The Seyfert galaxy NGC4258
Minimum credit line: Image courtesy of W. Pietsch, MPE Garching, Germany and ESA. (for details, see Conditions of Use).
Credit: ESA/XMM-Newton, CC BY-SA 3.0 IGO
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| About this Image |
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Logarithmically-scaled, three-color XMM-Newton EPIC PN image of the NGC 4258 disk and nuclear regions.
Investigator(s): W. Pietsch and A. M. Read
| For More Information |
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- Read the Journal article
- Detailed description of this image
- Query XSA archive for XMM-Newton data in the field of NGC 4258
- Astronomical database entries for NGC 4258;
- Query NED for more images about NGC 4258
- Query SIMBAD for more NGC 4258 data
- For unfamiliar terms, visit the XMM-Newton Astronomical Glossary
| Instrument | EPIC | ||
| Observing Mode | Full Frame | ||
| Filter | Thin | ||
| Date of Observation | 2001-11-13 | ||
| Image size | 26.00 x 26.00 arcmin | ||
| Detailed Caption | Red, green and blue show respectively the ROSAT-equivalent (0.2-0.5) keV, (0.5-0.9) keV and (0.9-2.0) keV bands, while the hard (2-10) keV emission is shown superimposed as black/white contours. The data in each energy band have been smoothed with a PSF-equivalent Gaussian. The inclination-corrected optical D25 ellipse is marked as well. The XMM-Newton observations of the Seyfert 1.9 galaxy NGC 4258 show a hard nuclear point source with a spectrum that can be modeled by a highly absorbed power-law. XMM-Newton shows also emission from the extranuclear point sources as well as from the diffuse emission from the "anomalous" arms and the interstellar medium in the disk and halo of this galaxy. | ||
| Alternate Resolutions | (Help) |
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