Research & Science Home ESA Public Web Site Sci-Tech Portal      XMM-Newton Public Web Site XMM-Newton Sci-Tech Portal
Astrophysics Missions Planetary Exploration Missions Solar Terrestrial Science Missions Fundamental Physics Missions Science Faculty

XMM-Newton Image Gallery


 Go to the Gallery Home Page

 XMM-Newton Home > Gallery Home > Galaxies > Normal Galaxies > NGC 4634

The X-ray Halo of NGC 4634

Image
Minimum credit line: Image courtesy of R. Tuellmann, AIRUB, Germany and ESA. (for details, see Conditions of Use).

The image above can be displayed at full size and may be downloaded by clicking the image above.

About this Image

This three colour XMM-Newton image of NGC 4634 was created from merged EPIC pn and MOS images. Red, green, and blue represent emission in the (0.2-1.0) keV, (1.0-2.0) keV, and (2.0-4.5) keV energy bands, respectively. The ellipse indicates the outer border of the Halpha emitting disk. Besides NGC 891, NGC 4634 is the second non-starburst late type spiral galaxy with a prominent diffuse soft X-ray halo. In addition to a hot corona, this galaxy also possesses a cosmic ray and a diffuse ionized gas halo. There are strong indications that these multi-phase gaseous halos are triggered by star formation related processes in the disk plane. The images have been smoothed using a gaussian filter with a FWHM of 30 arcsec. All results are published in a preprint by R. Tuellmann et al. (2005, astro-ph/0510079).

Investigator(s):  R. Tuellmann, W. Pietsch, J. Rossa, D. Breitschwerdt, R.-J. Dettmar

For More Information

Alternate Resolutions (Help)

This image is available in the following downloadable versions: Higher resolution versions of this image may be available, please contact the XMM-Newton HelpDesk.



Search the Image Gallery

To search the Image Gallery for a particular object, fill in the object name in the box below and click the Submit button.
Object Name Show Results As:  
To search the Image Gallery for other images, fill in any of the fields below and click the Submit button.
Category Sub-Category Instrument Show Results As:
For more search options, please use our Advanced Search form.


XMM-Newton; Europe's X-Ray Observatory
Last update: 09-Oct-2013 by