2009MNRAS.399L.113C

Query : 2009MNRAS.399L.113C

2009MNRAS.399L.113C - Mon. Not. R. Astron. Soc., 399, L113-L117 (2009/October-2)

Discovery of the orbital period in the supergiant fast X-ray transient IGR J17544-2619.

CLARK D.J., HILL A.B., BIRD A.J., McBRIDE V.A., SCARINGI S. and DEAN A.J.

Abstract (from CDS):

The supergiant fast X-ray transient (SFXT) system IGR J17544-2619 has displayed many large outbursts in the past and is considered an archetypal example of SFXTs. A search of the INTEGRAL/ISGRI data archive from MJD 52698-54354 has revealed 11 outbursts and timing analysis of the light curve identifies a period of 4.926±0.001d which we interpret as the orbital period of the system. We find that large outbursts occasionally occur outside of periastron and place an upper limit for the radius of the supergiant of <23R☉.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): gamma-rays: observations - X-rays: binaries - X-rays: individual: IGR J17544-2619

Simbad objects: 8

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Number of rows : 8
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 J16418-4532 HXB 16 41 50.7984926736 -45 32 25.366995132           BN0.5Ia 120 0
2 IGR J16465-4507 HXB 16 46 35.2590465192 -45 07 04.609890912       14.033   O9.5Ia 105 0
3 IGR J16479-4514 HXB 16 48 06.56184 -45 12 06.8148           O9.5Iab 142 0
4 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
5 IGR J17544-2619 HXB 17 54 25.2722906112 -26 19 52.576928292   14.71 12.94 12.10 10.38 O9Ib 207 0
6 SAX J1818.6-1703 HXB 18 18 37.8984077808 -17 02 47.967846180           B0Iab 112 0
7 IGR J18410-0535 HXB 18 41 00.4353543192 -05 35 46.474692324   15.91   13.645 11.631 B1Ib 142 0
8 IGR J18483-0311 HXB 18 48 17.2064716656 -03 10 16.865225040 23.702 25.162 21.884 17.888 15.88 B0.5Ia 135 0

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