2005MNRAS.363..769S

Query : 2005MNRAS.363..769S

2005MNRAS.363..769S - Mon. Not. R. Astron. Soc., 363, 769-800 (2005/November-1)

Dark matter in early-type galaxies: dynamical modelling of IC 1459, IC 3370, NGC 3379 and NGC 4105.

SAMUROVIC S. and DANZIGER I.J.

Abstract (from CDS):

We analyse long-slit spectra of four early-type galaxies which extend from ∼1 to 3 effective radii: IC 1459; IC 3370; NGC 3379 and NGC 4105. We have extracted the full line-of-sight velocity distribution (in the case of NGC 3379 we also used data from the literature), which we model using the two-integral approach. Using two-integral modelling, we find no strong evidence for dark haloes, but the fits suggest that three-integral modelling is necessary. We also find that the inferred constant mass-to-light ratio in all the four cases is typical for early-type galaxies. Finally, we also discuss the constraints on the mass-to-light ratio, which can be obtained using X-ray haloes in the case of IC 1459, NGC 3379 and NGC 4105, and compare the estimated values with the predictions from the dynamical modelling.

Abstract Copyright: 2005 RAS

Journal keyword(s): galaxies: elliptical and lenticular - galaxies: kinematics and dynamics - galaxies: ISM - X-rays - galaxies: structure - dark matter

VizieR on-line data: <Available at CDS (J/MNRAS/363/769): tables A1 to A6, B1 to B7>

Simbad objects: 34

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Number of rows : 34
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 499 LIN 01 23 11.4954761664 +33 27 36.656232300   13.0 12.3     ~ 181 0
2 NGC 507 rG 01 23 39.950 +33 15 22.22   13.0       ~ 459 1
3 BAX 028.2522-13.7387 ClG 01 53 00.40 -13 44 18.0           ~ 389 0
4 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
5 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
6 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
7 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
8 NGC 1461 EmG 03 48 27.1307092296 -16 23 34.248819300   12.85       ~ 87 0
9 NGC 1700 EmG 04 56 56.3160873072 -04 51 56.794713228   12   11.14   ~ 356 1
10 NGC 2320 GiG 07 05 42.0152480592 +50 34 51.563046000   13.9       ~ 107 0
11 * 20 Mon PM* 07 10 13.6815026472 -04 14 13.585055244 6.73 5.95 4.92 4.13 3.61 K0III 162 0
12 NGC 2434 EmG 07 34 51.1504542360 -69 17 02.996020032 12.82 12.50 11.26 10.84   ~ 192 1
13 NGC 2663 rG 08 45 08.14444454 -33 47 41.0643347   11.85 12.33 9.75   ~ 111 1
14 NGC 2974 Sy2 09 42 33.2918467632 -03 41 57.038311068   12.19   10.77   ~ 463 0
15 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
16 NGC 3706 EmG 11 29 44.4309190968 -36 23 28.745465928   12.20 11.08 10.56   ~ 149 0
17 NGC 4105 Sy2 12 06 40.767 -29 45 36.64   11.35 12.52 9.53   ~ 131 0
18 NGC 4106 GiP 12 06 45.5905 -29 46 06.190   11.61 11.35     ~ 76 0
19 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
20 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
21 IC 3370 Sy2 12 27 37.3278534168 -39 20 16.247588712   11.99 12.12 10.39   ~ 152 0
22 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
23 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 491 0
24 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
25 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
26 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 335 1
27 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
28 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
29 * 18 Lib PM* 14 58 53.5813630608 -11 08 38.462393832   7.146 5.857     K3-IIICN2 129 0
30 NGC 7097 EmG 21 40 12.9231946008 -42 32 21.879559932   12.66 11.71 11.21   ~ 123 0
31 NGC 7144 GiG 21 52 42.4890937656 -48 15 13.729791132   11.87 10.71 10.39   ~ 156 1
32 IC 1459 rG 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 652 2
33 NGC 7507 GiG 23 12 07.595 -28 32 22.70   11.60   9.98   ~ 184 0
34 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 438 1

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