2003A&A...401..557P

Query : 2003A&A...401..557P

2003A&A...401..557P - Astronomy and Astrophysics, volume 401557-563 (2003/4-2)

On the oxygen abundance in our Galaxy.

PILYUGIN L.S., FERRINI F. and SHKVARUN R.V.

Abstract (from CDS):

The compilation of published spectra of Galactic HII regions with available diagnostic [OIII]λ4363 line information has been carried out. Our list contains 71 individual measurements of 13 HII regions in the range of galactocentric distances from 6.6 to 14.8kpc. The oxygen abundances in all the HII regions were recomputed in the same way, using the classic Te-method. The oxygen abundance at the solar galactocentric distance traced by those HII regions is in agreement with the oxygen abundance in the interstellar medium in the solar vicinity derived with high precision from the interstellar absorption lines towards stars. The derived radial oxygen abundance distribution was compared with that for HII regions from the Shaver et al. (1983MNRAS.204...53S) sample which is the basis of many models for the chemical evolution of our Galaxy. It was found that the original Shaver et al.'s oxygen abundances are overestimated by 0.2-0.3dex. Oxygen abundances in HII regions from the Shaver et al. sample have been redetermined with the recently suggested P-method. The radial distribution of oxygen abundances from the Shaver et al. sample redetermined with the P-method is in agreement with our radial distribution of (O/H)Te abundances.

Abstract Copyright: ∼

Journal keyword(s): galaxies: abundances - ISM: abundances - ISM: general - galaxies: individual: Milky Way Galaxy

CDS comments: In reflist, Caplan 2000 MNRAS, 311 : page 328 is a misprint for 317.

Simbad objects: 30

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Number of rows : 30
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 NGC 281 HII 00 52 25.1 +56 33 54           ~ 251 1
2 NGC 1491 HII 04 03 15.9 +51 18 54           ~ 117 0
3 SH 2-212 HII 04 40 36.52 +50 27 44.3           ~ 102 2
4 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
5 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
6 [SMN83] S252 1 PoC 06 09 37.7 +20 29 54           ~ 3 0
7 [SMN83] Rosette 1 PoC 06 33 45.3 +04 49 47           ~ 3 0
8 GAL 201.6+01.6 HII 06 36 36.3 +10 46 30           ~ 27 0
9 LBN 211.65-01.51 HII 06 45 28 +00 17.8           ~ 75 0
10 SH 2-301 HII 07 09 54.3 -18 29 53           ~ 51 0
11 NGC 2359 HII 07 18 30.000 -13 13 36.00           ~ 170 0
12 [SMN83] RCW 5 1 PoC 07 18 30.3 -13 15 33           ~ 3 0
13 SH 2-305 HII 07 30 04.1 -18 32 13           ~ 55 0
14 NGC 2467 OpC 07 52 18 -26 25.7           ~ 190 1
15 [SMN83] RCW 16 1 PoC 07 52 19.6 -26 26 46           ~ 3 0
16 GUM 10 HII 08 16 16.8 -35 37 58           ~ 32 0
17 DCld 264.3+01.5 DNe 08 54 42 -42 54.8           ~ 68 0
18 RCW 34 HII 08 56 28.1 -43 05 58   10.5 11.21     ~ 99 0
19 V* V391 Vel Or* 08 56 28.109952 -43 05 55.40028 12.61 12.71 11.73 11.50   O8/8.5V 83 1
20 GUM 25 HII 09 02 21.3 -48 41 55           ~ 30 0
21 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
22 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
23 M 8 OpC 18 03 37 -24 23.2           ~ 644 1
24 [SMN83] NGC 6604 2 PoC 18 17 26 -12 09.1           ~ 2 0
25 [SMN83] NGC 6604 1 PoC 18 17 40 -11 53.9           ~ 3 0
26 M 16 OpC 18 18 45.1 -13 47 31           ~ 1084 1
27 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
28 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 427 0
29 LBN 096.23+02.55 HII 21 28 42 +54 37.0           ~ 54 0
30 SH 2-128 HII 21 32 09.9 +55 52 53           ~ 173 1

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