2016MNRAS.458.1529B

Query : 2016MNRAS.458.1529B

2016MNRAS.458.1529B - Mon. Not. R. Astron. Soc., 458, 1529-1547 (2016/May-2)

A recalibration of strong-line oxygen abundance diagnostics via the direct method and implications for the high-redshift universe.

BROWN J.S., MARTINI P. and ANDREWS B.H.

Abstract (from CDS):

We use direct method oxygen abundances in combination with strong optical emission lines, stellar masses (M_*), and star formation rates (SFRs) to recalibrate the N2, O3N2, and N2O2 oxygen abundance diagnostics. We stack spectra of ∼200 000 star-forming galaxies from the Sloan Digital Sky Survey in bins of M_* and SFR offset from the star-forming main sequence () to measure the weak emission lines needed to apply the direct method. All three new calibrations are reliable to within ±0.10 dex from log (M_*/M_☉) ∼ 7.5-10.5 and up to at least 200 M_☉/yr in SFR. The N2O2 diagnostic is the least subject to systematic biases. We apply the diagnostics to galaxies in the local Universe and investigate the M_*-Z-SFR relation. The N2 and O3N2 diagnostics suggest the SFR dependence of the M_*-Z-SFR relation varies with both M_* and , whereas the N2O2 diagnostic suggests a nearly constant dependence on SFR. We apply our calibrations to a sample of high-redshift galaxies from the literature, and find them to be metal-poor relative to local galaxies with similar M_* and SFR. The calibrations do reproduce direct method abundances of the local analogues. We conclude that the M_*-Z-SFR relation evolves with redshift.

Journal keyword(s): ISM: abundances - galaxies: abundances - galaxies: active - galaxies: evolution - galaxies: ISM

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	NAME Leo P	BiC	10 21 45.123	+18 05 16.89						~	268	0

Query : 2016MNRAS.458.1529B

Basic data :

NAME Leo P -- Brightest Galaxy in a Cluster (BCG)

G (2014AJ,AGC), BiC (2011ApJ), GiG (SDSSCGB), HI (2013AJ), Opt (SDSS)

10 21 45.123 +18 05 16.89 (Optical) [ 4000 74 90 ] C 2009ApJS..182..543A

10 19 02.120 +18 20 25.84 [ 4000 74 90 ]

219.637892 +54.435311 [ 4000 74 90 ]

V(km/s) 264 [2] / z(~) 0.000881 [0.000007] / cz 264.12 [2.00] B 2013AJ....146...15G

10 D 2018MNRAS.479.4136K

u (AB) 19.471 [0.045] C 2009ApJS..182..543A

g (AB) 19.202 [0.016] C 2009ApJS..182..543A

r (AB) 19.098 [0.020] C 2009ApJS..182..543A

i (AB) 19.727 [0.058] C 2009ApJS..182..543A

z (AB) 20.070 [0.233] C 2009ApJS..182..543A

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NAME Leo P AGC 208583 SDSSCGB 11269.1 SDSS J102145.12+180516.8

References (268 between 1850 and 2026) (Total 268)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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SDSS J102145.12+180516.8

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