Spiral Galaxies in the SAURON Survey
Reynier F. Peletier (1), Katia Ganda (1), Jesus Falcon-Barroso (2),, Roland Bacon (3), Michele Cappellari (4), Roger L. Davies (4), P. Tim de, Zeeuw (5,6), Eric Emsellem (3), Davor Krajnovic (4), Harald Kuntschner (6),, Richard M. McDermid (5), Marc Sarzi (7)
TL;DR
This paper presents integral field spectroscopy data from the SAURON survey of 42 spiral galaxies, providing insights into their stellar kinematics and bulge formation processes.
Contribution
It offers new 2D spectroscopic maps of spiral galaxies, enhancing understanding of bulge properties and proposing novel ideas on their formation.
Findings
Detailed stellar velocity and dispersion maps for spirals
Insights into bulge formation mechanisms
New hypotheses on galaxy bulge evolution
Abstract
We discuss some recent integral field spectroscopy using the SAURON instrument of a sample consisting of 24 early-type spirals, part of the SAURON Survey, and 18 late-type spirals. Using 2-dimensional maps of their stellar radial velocity, velocity dispersion, and absorption line strength, it is now much easier to understand the nature of nearby galactic bulges. We discuss a few highlights of this work, and point out some new ideas about the formation of galactic bulges.
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