article{Adai2011EvidenceFA, title={Evidence for a resonant cyclotron line in IGR J16493−4348 from the Swift-BAT hard X-ray survey}, author={Adai and G Cusumano and V. La Parola and A. Segreto and Tiziana di Salvo and R. Iaria and Natale R. Robba}, journal={Astronomy and Astrophysics}, year={2011}, volume={532}, pages={73-79} }
Context. Resonant absorption cyclotron features are a key diagnostic tool to directly measure the strength of the magnetic field of accreting neutron stars. However, typical values of cyclotron features lie in the high-energy part of the spectrum between 20 keV and 50 keV, where detection is often damped by the low quality statistics of results derived from single pointed observations. Aims. We show that long-term monitoring campaign performed with Swift-BAT of persistently, but faint…
12 Citations
NuSTAR Detection Of A Cyclotron Line In The Supergiant Fast X-ray Transient IGR J17544 2619
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We analysed 13 years of the Neil Gehrels Swift Observatory survey data collected on the High Mass X-ray Binary IGR J18214-1318. Performing the timing analysis we detected a periodic signal of 5.42 d.…
The Orbital Parameters of the Eclipsing High-mass X-Ray Binary Pulsar IGR J16493–4348 from Pulsar Timing
- PhysicsThe Astrophysical Journal
- 2019
IGR J16493-4348 is an eclipsing supergiant high-mass X-ray binary (sgHMXB), where accretion onto the compact object occurs via the radially outflowing stellar wind of its early B-type companion. We…
A Study of the 20 day Superorbital Modulation in the High-mass X-Ray Binary IGR J16493-4348
- PhysicsThe Astrophysical Journal
- 2019
We report on Nuclear Spectroscopic Telescope Array (NuSTAR), Neil Gehrels Swift Observatory (Swift) X-ray Telescope (XRT) and Swift Burst Alert Telescope (BAT) observations of IGR J16493-4348, a…
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- 2013
We analyze the 3-80 keV spectrum of X-ray pulsar 4U 0115+63 taken by Rossi X-ray Timing Explorer(RXTE) on April 22nd, 2008. Two absorption features at ~13.5 keV and ~20.5 keV are detected by using…
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High-mass X-ray binaries are fundamental in the study of stellar evolution, nucleosynthesis, structure and evolution of galaxies and accretion processes. Hard X-rays observations by INTEGRAL and…
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- PhysicsResearch in Astronomy and Astrophysics
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We have considered the existence of neutron star magnetic field given by the cyclotron lines. We collected the data of 9 sources of high-mass X-ray binaries with supergiant companions as a case of…
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