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Vacuum ultraviolet imagery of the Virgo cluster region The results are reported of an experiment using the UV imager aboard anattitude-controlled S520 type sounding rocket. The total UV fluxes ofgalaxies in the Virgo Cluster as well as the flux level of the diffuseUV background around the cluster were measured. The data on NGC 4486 andNGC 4472 confirm the variation in the degree of the 'turnup' below 200nm in the energy spectrum of the total light of elliptical galaxies. Attwo-color diagram of galaxies of visual/near-UV/vacuum UV indicates thatcolors of spiral galaxies are distributed within a strip andwell-correlated with the morphological type, while elliptical galaxiesare located differently from spiral galaxies.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
Costellazione: | Vergine |
Ascensione retta: | 11h42m49.93s |
Declinazione: | -03°32'42.4" |
Magnitudine apparente: | 7.534 |
Distanza: | 139.86 parsec |
Moto proprio RA: | -85 |
Moto proprio Dec: | -38.1 |
B-T magnitude: | 7.525 |
V-T magnitude: | 7.534 |
Cataloghi e designazioni:
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