Normal Galaxies & Starburst Galaxies

NASA's Chandra Reveals Origin of Key Cosmic Explosions

Feb
17

This composite image of M31 (also known as the Andromeda galaxy) shows X-ray data from NASA's Chandra X-ray Observatory in gold, optical data from the Digitized Sky Survey in light blue and infrared data from the Spitzer Space Telescope in red. The Chandra data covers only the central region of M31 as shown in the inset box for the image.
M31

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Galaxy Collision Switches on Black Hole

Dec
10

IC 4970 and NGC 6872

This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970 (roll your mouse over the image above). X-ray data from NASA's Chandra X-ray Observatory is shown in purple, while Spitzer Space Telescope's infrared data is red and optical data from ESO's Very Large Telescope (VLT) is colored red, green and blue.

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NASA's Great Observatories Examine the Galactic Center Region

Nov
10

Galactic Center

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 collaborated to produce an unprecedented image of the central region of our Milky Way galaxy.

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New Vista of Milky Way Center Unveiled

Sep
22

Galactic Center

A dramatic new vista of the center of the Milky Way galaxy from NASA's Chandra X-ray Observatory exposes new levels of the complexity and intrigue in the Galactic center. The mosaic of 88 Chandra pointings represents a freeze-frame of the spectacle of stellar evolution, from bright young stars to black holes, in a crowded, hostile environment dominated by a central, supermassive black hole.

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Wall Divides East and West Sides of Cosmic Metropolis

Jan
27

A new study unveils NGC 604, the largest region of star formation in the nearby galaxy M33, in its first deep, high-resolution view in X-rays. This composite image from Chandra X-ray Observatory data (colored blue), combined with optical light data from the Hubble Space Telescope (red and green), shows a divided neighborhood where some 200 hot, young, massive stars reside.

NGC 604

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A Pinwheel in X-rays

Nov
24

M101 Chandra X-ray

M101: A large spiral galaxy about 25 million light years away in the constellation Ursa Major. More at http://chandra.harvard.edu/photo/2008/m101/

Download the desktop: http://chandra.harvard.edu/resources/desktops_year.html?year=2008

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Huge Russian Dolls Surrounding a Galaxy

Nov
18

M84 Chandra Image

M84: A massive elliptical galaxy about 55 million light years away in the Virgo Cluster. More at http://chandra.harvard.edu/photo/2008/m84/

-Kim Arcand, CXC

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When Million-Degree Gas Is Safe

Jul
28

Last week, we put out a press release on an elliptical galaxy known as NGC 4649. Using Chandra data, a group of astronomers measured the temperature of the hot gas around the galaxy to come up with an independent way to measure the size of the gigantic black hole at the center. You can read more about the details in the press release.

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