UltraCompCAT A Catalogue of Ultra-Compact and Short Orbital Period X-ray Binaries

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ID# 38

SAX J1712.6-3739

1RXS J171237.1–373834

Candidate UCXB

RA                 Dec     [hh:mm:ss.ss]          [dd:mm:ss.ss] 17:12:36.77  -37:38:41.0                      [ICRS]

ℓ                      b [deg]                            [deg] 348.938940  00.919334

Year of discovery: 1999

(Intzand1999b)

Basic data

Location in Globular Cluster
Type of accretor	NS	Persistent
Distance [kpc] (other distances)	3.7±0.8(H), 4.8±1.0(He)	Galloway2020 Cocchi2001Lin2020Jonker2004
z [kpc]	0.08	Galloway2020
Orbital period (Porb) [min]
Porb determination method
Thermonuclear X-ray burst	Short-B IB	Cocchi1999 Kuulkers2009
Peak X-ray flux [erg s-1 cm-2] (2 - 10 keV)	1.29E-10	Lin2020
NH [x1022 cm-2]	1.3	Fiocchi2008b
E(B-V) [mag]
Magnitude	V=23.93±0.26	Wiersema2009
Proposed companion

NOTES

Wiersema2009 discovered an Hα bow-shock nebula associated with the source.

Spectral data

UV
Optical
X-ray

Peak Optical/NIR magnitudes

If the system is transient, quiescent magnitudes are indicated with a "q" superindex Wiersema2009 Revnivtsev2013
I=21.45±0.06, R=22.61±0.12, V=23.93±0.26, J > 20.6, H > 20.2, K > 19.5

Aladin finding chart

Scroll to zoom. Set survey image in "Manage layers"
Default image: DSS2 Red

SAX J1712.6-3739 in Simbad

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References to finding charts

Wiersema2009Revnivtsev2013