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23 papers · 2 filters
Experimental Search for Solar Axions
A. O. Gattone, D. Abriola, F. T. Avignone +16
A new technique has been used to search for solar axions using a single crystal germanium detector. It exploits the coherent conversion of axions into photons when their angle of i…
Starbursts in Barred Spiral Galaxies. III. Definition of a homogeneous sample of Starburst Nucleus Galaxies
T. Contini, S. Considere, E. Davoust
This paper presents optical long-slit spectroscopic observations of 105 barred Markarian IRAS galaxies. These observations are used to determine the spectral type of emission-line…
What Powers Ultra-luminous IRAS Galaxies?
R. Genzel, D. Lutz, E. Sturm +9
We present an ISO SWS and ISOPHOT-S, mid-infrared spectroscopic survey of 15 ultra-luminous IRAS galaxies. We combine the survey results with a detailed case study, based on near-I…
Understanding the Cool DA White Dwarf, G29-38
S. J. Kleinman, R. E. Nather, D. E. Winget +37
The white dwarfs are promising laboratories for the study of cosmochronology and stellar evolution. Through observations of the pulsating white dwarfs, we can measure their interna…
VCC 144 - a star-bursting dwarf galaxy in the Virgo Cluster
N. Brosch, E. Almoznino, L. Hoffman
We describe results of a multi-spectral study of a blue compact dwarf galaxy in Virgo. The object was observed with broad-band and H imaging, UV observations, and radio synthesi…
The Ultraviolet Spectra of LINERs: A Comparative Study
Dan Maoz, Anuradha Koratkar, Joseph C. Shields +3
Imaging studies have shown that about 25% of LINER galaxies display a compact nuclear UV source. As part of a program to study the nature of LINERs and their connection to the acti…