CDS

2013A&A...555A..90G

Query : 2013A&A...555A..90G

2013A&A...555A..90G - Astronomy and Astrophysics, volume 555A, 90-90 (2013/7-1)

The Mg II λ2797, λ2803 emission in low-metallicity star-forming galaxies from the SDSS.

GUSEVA N.G., IZOTOV Y.I., FRICKE K.J. and HENKEL C.

Abstract (from CDS):

We present 65 Sloan Digital Sky Survey (SDSS) spectra of 62 star-forming galaxies with oxygen abundances 12+logO/H∼7.5-8.4. Redshifts of selected galaxies are in the range z∼0.36-0.70. This allows us to detect the redshifted MgII λ2797, λ2803 emission lines. Our aim is to use these lines for the magnesium abundance determination. The Mg ii emission was detected in ∼2/3 of the galaxies. We find that the MgII λ2797 emission-line intensity follows a trend with the excitation parameterx= O2+/O that is similar to that predicted by CLOUDY photoionised HII region models, suggesting a nebular origin of MgII emission. The Mg/O abundance ratio is lower by a factor ∼2 than the solar ratio. This is probably the combined effect of interstellar Mg ii absorption and depletion of Mg onto dust. However, the effect of dust depletion in selected galaxies, if present, is small, by a factor of ∼2 lower than that of iron.

Abstract Copyright: ∼

Journal keyword(s): ISM: abundances - galaxies: abundances - galaxies: irregular - galaxies: evolution - galaxies: formation - galaxies: ISM

Simbad objects: 82

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Number of rows : 82
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 [VV2003c] J000614.9-090316 Sy1 00 06 14.9492474064 -09 03 16.571334096     19.81     ~ 1 0
2 2SLAQ J010105.90-005729.6 QSO 01 01 05.9065705704 -00 57 29.776126176           ~ 3 0
3 PHL 957 QSO 01 03 11.2741573824 +13 16 17.809871484   16.97 16.57     ~ 343 0
4 2SLAQ J010445.45+001325.2 G 01 04 45.453 +00 13 25.30           ~ 2 0
5 SDSS J014257.52+010824.5 G 01 42 57.5282366736 +01 08 24.479878632   18.6   18.9   ~ 2 0
6 SDSS J014947.59+010009.7 G 01 49 47.6005902192 +01 00 09.696395124           ~ 1 0
7 SDSS J015528.87-010747.0 G 01 55 28.8861504024 -01 07 47.002217376           ~ 1 0
8 SDSS J020747.98+004735.4 G 02 07 47.9902324800 +00 47 35.435991516           ~ 5 0
9 2SLAQ J023241.73-002123.3 G 02 32 41.7372032448 -00 21 23.387021316           ~ 2 0
10 [VV2003c] J030139.6-080645 Sy1 03 01 39.579 -08 06 45.31     22.08     ~ 1 0
11 2SLAQ J031959.81-010449.9 G 03 19 59.81304 -01 04 50.0196   18.9   19.1   ~ 3 0
12 SBSG 0335-052 bCG 03 37 44.04 -05 02 38.5     16.65     ~ 462 1
13 SDSS J034047.91-004848.1 G 03 40 47.917 -00 48 48.19           ~ 2 0
14 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1077 0
15 * 23 Ori SB* 05 22 50.0039865384 +03 32 40.051458204 3.99 4.86 5.00 5.05 5.23 B2IV/V 245 0
16 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16984 1
17 IC 418 PN 05 27 28.2059533560 -12 41 50.282287764   9.405 9.010 10.118   O7fp 1025 2
18 M 42 HII 05 35 17 -05 23.4           ~ 4024 0
19 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1160 2
20 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1955 1
21 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1511 0
22 * zet Vol * 07 41 49.2590323455 -72 36 21.956812196   4.977 3.944     G9IIIb 72 0
23 NGC 2440 PN 07 41 55.4 -18 12 32   11.469 10.104     ~ 650 2
24 SDSS J074754.22+314716.6 G 07 47 54.225 +31 47 16.66           ~ 1 0
25 SDSS J074947.99+314249.2 G 07 49 47.996 +31 42 49.20           ~ 1 0
26 SDSS J075643.77+305729.1 G 07 56 43.779 +30 57 29.19           ~ 1 0
27 SDSS J075727.88+314859.8 G 07 57 27.882 +31 48 59.86           ~ 1 0
28 [VV2010c] J080423.5+174825 QSO 08 04 23.5080 +17 48 25.124   21.82 21.43     ~ 4 0
29 SDSS J080759.23+400218.7 G 08 07 59.234 +40 02 18.76           ~ 1 0
30 QSO J0812+32 QSO 08 12 40.6859242632 +32 08 08.579336496   18.16 17.75     ~ 100 0
31 SDSS J081241.86+320046.3 G 08 12 41.860 +32 00 46.35           ~ 1 0
32 SDSS J081336.62+303935.6 G 08 13 36.623 +30 39 35.60           ~ 1 0
33 SDSS J081524.39+312936.0 G 08 15 24.3928420848 +31 29 36.003710976           ~ 1 0
34 SDSS J081706.28+315900.7 G 08 17 06.2867026776 +31 59 00.809994552           ~ 1 0
35 SDSS J083757.41+310840.4 G 08 37 57.417 +31 08 40.45           ~ 1 0
36 SDSS J083857.84+305750.2 G 08 38 57.849 +30 57 50.22           ~ 1 0
37 * zet Pyx PM* 08 39 42.4740344784 -29 33 39.904538472   5.777 4.872     G6IIIbCN-0.5 57 0
38 QSO B0841+129 BLL 08 44 24.2445546984 +12 45 46.526286780   18.28 18.5     ~ 118 0
39 SDSS J084431.92+324106.0 G 08 44 31.927 +32 41 06.00           ~ 1 0
40 SDSS J085558.30+031807.5 G 08 55 58.303 +03 18 07.50           ~ 1 0
41 QSO B0900+42 QSO 09 00 33.5091652824 +42 15 47.031009948   17.63 17.18     ~ 78 0
42 SDSS J090446.03+280605.6 G 09 04 46.035 +28 06 05.60           ~ 1 0
43 SDSS J091457.58+445110.3 G 09 14 57.5917715304 +44 51 10.408122468           ~ 1 0
44 SDSS J091523.10+334429.9 G 09 15 23.100 +33 44 29.91           ~ 1 0
45 SDSS J091810.89+330142.0 G 09 18 10.899 +33 01 42.09           ~ 1 0
46 SDSS J091828.34+333106.5 G 09 18 28.349 +33 31 06.53           ~ 1 0
47 * k Car * 09 20 56.8130707392 -62 24 16.681055508   5.733 4.800     G6III 46 0
48 SDSS J092238.44+333013.4 G 09 22 38.446 +33 30 13.41           ~ 1 0
49 SDSS J092549.13+270928.4 G 09 25 49.1364759504 +27 09 28.392287004           ~ 1 0
50 SDSS J095621.72+320354.8 G 09 56 21.7172658480 +32 03 54.780953904           ~ 1 0
51 SDSS J095724.74+331408.1 G 09 57 24.746 +33 14 08.15           ~ 1 0
52 SDSS J100059.49+332418.0 G 10 00 59.499 +33 24 18.00           ~ 1 0
53 SDSS J100221.47+322826.3 G 10 02 21.475 +32 28 26.35           ~ 1 0
54 SDSS J100758.99+044626.2 G 10 07 58.9941162168 +04 46 26.213503260           ~ 1 0
55 SDSS J104529.29+322532.0 G 10 45 29.2936263264 +32 25 32.334184092           ~ 1 0
56 SDSS J104839.02+635921.6 G 10 48 39.0436537608 +63 59 21.518500416           ~ 1 0
57 SDSS J105642.42+475850.8 G 10 56 42.4187114136 +47 58 50.858501880           ~ 1 0
58 PG 1101-264 QSO 11 03 25.2993421704 -26 45 15.808554720   16.08 16.02     ~ 246 0
59 SDSS J110854.80+634405.5 G 11 08 54.8078056728 +63 44 05.526372588           ~ 1 0
60 SDSS J111219.24+633148.8 G 11 12 19.245 +63 31 48.80           ~ 1 0
61 [HB2010] 2 G 11 28 47.6932815871 -03 17 17.425188477           ~ 2 0
62 SDSS J113527.96+602532.7 G 11 35 27.9567251928 +60 25 32.790673848           ~ 2 0
63 SDSS J113627.52-022317.8 G 11 36 27.522 -02 23 17.82           ~ 1 0
64 SDSS J121309.77+270538.5 G 12 13 09.7686543456 +27 05 38.493397500           ~ 1 0
65 QSO B1331+170 Bla 13 33 35.7827544072 +16 49 04.013500728   16.84 16.71 16.41   ~ 443 0
66 [VV2003c] J140806.0+022409 Sy1 14 08 06.0706412712 +02 24 09.004464036     20.35     ~ 1 0
67 SDSS J142001.22+262804.2 G 14 20 01.2231146448 +26 28 04.238641416           ~ 1 0
68 FIRST J143055.9+480202 rG 14 30 55.911 +48 02 01.60           ~ 3 0
69 SDSS J154418.79+330847.8 G 15 44 18.8006574456 +33 08 47.784876540           ~ 1 0
70 SDSS J154814.66+072710.1 G 15 48 14.6762988312 +07 27 10.070872092           ~ 1 0
71 SDSS J155516.41+354324.7 BiC 15 55 16.4186074008 +35 43 24.712886064           ~ 3 0
72 SDSS J155908.54+063438.8 QSO 15 59 08.5500124032 +06 34 38.940815244   20.50 20.21     ~ 3 0
73 SDSS J161642.63+205720.1 G 16 16 42.6275246784 +20 57 20.058509448           ~ 1 0
74 * zet Oph Be* 16 37 09.5390545 -10 34 01.529471 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1824 2
75 [VV2010c] J171600.9+274414 QSO 17 16 00.8743171224 +27 44 14.380721736   19.0 19.47 18.9   ~ 10 0
76 IC 4997 PN 20 20 08.7557973960 +16 43 53.698933380   11.94 11.15     [WC7/8] 543 0
77 2SLAQ J214551.40+004030.9 G 21 45 51.400 +00 40 30.99           ~ 2 0
78 2SLAQ J220840.37-010612.2 G 22 08 40.376 -01 06 12.30           ~ 2 0
79 SDSS J221145.43+011408.4 G 22 11 45.439 +01 14 08.47           ~ 1 0
80 2SLAQ J233436.21-004636.5 G 23 34 36.213 -00 46 36.54           ~ 2 0
81 SDSS J234809.07-004101.5 G 23 48 09.0753346080 -00 41 01.615094736           ~ 1 0
82 2SLAQ J235237.93+002558.8 G 23 52 37.942 +00 25 58.77           ~ 2 0

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2023.09.28-17:39:13

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