J/A+A/693/A150 Galaxies metallicity gradients (Khoram+, 2025)
Direct-method metallicity gradients derived from spectral stacking with
SDSS-IV MaNGA.
Khoram A.H., Belfiore F.
<Astron. Astrophys. 693, A150 (2025)>
=2025A&A...693A.150K 2025A&A...693A.150K (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies ; Abundances ; Spectroscopy
Keywords: galaxies: abundances - galaxies: evolution - galaxies: ISM -
galaxies: star formation
Abstract:
Chemical abundances are key tracers of the cycle of baryons driving
the evolution of galaxies. Most measurements of interstellar medium
(ISM) abundance and metallicity gradients in galaxies are based,
however, on model-dependent strong-line methods. Direct chemical
abundances can be obtained via the detection of weak auroral lines,
but such lines are too faint to be detected across large spectroscopic
surveys of the local Universe. In this work we overcome this
limitation and obtain metallicity gradients from direct method
abundances by stacking spectra from the MaNGA integral field
spectroscopy survey. In particular we stack 4150 star-forming galaxies
across the star formation rate-stellar mass (SFR-Mstar) plane and
across six radial bins.
We calculate electron temperatures for [OII], [SII], [NII], [SIII] and
[OIII] across the majority of stacks. We find that the
T[OII]∼T[SII]∼T[OII], as expected since these ions all trace the
low-ionization zone of nebulae. The [OIII] temperatures become
substantially larger than those of other ions at high metallicity,
indicating potentially unaccounted for spectral contamination or
additional physics. In light of this uncertainty we base our abundance
calculation on the temperatures of [SIII] and the low-ionization ions.
We recover a mass-metallicity relation (MZR) similar to that obtained
with different empirical calibrations. We do not find evidence,
however, for a secondary dependence on SFR using direct metallicities.
Finally, we derive metallicity gradients that becomes steeper with
stellar mass for log(Mstar/M☉)<10.5. At higher masses, the
gradients flatten again, confirming with auroral line determinations
the trends previously defined with strong-line calibrators.
Description:
In this study, we have computed the Te metallicity across a radial
span of 0.0 to 2.5Re for 4140 star-forming galaxies, distributed
across 56 SFR-M* bins using data from the MaNGA survey (DR17).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
radbinsp.fits 2880 7462 Radially binned integrated spectra (table B1)
globalsp.fits 2880 1246 Global integrated spectra (table B2)
tableb3.dat 828 336 Radially binned emission line fluxes and
their uncertainties
tableb4.dat 814 56 Global emission line fluxes and their
uncertainties in SFRM* bins
tableb5.dat 197 336 Radially binned inferred physical parameters,
electron temperature, ionic abundance, Te and
strong-line metallicity for all the bins
tableb6.dat 192 56 Global inferred physical parameters, including
electron temperature, ionic abundances,
Te-based metallicity, and strong-line
metallicity for all bins
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- BinID Number of the bin in SFR-M* space,
starting from the lowest stellar-mass
and SFR
4- 12 A9 --- RadBin The radial bin considered for
individual galaxies within each
SFR-M* bin, in Re unit
14- 18 F5.2 [Msun] logMass Median stellar masses estimate of all
galaxies within each SFR-M* bin
using g
20- 23 F4.1 [Msun/yr] logSFR Representative SFR for individual
SFR-M* bins, obtained from extinction
corrected Ha flux using MaNGA DAP
catalog
25- 36 E12.6 10-20W/m2 FOII3726 OII3726 emission-line flux (G1)
38- 49 E12.6 10-20W/m2 FOII3728 OII3728 emission-line flux (G1)
51- 62 E12.6 10-20W/m2 FH93751 H93751 emission-line flux (G1)
64- 75 E12.6 10-20W/m2 FH103771 H103771 emission-line flux (G1)
77- 88 E12.6 10-20W/m2 FHth3798 Hth3798 emission-line flux (G1)
90-101 E12.6 10-20W/m2 FHt3836 Ht3836 emission-line flux (G1)
103-114 E12.6 10-20W/m2 FNeIII3868 NeIII3868 emission-line flux (G1)
116-127 E12.6 10-20W/m2 FSII4068 SII4068 emission-line flux (G1)
129-140 E12.6 10-20W/m2 FSII4076 SII4076 emission-line flux (G1)
142-153 E12.6 10-20W/m2 FHd4101 Hd4101 emission-line flux (G1)
155-166 E12.6 10-20W/m2 FHg4340 Hg4340 emission-line flux (G1)
168-179 E12.6 10-20W/m2 FFeII4288 FeII4288 emission-line flux (G1)
181-192 E12.6 10-20W/m2 FOIII4363 OIII4363 emission-line flux (G1)
194-205 E12.6 10-20W/m2 FFeII4359 FeII4359 emission-line flux (G1)
207-218 E12.6 10-20W/m2 FHb4861 Hb4861 emission-line flux (G1)
220-231 E12.6 10-20W/m2 FHeII4685 HeII4685 emission-line flux (G1)
233-244 E12.6 10-20W/m2 FFeIII4659 FeIII4659 emission-line flux (G1)
246-257 E12.6 10-20W/m2 FArIV4713 ArIV4713 emission-line flux (G1)
259-270 E12.6 10-20W/m2 FOIII4958 OIII4958 emission-line flux (G1)
272-283 E12.6 10-20W/m2 FHeI4987 HeI4987 emission-line flux (G1)
285-296 E12.6 10-20W/m2 FOIII5006 OIII5006 emission-line flux (G1)
298-309 E12.6 10-20W/m2 FHeI5016 HeI5016 emission-line flux (G1)
311-322 E12.6 10-20W/m2 FNII5754 NII5754 emission-line flux (G1)
324-335 E12.6 10-20W/m2 FHeI5875 HeI5875 emission-line flux (G1)
337-348 E12.6 10-20W/m2 FOI6300 OI6300 emission-line flux (G1)
350-361 E12.6 10-20W/m2 FSIII6312 SIII6312 emission-line flux (G1)
363-374 E12.6 10-20W/m2 FOI6363 OI6363 emission-line flux (G1)
376-387 E12.6 10-20W/m2 FNII6548 NII6548 emission-line flux (G1)
389-400 E12.6 10-20W/m2 FHa6562 Ha6562 emission-line flux (G1)
402-413 E12.6 10-20W/m2 FNII6583 NII6583 emission-line flux (G1)
415-426 E12.6 10-20W/m2 FHeI6678 HeI6678 emission-line flux (G1)
428-439 E12.6 10-20W/m2 FHeI6680 HeI6680 emission-line flux (G1)
441-452 E12.6 10-20W/m2 FSII6716 SII6716 emission-line flux (G1)
454-465 E12.6 10-20W/m2 FSII6730 SII6730 emission-line flux (G1)
467-478 E12.6 10-20W/m2 FArIII7135 ArIII7135 emission-line flux (G1)
480-486 F7.2 10-20W/m2 FOII7329 OII7329 emission-line flux (G1)
488-494 F7.2 10-20W/m2 FOII7330 OII7330 emission-line flux (G1)
496-502 F7.2 10-20W/m2 FOII7318 OII7318 emission-line flux (G1)
504-510 F7.2 10-20W/m2 FOII7319 OII7319 emission-line flux (G1)
512-518 F7.2 10-20W/m2 FNNII7303 NNII7303 emission-line flux (G1)
520-527 F8.2 10-20W/m2 FSIII9068 SIII9068 emission-line flux (G1)
529-534 F6.3 10-20W/m2 e_FOII3726 OII3726 emission-line flux
uncertainty (G2)
536-541 F6.3 10-20W/m2 e_FOII3728 OII3728 emission-line flux
uncertainty (G2)
543-548 F6.3 10-20W/m2 e_FH93751 H93751 emission-line flux
uncertainty (G2)
550-555 F6.3 10-20W/m2 e_FH103771 H103771 emission-line flux
uncertainty (G2)
557-562 F6.3 10-20W/m2 e_FHth3798 Hth3798 emission-line flux
uncertainty (G2)
564-569 F6.3 10-20W/m2 e_FHt3836 Ht3836 emission-line flux
uncertainty (G2)
571-576 F6.3 10-20W/m2 e_FNeIII3868 NeIII3868 emission-line flux
uncertainty (G2)
578-583 F6.3 10-20W/m2 e_FSII4068 SII4068 emission-line flux
uncertainty (G2)
585-590 F6.3 10-20W/m2 e_FSII4076 SII4076 emission-line flux
uncertainty (G2)
592-597 F6.3 10-20W/m2 e_FHd4101 Hd4101 emission-line flux
uncertainty (G2)
599-604 F6.3 10-20W/m2 e_FHg4340 Hg4340 emission-line flux
uncertainty (G2)
606-611 F6.3 10-20W/m2 e_FFeII4288 FeII4288 emission-line flux
uncertainty (G2)
613-618 F6.3 10-20W/m2 e_FOIII4363 OIII4363 emission-line flux
uncertainty (G2)
620-625 F6.3 10-20W/m2 e_FFeII4359 FeII4359 emission-line flux
uncertainty (G2)
627-632 F6.3 10-20W/m2 e_FHb4861 Hb4861 emission-line flux
uncertainty (G2)
634-639 F6.3 10-20W/m2 e_FHeII4685 HeII4685 emission-line flux
uncertainty (G2)
641-646 F6.3 10-20W/m2 e_FFeIII4659 FeIII4659 emission-line flux
uncertainty (G2)
648-653 F6.3 10-20W/m2 e_FArIV4713 ArIV4713 emission-line flux
uncertainty (G2)
655-660 F6.3 10-20W/m2 e_FOIII4958 OIII4958 emission-line flux
uncertainty (G2)
662-667 F6.3 10-20W/m2 e_FHeI4987 HeI4987 emission-line flux
uncertainty (G2)
669-674 F6.3 10-20W/m2 e_FOIII5006 OIII5006 emission-line flux
uncertainty (G2)
676-681 F6.3 10-20W/m2 e_FHeI5016 HeI5016 emission-line flux
uncertainty (G2)
683-688 F6.3 10-20W/m2 e_FNII5754 NII5754 emission-line flux
uncertainty (G2)
690-695 F6.3 10-20W/m2 e_FHeI5875 HeI5875 emission-line flux
uncertainty (G2)
697-706 F10.3 10-20W/m2 e_FOI6300 OI6300 emission-line flux
uncertainty (G2)
708-714 F7.3 10-20W/m2 e_FSIII6312 SIII6312 emission-line flux
uncertainty (G2)
716-721 F6.3 10-20W/m2 e_FOI6363 OI6363 emission-line flux
uncertainty (G2)
723-728 F6.3 10-20W/m2 e_FNII6548 NII6548 emission-line flux
uncertainty (G2)
730-735 F6.3 10-20W/m2 e_FHa6562 Ha6562 emission-line flux error
uncertainty (G2)
737-742 F6.3 10-20W/m2 e_FNII6583 NII6583 emission-line flux
uncertainty (G2)
744-749 F6.3 10-20W/m2 e_FHeI6678 HeI6678 emission-line flux
uncertainty (G2)
751-756 F6.3 10-20W/m2 e_FHeI6680 HeI6680 emission-line flux
uncertainty (G2)
758-763 F6.3 10-20W/m2 e_FSII6716 SII6716 emission-line flux
uncertainty (G2)
765-770 F6.3 10-20W/m2 e_FSII6730 SII6730 emission-line flux
uncertainty (G2)
772-777 F6.3 10-20W/m2 e_FArIII7135 ArIII7135 emission-line flux
uncertainty (G2)
779-786 F8.3 10-20W/m2 e_FOII7329 OII7329 emission-line flux
uncertainty (G2)
788-795 F8.3 10-20W/m2 e_FOII7330 OII7330 emission-line flux
uncertainty (G2)
797-804 F8.3 10-20W/m2 e_FOII7318 OII7318 emission-line flux
uncertainty (G2)
806-813 F8.3 10-20W/m2 e_FOII7319 OII7319 emission-line flux
uncertainty (G2)
815-821 F7.3 10-20W/m2 e_FNNII7303 NNII7303 emission-line flux
uncertainty (G2)
823-828 F6.3 10-20W/m2 e_FSIII9068 SIII9068 emission-line flux
uncertainty (G2)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- BinID Number of the bin in SFR-M* space,
starting from the lowest stellar-mass
and SFR
4- 8 F5.2 [Msun] logMass Median stellar masses estimate of all
galaxies within each SFR-M* bin using g
10- 13 F4.1 [Msun/yr] logSFR Representative SFR for individual SFR-M*
bins, obtained from extinction corrected
Ha flux using MaNGA DAP catalog
15- 26 E12.6 10-20W/m2 FOII3726 OII3726 emission-line flux (G1)
28- 39 E12.6 10-20W/m2 FOII3728 OII3728 emission-line flux (G1)
41- 52 E12.6 10-20W/m2 FH93751 H93751 emission-line flux (G1)
54- 65 E12.6 10-20W/m2 FH103771 H103771 emission-line flux (G1)
67- 78 E12.6 10-20W/m2 FHth3798 Hth3798 emission-line flux (G1)
80- 91 E12.6 10-20W/m2 FHt3836 Ht3836 emission-line flux (G1)
93-104 E12.6 10-20W/m2 FNeIII3868 NeIII3868 emission-line flux (G1)
106-117 E12.6 10-20W/m2 FSII4068 SII4068 emission-line flux (G1)
119-130 E12.6 10-20W/m2 FSII4076 SII4076 emission-line flux (G1)
132-143 E12.6 10-20W/m2 FHd4101 Hd4101 emission-line flux (G1)
145-156 E12.6 10-20W/m2 FHg4340 Hg4340 emission-line flux (G1)
158-169 E12.6 10-20W/m2 FFeII4288 FeII4288 emission-line flux (G1)
171-182 E12.6 10-20W/m2 FOIII4363 OIII4363 emission-line flux (G1)
184-195 E12.6 10-20W/m2 FFeII4359 FeII4359 emission-line flux (G1)
197-208 E12.6 10-20W/m2 FHb4861 Hb4861 emission-line flux (G1)
210-221 E12.6 10-20W/m2 FHeII4685 HeII4685 emission-line flux (G1)
223-234 E12.6 10-20W/m2 FFeIII4659 FeIII4659 emission-line flux (G1)
236-247 E12.6 10-20W/m2 FArIV4713 ArIV4713 emission-line flux (G1)
249-260 E12.6 10-20W/m2 FOIII4958 OIII4958 emission-line flux (G1)
262-273 E12.6 10-20W/m2 FHeI4987 HeI4987 emission-line flux (G1)
275-286 E12.6 10-20W/m2 FOIII5006 OIII5006 emission-line flux (G1)
288-299 E12.6 10-20W/m2 FHeI5016 HeI5016 emission-line flux (G1)
301-312 E12.6 10-20W/m2 FNII5754 NII5754 emission-line flux (G1)
314-325 E12.6 10-20W/m2 FHeI5875 HeI5875 emission-line flux (G1)
327-338 E12.6 10-20W/m2 FOI6300 OI6300 emission-line flux (G1)
340-351 E12.6 10-20W/m2 FSIII6312 SIII6312 emission-line flux (G1)
353-364 E12.6 10-20W/m2 FOI6363 OI6363 emission-line flux (G1)
366-377 E12.6 10-20W/m2 FNII6548 NII6548 emission-line flux (G1)
379-390 E12.6 10-20W/m2 FHa6562 Ha6562 emission-line flux (G1)
392-403 E12.6 10-20W/m2 FNII6583 NII6583 emission-line flux (G1)
405-416 E12.6 10-20W/m2 FHeI6678 HeI6678 emission-line flux (G1)
418-429 E12.6 10-20W/m2 FHeI6680 HeI6680 emission-line flux (G1)
431-442 E12.6 10-20W/m2 FSII6716 SII6716 emission-line flux (G1)
444-455 E12.6 10-20W/m2 FSII6730 SII6730 emission-line flux (G1)
457-468 E12.6 10-20W/m2 FArIII7135 ArIII7135 emission-line flux (G1)
470-476 F7.2 10-20W/m2 FOII7329 OII7329 emission-line flux (G1)
478-484 F7.2 10-20W/m2 FOII7330 OII7330 emission-line flux (G1)
486-492 F7.2 10-20W/m2 FOII7318 OII7318 emission-line flux (G1)
494-500 F7.2 10-20W/m2 FOII7319 OII7319 emission-line flux (G1)
502-509 F8.2 10-20W/m2 FNNII7303 NNII7303 emission-line flux (G1)
511-518 F8.2 10-20W/m2 FSIII9068 SIII9068 emission-line flux (G1)
520-525 F6.3 10-20W/m2 e_FOII3726 OII3726 emission-line flux
uncertainty (G2)
527-532 F6.3 10-20W/m2 e_FOII3728 OII3728 emission-line flux
uncertainty (G2)
534-539 F6.3 10-20W/m2 e_FH93751 H93751 emission-line flux
uncertainty (G2)
541-546 F6.3 10-20W/m2 e_FH103771 H103771 emission-line flux
uncertainty (G2)
548-553 F6.3 10-20W/m2 e_FHth3798 Hth3798 emission-line flux
uncertainty (G2)
555-560 F6.3 10-20W/m2 e_FHt3836 Ht3836 emission-line flux
uncertainty (G2)
562-567 F6.3 10-20W/m2 e_FNeIII3868 NeIII3868 emission-line flux
uncertainty (G2)
569-574 F6.3 10-20W/m2 e_FSII4068 SII4068 emission-line flux
uncertainty (G2)
576-581 F6.3 10-20W/m2 e_FSII4076 SII4076 emission-line flux
uncertainty (G2)
583-588 F6.3 10-20W/m2 e_FHd4101 Hd4101 emission-line flux
uncertainty (G2)
590-595 F6.3 10-20W/m2 e_FHg4340 Hg4340 emission-line flux
uncertainty (G2)
597-602 F6.3 10-20W/m2 e_FFeII4288 FeII4288 emission-line flux
uncertainty (G2)
604-609 F6.3 10-20W/m2 e_FOIII4363 OIII4363 emission-line flux
uncertainty (G2)
611-616 F6.3 10-20W/m2 e_FFeII4359 FeII4359 emission-line flux
uncertainty (G2)
618-623 F6.3 10-20W/m2 e_FHb4861 Hb4861 emission-line flux
uncertainty (G2)
625-630 F6.3 10-20W/m2 e_FHeII4685 HeII4685 emission-line flux
uncertainty (G2)
632-637 F6.3 10-20W/m2 e_FFeIII4659 FeIII4659 emission-line flux
uncertainty (G2)
639-644 F6.3 10-20W/m2 e_FArIV4713 ArIV4713 emission-line flux
uncertainty (G2)
646-651 F6.3 10-20W/m2 e_FOIII4958 OIII4958 emission-line flux
uncertainty (G2)
653-658 F6.3 10-20W/m2 e_FHeI4987 HeI4987 emission-line flux
uncertainty (G2)
660-665 F6.3 10-20W/m2 e_FOIII5006 OIII5006 emission-line flux
uncertainty (G2)
667-672 F6.3 10-20W/m2 e_FHeI5016 HeI5016 emission-line flux
uncertainty (G2)
674-679 F6.3 10-20W/m2 e_FNII5754 NII5754 emission-line flux
uncertainty (G2)
681-686 F6.3 10-20W/m2 e_FHeI5875 HeI5875 emission-line flux
uncertainty (G2)
688-694 F7.3 10-20W/m2 e_FOI6300 OI6300 emission-line flux
uncertainty (G2)
696-701 F6.3 10-20W/m2 e_FSIII6312 SIII6312 emission-line flux
uncertainty (G2)
703-708 F6.3 10-20W/m2 e_FOI6363 OI6363 emission-line flux
uncertainty (G2)
710-715 F6.3 10-20W/m2 e_FNII6548 NII6548 emission-line flux
uncertainty (G2)
717-722 F6.3 10-20W/m2 e_FHa6562 Ha6562 emission-line flux
uncertainty (G2)
724-729 F6.3 10-20W/m2 e_FNII6583 NII6583 emission-line flux
uncertainty (G2)
731-737 F7.3 10-20W/m2 e_FHeI6678 HeI6678 emission-line flux
uncertainty (G2)
739-745 F7.3 10-20W/m2 e_FHeI6680 HeI6680 emission-line flux
uncertainty (G2)
747-752 F6.3 10-20W/m2 e_FSII6716 SII6716 emission-line flux
uncertainty (G2)
754-759 F6.3 10-20W/m2 e_FSII6730 SII6730 emission-line flux
uncertainty (G2)
761-767 F7.3 10-20W/m2 e_FArIII7135 ArIII7135 emission-line flux
uncertainty (G2)
769-775 F7.3 10-20W/m2 e_FOII7329 OII7329 emission-line flux
uncertainty (G2)
777-783 F7.3 10-20W/m2 e_FOII7330 OII7330 emission-line flux
uncertainty (G2)
785-791 F7.3 10-20W/m2 e_FOII7318 OII7318 emission-line flux
uncertainty (G2)
793-799 F7.3 10-20W/m2 e_FOII7319 OII7319 emission-line flux
uncertainty (G2)
801-806 F6.3 10-20W/m2 e_FNNII7303 NNII7303 emission-line flux
uncertainty (G2)
808-814 F7.3 10-20W/m2 e_FSIII9068 SIII9068 emission-line flux
uncertainty (G2)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- BinID Number of the bin in SFR-M* space, starting
from the lowest stellar-mass and SFR
4- 12 A9 --- RadBin The radial bin considered for individual
galaxies within each SFR-M* bin in Re unit
14- 18 F5.2 [Msun] logMass Median stellar masses estimate of all galaxies
within each SFR-M* bin using MaNGA DRP
catalog (NSAELPETROMASS)
20- 23 F4.1 [Msun/yr] logSFR Representative SFR for individual SFR-M* bins,
obtained from extinction corrected Ha flux
using MaNGA DAP catalog
25- 32 F8.2 K TNII ?=- Electron temperature of [NII]
34- 40 F7.3 K e_TNII ?=- Electron temperature uncertainty of [NII]
obtained via MC method
42- 49 F8.2 K TOII ?=- Electron temperature of [OII]
51- 57 F7.3 K e_TOII ?=- Electron temperature uncertainty of [OII]
obtained via MC method
59- 66 F8.2 K TSII ?=- Electron temperature of [SII]
68- 74 F7.3 K e_TSII ?=- Electron temperature uncertainty of [SII]
obtained via MC method
76- 83 F8.2 K TOIII ?=- Electron temperature of [OIII]
85- 91 F7.3 K e_TOIII ?=- Electron temperature uncertainty of [OIII]
obtained via MC method
93-100 F8.2 K TSIII ?=- Electron temperature of [SIII]
102-108 F7.3 K e_TSIII ?=- Electron temperature uncertainty of [SIII]
obtained via MC method
110-121 E12.6 --- O+ ?=- Abundance of O+/H+
123-134 E12.6 --- e_O+ ?=- Abundance uncertainty of O+/H+
obtained via MC method
136-147 E12.6 --- O++ ?=- Abundance of O++/H+
149-160 E12.6 --- e_O++ ?=- Abundance uncertainty of O++/H+
obtained via MC method
162-168 F7.5 --- P04Met ?=- Strong-line metallicity estimate based on
Pettini & Pagel (2004MNRAS.348L..59P 2004MNRAS.348L..59P)
O3N2 calibration
170-181 E12.6 --- e_P04Met ?=- Strong-line metallicity uncertainty
estimate
183-189 F7.5 --- TeMet ?=- Direct-method metallicity estimate via
electron temperatures
191-197 F7.5 --- e_TeMet ?=- Direct-method metallicity uncertainty
obtained via MC methodcb1
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- BinID Number of the bin in SFR-M* space, starting
from the lowest stellar-mass and SFR
4- 8 F5.2 [Msun] logMass Median stellar masses estimate of all galaxies
within each SFR-M* bin using MaNGA DRP
catalog (NSAELPETROMASS)
10- 13 F4.1 [Msun/yr] logSFR Representative SFR for individual SFR-M* bins,
obtained from extinction corrected Ha flux
using MaNGA DAP catalog
15- 22 F8.2 K TNII ?=- Electron temperature of [NII]
24- 30 F7.3 K e_TNII ?=- Electron temperature uncertainty of [NII]
obtained via MC method
32- 39 F8.2 K TOII ?=- Electron temperature of [OII]
41- 47 F7.3 K e_TOII ?=- Electron temperature uncertainty of [OII]
obtained via MC method
49- 56 F8.2 K TSII ?=- Electron temperature of [SII]
58- 64 F7.3 K e_TSII ?=- Electron temperature uncertainty of [SII]
obtained via MC method
66- 73 F8.2 K TOIII ?=- Electron temperature of [OIII]
75- 81 F7.3 K e_TOIII ?=- Electron temperature uncertainty of [OIII]
obtained via MC method
83- 90 F8.2 K TSIII ?=- Electron temperature of [SIII]
92- 98 F7.3 K e_TSIII ?=- Electron temperature uncertainty of [SIII]
obtained via MC method
100-111 E12.6 --- O+ ?=- Abundance of O+/H+
113-124 E12.6 --- e_O+ ?=- Abundance uncertainty of O+/H+
obtained via MC method
126-137 E12.6 --- O++ ?=- Abundance of O++/H+
139-150 E12.6 --- e_O++ ?=- Abundance uncertainty of O++/H+
obtained via MC method
152-158 F7.5 --- P04Met Strong-line metallicity estimate based on
Pettini & Pagel (2004MNRAS.348L..59P 2004MNRAS.348L..59P)
O3N2 calibration
160-171 E12.6 --- e_P04Met Strong-line metallicity uncertainty estimate
173-179 F7.5 --- TeMet ?=- Direct-method metallicity estimate via
electron temperatures
181-192 E12.6 --- e_TeMet ?=- Direct-method metallicity uncertainty
obtained via MC methodcb1
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Global notes:
Note (G1): Emission-line flux for ion/atom obtained from integrated spectra
within specified radial range and modelled with pPXF
Note (G2): Official emission-line flux uncertainty for ion/atom obtained from
integrated spectra within specified radial range
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Acknowledgements:
Amir H. Khoram, amirhossein.khoram(at)inaf.it
(End) Patricia Vannier [CDS] 19-Nov-2024