1. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Extraordinary Evidence for an Incredible Idea Presented by: Name, Affiliation Location and Date here

2. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes A Brief Summary of Black Holes Stellar-mass black holes The most massive stars end their lives in titanic explosions, leaving nothing behind but their ultra- dense collapsed cores. Mid-mass black holes A new class of recently-discovered black holes have masses on the order of hundreds or thousands of stars. Representations above are artists’ impressions, and not to scale. Supermassive black holes The centers of galaxies contain giant black holes, with the masses of millions, even billions, of stars. We cannot see black holes directly, but their influence on the matter around them reveals their presence.

3. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes X-ray Binary: Visible Light View Many of the stars in our universe come in pairs. Ordinary stars orbiting around a black hole will appear to “wobble” in the sky. Sloan Digital Sky Survey

4. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes X-ray Binary: X-ray Light View More dramatically, matter being pulled off the orbiting star, into the accretion disk of the black hole, glows brightly in x-rays. NASA / CXC / SAO

5. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Globular Cluster: Visible Light View Globular clusters are large, dense clusters of stars. These stars are among the oldest stars in our universe. W. Keel (U. Alabama), et al.. 1.54-m Telescope, Chile

6. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Globular Cluster: X-ray Light View Stars orbiting around black holes inside these ancient clusters are revealed by the x-ray glow of matter around them. NASA / CXC / CfA/J. Grindlay & C. Heinke

7. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Milky Way Center: Visible Light View The heart of our galaxy is a veritable soup of stars, gas, and dust. On a clear night in a dark sky, the view is breathtaking. W. Keel (U. Alabama), et al.. 1.54-m Telescope, Chile

8. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Milky Way Center: X-ray Light View Lurking within our galaxy’s hot, turbulent center are x-ray binaries, neutron stars, and even a supermassive black hole. NASA / U.Mass / D. Wang, et al.

9. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Spiral Galaxy: Visible Light View Like our own Milky Way, M74 is a majestic spiral. The swirling spiral arms house a menagerie of stars and stellar material. NOAO / AURA / NSF/ T. Boroson

10. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Spiral Galaxy: X-ray Light View X-ray observations of strange new sources provide evidence for a new class of black holes, with the mass of 10,000 stars. NASA/CXC / U. Michigan / J. Liu et al.

11. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Spiral Galaxy: Multi-wavelength View Combining x-ray and visible light observations can pinpoint the locations of black hole, providing a more complete picture. NASA / CXC / U. Michigan / J. Liu et al. NOAO / AURA / NSF / T. Boroson

12. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Spiral Galaxies: An X-ray Gallery Thanks to the Chandra X-ray Observatory, these “mid-mass” black holes are becoming part of the story for all galaxies. NASA / CXC / SAO / R. DiStefano, et al.

13. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Elliptical Galaxy: Visible and X-ray Views Indeed, most (if not all) galaxies are now thought to house a variety of black holes, ranging in mass from small to large. NASA / CXC / UVA / C. Sarazin, et al. Digital Sky Survey

14. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Deep Field Galaxies: X-ray View Looking out deep into space and back in time, we see supermassive black holes in the cores of the earliest galaxies. NASA / CXC / PSU /D. M. Alexander, F. E. Bauer, W. N. Brandt, et al.

15. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes If animation does not play automatically, download animation “Galaxy Merger and Chandra Data” from http://chandra.harvard.edu/photo/2002/0192/animation s.html Direct Link: http://chandra.harvard.edu/photo/2002/0192/SimPlusD ata_small.mpg Animation must be in the same folder as presentation to run. Colliding Galaxies: A Black Hole Merger Actual observations provide evidence and data for computer simulations. What does it look like when black holes collide? NASA / CXC / MPE / S. Komossa, et al. J. Barnes (U.Hawaii) J. Hubbard (NRAO)

16. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Centaurus A: Visible Light View Centaurus A is a nearby galaxy that is thought to be the result of a merger of two smaller galaxies. What’s behind the dust? M. Rejkuba (ESO-Garching) et al., ISAAC, VLT ANTU telescope, ESO Paranal Observatory

17. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Centaurus A: X-ray Light View A telltale sign of a black hole is a high-energy jet blasting into space. This galaxy has a supermassive black hole in its center! NASA / SAO / R. Kraft, et al.

18. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Elliptical Galaxy: Visible and X-ray Views The elliptical galaxy M87 also houses a monster in its middle: the most massive black hole yet observed in our universe. NASA / CXC / M. Forman, et al. Palomar Observatory, Digitized Sky Survey

19. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Black Holes Galore! From the formation of galaxies to the deaths of stars, black holes are an integral part of our universe’s history. NASA/CXC/SAO/H.Marshall et al. NASA/CXC/MIT/F.K.Baganoff et al. NASA/CXC/U.Amsterdam/S.Migliari et al. X-ray: NASA/CXC/MIT/UCSB/P.Ogle et al. Optical: NASA/STScI/A.Capetti et al NASA/UMD/A.Wilson et al.

20. http://www.universeforum.org/einstein/ Real Images of Actual Black Holes Credits This slide show was created for: Inside Einstein’s Universe http://www.universeforum.org/einstein/ Black hole images in this presentation are courtesy: NASA’s Chandra X-ray Center at the Smithsonian Astrophysical Observatory http://chandra.harvard.edu/ To learn more about black holes, visit: http://www.universeforum.org/