2004MNRAS.348..406H

Query : 2004MNRAS.348..406H

2004MNRAS.348..406H - Mon. Not. R. Astron. Soc., 348, 406-420 (2004/February-3)

Chandra and XMM-Newton observations of NGC 4214: the hot interstellar medium and the luminosity function of dwarf starbursts.

HARTWELL J.M., STEVENS I.R. and STRICKLAND D.K.

Abstract (from CDS):

We present results from Chandra and XMM-Newton X-ray observations of NGC 4214, a nearby dwarf starburst galaxy containing several young regions of very active star-formation. Starburst regions are known to be associated with diffuse X-ray emission, and in this case the X-ray emission from the galaxy shows an interesting morphological structure within the galaxy, clearly associated with the central regions of active star formation. Of the two main regions of star formation in this galaxy, X-ray emission associated with the older is identified whereas little is detected from the younger, providing an insight into the evolutionary process of the formation of superbubbles around young stellar clusters. The spectra of the diffuse emission from the galaxy can be fitted with a two-temperature-component thermal model with kT = 0.14 keV and 0.52 keV, and analysis of this emission suggests that NGC 4214 will suffer a blow-out in the future.
The point source population of the galaxy has an X-ray luminosity function with a slope of -0.76. This result, together with those for other dwarf starburst galaxies (NGC 4449 and NGC 5253), was added to a sample of luminosity functions for spiral and starburst galaxies. The slope of the luminosity function of dwarf starbursts is seen to be similar to that of their larger counterparts and clearly flatter than those seen in spirals. Further comparisons between the luminosity functions of starbursts and spiral galaxies are also made.

Abstract Copyright: 2004 RAS

Journal keyword(s): ISM: jets and outflows - galaxies: individual: NGC 4214 - galaxies: starburst - X-rays: galaxies

Nomenclature: Fig.1, Table 2: [HSS2004] NN (Nos 1-20).

Simbad objects: 39

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Number of rows : 39
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
3 NGC 1269 EmG 03 17 18.5785534752 -41 06 28.628735184 9.85 9.83 8.81 8.72   ~ 445 1
4 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
5 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
6 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
7 NGC 3077 GiP 10 03 19.0965510921 +68 44 01.556166166 11.23 10.85 10.14 9.74   ~ 808 0
8 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 777 0
9 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
10 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
11 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
12 NGC 4190 LSB 12 13 44.765 +36 38 02.49 13.88 13.40 13.25 12.86   ~ 224 0
13 [BWE2015] NGC 4214 35 AGN 12 15 11.7 +36 20 07           ~ 2 0
14 [HSS2004] 2 AGN 12 15 13.93 +36 20 15.0           ~ 2 0
15 [HSS2004] 3 HXB 12 15 26.35 +36 19 44.5           ~ 3 0
16 [HSS2004] 4 HXB 12 15 33.44 +36 18 59.7           ~ 3 0
17 [HSS2004] 5 HXB 12 15 34.38 +36 22 20.0           ~ 4 0
18 [HSS2004] 6 SNR 12 15 35.71 +36 19 37.3           ~ 2 0
19 [HSS2004] 7 X 12 15 36.86 +36 23 45.2           ~ 1 0
20 2MASS J12153725+3622190 HXB 12 15 37.2500846880 +36 22 19.081161012           ~ 4 0
21 [HSS2004] 9 HXB 12 15 38.15 +36 20 51.2           ~ 3 0
22 [OWB2005] NGC 4214 P3 HXB 12 15 38.25 +36 19 21.4           ~ 10 0
23 [HSS2004] 10 Cl* 12 15 38.2700 +36 19 46.290           ~ 8 0
24 NGC 4228 SBG 12 15 39.174 +36 19 36.80 10.63 10.30 9.93 9.74   ~ 1017 1
25 [HSS2004] 12 HXB 12 15 39.39 +36 20 55.4           ~ 3 0
26 NAME NGC 4214-I HII 12 15 39.686 +36 19 34.12           ~ 16 0
27 CXO J121540.0+361841 HXB 12 15 40.01 +36 18 41.1           ~ 2 0
28 NAME NGC 4214-II HII 12 15 40.7900 +36 19 09.260           ~ 16 0
29 [HSS2004] 14 HXB 12 15 40.86 +36 19 39.9           ~ 3 0
30 [HSS2004] 15 HXB 12 15 41.40 +36 21 14.7           ~ 4 1
31 [HSS2004] 16 HXB 12 15 44.76 +36 18 46.8           ~ 3 0
32 [HSS2004] 17 HXB 12 15 45.90 +36 21 37.5           ~ 3 0
33 [HSS2004] 18 X 12 15 46.61 +36 20 07.8           ~ 1 0
34 [HSS2004] 19 HXB 12 15 47.46 +36 21 25.4           ~ 3 0
35 [HSS2004] 20 HXB 12 15 49.24 +36 21 45.7           ~ 3 0
36 NGC 4449 EmG 12 28 11.118 +44 05 36.81 10.11 9.98 9.64 9.45   ~ 1192 1
37 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
38 NGC 5253 rG 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1421 4
39 IC 5332 GiG 23 34 27.488 -36 06 03.89 11.59 11.27 10.72 10.50 11.2 ~ 216 0

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