2009ApJ...694.1550S

Query : 2009ApJ...694.1550S

2009ApJ...694.1550S - Astrophys. J., 694, 1550-1558 (2009/April-1)

Two more disk galaxies with global gas counterrotation.

SIL'CHENKO O.K., MOISEEV A.V. and AFANASIEV V.L.

Abstract (from CDS):

We report a discovery of extended counterrotating gaseous disks in early-type disk galaxies NGC 2551 and NGC 5631. To find them, we have undertaken complex spectral observations including integral-field spectroscopy for the central parts of the galaxies and long-slit deep spectroscopy to probe the external parts. The line-of-sight velocity fields have been constructed and compared to the photometric structure of the galaxies. As a result, we have revealed full-size counterrotating gaseous disks, the one coplanar to the stellar disk in NGC 2551 and the other inclined to the main stellar disk in NGC 5631. We suggest that we observe the early stages of minor-merger events which may be two different stages of the process of lenticular galaxy formation in rather sparse environments.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: kinematics and dynamics

Simbad objects: 24

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Number of rows : 24
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IC 1548 GiG 00 21 55.1764010352 +22 00 22.870630836   15.6       ~ 28 0
2 * nu. Psc * 01 41 25.8941428289 +05 29 15.401884416 7.36 5.81 4.44 3.38 2.67 K3III 237 0
3 * kap Per PM* 03 09 29.8036400506 +44 51 26.849828627 5.62 4.79 3.81 3.07 2.57 G9.5IIIb 238 0
4 NGC 1596 GiP 04 27 38.1079224792 -55 01 39.852944076   12.01 10.97 10.54   ~ 116 0
5 * 30 Gem PM* 06 43 59.2871476656 +13 13 40.799645724 6.82 5.65 4.49 3.63 3.03 K0+IIICa1 145 0
6 NGC 2551 GiG 08 24 50.2699218936 +73 24 43.353747900   13.10 12.11     ~ 79 1
7 HD 72184 SB* 08 32 54.9780716136 +38 00 58.944441348   7.01   5.2   K1.5III-IIIb 133 0
8 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1073 1
9 NGC 3593 GiG 11 14 36.9731893800 +12 49 05.497790664   11.8       ~ 359 2
10 NGC 3626 GiG 11 20 03.8069651160 +18 21 24.543304164   11.2       ~ 258 0
11 NGC 4138 Sy2 12 09 29.8011417048 +43 41 06.864140004 12.46 12.29 11.32 10.82   ~ 410 1
12 NGC 4546 Sy2 12 35 29.4931619736 -03 47 35.383858656 11.89 11.30 10.32     ~ 221 1
13 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 939 2
14 NGC 5631 Sy2 14 26 33.2913328320 +56 34 57.424681848   13.51 12.55     ~ 180 0
15 NGC 5719 GiP 14 40 56.3690411016 -00 19 05.854225080   13.10   12.061   ~ 173 1
16 * del Boo PM* 15 15 30.1628200572 +33 18 53.392471806 5.12 4.44 3.49 2.76 2.25 G8IIIFe-1 377 0
17 HD 167042 PM* 18 10 31.6398993768 +54 17 11.592196980   6.89   5.4   K1III 154 1
18 NGC 7217 LIN 22 07 52.3984675584 +31 21 33.632293572   12.94 11.92     ~ 494 0
19 NGC 7280 GiP 22 26 27.5758899936 +16 08 53.421593496   13.6       ~ 159 0
20 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1227 2
21 NGC 7332 GiP 22 37 24.5373044952 +23 47 53.830708800   12.0       ~ 373 0
22 NGC 7468 bCG 23 02 59.172 +16 36 16.20   14.0       ~ 161 0
23 NGC 7625 AG? 23 20 30.132 +17 13 32.16 13.31 13.23 11.98 11.25   ~ 264 0
24 NGC 7742 GiP 23 44 15.7534099368 +10 46 01.533226872   12.5       ~ 212 0

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