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19 papers · 2 filters
The Aquarius Superclusters - I. Identification of Clusters and Superclusters
Cesar A. Caretta, Marcio A. G. Maia, Wataru Kawasaki +1
We study the distribution of galaxies and galaxy clusters in a 10^deg x 6^deg field in the Aquarius region. In addition to 63 clusters in the literature, we have found 39 new candi…
The tidal effects on the lithium abundance of binary systems with giant component
J. M. Costa, L. da Silva, J. D. do Nascimento +1
We analise the behavior of lithium abundance as a function of effective temperature, projected rotational velocity, orbital period and eccentricity for a sample of 68 binary system…
The Spectral Energy Distribution of the Seyfert galaxy Ton S180
T. J. Turner, P. Romano, S. B. Kraemer +14
We present spectral results from a multi-satellite, broad-band campaign on the Narrow-line Seyfert 1 galaxy Ton S180 performed at the end of 1999. We discuss the spectral-energy di…
Environmental effects in galaxies: Molecular Gas, Star Formation, and Activity
Duilia F. de Mello, Tommy Wiklind, Marcio A. G. Maia
In order to study whether there is any correlation between nuclear activities, gas content, and the environment where galaxies reside, we have obtained optical and millimetric spec…
Environmental Effects in Galaxies: The Data
Duilia F. de Mello, Marcio A. G. Maia, Tommy Wiklind
We present optical and millimetric data for 47 intermediate Hubble type spiral galaxies located either in dense environments or in the field. We compare correlations between global…
Pre-FLAMES Survey: Observations of Selected Stellar Fields
Y. Momany, B. Vandame, S. Zaggia +9
This paper presents the first set of fully calibrated images and associated stellar catalogs of the Pre-FLAMES survey being carried out by the ESO Imaging Survey (EIS) project. The…