IGR J16358-4726

IGR J16358-4726

Type	Spectral Type temperature	Radio Counterpart			Infrared Counterpart
		R.A. (J2000)	Dec. (J2000)	References (position)	R.A. (J2000)	Dec. (J2000)	References (position)
Symbotic X-ray Binary x					Candidate = 2MASS J16355369-4725398		Koveliotou et al. 2003 IAUC 8109
					16h 35m 53.69s	-47° 25' 39.8"
Published Papers		Revnivtsev et al. 2003, Astronomy Letters Preprint Patel et al. 2004, ApJ, 602, L45 Preprint Lutovinov et al. 2005 A&A, 444, 821 Filippova et al. 2005 Astro. Letters, 31, 729astro-ph 0509525 Mereghetti et al. 2006 A&A, 450, 769 Patel et al. 2007 ApJ, 657, 994 Chaty et al. 2008, A&A, 484, 783 Rahoui et al. 2008, A&A, 484, 801 Nespoli et al. 2010, A&A, 516, A94 Bodaghee et al. 2012 , accepted in ApJ, arXiV 1203.0557

Miscellaneous :

Patel et al 2004 :

Lutovinov et al 2005 :

Mereghetti et al. 2006 :

Source detected by XMM on two occasions: spectra are well described with an absorbed power law with Gama=1.5 and Nh=2e23 cm-2 (for the brightest observation)
5880s pulsation is present although the source flux is 200 times dimmer than when discovered with Chandra
when source not detected upper limit on the 2-10 keV flux is 4e-14 erg/cm2/s

Patel et al. 2007, ApJ :

Any periodic outburst cannot occur on period > 400 days
Joint Chandra and INTEGRAL spectrum fitted with absorbed cut off powerlaw (or equivalently model of comptonisation)
Gamma=0.4, Ecut=19 keV, Efold=12 keV
1.6 hour pulsation confirmed in INTEGRAL data
spin up rate of 1.9e-4s/s
B~1e13-1e15 G

Chaty et al. 2008:

Optical and infrared observations
B>23.42, V>23.67, R=23.75, I=20.49, Z=18.59
J=15.46, H=13.57, K_s=12.60
IR counterpart could be a blend of sources
Very faint and absorbed near IR spectrum
Tentative P-cygni profile for some lines and HeI and HeII absorption=>typical of O/B Sg
Forbidden FeII line => SgB[e]

Rahoui et al. 2008:

Medium infrared observations
SED fitting => A_V=17.6, T_star=24500 K
Obscuring material possibly contributes to MIR spectrum with T=810 K at 10.1 R_star
SgB[e] possibly confirmed, and suggested distance 18.5 kpc

Nespoli et al. 2008: ATel 1450

Prominent CO absorption features between 2.29 and 2.40 µm, <=> late type stars.
Presence of metallic lines.
Presence of He I 20581 A and Br-gamma =>circumstellar disk around a compact object, but warning is given
HXMB ruled out, companion very probablyof K or M spectral type => system is Symbiotic X-ray binaries

Nespoli et al. 2010 (A&A):

CO absorption features => late type star
HXMB ruled out, companion very probably of K or M Giant/Supergiant => system is Symbiotic X-ray binaries

Bodaghee et al. 2012 (ApJ) :

Last updated 12 April 2010