J/ApJ/937/117       MaNGA sample of galaxies            (Fraser-McKelvie+, 2022)
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Beyond Galaxy Bimodality: The Complex Interplay between Kinematic Morphology
and Star Formation in the Local Universe.
    Fraser-McKelvie A., Cortese L.
   <Astrophys. J., 937, 117 (2022)>
   =2022ApJ...937..117F    (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxies, nearby ; Morphology
Keywords: Galaxy evolution - Galaxy kinematics - Galaxy structure -
          Galaxy quenching

Abstract:
    It is generally assumed that galaxies are a bimodal population in both
    star formation and structure; star-forming galaxies are disks, while
    passive galaxies host large bulges or are entirely spheroidal. Here we
    test this scenario by presenting a full census of the kinematic
    morphologies of a volume-limited sample of galaxies in the local
    universe extracted from the MaNGA galaxy survey. We measure the
    integrated stellar line-of-sight velocity to velocity dispersion ratio
    (V/sigma) for 4574 galaxies in the stellar mass range
    9.75<logM*[M_{sun}]<11.75. We show that at fixed stellar mass, the
    distribution of V/sigma is not bimodal, and that a simple separation
    between fast and slow rotators is oversimplistic. Fast rotators are a
    mixture of at least two populations, referred to here as dynamically
    cold disks and intermediate systems, with disks dominating in both
    total stellar mass and number. When considering star-forming and
    passive galaxies separately, the star-forming population is almost
    entirely made up of disks, while the passive population is mixed,
    implying an array of quenching mechanisms. Passive disks represent
    ~30% (both in number and mass) of passive galaxies, nearly a factor of
    two higher than that of slow rotators, reiterating that these are an
    important population for understanding galaxy quenching. These results
    paint a picture of a local universe dominated by disky galaxies, most
    of which become somewhat less rotation-supported upon or after
    quenching. While spheroids are present to a degree, they are certainly
    not the evolutionary end point for the majority of galaxies.

Description:
    This catalogue is the main catalogue created for this work, including
    the relevant MaNGA identifiers, derived kinematic parameters, and
    matches to stellar mass and star formation rate estimates from the
    GALEX-Sloan-WISE Legacy Survey (GSWLC; Salim et al.,
    2016ApJS..227....2S, 2018ApJ...859...11S)

File Summary:
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 FileName      Lrecl  Records   Explanations
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ReadMe            80        .   This file
sample.dat       235     4742   Main catalogue created for this work
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See also:
   https://salims.pages.iu.edu/gswlc : GALEX-SDSS-WISE Legacy Catalog Home Page

Byte-by-byte Description of file: sample.dat
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   Bytes Format Units     Label             Explanations
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   1- 11  A11   ---       plateifu          MaNGA plate-ifu identifier
                                             (NNNNN-NNNNN) (plateifu)
  13- 21  A9    ---       MaNGA             MaNGA ID (NN-NNNNNN) (mangaid)
  23- 44 F22.18 deg       RAdeg             MaNGA right ascension (J2000)
                                             (objra)
  46- 68 E23.15 deg       DEdeg             MaNGA declination (J2000) (objdec)
  70- 89 F20.18 ---       Obslr             Observed lambda_Re, stellar spin
                                             parameter within 1Re (uncorrected)
                                             (obs_lr)
  91-110 F20.18 ---       ObsVsig           Observed V/sigma uncorrected
                                             (obs_vsig)
 112-131 F20.18 ---       PSFCorrlr         lambda_Re, stellar spin parameter
                                             within 1Re, PSF-corrected
                                             (psfcorr_lr)
 133-152 F20.18 ---       PSFcorrVsig       V/sigma PSF-corrected (psfcorr_vsig)
 154-173 F20.18 ---       VsigPSFcorrDeproj V/sigma PSF-corrected and
                                             deprojected (vsig_psfcorr_deproj)
 175-194 F20.18 ---       lrPSFcorrDeproj   lambda_Re, stellar spin parameter
                                             within 1Re, PSF-corrected and
                                             deprojected (lamr_psfcorr_deproj)
 196-213 F18.15 [Msun]    logMstar          log stellar mass from GSWLC
                                             (logMstar) (1)
 215-235 F21.18 [Msun/yr] logSEDSFR         log SFR from GSWLC (logSEDSFR) (1)
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Note (1): From Salim et al., 2016ApJS..227....2S, 2018ApJ...859...11S.
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Acknowledgements:
     Amelia Fraser-McKelvie, a.fraser-mckelvie(at)uwa.edu.au

References:
     Salim et al., 2016ApJS..227....2S
     Salim et al., 2018ApJ...859...11S

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(End)                                      Patricia Vannier [CDS]    22-Mar-2023