2014A&A...561A..33I


Query : 2014A&A...561A..33I

2014A&A...561A..33I - Astronomy and Astrophysics, volume 561A, 33-33 (2014/1-1)

Multi-wavelength study of 14000 star-forming galaxies from the Sloan Digital Sky Survey.

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

Abstract (from CDS):

We studied a large sample of ∼14000 dwarf star-forming galaxies with strong emission lines. These low-metallicity galaxies with oxygen abundances of 12+logO/H ∼7.4-8.5 are selected from the Sloan Digital Sky Survey (SDSS) and distributed in the redshift range of z ∼0-0.6. We modelled spectral energy distributions (SED) of all galaxies, which were based on the SDSS spectra in the visible range of 0.38 µm-0.92 µm and included both the stellar and ionised gas emission. These SEDs were extrapolated to the UV and mid-infrared ranges to cover the wavelength range of 0.1 µm-22 µm. The SDSS spectroscopic data were supplemented by photometric data from the GALEX, SDSS, 2MASS, WISE, IRAS, and NVSS all-sky surveys. Using these data, we derived global characteristics of the galaxies, such as their element abundances, luminosities, and stellar masses. The luminosities and stellar masses range within the sample over ∼5 orders of magnitude, thereby linking low-mass and low-luminosity blue compact dwarf galaxies to luminous galaxies, which are similar to high-redshift Lyman-break galaxies. It was found that the luminosity L(Hβ) of the Hβ emission line, a characteristic of the youngest stellar population with an age of a few Myr, is correlated with luminosities in other wavelength ranges. This implies that the most recent burst of star formation makes a significant contribution to the emission in the visible range and dominates in other wavelength ranges. It was also found that the contribution of the young population to the galaxy luminosity is higher for galaxies with higher L(Hβ) and higher equivalent widths EW(Hβ). We found 20 galaxies with very red WISE mid-infrared m(3.4 µm)-m(4.6 µm) colour (≥2 mag), which suggests the important contribution of the hot (with a temperature of several hundred degree) dust emission in these galaxies. Our analysis of the balance between the luminosity in the WISE bands that covered a wavelength range of 3.4 µm-22 µm and the luminosity of the emission absorbed at shorter wavelengths showed that the luminosity of the hot dust emission is increased with increasing L(Hβ) and EW(Hβ). We demonstrated that the emission emerging from young star-forming regions is the dominant dust-heating source for temperatures to several hundred degrees in the sample star-forming galaxies.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: starburst - galaxies: ISM - galaxies: abundances

VizieR on-line data: <Available at CDS (J/A+A/561/A33): table2.dat table3.dat>

Simbad objects: 99

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Number of rows : 99
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SHOC 28 EmG 00 42 36.9325787876 +16 02 02.737643789           ~ 4 0
2 IRAS 01197+0044 EmG 01 22 18.114 +01 00 25.77   15.89       ~ 26 0
3 [VV2003c] J013258.5-085337 Sy1 01 32 58.542 -08 53 37.82     19.21     ~ 8 0
4 2SLAQ J013502.74-001431.0 G 01 35 02.749 -00 14 31.07           ~ 3 0
5 IRAS F01329+1439 SBG 01 35 37.564 +14 55 10.98           ~ 5 0
6 2SLAQ J020223.50-002727.9 G 02 02 23.513 -00 27 27.92           ~ 3 0
7 SHOC 131 H2G 02 39 00.7883639675 +00 18 35.935016428           ~ 3 0
8 SHOC 148 Sy1 03 03 21.4140573561 -07 59 23.198200042     19.61     ~ 28 0
9 SHOC 162 Sy1 03 27 50.147 +01 01 34.96     19.35     ~ 4 0
10 SDSS J033319.20+001731.3 EmG 03 33 19.2066525825 +00 17 31.417215674           ~ 3 0
11 SBSG 0335-052B G 03 37 44.04 -05 02 40.2   16.77 16.65   16.79 ~ 155 1
12 LEDA 139023 H2G 07 29 30.2980464784 +39 49 41.644904690           ~ 11 0
13 SDSS J074041.04+320941.7 G 07 40 41.044 +32 09 41.71           ~ 2 0
14 SDSS J080816.90+281431.1 G 08 08 16.9063507097 +28 14 31.087510018           ~ 1 0
15 SDSS J081747.65+401449.3 G 08 17 47.6293562758 +40 14 49.318946576           ~ 2 0
16 [VV2003c] J082001.7+505039 Sy1 08 20 01.721 +50 50 39.13     19.50     ~ 11 0
17 3XMM J082247.4+224145 G 08 22 47.6719030299 +22 41 44.101339545           ~ 14 0
18 SDSS J083654.91+313002.0 G 08 36 54.912 +31 30 02.06           ~ 1 0
19 SDSS J084034.10+134451.3 EmG 08 40 34.1094521237 +13 44 51.402164813           ~ 3 0
20 SDSS J084844.50+510626.7 Sy1 08 48 44.5077003628 +51 06 26.752423765     19.85     ~ 3 0
21 2MASX J08490553+1114474 AGN 08 49 05.397 +11 14 45.84           ~ 11 0
22 SDSS J085221.71+121651.7 EmG 08 52 21.715 +12 16 51.72           ~ 10 0
23 SDSS J092728.67+174018.7 Q? 09 27 28.6745679729 +17 40 18.718695571           ~ 7 0
24 SDSS J092810.51+150227.9 Sy1 09 28 10.5225784035 +15 02 27.956368283           ~ 3 0
25 SDSS J093424.08+222522.6 G 09 34 24.0884551452 +22 25 22.633988974           ~ 5 0
26 SDSS J093623.28+090001.0 EmG 09 36 23.2828268920 +09 00 01.021671195           ~ 2 0
27 2MASX J09491796+1750444 AGN 09 49 17.9487265198 +17 50 45.015985936   15.7       ~ 11 0
28 SDSS J101157.08+130822.0 EmG 10 11 57.0872280368 +13 08 22.045010646           ~ 7 0
29 SDSS J101803.24+410621.0 Q? 10 18 03.243 +41 06 21.09           ~ 10 0
30 SDSS J101855.46+515527.8 EmG 10 18 55.463 +51 55 27.84           ~ 3 0
31 2MASS J10235916+2421066 SBG 10 23 59.2187712693 +24 21 06.397661956           ~ 4 0
32 SDSS J103449.23+115550.3 Sy1 10 34 49.234 +11 55 50.31           ~ 3 0
33 SDSS J104645.75+302330.9 G 10 46 45.757 +30 23 30.92           ~ 2 0
34 SDSS J104755.92+073951.2 Sy1 10 47 55.9261965913 +07 39 51.229156062   20.04 19.81     ~ 10 1
35 SDSSCGB 21027.1 EmG 10 50 32.512 +15 38 06.32           ~ 10 0
36 SDSS J110120.35+402242.3 G 11 01 20.351 +40 22 42.33           ~ 1 0
37 SDSS J111141.29+071308.4 G 11 11 41.3005035787 +07 13 08.567903086   19.2   19.1   ~ 2 0
38 SDSS J112637.76+380302.9 Q? 11 26 37.7723339092 +38 03 02.987958246           ~ 3 0
39 SDSS J113257.32+312831.8 G 11 32 57.2711822432 +31 28 31.872892385           ~ 2 0
40 SDSS J113527.96+602532.7 G 11 35 27.9575090624 +60 25 32.781046808           ~ 2 0
41 SDSS J114106.17+451539.4 G 11 41 06.1668236427 +45 15 39.643325762           ~ 2 0
42 SDSS J114348.29+324257.9 EmG 11 43 48.2997660578 +32 42 57.970333638           ~ 3 0
43 SDSS J114840.86+175633.0 EmG 11 48 40.8752102635 +17 56 32.992241532           ~ 5 0
44 SDSS J115135.32+375603.6 G 11 51 35.3244619076 +37 56 03.633993228           ~ 1 0
45 2dFGRS TGN447Z013 Sy1 11 51 52.093 +01 06 06.07   19.330 19.52 18.976   ~ 4 0
46 [ITS2007] 52790-1313-423 EmG 11 55 28.344 +57 39 51.94           ~ 10 0
47 Mrk 193 G 11 55 28.5 +57 39 44   16.5       ~ 58 0
48 SDSS J115816.36-020315.3 G 11 58 16.366 -02 03 15.30           ~ 2 0
49 SDSS J115922.11+134414.2 G 11 59 22.1176940914 +13 44 14.289925685           ~ 2 0
50 LEDA 3120683 EmG 12 01 22.3048965246 +02 11 08.573863810           ~ 29 0
51 SDSS J120149.89+280610.6 EmG 12 01 49.9196106320 +28 06 10.749659886           ~ 3 0
52 SDSS J120522.37+285648.5 EmG 12 05 22.3774225990 +28 56 48.336328788           ~ 3 0
53 SDSS J121903.98+152608.5 EmG 12 19 03.9837736479 +15 26 08.534277420           ~ 25 0
54 SDSS J122850.46+321909.3 G 12 28 50.468 +32 19 09.33           ~ 1 0
55 SDSS J123803.75+461820.1 EmG 12 38 03.7270454696 +46 18 19.499475497           ~ 4 0
56 LBQS 1242+1100 QSO 12 45 09.0443806831 +10 43 40.118646886     18.2     ~ 10 0
57 SDSS J124534.62+525441.6 G 12 45 34.625 +52 54 41.62           ~ 2 0
58 SDSS J124834.63+123402.9 Q? 12 48 34.6371259178 +12 34 02.983896253           ~ 18 0
59 6dFGS gJ125306.0-031300 AGN 12 53 05.965 -03 12 58.88   16.64   16.05   ~ 29 0
60 SDSS J125802.04+140537.8 G 12 58 02.0452955321 +14 05 37.784288274           ~ 1 0
61 SDSS J130805.97+253338.1 G 13 08 05.979 +25 33 38.14           ~ 1 0
62 2QZ J131115.0-002758 EmG 13 11 15.0423941306 -00 27 57.857979382   20.26       ~ 4 0
63 SDSS J131514.04+261841.3 G 13 15 14.046 +26 18 41.35           ~ 2 0
64 SDSS J131847.08+033656.5 G 13 18 47.0861342972 +03 36 56.505479413           ~ 2 0
65 SDSS J132151.93+470835.9 H2G 13 21 51.946 +47 08 35.89           ~ 3 0
66 2QZ J132347.5-013252 EmG 13 23 47.4577651938 -01 32 52.017047577           ~ 30 0
67 SDSS J132734.45+615102.9 G 13 27 34.451 +61 51 02.95           ~ 1 0
68 SDSS J133446.28+534927.5 EmG 13 34 46.2794762764 +53 49 27.600052468           ~ 2 0
69 SDSS J134141.61+350214.0 G 13 41 41.614 +35 02 14.04           ~ 7 0
70 2MASX J13470695+3456238 EmG 13 47 06.9230137050 +34 56 24.071896289   16.80       ~ 12 0
71 SDSS J134723.56+311254.3 EmG 13 47 23.5720468957 +31 12 54.433334030           ~ 3 0
72 SDSS J135434.24+214953.8 EmG 13 54 34.248 +21 49 53.82           ~ 3 0
73 SDSS J141843.40+280957.4 G 14 18 43.3700534304 +28 09 57.220602096           ~ 2 0
74 FIRST J143055.9+480202 rG 14 30 55.911 +48 02 01.60           ~ 3 0
75 SDSS J143757.17+171920.5 EmG 14 37 57.1674099180 +17 19 20.579313716           ~ 2 0
76 SDSS J143905.23+245353.3 G 14 39 05.2367430576 +24 53 53.319961269           ~ 3 0
77 SHOC 489 Sy1 14 55 33.681 +00 36 57.34     18.89     ~ 4 0
78 LIRAS J145735.11+223202.4 AGN 14 57 35.1471572320 +22 32 01.902381520           ~ 21 0
79 SDSS J150310.42+184308.7 G 15 03 10.428 +18 43 08.79           ~ 3 0
80 SDSS J151408.63+385207.3 AGN 15 14 08.6332175523 +38 52 07.342959144   20.54 20.06     ~ 8 0
81 NAME CG 1517+39 EmG 15 19 47.088 +39 45 36.65   16.75 16.12     ~ 38 1
82 SDSS J151947.15+394537.8 G 15 19 47.150 +39 45 37.86           ~ 1 0
83 SDSS J153433.36+145447.5 EmG 15 34 33.359 +14 54 47.55           ~ 3 0
84 SDSS J153737.27+584740.5 Q? 15 37 37.2387932944 +58 47 40.469909741           ~ 4 0
85 SDSS J154101.31+175334.0 G 15 41 01.3179130494 +17 53 34.037693485           ~ 1 0
86 SDSS J154120.01+453619.1 EmG 15 41 20.0212793581 +45 36 19.161762711           ~ 4 0
87 SDSS J155516.41+354324.7 BiC 15 55 16.4173982197 +35 43 24.640800498           ~ 3 0
88 SHOC 522 H2G 15 59 57.389 +00 47 41.07           ~ 2 0
89 SDSS J160436.66+081959.1 Q? 16 04 36.6581942333 +08 19 59.132499194           ~ 4 0
90 SDSS J161606.66+213817.5 EmG 16 16 06.6696329451 +21 38 17.586624891           ~ 2 0
91 SDSS J162827.53+305453.6 EmG 16 28 27.535 +30 54 53.65           ~ 3 0
92 SDSS J163937.26+270750.2 G 16 39 37.2761174985 +27 07 50.166334821           ~ 2 0
93 SDSS J171958.30+303735.7 G 17 19 58.305 +30 37 35.71           ~ 1 0
94 SDSS J204929.07+000923.8 G 20 49 29.079 +00 09 23.80           ~ 2 0
95 2MASS J22122017+0033409 * 22 12 20.2207095937 +00 33 40.813294242           ~ 1 0
96 SDSS J221523.05+000246.7 EmG 22 15 23.0457469430 +00 02 46.636400219 19.9076       19.1699 ~ 6 0
97 HS 2236+1344 bCG 22 38 31.1190793853 +14 00 29.769874980           ~ 35 0
98 SDSS J230838.24+212139.1 G 23 08 38.243 +21 21 39.11           ~ 1 0
99 SDSS J231812.99-004126.1 Sy1 23 18 12.995 -00 41 26.10     19.28     ~ 11 0

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2021.08.04-02:04:57

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