2004ApJ...605..725M

Query : 2004ApJ...605..725M

2004ApJ...605..725M - Astrophys. J., 605, 725-741 (2004/April-3)

Hot interstellar gas and stellar energy feedback in the Antennae galaxies.

METZ J.M., COOPER R.L., GUERRERO M.A., CHU Y.-H., CHEN C.-H.R. and GRUENDL R.A.

Abstract (from CDS):

We have analyzed Chandra archival observations of the Antennae galaxies to study the distribution and physical properties of its hot interstellar gas. Eleven distinct diffuse X-ray emission regions are selected according to their underlying interstellar structures and star formation activity. The X-ray spectra of these regions are used to determine their thermal energy content and cooling timescales. Young star clusters in these regions are also identified and their photometric measurements are compared to evolutionary stellar population synthesis models to assess their masses and ages. The cluster properties are then used to determine the stellar wind and supernova energies injected into the interstellar medium (ISM). Comparisons between the thermal energy in the hot ISM and the expected stellar energy input show that young star clusters are sufficient to power the X-ray-emitting gas in some, but not all, active star formation regions. Super star clusters, with masses ≥1x105 M☉, heat the ISM, but the yield of hot interstellar gas is not directly proportional to the cluster mass. Finally, there exist diffuse X-ray emission regions that do not show active star formation or massive young star clusters. These regions may be powered by field stars or low-mass clusters formed within the last ∼100 Myr.

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Journal keyword(s): Galaxies: Individual: NGC Number: NGC 4038 - Galaxies: Individual: NGC Number: NGC 4039 - Galaxies: Individual: Name: Antennae - Galaxies: Interactions - Galaxies: ISM - Galaxies: Star Clusters - X-Rays: Galaxies - X-Rays: ISM

Nomenclature: Table 1: [MCG2004] ANN (Nos D01-D11).

Simbad objects: 32

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Number of rows : 32
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 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
3 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
4 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 183 0
5 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
6 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 200 0
7 [WS95] 405A Cl* 12 01 50.460 -18 52 13.89     17.0     ~ 21 0
8 [MCG2004] D01 X 12 01 50.51 -18 52 17.9           ~ 1 1
9 [MCG2004] D02 X 12 01 50.55 -18 52 05.1           ~ 1 1
10 [MCG2004] D03 X 12 01 51.29 -18 51 46.6           ~ 1 1
11 [CHP2004] J120153.0-185204 HXB 12 01 52.90 -18 52 03.2           ~ 13 0
12 [MCG2004] D05 X 12 01 52.96 -18 52 09.5           ~ 1 0
13 [WS95] 442 Cl* 12 01 52.97 -18 52 08.3           ~ 6 0
14 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
15 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
16 [MCG2004] D06 X 12 01 53.43 -18 51 53.0           ~ 1 0
17 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
18 [MCG2004] D11 X 12 01 54.08 -18 53 09.0           ~ 1 0
19 [MCG2004] D10 X 12 01 54.40 -18 53 04.1           ~ 1 1
20 [MCG2004] D07 X 12 01 54.47 -18 52 10.0           ~ 1 1
21 [BEK2006] Complex 6 Cl* 12 01 54.58 -18 52 07.2           ~ 5 0
22 [BEK2006] Complex 5 Cl* 12 01 54.71 -18 52 10.6           ~ 5 0
23 [MCG2004] D09 HXB 12 01 55.33 -18 52 48.9           ~ 2 1
24 [WS95] 342 Cl* 12 01 55.430 -18 52 19.45     19.4     ~ 18 0
25 [MCG2004] D08 X 12 01 56.13 -18 52 27.0           ~ 1 0
26 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
27 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
28 NGC 5461 HII 14 03 40.96 +54 19 02.4           ~ 195 0
29 NGC 5462 HII 14 03 53.0997760440 +54 22 06.493306404           ~ 85 0
30 NGC 5471 EmG 14 04 28.627 +54 23 52.84           ~ 250 1
31 [WZL99] 1-47 Cl* ~ ~           ~ 2 0
32 NAME Local Group GrG ~ ~           ~ 9325 0

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