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NASA TV press conference:

NASA's Chandra Finds Massive Black Holes Common in Early Universe

Wednesday, June 15, 2011 (1:00 p.m. Eastern)

Using the deepest X-ray image ever taken, astronomers found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA's Chandra X-ray Observatory shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies.

A video will air on NASA Television on June 15 (check the NASA TV schedule for additional times and information).


Ezequiel Treister Ezequiel Treister, (Einstein Fellow, University of Hawaii)
Kevin Schawinski Kevin Schawinski, (Einstein Fellow, Yale University)
Priyamvada Natarajan Priyamvada Natarajan, (Professor, Yale University)
Mitch Begelman Mitch Begelman, (Professor, University of Colorado)

Bios Page


Figure 1. Motion Graphic: This sequence of images zooms into the 4-million-second exposure of the Chandra Deep Field South.

Figure 2. Illustration of galaxy in early universe

Figure 3. Illustration of the center of this young galaxy.

Sagittarius A*

Figure 4.Sagittarius A* image.

Figure 5. Animation: This animation shows an artist's impression of a distant galaxy and its hidden black hole found in an epoch when the Universe was less than one billion years old.

Figure 6. Close-up of supermassive black hole.

Figure 7. Reionization in the early universe

Supplementary Graphics

Figure 1. Chandra 4Ms CDFS image.

Figure 2. Chandra/HST composite and Two Stacked Chandra images

Additional Information

Paper Title: "Black Hole Growth in the Early Universe is Self-Regulated and Largely Hidden From View"

Full Author List: Ezequiel Treister, Kevin Schawinski, Marta Volonteri, Priyamvada Natarajan, and Eric Gawiser

Scientist Contact Information:
Ezequiel Treister:
Kevin Schawinski:
Priyamvada Natarajan:
Mitch Begelman:

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