| Autor: |
Ada Nebot Gómez-Morán, Christian Motch |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Acta Polytechnica CTU Proceedings, Vol 1, Iss 1, Pp 123-126 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
2336-5382 |
| DOI: |
10.14311/APP.2014.01.0123 |
| Popis: |
We present an X-ray survey of the Galactic Plane conducted by the Survey Science Centre of the XMM-Newton satellite. The survey contains more than 1300 X-ray detections at low and intermediate Galactic latitudes and covering 4 deg2 well spread in Galactic longitude. From a multi-wavelength analysis, using optical spectra and helped by optical and infrared photometry we identify and classify about a fourth of the sources. The observed surface density of soft X-ray (2 keV) the surface density of sources presents an excess with respect to the expected extragalactic contribution. This excess highly concentrates towards the direction of the Galactic Centre and is compatible with previous results from Chandra observations around the Galactic Centre. The nature of these sources is still unknown. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
