The runaway black hole GRO J 1655 - 40 ⋆
نویسنده
چکیده
We have used the Hubble Space Telescope to measure the motion in the sky and compute the galactocentric orbit of the black hole X-ray binary GRO J1655-40. The system moves with a runaway space velocity of 112± 18 km s in a highly eccentric (e = 0.34± 0.05) orbit. The black hole was formed in the disk at a distance greater than 3 kpc from the Galactic centre and must have been shot to such eccentric orbit by the explosion of the progenitor star. The runaway linear momentum and kinetic energy of this black hole binary are comparable to those of solitary neutron stars and millisecond pulsars. GRO J1655-40 is the first black hole for which there is evidence for a runaway motion imparted by a natal kick in a supernova explosion.
منابع مشابه
On the distance of GRO J 1655 - 40 ⋆
Aims. We challenge the accepted distance of 3.2 kpc of GRO J1655-40. We present VLT-UVES spectroscopic observations to estimate the absorption toward the source, and determine a maximum distance of GRO J1655-40. Methods. We show that the accepted value of 3.2 kpc is taken for granted by many authors. We retrieved in the ESO archive UVES spectra taken in April 2004 when GRO J1655-40 was in quies...
متن کاملar X iv : a st ro - p h / 98 04 12 8 v 1 1 4 A pr 1 99 8 “ Canonical ” Black Hole States in the Superluminal Source GRO J 1655 – 40
We analyze RXTE/PCA observations of the black hole candidate and galactic superluminal source GRO J1655–40 during its recent outburst. We show that during its decay to quiescence, GRO J1655–40 goes through the high, intermediate, and low state (and that at the beginning of its decay it might have even shown signatures of a very high state), just like other black hole candidates. This is the fir...
متن کاملDo X-ray Binary Spectral State Transition Luminosities Vary?
We tabulate the luminosities of the soft-to-hard state transitions of all X-ray binaries for which there exist good X-ray flux measurements at the time of the transition, good distance estimates, and good mass estimates for the compact star. We show that the state transition luminosities are at about 1-4% of the Eddington rate, markedly smaller than those typically quoted in the literature, wit...
متن کاملar X iv : a st ro - p h / 99 11 45 8 v 1 2 4 N ov 1 99 9 Is Nova Sco 1994 ( GRO 1655 - 40 ) a Relic of a GRB ?
We suggest Nova Sco 1994 (GRO 1655-40) as a possible relic of a Gamma Ray Burster (GRB) and Type Ib supernova (SN) explosion, showing that there is evidence both that the black hole was spun up by accretion and that there was a supernova explosion. We use the disc energy delivered from the rotational energy of the black hole to power the SN, and give arguments that roughly equal energy goes int...
متن کاملOrbital Periodicities in the Hard Emission from X-ray Transient - Black Hole Candidates between Outbursts
During long-term observations of the Galactic Centre region in hard X-rays (10-300 keV) in space experiments made on board Prognoz-9 satellite and ”Mir” orbital station (GRIF experiment) some periodic sources were revealed. They include periodicities of hour and day range of period: 152 h, 98 h, 82 h (4U170037), 69 h, 62 h, 13.3 h, 9.36 h, 8.03h, 8.15 h (Cen X-4), 4.38 h, 4.35 h (4U1755-33) and...
متن کامل