1999MNRAS.304..225M

Query : 1999MNRAS.304..225M

1999MNRAS.304..225M - Mon. Not. R. Astron. Soc., 304, 225-234 (1999/April-1)

The near-infrared fundamental plane of elliptical galaxies.

MOBASHER B., GUZMAN R., ARAGON-SALAMANCA A. and ZEPF S.

Abstract (from CDS):

Near-infrared (2.2 µm) observations of a sample of 48 elliptical galaxies in the Coma cluster have been carried out and used to study the near-infrared Fundamental Plane (FP) of ellipticals in this cluster. An rms scatter of 0.072 dex is found for this relation, similar to that of its optical counterpart, using the same sample of galaxies. This corresponds to an uncertainty of 18 per cent in distances to individual galaxies derived from this relation. The sensitivity of the near-infrared FP to the star formation or changes in metallicity and stellar population among the ellipticals is explored and found to be small, although a likely source of scatter in this relation is contributions from the asymptotic giant branch (AGB) population to the near-infrared light. Allowing for observational uncertainties, we find an intrinsic scatter of 0.060 dex in the near-infrared FP. The cluster galaxies presented here provide the zero-point for the peculiar velocity studies, using the near-infrared FP.

Changes in the slopes of the D–σ and L–σ relations of ellipticals between the optical and near-infrared wavelengths are investigated and found to be due to variations in metallicity or age (or a combination of them). However, it is not possible to disentangle the effects of age and metallicity in these relations.

We find M/L∝Mα with α=0.18±0.01 in the near-infrared and α=0.23±0.01 at optical wavelengths, using the same sample of galaxies. This relation is interpreted as being due to a mass–metallicity effect or changes in age or the initial mass function slope with mass. Using evolutionary population synthesis models, we find that the effects of age and metallicity decouple in the (M/L)K versus Mg2 and (M/L)K versus (V-K) diagrams. The models suggest that the observed trends in these relations may be due to an age sequence, while metallicity mainly contributes to the scatter.


Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): galaxies: clusters: individual: Coma - galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - galaxies: photometry - galaxies: stellar content - infrared: galaxies

CDS comments: Table 1: galaxies format 'DFFF-NNN' misprint for 'Z FFF-NNN' (Zwicky galaxies)

Simbad objects: 49

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Number of rows : 49
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 IC 3618 GiG 12 39 17.1257804112 +26 40 39.972372780   15.5       ~ 42 0
2 Z 159-43 GiG 12 39 18.9012835104 +27 46 24.663003852   15.3       ~ 44 0
3 NGC 4673 GiG 12 45 34.6697689368 +27 03 38.999971728   13.7       ~ 85 0
4 Z 159-83 EmG 12 49 42.2824118760 +26 53 31.218447156   14.9       ~ 57 0
5 Z 159-89 GiG 12 50 54.0392305128 +27 50 30.469067772   14.8       ~ 56 0
6 NGC 4789 rG 12 54 19.0044627120 +27 04 05.008348776   13.12 12.10     ~ 139 2
7 NGC 4807 GiP 12 55 29.1008459472 +27 31 17.156306460   14.50 13.50     ~ 105 1
8 IC 3900 LIN 12 55 41.2970309376 +27 15 02.778023088   14.8       ~ 74 0
9 NGC 4816 GiG 12 56 12.1508733240 +27 44 43.773192276 14.25 13.80 12.84     ~ 145 1
10 Z 160-23 GiG 12 56 19.7946494520 +27 45 03.791146356   15.5       ~ 61 0
11 Z 160-27 GiC 12 56 26.6281275576 +27 49 50.374988076   15.6       ~ 53 0
12 NGC 4817 GiC 12 56 29.8118142816 +27 56 23.999503596   15       ~ 47 0
13 NGC 4824 LIN 12 56 34.1917941432 +27 32 20.298306732   15       ~ 61 0
14 NGC 4827 LIN 12 56 43.5187101000 +27 10 43.654438128   13.90 12.91     ~ 125 1
15 Z 160-37 GiG 12 57 09.4184229096 +27 27 59.137216200   15.0       ~ 84 0
16 NGC 4839 BiC 12 57 24.3563164776 +27 29 52.203087132 13.56 13.02 12.06     ~ 482 3
17 NGC 4841 LIN 12 57 31.978 +28 28 36.86   13.5       ~ 154 0
18 NGC 4840 LIN 12 57 32.8380921120 +27 36 37.243946592   14.8       ~ 115 0
19 Z 160-49 GiG 12 57 48.6632127528 +28 10 49.480506876   15.5       ~ 78 0
20 2MASX J12575392+2829594 GiC 12 57 53.9421825408 +28 29 59.362304424   15       ~ 46 0
21 2MASX J12585523+2757529 GiC 12 58 55.2555720768 +27 57 52.976652984 16.78 16.505 15.39 15.01 14.264 ~ 82 0
22 NGC 4864 GiG 12 59 13.129 +27 58 36.91 15.338 14.8 13.872 13.321 12.594 ~ 136 0
23 NGC 4867 GiG 12 59 15.2505719952 +27 58 14.616353712 15.60 15.5 14.14 13.969 13.213 ~ 129 0
24 NGC 4869 EmG 12 59 23.3588349024 +27 54 41.731884360 15.03 14.9 13.52 13.292 12.536 ~ 286 0
25 LEDA 44594 EmG 12 59 26.5981818744 +27 59 54.533097708 17.532 17.181 15.87 15.52 15.052 ~ 76 0
26 NGC 4872 AGN 12 59 34.1212116072 +27 56 48.678716616 15.58 14.7 14.10 14.092 13.423 ~ 141 0
27 NGC 4874 LIN 12 59 35.7093764280 +27 57 33.293892204 13.01 13.7 12.71 12.27 11.386 ~ 814 3
28 Z 160-233 G 12 59 42.3031814928 +27 55 29.073263772 17.64 16.553 15.42 15.051 14.373 ~ 99 0
29 LEDA 44656 G 12 59 43.7289109656 +27 59 40.858551456 16.53 16.384 15.15 14.832 14.154 ~ 96 0
30 NGC 4876 LIN 12 59 44.4043327032 +27 54 44.883805032 15.61 15.1 14.18 13.992 13.333 ~ 154 0
31 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
32 2MASX J12595511+2807422 GiC 12 59 55.0983190896 +28 07 42.060679572 16.70 15 15.33     ~ 86 0
33 NGC 4886 EmG 13 00 04.4494334064 +27 59 15.306472032 15.595 15.1 14.294 13.712 13.092 ~ 134 0
34 IC 4011 G 13 00 06.3940488048 +28 00 14.849196120 16.37 16.207 15.05 14.661 14.002 ~ 120 0
35 IC 4012 G 13 00 07.9959855216 +28 04 42.812545800 16.09 15.948 14.64 14.362 13.655 ~ 124 0
36 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 742 1
37 NGC 4895A EmG 13 00 09.1231203816 +28 10 13.436530176 16.33 15.6 14.94     ~ 98 0
38 IC 4021 LIN 13 00 14.7492904032 +28 02 28.679693064 16.12 15.974 14.75 14.451 13.783 ~ 125 0
39 2MASX J13002689+2730556 GiC 13 00 26.8586825136 +27 30 56.170117944   15       ~ 52 0
40 NGC 4906 G 13 00 39.7603737720 +27 55 26.243500044 15.50 15.2 14.08 13.822 13.144 ~ 136 0
41 IC 4051 EmG 13 00 54.4630403184 +28 00 27.502143300 15.04 14.8 13.50 13.003 12.305 ~ 218 0
42 2MASX J13012280+2811456 GiC 13 01 22.7807820912 +28 11 45.754464732   15       ~ 51 0
43 IC 843 LIN 13 01 33.5886614256 +29 07 49.984080384   14.62 13.84 15.24   ~ 88 1
44 Z 160-100 LIN 13 01 50.2187654184 +27 53 36.859795296   15.5       ~ 71 0
45 NGC 4926 LIN 13 01 53.7302453520 +27 37 28.027389360   14.1       ~ 159 0
46 NGC 4927 rG 13 01 57.5896111896 +28 00 20.994585624   14.8       ~ 89 0
47 IC 4133 GiG 13 03 50.7943495248 +27 59 18.107795904   15.4       ~ 60 0
48 NGC 4971 GiG 13 06 54.9612201144 +28 32 52.931042700   15.0       ~ 57 0
49 Z 160-159 GiG 13 12 07.9260850728 +27 19 49.936216224   15.0   13.47   ~ 41 0

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