Searching for Local Counterparts of High-redshift Poststarburst Galaxies in Integral Field Unit Spectroscopic Surveys of Nearby Galaxies

Searching in the MaNGA IFU survey, I identify nine galaxies that have strong Balmer absorption lines and weak nebular emission lines measured from the spectra integrated over the entire IFU. The spectral features measured from the bulk of the stellar light make these galaxies local analogs of high-r...

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Bibliographic Details
Published in:The Astrophysical journal 2021-05, Vol.913 (1), p.44
Main Author: Wu, Po-Feng
Format: Article
Language:English
Subjects:
Absorption
Analogs
Astronomical models
Astrophysics
Compact galaxies
Emission lines
Emission measurements
Emission spectra
Galaxies
Galaxy ages
Galaxy quenching
Galaxy stellar content
Line spectra
Optical astronomy
Polls & surveys
Post-starburst galaxies
Red shift
Searching
Star & galaxy formation
Star formation
Stars & galaxies
Stellar age
Stellar kinematics
Stellar models
Stellar populations
Velocity gradient
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Summary:Searching in the MaNGA IFU survey, I identify nine galaxies that have strong Balmer absorption lines and weak nebular emission lines measured from the spectra integrated over the entire IFU. The spectral features measured from the bulk of the stellar light make these galaxies local analogs of high-redshift spectroscopically selected poststarburst galaxies and thus proxies to understand the mechanisms producing poststarburst galaxies at high redshifts. I present the distributions of absorption line indices and emission line strengths, as well as the stellar kinematics of these local poststarburst galaxies. Almost all local poststarburst galaxies have central compact emission line regions at the central
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/abf493