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

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ID# 44

SLX 1744-299

AX J1747.4-3000

Candidate UCXB

RA                 Dec     [hh:mm:ss.ss]          [dd:mm:ss.ss] 17:47:25.89    -30:00:01.6                      [ICRS]

ℓ                      b [deg]                            [deg] 359.295259  -00.889669

Year of discovery: 1990

(Skinner1990)

Basic data

Location in Globular Cluster
Type of accretor	NS	Persistent
Distance [kpc] (other distances)	<7.2±1.4 (H or He?)	Chelovekov2017 Lin2018Pavlinsky1994
z [kpc]	-0.11	Chelovekov2017
Orbital period (Porb) [min]
Porb determination method
Thermonuclear X-ray burst	IB	Pavlinsky1994IntZand2007Alizai2020
Peak X-ray flux [erg s-1 cm-2] (2 - 10 keV)	2.08E-10	Mori2005
NH [x1022 cm-2]	3.5	Mori2005
E(B-V) [mag]
Magnitude	I=23.37±0.28	Zolotukhin2011
Proposed companion

NOTES

SLX 1744-299, first identified with a non-imaging instrument on board Spacelab-2, was later resolved into two sources separated by ~3’. The northern and southern components were then renamed as SLX 1744-299 and SLX 1744-300, respectively.

Spectral data

UV
Optical
X-ray	Featureless	Mori2005

Peak Optical/NIR magnitudes

If the system is transient, quiescent magnitudes are indicated with a "q" superindex Zolotukhin2011
I=23.37±0.28, J > 19.9, H > 18.7, K > 18 (Vega)

Aladin finding chart

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

SLX 1744-299 in Simbad

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Pan-STARRS1 finding chart

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References to finding charts

Zolotukhin2011