About this Image

Mosaic of EPIC pn and MOS pointings covering M31: All medium (+thin) filter pn and MOS observations with low background have been merged. The color coding is such that red displays X-ray photons received in the energy band 0.2-1 keV, green in the 1-2 keV band and blue in the 2-12 keV band. Images have been smoothed with a Gaussian of FWHM of 20 arcsec. The image scale and the optical D25 ellipse of M31 are marked. Shown in detail to the upper right is a factor three zoom-in to the bulge area using images binned to 1 arcsec and smoothed with a Gaussian FWHM of 5 arcsec corresponding to the point-spread function in the center of the field of view.

For More Information

• Read the Journal article
• Detailed description of this image
• Query XSA archive for XMM-Newton data in the field of M 31
• Astronomical database entries for M 31;
• Query NED for more images about M 31
• Query SIMBAD for more M 31 data
• For unfamiliar terms, visit the XMM-Newton Astronomical Glossary

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