Fichier:Sources in XMM-Newton’s second slew catalogue ESA377429.jpg
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Description
DescriptionSources in XMM-Newton’s second slew catalogue ESA377429.jpg |
English: This colourful, seemingly abstract artwork is actually a map depicting all the celestial objects that were detected in the XMM-Newton slew survey between August 2001 and December 2014. Orbiting Earth since 1999, XMM-Newton is studying high-energy phenomena in the Universe, such as black holes, neutron stars, pulsars and stellar winds. But even when moving between specific targets, the space telescope collects scientific data.
The map shows the 30 000 sources captured during 2114 of these slews. Because of overlapping slew paths, some sources have been observed up to 15 times, and 4924 sources have been observed twice or more. After correcting for overlaps between slews, 84% of the sky has been covered. The plot is colour-coded such that sources of a lower energy are red and those with a higher energy are blue. In addition, the brighter the source, the larger it appears on the map. The plot is in galactic coordinates such that the centre of the plot corresponds to the centre of the Milky Way. High-energy sources along the centre of the Milky Way include the famous black hole Cygnus X-1, and Vela X-1, a binary system comprising a neutron star consuming matter from a supergiant companion. Several star-and-black hole binary systems are also captured, including objects identified as GRS 1915+105, 4U 1630-47 and V 4641 Sgr. Two clusters of sources, one to the top left and one to the bottom right, correspond to the ecliptic poles. Objects above and below the plane of our Galaxy are predominantly external galaxies that are emitting X-rays from their massive black holes. |
Date | (released) |
Source | http://www.esa.int/spaceinimages/Images/2017/05/Sources_in_XMM-Newton_s_second_slew_catalogue |
Auteur | ESA/XMM-Newton/R. Saxton/A.M. Read, CC BY-SA 3.0 IGO |
Title InfoField | Sources in XMM-Newton’s second slew catalogue |
Set InfoField | Space Science image of the week |
Mission InfoField | XMM-Newton |
Activity InfoField | Space Science |
Conditions d’utilisation
This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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Ce fichier est soumis à la licence Creative Commons Attribution – Partage dans les Mêmes Conditions 3.0 IGO. Attribution: ESA/XMM-Newton/R. Saxton/A.M. Read, CC BY-SA IGO 3.0
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dépeint
15 mai 2017
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Date et heure | Vignette | Dimensions | Utilisateur | Commentaire | |
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actuel | 24 mai 2017 à 10:33 | 1 917 × 1 412 (3,9 Mio) | Fæ | European Space Agency, Id 377429, http://www.esa.int/spaceinimages/Images/2017/05/Sources_in_XMM-Newton_s_second_slew_catalogue, User:Fæ/Project_list/ESA |
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Métadonnées
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height | 1 412 |
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width | 1 917 |
Largeur | 2 100 px |
Hauteur | 1 500 px |
Composition des pixels | Séparé (probablement CMYK) |
Orientation | Normale |
Nombre de composantes | 4 |
Résolution horizontale | 300 pt/po |
Résolution verticale | 300 pt/po |
Logiciel utilisé | Adobe Photoshop CC 2017 (Macintosh) |
Date de modification du fichier | 15 mai 2017 à 09:13 |
Version d’EXIF | 2.21 |
Espace colorimétrique | Non calibré |
Date et heure de la numérisation | 25 avril 2017 à 15:31 |
Date de la dernière modification des métadonnées | 15 mai 2017 à 11:13 |
Identifiant unique du document original | xmp.did:f15868da-17e2-4d2f-922a-ac5fff37be6e |