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KINEMATIC SIGNATURES OF BULGES CORRELATE WITH BULGE MORPHOLOGIES AND SÉRSIC INDEX

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posted on 2024-07-09, 13:35 authored by Maximilian H. Fabricius, Roberto P. Saglia, Deanne FisherDeanne Fisher, Niv Drory, Ralf Bender, Ulrich Hopp
We use the Marcario Low Resolution Spectrograph at the Hobby-Eberly Telescope to study the kinematics of pseudobulges and classical bulges in the nearby universe. We present major axis rotational velocities, velocity dispersions, and h 3 and h 4 moments derived from high-resolution (σinst 39kms-1) spectra for 45 S0 to Sc galaxies; for 27 of the galaxies we also present minor axis data. We combine our kinematics with bulge-to-disk decompositions. We demonstrate for the first time that purely kinematic diagnostics of the bulge dichotomy agree systematically with those based on S

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ISSN

0004-637X

Journal title

The Astrophysical Journal

Volume

754

Issue

1

Article number

article no. 67

Pagination

1 p

Publisher

Institute of Physics Publishing, Inc.

Copyright statement

Copyright © 2012 The American Astronomical Society. All rights reserved. The published version is reproduced here in accordance with the copyright policy of the publisher and can be also be located at https://doi.org/10.1088/0004-637X/754/1/67.

Language

eng

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