2007ApJ...660.1215T


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST15:48:35

2007ApJ...660.1215T - Astrophys. J., 660, 1215-1231 (2007/May-2)

Far-infrared Spitzer observations of elliptical galaxies: evidence for extended diffuse dust.

TEMI P., BRIGHENTI F. and MATHEWS W.G.

Abstract (from CDS):

Far-infrared Spitzer observations of elliptical galaxies are inconsistent with simple steady state models of dust creation in red giant stars and destruction by grain sputtering in the hot interstellar gas at T∼107 K. The flux at 24 µm correlates with optical fluxes, suggesting that this relatively hot dust is largely circumstellar. But fluxes at 70 and 160 µm do not correlate with optical fluxes. Elliptical galaxies with similar L_B_ have luminosities at 70 and 160 µm (L70and L160) that vary over a factor of ∼100, implying an additional source of dust unrelated to that produced by ongoing local stellar mass loss. Neither L70/LB nor L160/LB correlate with the stellar age or metallicity. Optical line fluxes from warm gas at T∼104 K correlate weakly with L70 and L160, suggesting that the dust may be responsible for cooling this gas. Many normal elliptical galaxies have emission at 70 µm that is extended to 5-10 kpc. Extended far-infrared emission with sputtering lifetimes of ∼108 yr is difficult to maintain by mergers with gas-rich galaxies. Instead, we propose that this cold dust is buoyantly transported from reservoirs of dust in the galactic cores, which are supplied by mass loss from stars in the core. Intermittent energy outbursts from AGNs can drive the buoyant outflow.

Abstract Copyright:

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: ISM - Infrared: Galaxies - Infrared: ISM

Simbad objects: 51

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Number of rows : 51

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 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 400 3
2 NGC 533 GiG 01 25 31.432 +01 45 33.57   13.1 14.11     ~ 209 0
3 NGC 584 GiP 01 31 20.755 -06 52 05.02 11.93 11.44 10.48     ~ 370 2
4 NGC 596 GiG 01 32 51.906 -07 01 53.54   11.5       ~ 230 0
5 NGC 636 GiG 01 39 06.529 -07 30 45.37   12.5       ~ 181 0
6 2E 0150.5-1358 ClG 01 53 00.40 -13 44 18.0           ~ 386 0
7 NGC 720 GiG 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 494 0
8 NGC 855 GiG 02 14 03.612 +27 52 37.82 14.19 13.56 12.75 12.40   ~ 198 1
9 NGC 1377 GiG 03 36 39.077 -20 54 08.14   13.38   12.12   ~ 197 0
10 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1475 1
11 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 261 0
12 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 679 1
13 NGC 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 536 1
14 NGC 1700 GiG 04 56 56.347 -04 51 56.64   12   11.14   ~ 333 1
15 NGC 2325 AGN 07 02 40.4026621 -28 41 50.047941   12.17   10.46   ~ 107 0
16 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 471 2
17 NGC 2974 Sy2 09 42 33.267 -03 41 56.82   12.19   10.77   ~ 416 0
18 NGC 2986 GiG 09 44 16.044 -21 16 41.84   11.60 10.93 9.96   ~ 158 0
19 NGC 3265 GiG 10 31 06.768 +28 47 47.98   13.87 13.54     ~ 139 1
20 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1397 0
21 NGC 3557 rG 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 260 2
22 NGC 3610 GiG 11 18 25.276 +58 47 10.49   11.4       ~ 287 0
23 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 405 1
24 NGC 3962 LIN 11 54 40.104 -13 58 29.95   13.16 12.16 11.15   ~ 145 0
25 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 401 2
26 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 806 0
27 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6011 0
28 IC 3370 LIN 12 27 37.310 -39 20 16.13   11.99 12.12 10.39   ~ 144 0
29 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1989 2
30 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 941 2
31 NGC 4589 LIN 12 37 25.0 +74 11 31   12.0       ~ 268 1
32 M 59 GiG 12 42 02.322 +11 38 48.95   11.0       ~ 667 0
33 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1051 1
34 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1270 0
35 NGC 4660 GiP 12 44 31.9848549289 +11 11 25.730688043   12.1       ~ 401 0
36 NGC 4697 GiG 12 48 35.8992791099 -05 48 02.497675635   10.97   9.83   ~ 814 0
37 NGC 4696 BiC 12 48 49.277 -41 18 39.92   11.21   10.7   ~ 459 3
38 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 993 2
39 NGC 4915 GiG 13 01 28.228 -04 32 47.04   14   11.86   ~ 72 0
40 NGC 5018 GiP 13 13 01.000 -19 31 05.87   11.71   10.31   ~ 288 1
41 NGC 5022 GiP 13 13 30.8019818712 -19 32 47.864229512   13.72   12.33   ~ 82 1
42 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 172 0
43 NGC 5044 BiC 13 15 23.969 -16 23 08.00   11.9   10.74   ~ 462 0
44 NGC 5077 GiP 13 19 31.66964077 -12 39 25.0754790   13.87 12.85 11.30   ~ 277 0
45 NGC 5322 SyG 13 49 15.24 +60 11 25.8   11.3       ~ 386 2
46 NGC 5557 GiG 14 18 25.708 +36 29 37.28   12.2       ~ 200 0
47 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 591 1
48 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 790 1
49 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 279 0
50 NGC 6703 G 18 47 18.8165361086 +45 33 02.284879274   12.29 11.34     ~ 209 0
51 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 413 0

    Equat.    Gal    SGal    Ecl

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2021.04.19-15:48:35

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