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

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ID# 48

1M 1716-315

1H 1715-321, MX 1716-31

Candidate UCXB

RA                 Dec     [hh:mm:ss.ss]          [dd:mm:ss.ss] 17:18:47.02  -32:10:13.54                      [ICRS]

ℓ                      b [deg]                            [deg] 354.132917  03.069692

Year of discovery: 1971-1974

(Markert1975)

Basic data

Location in Globular Cluster
Type of accretor	NS	Transient (Long outburst)
Distance [kpc] (other distances)	5.1(H), 6.9 (He)	Jonker2004
z [kpc]	0.37	Jonker2004
Orbital period (Porb) [min]
Porb determination method
Thermonuclear X-ray burst	short-B IB	Hoffman1978Makishima1981 Markert1976Tawara1984
Peak X-ray flux [erg s-1 cm-2] (2 - 10 keV)	1.07E-09	Jonker2007b
NH [x1022 cm-2]	0.21±0.06	Christian1997
E(B-V) [mag]
Magnitude	I>23.5	Jonker2007b
Proposed companion

NOTES

Spectral data

UV
Optical
X-ray	Featureless	Jonker2007b

Peak Optical/NIR magnitudes

If the system is transient, quiescent magnitudes are indicated with a "q" superindex Jonker2007b
I >23.5, Ks >19.5

Aladin finding chart

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

1M 1716-315 in Simbad

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References to finding charts

Jonker2007b