1,720,992 research outputs found
AGN hosts and environment
No full textWe summarize the most recent results of observations and investigations concerning the host galaxies and the environment of Quasars and Seyfert galaxies. The results show that most of Radio Loud Quasars (RLQ) and Radio Quiet Quasars (RQQ) belong to interacting systems, confirming the expectation that most RLQ are in elliptical galaxies, while contradict the conventional wisdom that RQQ occur in spiral galaxies.
Starburst galaxies show strong evidence that they are interacting or merging systems, while for what concerns Seyfert galaxies, the situation is not so clear as for starburst galaxies, mainly because of the criteria used to define the samples
The UV properties of normal galaxies. III. Standard luminosity profiles and total magnitudes.
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The integral field spectroscopy (IFS) as a tool for investigating the nature of active galactic nuclei
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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