Web Directory

» Astrophysical Evidence for the Existence of Black Holes
   Review article by Annalisa Celotti, John C. Miller, and Dennis W. Sciama (SISSA, Trieste) about the current state of the search for observational evidence for the existence of both stellar-mass and supermassive black holes.
   http://arxiv.org/abs/astro-ph/9912186

» Black Holes
   Black hole page from NASA's "Imagine the universe!" site; includes a section on observational aspects - "If We Can't See Them, How Do We Know They're There?"
   http://imagine.gsfc.nasa.gov/docs/science/know_l2/black_holes.html

» Black Holes in Astrophysics
   Review article by Ramesh Narayan (Harvard-Smithsonian Center for Astrophysics) about the astrophysical evidence for black holes.
   http://arxiv.org/abs/gr-qc/0506078

» Closest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way
   Article by R. Schodel and colleagues (Max Planck Institute for Extraterrestrial Physics) about the best evidence to date for the existence of a supermassive black hole in the center of our own galaxy - the way it influences the orbits of nearby stars.
   http://arxiv.org/abs/astro-ph/0210426

» Detection of Hard X-ray Emission from the Galactic Nuclear Region with INTEGRAL
   Article by Guillaume Belanger and colleagues; recounts X-ray observations of the neighborhood of our galaxy's central black hole.
   http://arxiv.org/abs/astro-ph/0311147

» Do Black Holes Exist?
   Brief text by Pablo G. Ostrov about the evidence for the existence of black holes, aimed at a general audience.
   http://pgostrov.googlepages.com/e3.html

» Evidence for the Black Hole Event Horizon
   Review article by Ramesh Narayan about possible observational evidence for the defining feature of black holes.
   http://arxiv.org/abs/astro-ph/0310692

» Field Guide to X-ray Sources
   Pages on the website of the Chandra X-Ray Observatory; includes information about stellar, mid-mass and supermassive black holes, Chandra images, and a podcast.
   http://chandra.harvard.edu/xray_sources/blackholes.html

» Hubble Space Telescope Discovers Disk Fueling Possible Black Hole
   News item published on the website of the Space Telescope Science Institute.
   http://hubblesite.org/newscenter/archive/releases/1992/27/text/

» Radio Astronomers Lift 'Fog' on Milky Way's Dark Heart
   Press release by the National Radio Astronomy Observatory about observations of the immediate neighborhood of our galaxy's central supermassive black hole.
   http://www.nrao.edu/pr/2004/sagastar/

» Study of Accretion Processes on Black Holes: Fifty Years of Developments
   Review article by Sandip K. Chakrabarti of the research done on one of the main mechanisms by which black holes cause highly luminous phenomena in their immediate neighborhood.
   http://arxiv.org/abs/astro-ph/0402562

» The Afterglow of Massive Black Hole Coalescence
   Article by Milos Milosavljevic and Stearl Phinney; describes the kind of afterglow that should be visible for X-ray telescopes when two massive black holes merge.
   http://arxiv.org/abs/astro-ph/0410343

» XMM: Black Holes and Quasars
   Educational pages on the website of the space-borne X-ray telescope XMM, hosted by the University of Birmingham. Information about black holes and other astronomical sources of X-rays.
   http://www.sr.bham.ac.uk/xmm/blackholes.html