Contingut
Imatges
Carregar la teva Imatge
DSS Images Other Images
Articles Relacionats
The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources. I - The Bright Source Catalogue
First comprehensive results from an initial processing of the ROSAT WideField Camera all-sky survey for cosmic sources of extreme-ultravioletradiation are presented. The reduction of the survey data has yielded acatalog of 383 relatively bright EUV sources, forming the WFC BrightSource Catalogue. Details of the EUV source positions and count ratesare given, as are optical identifications where known. It is found thatthe log N-log S distributions are unusually flat for the white dwarfstars, but almost Euclidean for the nearby main-sequence late-typestars. The sky distribution of identified white dwarfs is highlynonuniform, suggesting gross variations in the opacity of theinterstellar medium within about 100 pc.
|
Enviar un nou article
Enllaços Relacionats
- - No s'ha trobat enllaços -
Enviar un nou enllaç
Membre dels grups següents:
|
Dades d'Observació i Astrometria
| Constel·lació: | Puppis |
| Ascensió Recta: | 08h25m12.72s |
| Declinació: | -34°23'51.1" |
| Magnitud Aparent: | 8.943 |
| Distancia: | 331.126 parsecs |
| Moviment propi RA: | -6.1 |
| Moviment propi Dec: | 10 |
| B-T magnitude: | 8.913 |
| V-T magnitude: | 8.941 |
Catàlegs i designacions:
|
