CDS

1998A&AS..130..267L

Query : 1998A&AS..130..267L

1998A&AS..130..267L - Astron. Astrophys., Suppl. Ser., 130, 267-283 (1998/June-1)

Star formation history of early-type galaxies in low density environments. II. Kinematics.

LONGHETTI M., RAMPAZZO R., BRESSAN A. and CHIOSI C.

Abstract (from CDS):

The present paper is a companion of two others dedicated one to the measurement of the line-strength indices (Longhetti et al.,1998A&AS..130..251L) and the second to trace back the star formation history of a sample of early-type galaxies by comparing observed indices to the predictions of new spectro-photometric models Longhetti et al. (1998b, Paper III). The sample of 51 early-type galaxies in low density environments is composed of two sub-sets of galaxies: 21 shell galaxies from the Malin & Carter (1983) catalogue (one of which shows double nucleous and has been considered as two separate objects) and 30 members of isolated interacting pairs from the Reduzzi & Rampazzo (1995ApL....30....1R) catalogue. Most of the objects show fine structures. The paper collects nuclear kinematic data together with the velocity and velocity dispersion curves of the stellar and gaseous components as a function of the distance from the galaxies centres. The galaxies heliocentric systemic velocity compares within -1±32km/s with RC3 data, while their central velocity dispersion compares within 9±9km/s, 10±27km/s and 2±33km/s with Gonzalez (1993, Ph .D. thesis), Davies et al. (1987ApJS...64..581D) and Carter et al. (1988MNRAS.235..813C) respectively. The detailed comparison between our velocity and velocity dispersion curves and those from several authors is discussed. 9 out of 22 shell galaxies nuclei show emission lines, 4 of which, using data in the literature, have line ratios characteristic of LINERs. 10 members of pairs out of 30 show emission lines. RR 331a has a Seyfert like nucleus, while for the remaining galaxies the ([O III] λ 5007)/Hβ ratio is characteristic of low ionization regions. In a small fraction of the objects the emission component is detectable outside the central value. None of the objects in the sample shows counter-rotation of the gaseous versus the stellar component. The two components appear associated, although, in two cases there is evidence that gas and stars lie on different planes. This latter phenomenon could be associated to accretion events. Emission lines in the central part of the RR 331a show a secondary component in the emission lines profile. E 2400100 has two nuclei embedded in the main body of the galaxy. The U-shape profile of the stellar velocity profile shows the ongoing interaction of the two nuclei. V/σ profile of shell galaxies is, finally, discussed in relation to the hypothesis of the accretion/merging origin of these galaxies.

Abstract Copyright: ∼

Journal keyword(s): galaxies: elliptical and lenticular - galaxies: interactions - galaxies: kinematics and dynamics

Simbad objects: 68

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Number of rows : 68
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022 		#notes
1 ESO 539-10 G 00 22 30.409 -19 39 42.43   16.42   15.19   ~ 5 0
2 IC 1609 G 00 59 46.621 -40 20 00.79   13.59   12.07   ~ 26 0
3 ESO 244-12 PaG 01 18 08.31 -44 27 43.4           ~ 82 1
4 MCG-07-03-014 GiP 01 18 08.370 -44 27 43.29   14.43   13.06   ~ 74 0
5 NGC 584 GiP 01 31 20.755 -06 52 05.02 11.93 11.44 10.48     ~ 372 2
6 ESO 297-34 GiG 01 56 36.6980716910 -39 14 41.495713326   14.55   13.40   ~ 24 0
7 NGC 813 G 02 01 36.113 -68 26 20.99   13.84   12.39   ~ 27 0
8 ESO 545-40 GiP 02 38 11.6836753482 -20 10 01.360816251   13.83   12.43   ~ 33 0
9 NGC 1210 G 03 06 45.3511248416 -25 42 58.843666434   13.70   12.54   ~ 38 0
10 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1256 1
11 NGC 1549 GiP 04 15 45.223 -55 35 32.50 11.22 10.48 9.79 9.08   ~ 227 1
12 NGC 1553 GiP 04 16 10.4711638537 -55 46 48.107262747 10.76 10.10 9.40 8.74   ~ 359 2
13 NGC 1570 GiG 04 22 08.948 -43 37 46.37   13.22   11.65   ~ 40 0
14 ESO 486-17 GiP 05 03 11.5034429623 -22 48 50.195430045   14.73   13.36   ~ 23 0
15 ESO 486-19 GiP 05 03 13.1591118979 -22 49 58.915305330   13.62   12.20   ~ 27 0
16 ESO 486-29 LIN 05 07 35.2416888997 -23 04 01.172131548   14.59   12.96   ~ 24 0
17 NGC 2865 GiG 09 23 30.205 -23 09 41.37   12.39 11.43 11.06   ~ 229 0
18 NGC 2945 AGN 09 37 41.111 -22 02 06.41   13.23   11.58   ~ 40 0
19 NGC 3051 GiG 09 53 58.6273449993 -27 17 11.034192464   12.79 15.0     ~ 49 0
20 NGC 3289 GiG 10 34 07.4191065461 -35 19 24.013630231   13.68 14.13 12.35   ~ 34 0
21 NGC 4105 LIN 12 06 40.767 -29 45 36.64   11.35 12.52 9.53   ~ 121 0
22 NGC 4106 GiP 12 06 44.7 -29 46 06   11.61 11.35     ~ 70 0
23 ESO 507-45 Sy1 12 55 35.694 -26 49 30.33   12.84   11.28   ~ 45 0
24 ESO 507-46 GiP 12 55 44.084 -26 48 33.62   13.96   12.64   ~ 33 0
25 NGC 5018 GiP 13 13 01.000 -19 31 05.87   11.71   10.31   ~ 289 1
26 ESO 386-4 G 14 40 29.1368284417 -35 07 24.173827125   13.74   12.07   ~ 25 0
27 ESO 274-6 GiP 15 16 09.950 -44 00 53.78   14.53   12.59   ~ 19 0
28 NAME Sacred Mushroom GiG 17 29 09.5867580003 -62 26 44.508184821   12.76   11.11   ~ 48 1
29 NGC 6734 GiG 19 07 14.3118393382 -65 27 42.620864181   13.75   12.22   ~ 23 0
30 NGC 6736 GiG 19 07 29.260 -65 25 42.78   14.31   12.85   ~ 21 0
31 NGC 6776 G 19 25 19.131 -63 51 36.68   13.19 11.99 11.59   ~ 85 0
32 ESO 283-19 GiP 19 51 19.9281286877 -44 52 38.529156372   14.82   13.63   ~ 15 0
33 ESO 283-20 G 19 51 26.323 -44 50 35.65   13.99   12.50   ~ 22 0
34 NGC 6849 G 20 06 15.608 -40 11 53.90   12.90       ~ 66 0
35 IC 5013 GiP 20 28 33.7939730456 -36 01 37.597945257   12.67   11.12   ~ 45 0
36 ESO 400-30 GiP 20 28 34.9507499975 -36 02 35.430775466   13.47   12.95   ~ 29 0
37 NGC 6958 G 20 48 42.6063609433 -37 59 50.877744163 12.79 12.27 11.42 10.83   ~ 145 1
38 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 581 1
39 ESO 107-4 G 21 03 29.6531337822 -67 10 52.613089794   12.98 11.87 11.63   ~ 58 0
40 IC 5105 GiG 21 24 22.009 -40 32 15.91   12.43 11.54 10.90   ~ 70 0
41 NGC 7135 AGN 21 49 45.9999195577 -34 52 34.589482636   12.25 13.30 10.84   ~ 83 0
42 ESO 289-15 G 22 18 07.5772750566 -42 41 21.793111845   15.06   13.92   ~ 22 0
43 NGC 7284 IG 22 28 35.925 -24 50 38.57   12.96   11.59   ~ 42 0
44 NGC 7285 IG 22 28 37.03 -24 50 25.9   12.82   11.54   ~ 35 0
45 IC 5250 IG 22 47 19.8 -65 03 27   12.1 11.11     ~ 28 0
46 IC 5250B GiP 22 47 22.1352601057 -65 03 30.681149765   12.20   10.59   ~ 24 0
47 NGC 7562 GiP 23 15 57.503 +06 41 14.97   13.0       ~ 157 0
48 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 418 0
49 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 409 1
50 IC 5328 G 23 33 16.458 -45 00 57.46   12.21 11.03 10.82   ~ 87 0
51 ESO 240-10 GiG 23 37 44.414 -47 30 22.92   12.49   11.15   ~ 49 0
52 IC 5358 BiC 23 47 45.1099462619 -28 08 26.672668925   13.42 14.72 11.99   ~ 81 1
53 2MASX J23474714-2808059 GiP 23 47 47.1857988259 -28 08 05.930633039   13.46   12.12   ~ 29 0
54 NGC 7785 G 23 55 19.036 +05 54 57.16   13.00       ~ 169 0
55 IC 5364 IG 23 56 24.58 -29 01 21.8   15.16   13.75   ~ 22 1
56 AM 2353-291 GiP 23 56 25.9 -29 01 21   14.69   13.33   ~ 15 0
57 ESO 538-10 GiG 23 57 40.034 -21 34 46.06   14.92   13.63   ~ 27 0
58 RR95 387 PaG ~ ~           ~ 1 0
59 RR95 287 PaG ~ ~           ~ 2 0
60 RR95 24 PaG ~ ~           ~ 2 0
61 RR95 282 PaG ~ ~           ~ 1 0
62 RR95 397 PaG ~ ~           ~ 1 0
63 RR95 105 PaG ~ ~           ~ 1 0
64 RR95 101 PaG ~ ~           ~ 1 0
65 RR95 62 PaG ~ ~           ~ 1 0
66 RR95 331 PaG ~ ~           ~ 1 0
67 RR95 381 PaG ~ ~           ~ 1 0
68 RR95 278 PaG ~ ~           ~ 1 0

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2021.12.08-04:24:26

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