NGC 3627, Spiral Galaxy, X-Ray
The spiral galaxy NGC 3627 is located about 30 million light years from Earth. A search using archival data from previous Chandra observations of a sample of 62 nearby galaxies has shown that 37 of the galaxies, including NGC 3627, contain X-ray sources in their centers. Most of these sources are likely powered by central supermassive black holes. The survey, which also used data from the Spitzer Infrared Nearby Galaxy Survey, found that seven of the 37 sources are new supermassive black hole candidates. This study finds the fraction of galaxies found to be hosting supermassive black holes is much higher than found with optical searches. This shows the ability of X-ray observations to find black holes in galaxies where relatively low-level black hole activity has either been hidden by obscuring material or washed out by the bright optical light of the galaxy. Release date December 13, 2012.
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Keywords: -ray, 66, 2012, 21st, 3627, acis, advanced, astronomical, astronomy, body, ccd, celestial, century, chandra, cxc, deep, detection, emission, galaxies, galaxy, heavenly, image, imaging, intermediate, m66, messier, ngc, object, observation, observatory, science, sky, space, spectrometer, spiral
