J/ApJ/893/96 CHAOS IV: NGC3184 LBT obs. & 3 other gal. abundances (Berg+, 2020)
CHAOS IV: gas-phase abundance trends from the first four CHAOS galaxies.
Berg D.A., Pogge R.W., Skillman E.D., Croxall K.V., Moustakas J.,
Rogers N.S.J., Sun J.
<Astrophys. J., 893, 96 (2020)>
=2020ApJ...893...96B 2020ApJ...893...96B
ADC_Keywords: Galaxies, nearby; Spectra, optical; Abundances
Keywords: Chemical abundances ; Galaxy abundances ; Interstellar abundances ;
Metallicity ; Spiral galaxies ; Galaxy chemical evolution ;
Galaxy evolution ; Interstellar medium
Abstract:
The chemical abundances of spiral galaxies, as probed by HII regions
across their disks, are key to understanding the evolution of galaxies
over a wide range of environments. We present Large Binocular
Telescope/Multi-Object Double Spectrographs spectra of 52 HII regions
in NGC 3184 as part of the CHemical Abundances Of Spirals (CHAOS)
project. We explore the direct-method gas-phase abundance trends for
the first four CHAOS galaxies, using temperature measurements from one
or more auroral-line detections in 190 individual HII regions. We find
that the dispersion in Te-Te relationships is dependent on
ionization, as characterized by Fλ5007/Fλ3727, and
so we recommend ionization-based temperature priorities for abundance
calculations. We confirm our previous results that [NII] and [SIII]
provide the most robust measures of electron temperature in
low-ionization zones, while [OIII] provides reliable electron
temperatures in high-ionization nebula. We measure relative and
absolute abundances for O, N, S, Ar, and Ne. The four CHAOS galaxies
marginally conform with a universal O/H gradient, as found by
empirical integral field unit studies when plotted relative to
effective radius. However, after adjusting for vertical offsets, we
find a tight universal N/O gradient of αN/O=-0.33dex/Re with
σtot.=0.08 for Rg/Re<2.0, where N is dominated by
secondary production. Despite this tight universal N/O gradient, the
scatter in the N/O-O/H relationship is significant. Interestingly, the
scatter is similar when N/O is plotted relative to O/H or S/H. The
observable ionic states of S probe lower ionization and excitation
energies than O, which might be more appropriate for characterizing
abundances in metal-rich HII regions.
Description:
All the CHemical Abundances Of Spirals (CHAOS; Berg+ 2015, J/ApJ/806/16)
observations are obtained following a consistent methodology, but here
we highlight details specific to new observations of NGC 3184.
Optical spectra of NGC 3184 were obtained during 2012 March and 2013
January using the Multi-Object Double Spectrographs (MODS) on the
Large Binocular Telescope (LBT). The spectra were acquired with the
MODS1 unit. We obtained simultaneous blue and red spectra using the
G400L (400lines/mm, R∼1850) and G670L (250lines/mm, R∼2300) gratings,
respectively. See Section 2.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 88 52 NGC 3184 MODS/LBT observations taken
on UT 2012-03-24; 2013-01-06
tablea2.dat 715 52 Emission-Line intensities and equivalent widths
for LBT observations of HII regions in NGC 3184
tablea3.dat 351 30 Ionic and total abundances for LBT observations
of NGC 3184
tableb1.dat 72 45 Updated abundances for NGC 628
using ionization-based Te
tableb2.dat 73 28 Updated abundances for NGC 5194
using ionization-based Te
tableb3.dat 73 73 Updated abundances for NGC 5457
using ionization-based Te
--------------------------------------------------------------------------------
See also:
J/ApJ/636/214 : HII regions in dwarf irregular galaxies (van Zee+, 2006)
J/ApJ/675/1213 : Abundances in M33 HII regions (Rosolowsky+, 2008)
J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)
J/ApJ/703/517 : The Spitzer Local Volume Legacy: IR photometry (Dale+, 2009)
J/ApJ/700/654 : Keck sp. of extragalactic HII regions (Esteban+ 2009)
J/ApJ/703/1569 : Radial distribution in SINGS gal. I. (Munoz-Mateos+, 2009)
J/ApJS/190/233 : Spectroscopy and abundances of SINGS gal. (Moustakas+, 2010)
J/PASP/122/1397 : Spitzer Survey of Stellar Structure in Gal. (Sheth+, 2010)
J/ApJ/795/165 : Line ratios in z∼2-3 gal. from KBSS-MOSFIRE (Steidel+, 2014)
J/ApJ/806/16 : CHemical Abundances of Spirals I. NGC628 (Berg+, 2015)
J/ApJ/808/42 : CHemical Abundances of Spirals II. M51 (Croxall+, 2015)
J/ApJ/814/L6 : CIII] emission in near & far star-forming gal. (Rigby+, 2015)
J/ApJ/830/4 : HII region abundances in NGC 5457 (M101) (Croxall+, 2016)
J/A+A/587/A70 : CALIFA face-on spiral gal. oxygen (Sanchez-Menguiano+, 2016)
J/ApJS/233/22 : xCOLD GASS catalog (Saintonge+, 2017)
J/A+A/627/A24 : Stellar models with rotation, Z=0.0004 (Groh+, 2019)
J/A+A/623/A122 : Sample of MaNGA galaxies properties (Pilyugin+, 2019)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Reg NGC 3184 HII region slit ID (1)
21- 22 I2 h RAh [10] Hour of Right Ascension (J2000)
24- 25 I2 min RAm [18] Minute of Right Ascension (J2000)
27- 30 F4.1 s RAs [1.5/27.8] Second of Right Ascension (J2000)
32- 33 I2 deg DEd [41] Degree of Declination (J2000)
35- 36 I2 arcmin DEm [22/27] Arcminute of Declination (J2000)
38- 42 F5.2 arcsec DEs Arcsecond of Declination (J2000)
44- 49 F6.2 arcsec Rgarc [2/182.7] De-projected HII region distance
galaxy center
51- 55 F5.3 --- R/R25 [0.009/0.9] Fraction of R25 radius
57- 61 F5.2 kpc Rgkpc [0.1/10.4] HII region distance in kpc
63- 68 F6.1 arcsec oRA [-172.5/123.8] RA offset from the central position
(RAJ2000=10:18:16.86,DEJ2000=+41:25:26.59)
70- 75 F6.1 arcsec oDE [-148.2/148.8] DE offset from the central position
(RAJ2000=10:18:16.86,DEJ2000=+41:25:26.59)
77- 77 I1 --- dOIII [1]? Detection, [OIII] w4363 auroral line (2)
79- 79 I1 --- dNII [1]? Detection, [NII] w5755 auroral line (2)
81- 81 I1 --- dSIII [1]? Detection, [SIII] w6312 auroral line (2)
83- 83 I1 --- dOII [1]? Detection, [OII] w7320,w7330 auroral lines (2)
85- 85 I1 --- dSII [1]? Detection, [SII] w4068,w4076 auroral lines (2)
87- 88 I2 --- dWR [1]? HII regions have Wolf-Rayet feature detections
--------------------------------------------------------------------------------
Note (1): Slit ID, composed of the galaxy name and the offset in RA and DE,
in arcseconds, from the central position listed for NGC 3184 in Table 1.
Note (2): Detected auroral line at 3σ significance.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Reg NGC 3184 HII region slit ID (1)
21- 25 F5.3 --- H14-w3721 [0.009/0.025] Line intensity, H14
w3721 (2)
27- 31 F5.3 --- e_H14-w3721 [0.001/0.02] Uncertainty in H14-w3721
33- 37 F5.3 --- OII-w3727 [0.3/4.2] Line intensity, [OII]
w3727 (2)
39- 43 F5.3 --- e_OII-w3727 [0.007/0.8] Uncertainty in OII-w3727
45- 49 F5.3 --- H13-w3734 [0.01/0.031] Line intensity, H13
w3734 (2)
51- 55 F5.3 --- e_H13-w3734 [0.001/0.02] Uncertainty in H13-w3734
57- 61 F5.3 --- H12-w3750 [0.003/0.06] Line intensity, H12
w3750 (2)
63- 67 F5.3 --- e_H12-w3750 [0.001/0.015] Uncertainty in H12-w3750
69- 73 F5.3 --- H11-w3770 [0.019/0.09]? Line intensity, H11
w3770 (2)
75- 79 F5.3 --- e_H11-w3770 [0.001/0.04]? Uncertainty in H11-w3770
81- 85 F5.3 --- H10-w3797 [0.02/0.07] Line intensity, H10
w3797 (2)
87- 91 F5.3 --- e_H10-w3797 [0.001/0.04] Uncertainty in H10-w3797
93- 97 F5.3 --- HeI-w3819 [0.001/0.05]? Line intensity, HeI
w3819 (2)
99- 103 F5.3 --- e_HeI-w3819 [0.001/0.01]? Uncertainty in HeI-w3819
105- 109 F5.3 --- H9-w3835 [0.02/0.11] Line intensity, H9 w3835
(2)
111- 115 F5.3 --- e_H9-w3835 [0.001/0.07] Uncertainty in H9-w3835
117- 121 F5.3 --- NeIII-w3868 [0.003/0.2]? Line intensity, [NeIII]
w3868 (2)
123- 127 F5.3 --- e_NeIII-w3868 [0.001/0.01]? Uncertainty in
NeIII-w3868
129- 133 F5.3 --- HeI-w3888 [0.01/0.2] Line intensity, HeI w3888
(2)
135- 139 F5.3 --- e_HeI-w3888 [0.001/0.07] Uncertainty in HeI-w3888
141- 145 F5.3 --- H8-w3889 [0.04/0.2] Line intensity, H8 w3889
(2)
147- 151 F5.3 --- e_H8-w3889 [0.001/0.08] Uncertainty in H8-w3889
153- 157 F5.3 --- HeI-w3964 [0.001/0.03]? Line intensity, HeI
w3964 (2)
159- 163 F5.3 --- e_HeI-w3964 [0.001/0.02]? Uncertainty in HeI-w3964
165- 169 F5.3 --- NeIII-w3967 [0.003/0.2]? Line intensity, [NeIII]
w3967 (2)
171- 175 F5.3 --- e_NeIII-w3967 [0.001/0.04]? Uncertainty in
NeIII-w3967
177- 181 F5.3 --- H7-w3970 [0.07/0.2] Line intensity, H7 w3970
(2)
183- 187 F5.3 --- e_H7-w3970 [0.002/0.11] Uncertainty in H7-w3970
189- 193 F5.3 --- NeIII-w4011 [0.001/0.03]? Line intensity,
[NeIII] w4011 (2)
195- 199 F5.3 --- e_NeIII-w4011 [0.001/0.006]? Uncertainty in
NeIII-w4011
201- 205 F5.3 --- HeI-w4026 [0.001/0.04]? Line intensity, HeI
w4026 (2)
207- 211 F5.3 --- e_HeI-w4026 [0.001/0.004]? Uncertainty in
HeI-w4026
213- 217 F5.3 --- SII-w4068 [0.001/0.041]? Line intensity, [SII]
w4068 (2)
219- 223 F5.3 --- e_SII-w4068 [0.001/0.01]? Uncertainty in SII-w4068
225- 229 F5.3 --- SII-w4076 [0.002/0.03]? Line intensity, [SII]
w4076 (2)
231- 235 F5.3 --- e_SII-w4076 [0.001/0.007]? Uncertainty in
SII-w4076
237- 241 F5.3 --- Hd-w4101 [0.16/0.4] Line intensity, Hδ
w4101 (2)
243- 247 F5.3 --- e_Hd-w4101 [0.001/0.3] Uncertainty in Hd-w4101
249- 253 F5.3 --- HeI-w4120 [0.001/0.018]? Line intensity, HeI
w4120 (2)
255- 259 F5.3 --- e_HeI-w4120 [0.001/0.009]? Uncertainty in
HeI-w4120
261- 265 F5.3 --- HeI-w4143 [0.001/0.013]? Line intensity, HeI
w4143 (2)
267- 271 F5.3 --- e_HeI-w4143 [0.001/0.004]? Uncertainty in
HeI-w4143
273- 277 F5.3 --- Hg-w4340 [0.39/0.5] Line intensity, Hγ
w4340 (2)
279- 283 F5.3 --- e_Hg-w4340 [0.002/0.5] Uncertainty in Hg-w4340
285- 289 F5.3 --- OIII-w4363 [0.001/0.014]? Line intensity,
[OIII] w4363 (2)
291- 295 F5.3 --- e_OIII-w4363 [0.001/0.011]? Uncertainty in
OIII-w4363
297- 301 F5.3 --- HeI-w4387 [0.001/0.02]? Line intensity, HeI
w4387 (2)
303- 307 F5.3 --- e_HeI-w4387 [0.001/0.004]? Uncertainty in
HeI-w4387
309- 313 F5.3 --- HeI-w4471 [0.001/0.041]? Line intensity, HeI
w4471 (2)
315- 319 F5.3 --- e_HeI-w4471 [0.001/0.006]? Uncertainty in
HeI-w4471
321- 325 F5.3 --- FeIII-w4658 [0.001/0.03]? Line intensity,
[FeIII] w4658 (2)
327- 331 F5.3 --- e_FeIII-w4658 [0.001/0.03]? Uncertainty in
FeIII-w4658
333- 337 F5.3 --- HeII-w4686 [0.001/0.03]? Line intensity, HeII
w4686 (2)
339- 343 F5.3 --- e_HeII-w4686 [0.001/0.03]? Uncertainty in
HeII-w4686
345- 349 F5.3 --- Hb-w4861 [1] Line intensity, Hβ w4861 (2)
351- 355 F5.3 --- e_Hb-w4861 [0.003/1] Uncertainty in Hb-w4861
357- 361 F5.3 --- HeI-w4921 [0.001/0.02]? Line intensity, HeI
w4921 (2)
363- 367 F5.3 --- e_HeI-w4921 [0.001/0.03]? Uncertainty in HeI-w4921
369- 373 F5.3 --- OIII-w4959 [0.008/1.1] Line intensity, [OIII]
w4959 (2)
375- 379 F5.3 --- e_OIII-w4959 [0.001/0.05] Uncertainty in OIII-w4959
381- 385 F5.3 --- OIII-w5007 [0.03/3] Line intensity, [OIII]
w5007 (2)
387- 391 F5.3 --- e_OIII-w5007 [0.001/0.12] Uncertainty in OIII-w5007
393- 397 F5.3 --- HeI-w5015 [0.001/0.06] Line intensity, HeI
w5015 (2)
399- 403 F5.3 --- e_HeI-w5015 [0.001/0.03] Uncertainty in HeI-w5015
405- 409 F5.3 --- NII-w5755 [0.001/0.02]? Line intensity, [NII]
w5755 (2)
411- 415 F5.3 --- e_NII-w5755 [0.001/0.015]? Uncertainty in
NII-w5755
417- 421 F5.3 --- HeI-w5876 [0.03/0.4] Line intensity, HeI w5876
(2)
423- 427 F5.3 --- e_HeI-w5876 [0.001/0.07] Uncertainty in HeI-w5876
429- 433 F5.3 --- OI-w6300 [0.003/0.06]? Line intensity, [OI]
w6300 (2)
435- 439 F5.3 --- e_OI-w6300 [0.001/0.03]? Uncertainty in OI-w6300
441- 445 F5.3 --- SIII-w6312 [0.001/0.02]? Line intensity, [SIII]
w6312 (2)
447- 451 F5.3 --- e_SIII-w6312 [0.001/0.008]? Uncertainty in
SIII-w6312
453- 457 F5.3 --- OI-w6363 [0.001/0.04]? Line intensity, [OI]
w6363 (2)
459- 463 F5.3 --- e_OI-w6363 [0.001/0.01]? Uncertainty in OI-w6363
465- 469 F5.3 --- NII-w6548 [0.13/0.41] Line intensity, [NII]
w6548 (2)
471- 475 F5.3 --- e_NII-w6548 [0.004/0.31] Uncertainty in NII-w6548
477- 481 F5.3 --- Ha-w6563 [2.6/3.2] Line intensity, Hα
w6563 (2)
483- 487 F5.3 --- e_Ha-w6563 [0.02/3] Uncertainty in Ha-w6563
489- 493 F5.3 --- NII-w6584 [0.4/1.3] Line intensity, [NII]
w6584 (2)
495- 499 F5.3 --- e_NII-w6584 [0.005/1] Uncertainty in NII-w6584
501- 505 F5.3 --- HeI-w6678 [0.006/0.04] Line intensity, HeI
w6678 (2)
507- 511 F5.3 --- e_HeI-w6678 [0.001/0.03] Uncertainty in HeI-w6678
513- 517 F5.3 --- SII-w6717 [0.1/0.51] Line intensity, [SII]
w6717 (2)
519- 523 F5.3 --- e_SII-w6717 [0.002/0.4] Uncertainty in SII-w6717
525- 529 F5.3 --- SII-w6731 [0.09/0.4] Line intensity, [SII]
w6731 (2)
531- 535 F5.3 --- e_SII-w6731 [0.001/0.3] Uncertainty in SII-w6731
537- 541 F5.3 --- HeI-w7065 [0.002/0.033]? Line intensity, HeI
w7065 (2)
543- 547 F5.3 --- e_HeI-w7065 [0.001/0.009]? Uncertainty in
HeI-w7065
549- 553 F5.3 --- ArIII-w7135 [0.004/0.11]? Line intensity,
[ArIII] w7135 (2)
555- 559 F5.3 --- e_ArIII-w7135 [0.001/0.03]? Uncertainty in
ArIII-w7135
561- 565 F5.3 --- OII-w7320 [0.001/0.03] Line intensity, [OII]
w7320 (2)
567- 571 F5.3 --- e_OII-w7320 [0.001/0.04] Uncertainty in OII-w7320
573- 577 F5.3 --- OII-w7330 [0.001/0.04]? Line intensity, [OII]
w7330 (2)
579- 583 F5.3 --- e_OII-w7330 [0.001/0.04]? Uncertainty in OII-w7330
585- 589 F5.3 --- ArIII-w7751 [0.003/0.03]? Line intensity,
[ArIII] w7751 (2)
591- 595 F5.3 --- e_ArIII-w7751 [0.001/0.008]? Uncertainty in
ArIII-w7751
597- 601 F5.3 --- P13-w8665 [0.001/0.02]? Line intensity, P13
w8665 (2)
603- 607 F5.3 --- e_P13-w8665 [0.001/0.03]? Uncertainty in P13-w8665
609- 613 F5.3 --- P12-w8750 [0.004/2.6]? Line intensity, P12
w8750 (2)
615- 619 F5.3 --- e_P12-w8750 [0.002/0.05]? Uncertainty in P12-w8750
621- 625 F5.3 --- P11-w8862 [0.001/0.08]? Line intensity, P11
w8862 (2)
627- 631 F5.3 --- e_P11-w8862 [0.002/0.04]? Uncertainty in P11-w8862
633- 637 F5.3 --- P10-w9015 [0.002/0.05]? Line intensity, P10
w9015 (2)
639- 643 F5.3 --- e_P10-w9015 [0.001/0.03]? Uncertainty in
P10-w9015
645- 649 F5.3 --- SIII-w9069 [0.05/0.4]? Line intensity, [SIII]
w9069 (2)
651- 655 F5.3 --- e_SIII-w9069 [0.001/0.2]? Uncertainty in SIII-w9069
657- 661 F5.3 --- P9-w9229 [0.002/0.04]? Line intensity, P9
w9229 (2)
663- 667 F5.3 --- e_P9-w9229 [0.001/0.03]? Uncertainty in P9-w9229
669- 673 F5.3 --- SIII-w9532 [0.18/1] Line intensity, [SIII]
w9532 (2)
675- 679 F5.3 --- e_SIII-w9532 [0.003/0.6] Uncertainty in SIII-w9532
681- 685 F5.3 --- P8-w9546 [0.01/0.2]? Line intensity, P8 w9546
(2)
687- 691 F5.3 --- e_P8-w9546 [0.002/0.03]? Uncertainty in P8-w9546
693- 697 F5.3 mag E(B-V) [0.09/0.7] E(B-V) reddening (3)
699- 703 F5.3 mag e_E(B-V) [0.004/0.03] Uncertainty in E (B-V)
705- 710 F6.2 10-16mW/m2 FHb [9.6/314] FHβ line flux,
10-16erg/s/cm2
712- 715 F4.2 10-16mW/m2 e_FHb [0.1/1.4] Uncertainty in FHβ
--------------------------------------------------------------------------------
Note (1): Slit ID, composed of the galaxy name and the offset in RA and DE,
in arcseconds, from the central position listed for NGC 3184 in Table 1.
Note (2): Reddening-corrected emission line intensities relative to Hβ.
Note (3): Note that previous CHAOS papers incorrectly reported the E(B-V)
quantities as CHβ, whereas the values listed here are E(B-V) (mag).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Reg NGC 3184 HII region slit ID (1)
21- 25 I5 K Te[SII] [5700/23900]? Measured electron temperature
from the [SII] ion
27- 29 I3 K e_Te[SII] [400]? Uncertainty in Te[SII]
31- 34 I4 K Te[NII] [6000/9900]? Measured electron temperature
from the [NII] ion
36- 39 I4 K e_Te[NII] [1700]? Uncertainty in Te[NII]
41- 45 I5 K Te[OII] [6800/12500]? Measured electron temperature
from the [OII] ion
47- 49 I3 K e_Te[OII] [400]? Uncertainty in Te[OII]
51- 54 I4 K Te[SIII] [6400/9400]? Measured electron temperature
from the [SIII] ion
56- 58 I3 K e_Te[SIII] [600/600]? Uncertainty in Te[SIII]
60- 63 I4 K Te[OIII] [8600/9600]? Measured electron temperature
from the [OIII] ion
65- 67 I3 K e_Te[OIII] [100]? Uncertainty in Te[OIII]
69- 73 I5 cm-3 nem [10/29500] Measured electron density
75- 76 I2 cm-3 e_nem [0/10] Uncertainty in nem
78- 81 I4 K Te-low [6000/9900] Adopted ionization-based
temperature, lower ionization zone (2)
83- 86 I4 K e_Te-low [100/1900] Uncertainty in Te-low
88- 91 I4 K Te-int [4700/9900] Adopted ionization-based
temperature, intermediate ionization zone (2)
93- 96 I4 K e_Te-int [100/2600] Uncertainty in Te-int
98- 102 I5 K Te-high [4800/10300] Adopted ionization-based
temperature, upper ionization zone (2)
104- 107 I4 K e_Te-high [100/2700] Uncertainty in Te-high
109- 111 I3 cm-3 neu [10/100] Used electron density
113- 114 I2 cm-3 e_neu [10] Uncertainty in neu
116- 119 F4.1 10-5 O+/H+ [8.1/62.8] Abundance ratio, O+/H+
121- 124 F4.1 10-5 e_O+/H+ [1.4/32] Uncertainty in O+/H+
126- 129 F4.1 10-5 O+2/H+ [1.8/57.7] Abundance ratio, O+2/H+
131- 134 F4.1 10-5 e_O+2/H+ [0.2/67.3] Uncertainty in O+2/H+
136- 140 F5.3 [-] log(O/H) [8.2/9] Oxygen abundance, 12+log (O/H)
142- 146 F5.3 [-] e_log(O/H) [0.02/0.3] Uncertainty in log (O/H)
148- 152 F5.1 10-6 N+/H+ [10.2/110.4] Abundance ratio, N+/H+
154- 157 F4.1 10-6 e_N+/H+ [1.6/52.5] Uncertainty in N+/H+
159- 163 F5.3 --- ICF(N) [1/2.7] Nitrogen ionization correction factor
165- 169 F5.3 --- e_ICF(N) [0.09/2.91] Uncertainty in ICF (N)
171- 175 F5.3 [-] log(N/H) [7.3/8.5] Nitrogen-to-hydrogen abundance
ratio, log
177- 181 F5.3 [-] e_log(N/H) [0.038/0.4] Uncertainty in log (N/H)
183- 188 F6.3 [-] log(N/O) [-1.2/-0.4] Nitrogen-to-oxygen abundance
ratio, log
190- 194 F5.3 [-] e_log(N/O) [0.03/0.3] Uncertainty in log (N/O)
196- 199 F4.1 10-7 S+/H+ [6.2/86.6] Abundance ratio, S+/H+
201- 204 F4.1 10-7 e_S+/H+ [1.2/40] Uncertainty in S+/H+
206- 210 F5.1 10-7 S2/H+ [41/227.1] Abundance ratio, S2/H+
212- 216 F5.1 10-7 e_S2/H+ [3.3/173.5] Uncertainty in S2/H+
218- 222 F5.3 --- ICF(S) [1/1.8] Sulfur ionization correction factor
224- 228 F5.3 --- e_ICF(S) [0.09/1.5] Uncertainty in ICF (S)
230- 234 F5.3 [-] log(S/H) [6.8/7.7] Sulfur-to-hydrogen abundance
ratio, log
236- 240 F5.3 [-] e_log(S/H) [0.037/0.4] Uncertainty in log (S/H)
242- 247 F6.3 [-] log(S/O) [-1.6/-1.1] Sulfur-to-oxygen abundance
ratio, log
249- 253 F5.3 [-] e_log(S/O) [0.04/0.4] Uncertainty in log (S/O)
255- 260 F6.1 10-6 Ne+2/H+ [3.9/1185]? Abundance ratio, Ne+2/H+
262- 267 F6.1 10-6 e_Ne+2/H+ [0.7/1519]? Uncertainty in Ne+2/H+
269- 273 F5.3 --- ICF(Ne) [1.4/3.1] Neon ionization correction factor
275- 279 F5.3 --- e_ICF(Ne) [0.4/9.2] Uncertainty in ICF (Ne)
281- 285 F5.3 [-] log(Ne/H) [7.4/9.3]? Neon-to-hydrogen abundance
ratio, log
287- 291 F5.3 [-] e_log(Ne/H) [0.07/0.5]? Uncertainty in log (Ne/H)
293- 298 F6.3 [-] log(Ne/O) [-0.92/0.4]? Neon-to-oxygen abundance
ratio, log
300- 304 F5.3 [-] e_log(Ne/O) [0.04/0.4]? Uncertainty in log (Ne/O)
306- 309 F4.1 10-7 Ar+2/H+ [4.0/20.8] Abundance ratio, Ar+2/H+
311- 314 F4.1 10-7 e_Ar+2/H+ [0.5/18.6] Uncertainty in Ar+2/H+
316- 320 F5.3 --- ICF(Ar) [1.4/3.1] Argon ionization correction factor
322- 326 F5.3 --- e_ICF(Ar) [0.14/0.31] Uncertainty in ICF (Ar)
328- 332 F5.3 [-] log(Ar/H) [6/6.7] Argon-to-hydrogen abundance ratio,
log
334- 338 F5.3 [-] e_log(Ar/H) [0.04/0.3] Uncertainty in log (Ar/H)
340- 345 F6.3 [-] log(Ar/O) [-2.61/-1.8] Argon-to-oxygen abundance
ratio, log
347- 351 F5.3 [-] e_log(Ar/O) [0.06/0.4] Uncertainty in log (Ar/O)
--------------------------------------------------------------------------------
Note (1): Slit ID, composed of the galaxy name and the offset in RA and DE,
in arcseconds, from the central position listed for NGC 3184 in Table 1.
Note (2): Adopted ionization-based temperature based on criteria given
in Figure 5.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- [BSC2015] NGC 628 HII region
20- 23 F4.2 [-] log(O/H) [8.1/8.8] Oxygen abundance, 12+log(O/H)
25- 28 F4.2 [-] e_log(O/H) [0.01/0.14] Uncertainty in log(O/H)
30- 34 F5.2 [-] log(N/O) [-1.4/-0.6] Nitrogen-to-oxygen abundance
ratio, log
36- 39 F4.2 [-] e_log(N/O) [0.01/0.2] Uncertainty in log(N/O)
41- 45 F5.2 [-] log(S/O) [-1.5/-0.97] Sulfur-to-oxygen abundance
ratio, log
47- 50 F4.2 [-] e_log(S/O) [0.02/0.3] Uncertainty in log(S/O)
52- 56 F5.2 [-] log(Ar/O) [-2.5/-1.8] Argon-to-oxygen abundance
ratio, log
58- 61 F4.2 [-] e_log(Ar/O) [0.04/0.2] Uncertainty in log(Ar/O)
63- 67 F5.2 [-] log(Ne/O) [-1.1/-0.4]? Neon-to-oxygen abundance
ratio, log
69- 72 F4.2 [-] e_log(Ne/O) [0.01/0.2]? Uncertainty in log(Ne/O)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- [CPB2015] NGC 5194 HII region
21- 24 F4.2 [-] log(O/H) [8.46/8.9] Oxygen abundance, 12+log(O/H)
26- 29 F4.2 [-] e_log(O/H) [0.03/0.16] Uncertainty in log(O/H)
31- 35 F5.2 [-] log(N/O) [-0.8/-0.42] Nitrogen-to-oxygen abundance
ratio, log
37- 40 F4.2 [-] e_log(N/O) [0.04/0.2] Uncertainty in log(N/O)
42- 46 F5.2 [-] log(S/O) [-1.6/-1] Sulfur-to-oxygen abundance ratio,
log
48- 51 F4.2 [-] e_log(S/O) [0.05/0.3] Uncertainty in log(S/O)
53- 57 F5.2 [-] log(Ar/O) [-2.7/-1.8] Argon-to-oxygen abundance ratio,
log
59- 62 F4.2 [-] e_log(Ar/O) [0.05/0.24] Uncertainty in log(Ar/O)
64- 68 F5.2 [-] log(Ne/O) [-0.9/-0.6]? Neon-to-oxygen abundance ratio,
log
70- 73 F4.2 [-] e_log(Ne/O) [0.04/0.12]? Uncertainty in log(Ne/O)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- [CPB2016] NGC 5457 HII region
(<[CPB2016] NGC 5457+xxx.x+yyy.y> in Simbad)
21- 24 F4.2 [-] log(O/H) [7.8/8.9] Oxygen abundance, 12+log(O/H)
26- 29 F4.2 [-] e_log(O/H) [0.01/0.16] Uncertainty in log(O/H)
31- 35 F5.2 [-] log(N/O) [-1.5/-0.6] Nitrogen-to-oxygen abundance
ratio, log
37- 40 F4.2 [-] e_log(N/O) [0.02/0.3] Uncertainty in log(N/O)
42- 46 F5.2 [-] log(S/O) [-1.7/-1] Sulfur-to-oxygen abundance ratio,
log
48- 51 F4.2 [-] e_log(S/O) [0.02/0.26] Uncertainty in log(S/O)
53- 57 F5.2 [-] log(Ar/O) [-2.8/-2]? Argon-to-oxygen abundance ratio,
log
59- 62 F4.2 [-] e_log(Ar/O) [0.04/0.2]? Uncertainty in log(Ar/O)
64- 68 F5.2 [-] log(Ne/O) [-1.1/-0.28]? Neon-to-oxygen abundance ratio,
log
70- 73 F4.2 [-] e_log(Ne/O) [0.01/0.21]? Uncertainty in log(Ne/O)
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Berg et al. I. NGC628. 2015ApJ...806...16B 2015ApJ...806...16B Cat. J/ApJ/806/16
Croxall et al. II. NGC5194. 2015ApJ...808...42C 2015ApJ...808...42C Cat. J/ApJ/808/42
Croxall et al. III. NGC5457. 2016ApJ...830....4C 2016ApJ...830....4C Cat. J/ApJ/830/4
Berg et al. IV. NGC3184. 2020ApJ...893...96B 2020ApJ...893...96B This catalog
Skillman et al. V. M101. 2020ApJ...894..138S 2020ApJ...894..138S
Rogers et al. VI. NGC2403. 2021ApJ...915...21R 2021ApJ...915...21R Cat. J/ApJ/915/21
Rogers et al. VII. M33. 2022ApJ...939...44R 2022ApJ...939...44R Cat. J/ApJ/939/44
Berg et al. VIII. M101. 2024ApJ...971...87B 2024ApJ...971...87B
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 05-Oct-2021