2010ApJ...724..791P

Query : 2010ApJ...724..791P

2010ApJ...724..791P - Astrophys. J., 724, 791-798 (2010/November-3)

On the O/H, Mg/H, Si/H, and Fe/H gas and dust abundance ratios in galactic and extragalactic H II regions.

PEIMBERT A. and PEIMBERT M.

Abstract (from CDS):

We derive the Mg/H ratio in the Orion nebula and in 30 Doradus. We also derive the O/H and the Fe/O ratios in the extremely metal-poor galaxy SBS 0335-052 E. We estimate the dust depletions of Mg, Si, and Fe in Galactic and extragalactic H II regions. From these depletions we estimate the fraction of O atoms embedded in dust as a function of the O/H ratio. We find an increasing depletion of O with increasing O/H. The O depletion increases from about 0.08 dex, for the metal poorest H II regions known, to about 0.12 dex, for metal-rich H II regions. This depletion has to be considered to compare nebular with stellar abundances.

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Journal keyword(s): galaxies: abundances - galaxies: individual: SBS 0335-052 - galaxies: ISM - H II regions - ISM: abundances

Simbad objects: 13

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Number of rows : 13
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 SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 83 1
3 SBSG 0335-052B G 03 37 44.04 -05 02 40.2   16.77 16.65   16.79 ~ 220 1
4 SBSG 0335-052 AGN 03 37 44.06 -05 02 40.2     16.65     ~ 500 1
5 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
6 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 623 0
7 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
8 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
9 NGC 2363 AG? 07 28 29.59 +69 11 34.3   15.5       ~ 262 1
10 NGC 2363A HII 07 28 42.8 +69 11 21           ~ 588 3
11 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
12 LEDA 39402 AGN 12 17 17.093 -28 02 32.67   17       ~ 143 0
13 LEDA 140535 AGN 15 45 43.5456237456 +08 58 01.398139032     16.0     ~ 56 0

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