181. Pr-17-02.html PR Photo 23c/02 Orbit of the star S2 around the central black Hole. The two yellow arrows mark the position of the black hole candidate SgrA* at http://www.eso.org/outreach/press-rel/pr-2002/pr-17-02.html

ESO OUTREACH HOME INDEX HELP ... VLT INFORMATION Information from the European Southern Observatory ESO Press Release 17/02 16 October 2002 (Video Clip 02/02 added on 21 October) Embargoed until Wednesday, October 16, 2002, 20:00 hrs CEST (18 hrs UT) Surfing a Black Hole Star Orbiting Massive Milky Way Centre Approaches to within 17 Light-Hours Summary An international team of astronomers , lead by researchers at the Max-Planck Institute for Extraterrestrial Physics (MPE) , has directly observed an otherwise normal star orbiting the supermassive black hole at the center of the Milky Way Galaxy. Ten years of painstaking measurements have been crowned by a series of unique images obtained by the Adaptive Optics (AO) NAOS-CONICA (NACO) instrument on the 8.2-m VLT YEPUN telescope at the ESO Paranal Observatory . It turns out that earlier this year the star approached the central Black Hole to within 17 light-hours - only three times the distance between the Sun and planet Pluto - while travelling at no less than 5000 km/sec Previous measurements of the velocities of stars near the center of the Milky Way and variable X-ray emission from this area have provided the strongest evidence so far of the existence of a central Black Hole in our home galaxy and, implicitly, that the dark mass concentrations seen in many nuclei of other galaxies probably are also supermassive black holes. However, it has not yet been possible to exclude several alternative configurations.

182. Galactic Center Research The central black hole is located in the centre of the box which marks the area shown in The supermassive black hole in the centre of the Milky Way was http://www.mpe.mpg.de/ir/GC/

183. EOA Scientific Systems An academic approved course in astronomy on CDROM that studies the universe, stars, galaxies, quasi-stellar objects and blacks holes, and our Solar System. http://www.eoascientific.com/science_education_software/astronomy/astronomy_soft

@import url(/templates/eoa_com/style/main.css); //Nothing HOME ABOUT EOA PRODUCTS SERVICES ... Astronomy : Software Astronomy Explorer Description: Discover!Astronomy Series - 3 Volume Set (3 CDs) Description: Discover!Astronomy Volume 3: The Outer Solar System Description: Discover!Astronomy Volume 1: Astronomy and the Universe Description: Discover!Astronomy Volume 2: Earth and the Inner Solar System Description: HOME - ABOUT EOA PRODUCTS SERVICES ... CONTACT EOA Scientific Systems, Inc., 10 Kidston Road, Captain Spry Center, Halifax, Nova Scotia, Canada, B3R 2J7 Toll Free (US and Can): 1-888-666-6362, Facsimile: 1 (902) 477-6834 Long Distance: 1-902-477-6336, Email Sales: sales@eoascientific.com This site is best viewed at 800 by 600 or higher resolution. Website Problems: email Webmaster Software:

184. [gr-qc/9707012] Black Holes Swinburne University Centre for Astrophysics and Supercomputing http://xxx.lanl.gov/abs/gr-qc/9707012

General Relativity and Quantum Cosmology, abstract gr-qc/9707012 From: Paul Townsend [ view email ] Date: Fri, 4 Jul 1997 15:13:06 GMT (139kb) Black Holes Authors: P.K. Townsend Comments: 145 pp. Many diagrams Lecture notes for a 'Part III' course 'Black Holes' given in DAMTP, Cambridge. The course covers some of the developments in Black Hole physics of the 1960s and 1970s. Full-text: PostScript PDF , or Other formats References and citations for this submission: SLAC-SPIRES HEP (refers to , cited by , arXiv reformatted); CiteBase (autonomous citation navigation and analysis) Which authors of this paper are endorsers? Links to: arXiv gr-qc find abs

185. Stephen Hawking's Universe: Strange Stuff Explained Stephen Hawking s Universe The Web companion piece provides detailed explanations of the most important ideas and developments in human understanding of http://www.pbs.org/hawking/strange/html/blackh.html

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