J/MNRAS/506/3079 Halpha and other SFR indicators (Kouroumpatzakis+, 2021)
The Star Formation Reference Survey.
V. The effect of extinction, stellar mass, metallicity, and nuclear activity on
star-formation rates based on H α emission.
Kouroumpatzakis K., Zezas A., Maragkoudakis A., Willner S.P., Bonfini P.,
Ashby M.L.N., Sell P.H., Jarrett T.H.
<Mon. Not. R. Astron. Soc., 506, 3079-3097 (2021)>
=2021MNRAS.506.3079K 2021MNRAS.506.3079K (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Galaxies, photometry ; Photometry, H-alpha ;
Abundances
Keywords: ISM: abundances - dust, extinction - galaxies: ISM -
galaxies: photometry - galaxies: star formation
Abstract:
We present new Hα photometry for the Star Formation Reference
Survey (SFRS), a representative sample of star-forming galaxies in the
local Universe. Combining these data with the panchromatic coverage of
the SFRS, we provide calibrations of Hα-based star-formation
rates (SFRs) with and without correction for the contribution of [NII]
emission. We consider the effect of extinction corrections based on
the Balmer decrement, infrared excess, and spectral energy
distribution (SED) fits. We compare the SFR estimates derived from SED
fits, polycyclic aromatic hydrocarbons, hybrid indicators such as
24um+Hα, 8um+Hα, FIR+FUV, and Hα emission for a
sample of purely star-forming galaxies. We provide a new calibration
for 1.4GHz-based SFRs by comparing to the Hα emission, and we
measure a dependence of the radio-to-Hα emission ratio based on
galaxy stellar mass. Active galactic nuclei introduce biases in the
calibrations of different SFR indicators but have only a minimal
effect on the inferred SFR densities from galaxy surveys. Finally, we
quantify the correlation between galaxy metallicity and extinction.
Description:
Table A1 presents the general properties of the SFRS galaxies along
with the H-alpha photometry, extinctions, metallicities, [NII]/H-alpha
emission ratios, and SFRs based on H-alpha, PAHs 8um, and 24um
emission.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 206 369 SFRs, photometry, metallicity, extinction and
class
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See also:
J/PASP/123/1011 : Star Formation Reference Survey (SFRS) (Ashby+, 2011)
J/MNRAS/482/560 : Star formation in nearby galaxies (Mahajan+, 2019)
J/MNRAS/504/3831 : Stellar mass distribution of local star-forming galaxies
(Bonfini+, 2021)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- SFRS [1/369] SFRS ID
5- 26 A22 --- Name Common galaxy name
28- 29 I2 h RAh Right ascension (J2000)
31- 32 I2 min RAm Right ascension (J2000)
34- 39 F6.3 s RAs Right ascension (J2000)
41 A1 --- DE- Declination sign (J2000)
42- 43 I2 deg DEd Declination (J2000)
45- 46 I2 arcmin DEm Declination (J2000)
48- 52 F5.2 arcsec DEs Declination (J2000)
55- 57 A3 --- Class Bpt classification by Maragkoudakis et
al. (2018MNRAS.475.1485M 2018MNRAS.475.1485M) (1)
59- 64 F6.1 Mpc Dist Distance (Mpc) from Ashby et al. (2011)
66- 72 F7.3 [mW/m2] logFHa+NII ?=- Hα+[NII] flux (erg/s/cm2)
74- 78 F5.3 [mW/m2] e_logFHa+NII ?=- Hα+[NII] flux 68% uncertainty
(erg/s/cm2)
80- 86 F7.3 mJy FW1 ?=- Flux in WISE-1 band
88- 94 F7.3 mJy FW2 ?=- Flux in WISE-2 band
96-103 F8.3 mJy FW3 ?=- Flux in WISE-3 band
105-113 F9.3 mJy FW4 ?=- Flux in WISE-4 band
115-120 F6.3 mag E(B-V)balnuc ?=- E(B-V) Balmer, nuclear presented by
Maragkoudakis et al.
(2018MNRAS.475.1485M 2018MNRAS.475.1485M)
122-126 F5.3 mag E(B-V)bal ?=- E(B-V) Balmer calculated as described
in Section 4.2 of the paper
128-132 F5.3 mag E(B-V)IRX ?=- E(B-V) IRX presented by Mahajan et
al. (2019MNRAS.482..560M 2019MNRAS.482..560M)
134-138 F5.3 mag E(B-V)SED ?=- E(B-V) SED from Maragkoudakis et al.
in prep
140-145 F6.3 --- logFNII/Ha ?=- [NII]/Hα flux ratio presented
by Maragkoudakis et al.
(2018MNRAS.475.1485M 2018MNRAS.475.1485M)
147-151 F5.3 --- Mtlnuc ?=- 12+log(O/H) nucleus presented by
Maragkoudakis et al.
(2018MNRAS.475.1485M 2018MNRAS.475.1485M)
153-157 F5.3 --- Mtlhost ?=- 12+log(O/H) host presented by
Maragkoudakis et al.
(2018MNRAS.475.1485M 2018MNRAS.475.1485M)
159-164 F6.3 [Msun/yr] logSFRHa ?=- log SFR Hα (2)
166-171 F6.3 [Msun/yr] logSFRtot ?=- log SFR tot presented by Mahajan et
al. (2019MNRAS.482..560M 2019MNRAS.482..560M)
173-178 F6.3 [Msun/yr] logSFRSED ?=- log SFR SED from Maragkoudakis et al.
in prep
180-185 F6.3 [Msun/yr] logSFR24um log SFR 24um
187-192 F6.3 [Msun/yr] logSFR24umHa ?=- log SFR 24um+Hα (3)
194-199 F6.3 [Msun/yr] logSFR8umHa ?=- log SFR PAH 8um+Hα (3)
201-206 F6.3 [Msun] logMstar ?=- Stellar mass presented by
Maragkoudakis et al.
(2017MNRAS.466.1192M 2017MNRAS.466.1192M)
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Note (1): Bpt classification as follows:
HII = star-forming
Sy = Seyfert,
TO = transition object (composite)
LNR = LINER galaxy
Note (2): Hα flux is corrected for the [NII] contribution and extinction
based on Balmer decrement (E(B-V)balnuc; as described in Section 4.2 of the
paper)
Note (3): Hα flux is corrected for the [N II] contribution.
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Acknowledgements:
Konstantinos Kouroumpatzakis, kkouroub(at)physics.uoc.gr
References:
Ashby et al., Paper I 2011PASP..123.1011A 2011PASP..123.1011A, Cat. J/PASP/123/1011
Maragkoudakis et al., Paper II 2018MNRAS.475.1485M 2018MNRAS.475.1485M
Mahajan et al., Paper III 2019MNRAS.482..560M 2019MNRAS.482..560M, J/MNRAS/482/560
Bonfini et al., Paper IV 2021MNRAS.504.3831B 2021MNRAS.504.3831B, J/MNRAS/506/3079
(End) Patricia Vannier [CDS] 18-Jan-2022