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Normal & Starburst Galaxies
X-ray Astronomy Field Guide
Normal & Starburst Galaxies
Questions and Answers
Normal & Starburst Galaxies
Chandra Images
Normal & Starburst Galaxies
Animations & Video: Normal Galaxies & Starburst Galaxies
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Click for high-resolution animation
1. Sequence of Andromeda Galaxy (M31) Images
QuicktimeMPEG Beginning with a wide-field optical view, this sequence of Andromeda Galaxy images moves into an X-ray look of the central region. In this Chandra image, red represents lower energy, green as medium energy, and finally blue as the highest energy X-rays that Chandra detects. This sequence also shows a composite of X-ray and infrared light, before returning to the Chandra-only view.
[Runtime: 0:14]
(X-ray: NASA/UMass/Z.Li & Q.D.Wang; Optical: NOAO/AURA/NSF/T.A.Rector & B.A.Wolpa; Infrared: NASA/JPL-Caltech)

Related Chandra Images:
  • Photo Album: M31

Click for high-resolution animation
2. Sequence of Chandra Images of Galactic Center & Sgr A*
QuicktimeMPEG This sequence begins with a 400 by 900 light-year mosaic of several Chandra images of the central region of our Galaxy that reveals hundreds of white dwarf stars, neutron stars, and black holes bathed in an incandescent fog of multimillion-degree gas. The mosaic then zooms into a large region around the supermassive black hole at our Galaxy's center, a.k.a. Sagittarius A* or Sgr A*. Marked in this field around Sgr A* are two newly discovered large lobes of multimillion-degree gas that extend for dozens of light years on either side of the black hole. The final Chandra image in this sequence is a close-up of the location of the supermassive black hole Sgr A* and an X-ray jet. This suspected jet is 1.5 light years in length and is due to high-energy particles ejected from the vicinity of the black hole.
[Runtime: 0:22]
(Galactic Center (Survey): NASA/UMass/D.Wang et al., Sgr A* (3-color & close-up): NASA/CXC/MIT/F.K.Baganoff et al.)

Related Chandra Images:

Click for high-resolution animation
3. NOAO Optical and Chandra X-ray Sequence of M74
QuicktimeMPEG This sequence starts with an optical image of the galaxy M74 (a.k.a. NGC 628), which is about 32 million light years from Earth in the constellation Pisces. The view then adds Chandra's X-ray image and zooms onto one source in the galaxy's spiral arm. Astronomers believe this object, named CXOU J013651.1+154547, is a medium-size black hole, which would bridge the size gap between other known black holes.
[Runtime: 0:22]
(X-ray: NASA/CXC/U. of Michigan/J.Liu et al.; Optical: NOAO/AURA/NSF/T.Boroson)

Related Chandra Images:
  • Photo Album: M74

Click for high-resolution animation
4. Optical and X-ray Images of NGC 1365
QuicktimeMPEG Beginning with the optical image of NGC 1365, the view then changes to reveal Chandra's image of the central region. The bright source in the middle of the X-ray image is generated by a disk of gas about to fall into a supermassive black hole. When a dense cloud within NGC 1365 passed in front of the black hole and disk, high-energy X-rays from the disk were blocked. This allowed astronomers to measure the size of the disk.
[Runtime: 0:10]
(X-ray: NASA/CXC/CfA/INAF/Risaliti; Optical: ESO/VLT)

Related Chandra Images:

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