Details

Autor(en) / Beteiligte

• Webb, Natalie
• Cseh, David
• Lenc, Emil
• Godet, Olivier
• Barret, Didier
• Corbel, Stephane
• Farrell, Sean
• Fender, Robert
• Gehrels, Neil
• Heywood, Ian

Titel

Radio Detections During Two State Transitions of the Intermediate-Mass Black Hole HLX-1

Ist Teil von

• Science (American Association for the Advancement of Science), 2012-08, Vol.337 (6094), p.554-556

Ort / Verlag

Goddard Space Flight Center: American Association for the Advancement of Science

Erscheinungsjahr

2012

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• Relativistic jets are streams of plasma moving at appreciable fractions of the speed of light. They have been observed from stellar-mass black holes (∼3 to 20 solar masses, M ⊙ ) as well as supermassive black holes (∼10 6 to 10 9 M⊙) found in the centers of most galaxies. Jets should also be produced by intermediate-mass black holes (∼10 2 to 10 5 M ⊙ ), although evidence for this third class of black hole has, until recently, been weak. We report the detection of transient radio emission at the location of the intermediate-mass black hole candidate ESO 243-49 HLX-1, which is consistent with a discrete jet ejection event. These observations also allow us to refine the mass estimate of the black hole to be between ∼9 × 10 3 M ⊙ and ∼9 × 10 4 M ⊙ .