IGR J16167-4957

	IGR J16167-4957


	Other name = 1RXS J161637.2-495847

Type	Orb. P	Radio Counterpart			Infrared Counterpart
		R.A. (J2000)	Dec. (J2000)	References (position)	R.A. (J2000)	Dec. (J2000)	References (position)
CV, possible IP	5.004h				U0375_26829054		Masetti et al. 2006 ATel 783
Published Papers		Stephen et al. 2005 A&A, 432, L49 Tomsick et al. 2006, ApJ, 647, 1049 Masetti et al. 2006, A&A, 459, 21 Barlow et al. 2006 MNRAS, 372, 224 Landi et al. 2009, MNRAS, 392, 630 Pretorius 2009, MNRAS, 395, 386 Scaringi et al. 2010, MNRAS, 401, 2207 Butters et al. 2011, A&A, 526, A77

Miscellaneous :

Masetti et al. 2006 Atel 783:

Balmer, HeI and HeII emissions at z = 0
suggest CV

Tomsick et al. 2006 astro-ph/0603810:

Chandra position confirms association with 1RXS J161637.2-495847.
Column density is ~0.5x10²² at/cm2 and Gamma~1.1, with possible high-energy cutoff.
Spectral type of optical companion (J-band magnitude =14.86(6)) is A0 which rules out HMXB.
Distance estimated at 1.8-4.2 kpc, so 0.3-10 keV luminosity is ~4.7x10³⁴ ergs/s (for d=3kpc).

Barlow et al. (2006) :

20-100 keV Power law photon index 3.8, or bresstrahlung kT=13.2 keV

Masetti et al. (2006) :

Halpha, Hbeta, He II emission lines
R=16.2
d=170 pc

Landi et al. 2008 :

Swift and INTEGRAL analysis => powerlaw or bremsstrahlung
possible IP

Pretorius 2009:

Optical observations: Phase resolved spectroscopy => Orb. period 5.004h
No spin period detected
IP nature cannot be confirmed

Butters et al. 2011:

No peak in periodogram
Spectrum typical of an IP, good IP candidate

Last updated 06 Dec. 2010

Jerome Rodriguez