2016ApJ...829..125F

Query : 2016ApJ...829..125F

2016ApJ...829..125F - Astrophys. J., 829, 125-125 (2016/October-1)

The XMM-Newton1 and INTEGRAL2 observations of the supergiant fast X-ray transient IGR J16328-4726.

FIOCCHI M., BAZZANO A., NATALUCCI L., UBERTINI P., SGUERA V., BIRD A.J., BOON C.M., PERSI P. and PIRO L.

Abstract (from CDS):

The accretion mechanism producing the short flares observed from the Supergiant Fast X-ray Transients (SFXT) is still highly debated and forms a major part in our attempts to place these X-ray binaries in the wider context of the High Mass X-ray Binaries. We report on a 216 ks INTEGRAL observation of the SFXT IGR J16328-4726 (2014 August 24-27) simultaneous with two fixed-time observations with XMM-Newton (33 and 20 ks) performed around the putative periastron passage, in order to investigate the accretion regime and the wind properties during this orbital phase. During these observations, the source has shown luminosity variations, from ∼4×{10}^{34} to ∼{10}^{{36} erg {s}}{-1}, linked to spectral properties changes. The soft X-ray continuum is well modeled by a power law with a photon index varying from ∼1.2 up to ∼1.7 and with high values of the column density in the range of ∼2–4×{10}^{23} cm{-2}. We report on the presence of iron lines at ∼6.8-7.1 keV, suggesting that the X-ray flux is produced by the accretion of matter from the companion wind characterized by density and temperature inhomogeneities.

Journal keyword(s): binaries: general - X-rays: individual: IGR J16328-4726 - X-rays: individual: IGR J16328-4726

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	IGR J16328-4726	HXB	16 32 37.850	-47 23 41.45						O8Iafpe	40	0

Query : 2016ApJ...829..125F

Basic data :

IGR J16328-4726 -- High Mass X-ray Binary

HXB (2013ApJS), gam (2007ApJS,IGR), X (PBC,SWIFT), MIR (SSTGLMC,WISEA), NIR ([PFT2015])

16 32 37.850 -47 23 41.45 (Near-IR) [ ] C 2015AJ....150...21P

16 28 56.973 -47 17 20.96 [ ]

336.749272 +00.422204 [ ]

O8Iafpe C 2013A&A...560A.108C

J 15.11 [0.02] C 2015AJ....150...21P

H 12.66 [0.02] C 2015AJ....150...21P

K 11.41 [0.02] C 2015AJ....150...21P

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`IGR J16328-4726`	`SSTGLMC G336.7492+00.4223`	`TIC 228028479`	`[PFT2015] A`
`PBC J1632.7-4727`	`SWIFT J1633.8-4724B`	`WISEA J163237.83-472341.4`

References (40 between 1850 and 2026) (Total 40)
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SSTGLMC G336.7492+00.4223 WISEA J163237.83-472341.4

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