2001A&A...374L..19A


Query : 2001A&A...374L..19A

2001A&A...374L..19A - Astronomy and Astrophysics, volume 374L19-20 (2001/8-2)

A precise determination of black hole spin in GRO J1655-40.

ABRAMOWICZ M.A. and KLUZNIAK W.

Abstract (from CDS):

We note that the recently discovered 450 Hz frequency in the X-ray flux of the black hole candidate GRO J1655-40 is in a 3:2 ratio to the previously known 300 Hz frequency of quasi-periodic oscillations (QPO) in the same source. If the origin of high frequency QPOs in black hole systems is a resonance between orbital and epicyclic motion of accreting matter, as suggested previously, the angular momentum of the black hole can be accurately determined, given its mass. We find that the dimensionless angular momentum is in the range 0.2<j<0.67 if the mass is in the (corresponding) range of 5.5 to 7.9 solar masses.

Abstract Copyright: ∼

Journal keyword(s): equation of state - relativity - stars: black holes - X-rays

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0

Query : 2001A&A...374L..19A

Basic data :
V* V1033 Sco -- High Mass X-ray Binary
Other object types:
otypes_help
X (2008ApJ,PBC,...), * (UCAC4,ChOPS,...), LXB (2013ApJS), V* (V*,AAVSO), gam (GRO,INTREF), HXB (2012ApJ), No* (NOVA), NIR (2MASS)
ICRS coord. (ep=J2000) :
16 54 00.1423963019 -39 50 44.761701340 (Optical) [ 0.0438 0.0276 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) :
16 50 33.1097810893 -39 45 52.417537282 [ 0.0438 0.0276 90 ]
Gal coord. (ep=J2000) :
344.9819404282615 +02.4559750537325 [ 0.0438 0.0276 90 ]
Proper motions mas/yr :
-4.329 -7.461 [0.062 0.047 90] A 2020yCat.1350....0G
Parallaxes (mas):
0.2902 [0.0481] A 2020yCat.1350....0G
Spectral type:
F3-6IV D 2008ApJ...685..463K
Fluxes (5) :
R 16.14 [0.01] C 2008ApJ...685..463K
G 16.226719 [0.005626] C 2022yCat.1355....0G
J 13.516 [0.029] C 2003yCat.2246....0C
H 12.997 [0.044] C 2003yCat.2246....0C
K 12.744 [0.034] C 2003yCat.2246....0C
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Identifiers (17) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

UCAC4 251-103937 INTREF 727 SWIFT J1654.0-3950 AAVSO 1647-39
ChOPS J165400.14-395045.1 2MASS J16540014-3950447 TIC 339434742 Gaia DR3 5969790961312131456
GRO J1655-40 NOVA Sco 1994 V* V1033 Sco
GRO J1655-44 PBC J1653.9-3950 2XMM J165400.1-395044
GRO J1655-41 SWIFT J1653.8-3952 [KRL2007b] 208

References (1980 between 1850 and 2026) (Total 1980)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Distance : 1    Plx : 1    PM : 1    SpT : 1   

   

Observing logs
XMM : 7   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : V* V1033 Sco

Link by name to the catalogue in VizieR :

UCAC4 251-103937 2MASS J16540014-3950447 V* V1033 Sco Gaia DR3 5969790961312131456

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