J/MNRAS/469/2121 Mass-metallicity relation revisited with CALIFA (Sanchez+ 2017)
The mass-metallicity relation revisited with CALIFA.
Sanchez S.F., Barrera-Ballesteros J.K., Sanchez-Menguiano L., Walcher C.J.,
Marino R.A., Galbany L., Bland-Hawthorn J., Cano-Diaz M., Garcia-Benito R.,
Lopez-Coba C., Zibetti S., Vilchez J.M., Iglesias-Paramo J., Kehrig C.,
Lopez Sanchez A.R., Duarte Puertas S., Ziegler B.
<Mon. Not. R. Astron. Soc., 469, 2121-2140 (2017)>
=2017MNRAS.469.2121S 2017MNRAS.469.2121S (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Abundances
Keywords: techniques: spectroscopic - galaxies: abundances -
galaxies: evolution - galaxies: ISM
Abstract:
We present an updated version of the mass-metallicity (MZ) relation
using integral field spectroscopy data obtained from 734 galaxies
observed by the CALIFA survey. These unparalleled spatially resolved
spectroscopic data allow us to determine the metallicity at the same
physical scale (Re) for different calibrators. We obtain MZ
relations with similar shapes for all calibrators, once the
scalefactors among them are taken into account. We do not find any
significant secondary relation of the MZ relation with either the star
formation rate (SFR) or the specific SFR for any of the calibrators
used in this study, based on the analysis of the residuals of the
best-fitted relation. However, we do see a hint for an
(s)SFR-dependent deviation of the MZ relation at low masses
(M<109.5M☉), where our sample is not complete. We are thus
unable to confirm the results by Mannucci et al. (2010), although we
cannot exclude that this result is due to the differences in the
analysed data sets. In contrast, our results are inconsistent with the
results by Lara-Lopez et al. (2010), and we can exclude the presence
of an SFR-mass-oxygen abundance fundamental plane. These results agree
with previous findings suggesting that either (1) the secondary
relation with the SFR could be induced by an aperture effect in single
fibre/aperture spectroscopic surveys, (2) it could be related to a
local effect confined to the central regions of galaxies or (3) it is
just restricted to the low-mass regime, or a combination of the three
effects.
Description:
The analysed sample comprises all the galaxies with good quality
spectroscopic data observed with the low resolution setup (V500) by
the CALIFA survey (Sanchez et al., 2012A&A...538A...8S 2012A&A...538A...8S) and by a
number of CALIFA-extensions listed in Sanchez et al. (2016, Cat.
J/A+A/594/A36) up to 2016 October 9. It includes the 667 galaxies from
the 3rd CALIFA Data Release (Sanchez et al. 2016, Cat. J/A+A/594/A36),
and in addition we include those galaxies with good quality data
excluded from DR3 because either they did not have SDSS-DR7 imaging
data (a primary selection for DR3) or they were observed after the
final sample was closed (i.e. after 2015 November). The final sample
comprises a total of 734 galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 73 11 Fitting parameters for the MZ relation and its
scatter for the set of abundance calibrators
used in this study
tableb1.dat 518 734 Stellar Masses, star formation rates and
characteristics abundances for the all the
considered calibrators
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See also:
J/A+A/594/A36 : CALIFA Survey DR3 list of galaxies (Sanchez+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Ind Metallicity indicator
11- 15 F5.3 --- sigma(O/H) Original distribution of the
oxygen abundance
17- 20 F4.2 --- a Parameter a from the fitting of equation (1)
to the MZ relation (1)
22- 25 F4.2 --- e_a Error on a
27- 31 F5.3 --- b Parameter b from the fitting of equation (1)
to the MZ relation (1)
33- 37 F5.3 --- e_b Error on b
39- 43 F5.3 --- sigmaMZres Standard deviation of the residuals after
subtracting the best fit to the MZ relation
45- 49 F5.2 --- alpha Linear fitting of the residuals of the MZ
relation with respect to the SFR alpha
(zero-point) parameter (see Section 4.2)
51- 54 F4.2 --- e_alpha Error on alpha
56- 61 F6.3 --- beta Linear fitting of the residuals of the MZ
relation with respect to the SFR
beta (slope) parameter (see Section 4.2)
63- 67 F5.3 --- e_beta Error on beta
69- 73 F5.3 --- sigmaDMZres Standard deviation of the residuals of the
linear fitting using the above parameters
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Note (1): Equation (1): y=a+b(x-c)exp[-(x-c)]
where y=12+log(O/H) and x=log(M*/M☉)-8.0
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- Name Galaxy name (CALIFA name)
25- 41 F17.14 [Msun] logMass logarithm of the stellar mass
43- 60 F18.16 [Msun] e_logMass Error of logarithm of the stellar mass
62- 81 F20.17 [Msun/yr] logSFR logarithm of the stellar star formation
83-100 E18.13 [Msun/yr] e_logSFR ? Error of logarithm of the stellar
star formation
101 A1 --- nelogSFR [i] i for infinity
102-117 E16.10 --- O3N2-M13 ? 12+log(O/H) with O3N2-M13 calibration
118 A1 --- n_O3N2-M13 [i] i for infinity
120-137 F18.16 --- e_O3N2-M13 ? Error in 12+log(O/H) with O3N2-M13
calibration
138 A1 --- neO3N2-M13 [i] i for infinity
140-155 F16.14 --- N2-M13 ? 12+log(O/H) with N2-M13 calibration
156 A1 --- n_N2-M13 [i] i for infinity
158-175 F18.16 --- e_N2-M13 ? Error in 12+log(O/H) with N2-M13
calibration
176 A1 --- neN2-M13 [i] i for infinity
178-193 E16.10 --- ONS-M13 ? 12+log(O/H) with ONS-M13 calibration
194 A1 --- n_ONS-M13 [i] i for infinity
196-213 F18.16 --- e_ONS-M13 ? Error in 12+log(O/H) with ONS-M13
calibration
214 A1 --- neONS-M13 [i] i for infinity
216-231 F16.14 --- R23 ? 12+log(O/H) with R23 own calibration
232 A1 --- n_R23 [i] i for infinity
234-251 F18.16 --- e_R23 ? Error in 12+log(O/H) with
R23 own calibration
252 A1 --- neR23 [i] i for infinity
254-269 F16.14 --- O3N2-PP04 ? 12+log(O/H) with O3N2-PP04 calibration
270 A1 --- n_O3N2-PP04 [i] i for infinity
272-289 F18.16 --- e_O3N2-PP04 ? Error in 12+log(O/H) with O3N2-PP04
calibration
290 A1 --- neO3N2-PP04 [i] i for infinity
292-307 F16.14 --- pyqz ? 12+log(O/H) with pyqz calibration
308 A1 --- n_pyqz [i] i for infinity
310-327 F18.16 --- e_pyqz ? Error in 12+log(O/H) with pyqz
calibration
328 A1 --- nepyqz [i] i for infinity
330-345 F16.14 --- t2 ? 12+log(O/H) with t2 calibration
346 A1 --- n_t2 [i] i for infinity
348-365 F18.16 --- e_t2 ? Error in 12+log(O/H) with t2
calibration
366 A1 --- net2 [i] i for infinity
368-383 F16.14 --- M08 ? 12+log(O/H) with M08 calibration
384 A1 --- n_M08 [i] i for infinity
386-403 F18.16 --- e_M08 ? Error in 12+log(O/H) with M08
calibration
404 A1 --- neM08 [i] i for infinity
406-421 F16.14 --- T04 ? 12+log(O/H) with T04 calibration
422 A1 --- n_T04 [i] i for infinity
424-441 F18.16 --- e_T04 ? Error in 12+log(O/H) with T04
calibration
442 A1 --- neT04 [i] i for infinity
444-459 F16.14 --- DOP ? 12+log(O/H) with DOP calibration
460 A1 --- n_DOP [i] i for infinity
462-479 F18.16 --- e_DOP ? Error in 12+log(O/H) with DOP
calibration
480 A1 --- neDOP [i] i for infinity
482-497 F16.14 --- EPM ? 12+log(O/H) with EPM calibration
498 A1 --- n_EPM [i] i for infinity
500-517 F18.16 --- e_EPM ? Error in 12+log(O/H) with EPM
calibration
518 A1 --- neEPM [i] i for infinity
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Apr-2020