2013MNRAS.431.2006K


Query : 2013MNRAS.431.2006K

2013MNRAS.431.2006K - Mon. Not. R. Astron. Soc., 431, 2006-2016 (2013/May-2)

Polycyclic aromatic hydrocarbons in spatially resolved extragalactic star-forming complexes.

KHRAMTSOVA M.S., WIEBE D.S., BOLEY P.A. and PAVLYUCHENKOV Ya.N.

Abstract (from CDS):

The abundance of polycyclic aromatic hydrocarbons (PAHs) in low- and high-metallicity galaxies has been widely discussed since the time when detailed infrared data for extragalactic objects were first obtained. On the scales of entire galaxies, a smaller PAH abundance in lower metallicity galaxies is often observed. We study this relationship for star-forming regions in nearby galaxies, for a sample containing more than 200 Hii complexes, using spatially resolved observations from the Herschel Space Observatory and Spitzer Space Telescope. We use a model for the dust emission to estimate the physical parameters (PAH abundance, metallicity, ultraviolet radiation field, etc.) of these complexes. The same correlation of PAH abundance with metallicity, as seen for entire galaxies, is apparently preserved at smaller scales, at least when the Kobulnicky and Kewley metallicity calibration is used. We discuss possible reasons for this correlation, noting that traces of less effective PAH formation in low-metallicity asymptotic giant branch stars should be smeared out by radial mixing in galactic discs. Effective destruction by the harder and more intensive ultraviolet field in low-metallicity environments is qualitatively consistent with our data, as the ultraviolet field intensity, derived from the infrared photometry, is indeed smaller in Hii complexes with lower metallicity.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): galaxies: photometry - infrared: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/431/2006): table1.dat refs.dat table2.dat table3.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10316 1
2 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1571 1
3 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 735 1
4 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1259 3
5 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6373 1
6 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1701 1
7 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 729 2
8 UGC 4459 GiG 08 34 07.29 +66 10 54.6 15.39 15.03 14.70 14.49   ~ 314 2
9 UGC 5139 LSB 09 40 32.33 +71 10 56.0 14.53 14.00 13.66 13.41   ~ 344 1
10 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 676 0
11 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 855 1
12 IC 2574 G 10 28 23.6148831408 +68 24 43.440012756 11.70 11.07 10.87 10.74   ~ 634 1
13 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1032 2
14 NGC 3521 LSB 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 755 2
15 NGC 3621 AGN 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 537 3
16 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 846 2
17 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1747 2
18 NGC 4559 H2G 12 35 57.6402869976 +27 57 35.859278160   10.46 10.01     ~ 579 1
19 NGC 4725 Sy2 12 50 26.5716367992 +25 30 02.733090588   13.45 12.44     ~ 653 2
20 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1311 2
21 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1139 2
22 CCM 91 HII 13 29 47.087 +47 13 38.79           ~ 7 0
23 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4099 4
24 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2728 2
25 M 16 OpC 18 18 45 -13 47.5   6.58 6.0     ~ 989 2
26 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1500 0
27 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2384 2
28 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1174 2
29 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1028 2

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2022.08.12-08:50:30

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