Vacuum ultraviolet imagery of the Virgo cluster region

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167588· OSTI ID:5509284

Onaka, T; Tanaka, W; Watanabe, T; Watanabe, J; Yamaguchi, A ^[1]

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1. Tokyo Univ. (Japan)

The results are reported of an experiment using the UV imager aboard an attitude-controlled S520 type sounding rocket. The total UV fluxes of galaxies in the Virgo Cluster as well as the flux level of the diffuse UV background around the cluster were measured. The data on NGC 4486 and NGC 4472 confirm the variation in the degree of the 'turnup' below 200 nm in the energy spectrum of the total light of elliptical galaxies. At two-color diagram of galaxies of visual/near-UV/vacuum UV indicates that colors of spiral galaxies are distributed within a strip and well-correlated with the morphological type, while elliptical galaxies are located differently from spiral galaxies. 51 refs.

• OSTI ID: 5509284
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 342; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
COLOR
CONFIGURATION
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
ENERGY SPECTRA
GALAXIES
GALAXY CLUSTERS
IMAGES
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
RADIATION FLUX
RADIATIONS
RED SHIFT
ROCKETS
SPECTRA
SPECTROSCOPY
SPIRAL CONFIGURATION
ULTRAVIOLET RADIATION
VARIATIONS