CANDELS & KINGFISH disk-dominated galaxies Virtual Observatory Resource

Authors
  1. Doore K.
  2. Eufrasio R.T.
  3. Lehmer B.D.
  4. Monson E.B.
  5. Basu-Zych A.,Garofali K.
  6. Published by
    CDS
Abstract

We examine and quantify how hybrid (e.g., UV+IR) star formation rate (SFR) estimators and the A_FUV_-{beta} relation depend on inclination for disk-dominated galaxies using spectral energy distribution modeling that utilizes the inclination-dependent attenuation curves described in Doore+ (2021ApJ...923...26D). We perform this analysis on a sample of 133 disk-dominated galaxies from the CANDELS fields and 18 disk galaxies from the Spitzer Infrared Nearby Galaxies Survey and Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel samples. We find that both the hybrid SFR estimators and the A_FUV_-{beta} relation present clear dependencies on inclination. To quantify this dependence in the hybrid SFR estimators, we derive an inclination and a far-UV-near-IR color-dependent parametric relation for converting observed UV and IR luminosities into SFRs. For the A_FUV_-{beta} relation, we introduce an inclination-dependent component that accounts for the majority of the inclination dependence with the scatter of the relation increasing with inclination. We then compare both of these inclination-dependent relations to similar inclination-independent relations found in the literature. From this comparison, we find that the UV+IR correction factor and A_FUV_ for our hybrid and A_FUV_-{beta} relations, respectively, result in a reduction in the residual scatter of our sample by approximately a factor of 2. Therefore, we demonstrate that inclination must be considered in hybrid SFR estimators and the A_FUV_-{beta} relation to produce more accurate SFR estimates in disk-dominated galaxies.

Keywords
  1. galaxies
  2. galaxy-classification-systems
  3. redshifted
  4. ultraviolet-astronomy
  5. infrared-sources
  6. spectral-energy-distribution
Bibliographic source Bibcode
2022ApJ...931...53D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/931/53
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/931/53
Document Object Identifer DOI
doi:10.26093/cds/vizier.19310053

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History

2024-05-07T13:32:13Z
Resource record created
2024-05-07T13:32:13Z
Created
2024-09-18T20:16:07Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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