BlackCAT A Catalog of Stellar-Mass Black Holes in X-ray Binaries

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ID# 27

XTE J1550-564

V381 Nor

(Corbel2001)

RA     (ICRS)     DEC [hh:mm:ss.ss]          [dd:mm:ss.ss] 15:50:58.70  -56:28:35.20

ℓ                      b [deg]                            [deg] 325.8824005  -01.82687035

Year of discovery: 1998  
(Smith1998a)

# of outbursts after discovery: 5

Basic data

Distance [kpc]	4.5±0.5	Orosz2011aOrosz2002
Distance to the plane (z) [kpc]	-0.14±0.02	Orosz2011aOrosz2002
Orbital period (Porb) [h]	37.0088±0.0001	Orosz2011aOrosz2002
Peak X-ray flux [erg s-1 cm-2] [keV]	1.61E-07 [2-10]	Wu2002
Outburst magnitude (AB)	V∼16.6	Orosz2002
Quiescent magnitude (AB)	V=22.0±0.2	Orosz2002Orosz2011aCalvelo2010Jain2001
E(B-V) [mag]	1.33	Orosz2011a

Dynamically confirmed BH

NOTES

XTE J1550-564 showed a second complete outburst in 2000 (Smith2000a) and other three faint mini-outbursts in 2001, 2002 and 2003 (Tomsick2001,Belloni2002,Dubath2003).

Dynamical parameters

Orbital period [h]	37.0088±0.0001	Orosz2011aOrosz2002
Star's spectral type	K2 – 4IV	Orosz2011aOrosz2002
Star's radial velocity amplitude (K2) [km/s]	363±6	Orosz2011aOrosz2002
Mass function 'f(M1)' [M☉]	7.7±0.4	Orosz2011aOrosz2002
BH mass (M1) [M☉]	7.8 – 15.6	Orosz2011aOrosz2002
Mass ratio (q=M2/M1)	≈0.03	Orosz2011aOrosz2002
Inclination angle (i) [deg]	75±4	Orosz2011aOrosz2002
Rot. broadening (v sini) [km/s]	55±5	Orosz2011aOrosz2002

Optical/NIR magnitudes

Mag. Outburst (AB) Orosz2002
	V∼16.6
Mag. Quiescent (AB) Orosz2002Orosz2011aCalvelo2010Jain2001
B>23.8±0.1	V=22.0±0.2		R∼22
		i=19.04±0.03
J=19.24±0.04	H=17.6±0.1	Ks=18.00±0.04

Aladin finding chart

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

XTE J1550-564 in Simbad

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Finding charts

Orientation: North up, East left. Object marked
Click to enlarge in new tab/window

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Comparison stars (AB mag)

Jain2001a

B117.0±0.2	V116.2±0.2	R115.6±0.2
B217.6±0.2	V216.0±0.2	R214.7±0.1
B316.7±0.1	V315.8±0.2	R315.0±0.2
B916.3±0.2	V914.5±0.2	R911.9±0.2
B1015.7±0.1	V1014.4±0.2	R1013.3±0.1
B1117.4±0.2	V1116.5±0.2	R1115.8±0.2
B1214.5±0.1	V1213.4±0.2	R1212.5±0.1
B1317.0±0.1	V1315.8±0.2	R1314.7±0.1
B1417.2±0.2	V1415.9±0.2	R1414.8±0.2
B1515.4±0.1	V1513.5±0.2	R1511.4±0.2
B1617.2±0.2	V1616.1±0.2	R1615.0±0.4
B1716.9±0.2	V1715.4±0.2	R1714.0±0.2
B1817.5±0.2	V1816.0±0.2	R1814.6±0.2
B1916.3±0.1	V1914.9±0.2	R1913.7±0.1
B2016.9±0.2	V2015.5±0.2	R2014.5±0.1
B2117.0±0.2	V2115.2±0.2	R2113.6±0.2
B2216.0±0.1	V2214.8±0.2	R2213.9±0.1
B2316.1±0.1	V2315.2±0.2	R2314.6±0.1
B2417.4±0.2	V2416.6±0.2	R2415.8±0.2
B2515.1±0.1	V2514.5±0.2	R2514.0±0.1
B2617.1±0.2	V2615.8±0.2	R2614.7±0.2
B2714.4±0.1	V2714.0±0.2	R2714.0±0.1
B2815.4±0.1	V2813.8±0.2	R2812.3±0.2
J 115.6±0.3	H 115.7±0.3	Ks116.1±0.2
J 214.0±0.2	H 213.7±0.2	Ks214.0±0.2
J 314.9±0.3	H 314.9±0.2	Ks315.2±0.2
J 415.5±0.3	H 415.3±0.2	Ks415.6±0.2
J 514.9±0.3	H 514.7±0.2	Ks515.0±0.3
J 614.8±0.3	H 614.8±0.2	Ks615.2±0.3
J 715.3±0.3	H 715.0±0.2	Ks715.3±0.2
J 815.0±0.3	H 814.8±0.2	Ks815.1±0.2