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News Release Archive:

News Release 204 of 938

November 10, 2009 11:00 AM (EST)

News Release Number: STScI-2009-28

NASA's Great Observatories Celebrate International Year of Astronomy

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Image: NASA's Great Observatories Present Unique Views of the Center of the Milky Way

NASA's Great Observatories Present Unique Views of the Center of the Milky WaySTScI-PRC2009-28b

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ABOUT THIS IMAGE:

In celebration of the International Year of Astronomy 2009, NASA's Great Observatories — the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory — have produced a matched trio of images of the central region of our Milky Way galaxy. Each image shows the telescope's different wavelength view of the galactic center region, illustrating the unique science each observatory conducts.

[Top Frame] — Spitzer's infrared-light observations provide a detailed and spectacular view of the galactic center region. The swirling core of our galaxy harbors hundreds of thousands of stars that cannot be seen in visible light. These stars heat the nearby gas and dust. These dusty clouds glow in infrared light and reveal their often dramatic shapes. Some of these clouds harbor stellar nurseries that are forming new generations of stars. Like the downtown of a large city, the center of our galaxy is a crowded, active, and vibrant place.

[Middle Frame] — Although best known for its visible-light images, Hubble also observes over a limited range of infrared light. The galactic center is marked by the bright patch in the lower right. Along the left side are large arcs of warm gas that have been heated by clusters of bright massive stars. In addition, Hubble uncovered many more massive stars across the region. Winds and radiation from these stars create the complex structures seen in the gas throughout the image. This sweeping panorama is one of the sharpest infrared pictures ever made of the galactic center region.

[Bottom Frame] — X-rays detected by Chandra expose a wealth of exotic objects and high-energy features. In this image, pink represents lower energy X-rays and blue indicates higher energy. Hundreds of small dots show emission from material around black holes and other dense stellar objects. A supermassive black hole — some four million times more massive than the Sun — resides within the bright region in the lower right. The diffuse X-ray light comes from gas heated to millions of degrees by outflows from the supermassive black hole, winds from giant stars, and stellar explosions. This central region is the most energetic place in our galaxy.

Object Name: Galactic Center

Image Type: Astronomical/Annotated

Credit: NASA, ESA, SSC, CXC, and STScI

NEWS RELEASE IMAGES

The above montage includes these images:

Galactic Center Region in Infrared from Spitzer Image Type: Astronomical Galactic Center Region in Infrared from Spitzer Galactic Center Region in Near-Infrared from Hubble Image Type: Astronomical Galactic Center Region in Near-Infrared from Hubble Galactic Center Region in X-rays from Chandra Image Type: Astronomical Galactic Center Region in X-rays from Chandra

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