Jet-Launching Structure Resolved Near the Supermassive Black Hole in M87
Sheperd S. DoelemanHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAVincent L. FishMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USADavid E. SchenckMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAChristopher BeaudoinMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAR. BlundellHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAGeoffrey C. BowerDepartment of Astronomy, University of California Berkeley, Hearst Field Annex, Berkeley, CA 94720, USAAvery E. BroderickDepartment of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2l 3G1, CanadaRichard ChamberlinCaltech Submillimeter Observatory, 111 Nowelo Street, Hilo, HI 96720, USAR. FreundSteward Observatory, Arizona Radio Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721–0065, USAPer FribergJames Clerk Maxwell Telescope, Joint Astronomy Centre, 660 North A'ohoku Place University Park, Hilo, HI 96720, USAMark GurwellHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAPaul T. P. HoAcademia Sinica Institute for Astronomy and Astrophysics, 11F Astronomy-Mathematics Building, National Taiwan University, No. 1, Roosevelt Road, Section 4 Taipei 10617, Taiwan, R.O.CMareki HonmaNational Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanMakoto InoueAcademia Sinica Institute for Astronomy and Astrophysics, 11F Astronomy-Mathematics Building, National Taiwan University, No. 1, Roosevelt Road, Section 4 Taipei 10617, Taiwan, R.O.CT. P. KrichbaumMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, GermanyJames W. LambOwens Valley Radio Observatory, California Institute of Technology, 100 Leighton Lane, Big Pine, CA 93513–0968, USAAbraham LoebHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAC. J. LonsdaleMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USADaniel P. MarroneSteward Observatory, Arizona Radio Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721–0065, USAJ. M. MoranHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USATomoaki OyamaNational Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanR. L. PlambeckDepartment of Astronomy, University of California Berkeley, Hearst Field Annex, Berkeley, CA 94720, USARurik A. PrimianiHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAA. E. E. RogersMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAD. L. SmytheMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAJason SoohooMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAP. A. StrittmatterSteward Observatory, Arizona Radio Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721–0065, USAR. P. J. TilanusJames Clerk Maxwell Telescope, Joint Astronomy Centre, 660 North A'ohoku Place University Park, Hilo, HI 96720, USAMichael TitusMIT Haystack Observatory, Off Route 40, Westford, MA 01886, USAJonathan WeintroubHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAM. C. H. WrightDepartment of Astronomy, University of California Berkeley, Hearst Field Annex, Berkeley, CA 94720, USAKen YoungHarvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAL. M. ZiurysSteward Observatory, Arizona Radio Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721–0065, USA
2012en
ABI
Аннотация
Approximately 10% of active galactic nuclei exhibit relativistic jets, which are powered by the accretion of matter onto supermassive black holes. Although the measured width profiles of such jets on large scales agree with theories of magnetic collimation, the predicted structure on accretion disk scales at the jet launch point has not been detected. We report radio interferometry observations, at a wavelength of 1.3 millimeters, of the elliptical galaxy M87 that spatially resolve the base of the jet in this source. The derived size of 5.5 ± 0.4 Schwarzschild radii is significantly smaller than the innermost edge of a retrograde accretion disk, suggesting that the M87 jet is powered by an accretion disk in a prograde orbit around a spinning black hole.
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