Media Information

 
 
 
Collection:
NASA Hubble Space Telescope Collection
Title:
Fast-Flying Black Hole Yields Clues to Supernova Origin
Object Name:
GRO J1655-40
Acknowledgement:
*Illustration Credit:* ESA [ http://spacetelesco…], NASA [ http://www.nasa.gov/], and Felix Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)
Fast Facts:
Technical facts about this news release:

About the Object Object Name: GRO J1655-40 Object Description: Black Hole X-ray Binary Position (J2000): R.A. 16h 54m 00.14s
Dec. -39° 50' 44.9" Constellation: Scorpius Distance: 3,200 - 9,600 light-years (1000 - 3000 parsecs) About the Data Instrument: WFPC2 Exposure Date(s): April 1995, June 2001 Exposure Time: 33 minutes Principal Astronomers: I.F. Mirabel (CEA & IAFE/CONICET), R. Mignani (ESO), I. Rodriguez (CEA), J.A. Combi (Argentine Institute for Radio Astronomy), L.F. Rodriguez (UNAM), F. Guglielmetti (MPE) About this Release Release Date: November 18, 2002 Filters: F675W (R) Release Credit: ESA, NASA and F. Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)
note:
*Image Type:*: Artwork
note:
*Release Date*:November 18, 2002 10:00 AM (EST)
note:
*Title*:Fast-Flying Black Hole Yields Clues to Supernova Origin
note:
*News Release Number:*: STScI-2002-30a
note:
*Description*:

GRO J1655-40 is the second so-called 'microquasar' discovered in our Galaxy. Microquasars are black holes of about the same mass as a star. They behave as scaled-down versions of much more massive black holes that are at the cores of extremely active galaxies, called quasars. Astronomers have known about the existence of stellar-mass black holes since the early 1970s. Their masses can range from 3.5 to approximately 15 times the mass of our Sun.

Using Hubble data, astronomers were able to describe the black-hole system. The companion star had apparently survived the original supernova explosion that created the black hole. It is an aging star that completes an orbit around the black hole every 2.6 days. It is being slowly devoured by the black hole. Blowtorch-like jets (shown in blue) are streaming away from the black-hole system at 90 percent of the speed of light.
facet_what:
Sun
facet_what:
FAST
facet_what:
ESO
facet_what:
Scorpius
facet_what:
supernova
facet_where:
Argentina
facet_where:
Washington, D.C.
facet_when:
April 1995
facet_when:
June 2001
facet_when:
November 18, 2002
facet_when_year:
2002
facet_when_year:
1995
facet_when_year:
2001
UID:
SPD-HUBBLE-STScI-200 2-30a
original url:
Release Date:
November 18, 2002 10:00 AM (EST)

Fast-Flying Black Hole Yields Clues to Supernova Origin