2004A&A...417..527L

Query : 2004A&A...417..527L

2004A&A...417..527L - Astronomy and Astrophysics, volume 417, 527-539 (2004/4-2)

Box- and peanut-shaped bulges. III. A new class of bulges: Thick Boxy Bulges.

LUETTICKE R., POHLEN M. and DETTMAR R.-J.

Abstract (from CDS):

Inspecting all 1224 edge-on disk galaxies larger than 2' in the RC3 on Digitized Sky Survey (DSS) images (Luetticke et al., 2000A&AS..145..405L) we have found several galaxies with extraordinary bulges meeting two criteria: they are box shaped and large in respect to the diameters of their galaxies. These bulges are often disturbed, show frequently prominent irregularities and asymmetries, and some possess possible merger remnants or merging satellites. For these bulges we have introduced the term ``Thick Boxy Bulges'' (TBBs). About 2% of all disk galaxies (S0-Sd), respectively 4% of all galaxies with box- and peanut-shaped (b/p) bulges, belong to this class of galaxies. Using multicolour CCD and NIR data we have enlarged and followed up our sample of nearly 20 galaxies with a TBB. The disturbed morphology of a large fraction of these galaxies shows that many of the TBB galaxies are not dynamically settled. For the TBBs the extent of the box shape seems to be too large to result from a normal bar potential. Therefore we conclude that two classes of b/p bulges exist with different origins. While most (∼96%) b/p bulges can be explained by bars alone (Luetticke et al., 2000A&A...362..435L), the extended boxy structures of TBBs result most likely from accreted material by infalling satellite companions (soft merging).

Abstract Copyright: ∼

Journal keyword(s): galaxies: bulges - galaxies: evolution - galaxies: interactions - galaxies: spiral - galaxies: statistics - galaxies: structure

CDS comments: Table 1 : PPS2 173 = [T98b] 173.

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 - 2024 		#notes
1 NGC 7814 GiG 00 03 14.947 +16 08 42.82   12.0       ~ 294 1
2 ESO 13-12 AG? 01 07 02.316 -80 18 27.78   13.49   11.86   ~ 64 0
3 NGC 1030 GiG 02 39 50.600 +18 01 27.40   14.5       ~ 42 0
4 RASSCALS SRGs148 GrG 02 40 37.8 +17 53 49           ~ 3 0
5 NGC 1055 GiP 02 41 45.233 +00 26 35.45 11.59 11.40 10.59 10.5 10.7 ~ 283 2
6 LGG 73 GrG 02 42 53.3 +00 17 28   9.4       ~ 12 0
7 NGC 1589 GiG 04 30 45.4373863872 +00 51 49.218145884   13.8       ~ 66 0
8 LGG 117 GrG 04 31 53.6 +00 32 58           ~ 7 0
9 UGC 3458 GiG 06 25 55.4937981624 +64 44 26.175324876   15.1       ~ 30 0
10 ESO 494-22 PaG 08 05 32.5291150872 -24 48 52.515396252   14.02   12.31   ~ 12 0
11 LGG 229 GrG 11 10 07.8 -37 24 08           ~ 5 0
12 NGC 3573 LIN 11 11 18.5792172168 -36 52 31.919362644   13.18 12.87 11.31 12.3 ~ 54 0
13 NGC 4224 GiP 12 16 33.7856435496 +07 27 43.527631068   13.3       ~ 154 0
14 LGG 281 GrG 12 20 31 +05 49.0           ~ 4 0
15 ESO 506-3 AG? 12 21 49.479 -25 04 32.66   15.31   13.94   ~ 22 0
16 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1396 3
17 LGG 305 GrG 12 48 49 -41 02.5           ~ 3 0
18 ESO 322-100 EmG 12 49 26.6792259864 -41 27 46.277776980   14.75 13.43     ~ 37 0
19 ESO 383-5 EmG 13 29 23.551 -34 16 16.82   14.25   12.82 12.9 ~ 58 0
20 NAME IC 4296 Group GrG 13 33 34 -33 37.3           ~ 19 0
21 ESO 510-13 EmG 13 55 04.358 -26 46 50.45   13.37   11.81   ~ 41 0
22 LGG 386 GrG 14 39 38.0 +02 07 50           ~ 8 0
23 NGC 5719 GiP 14 40 56.3690411016 -00 19 05.854225080   13.10   12.061   ~ 173 1
24 LGG 395 GrG 15 10 28.0 +54 55 04           ~ 5 0
25 UGC 9759 GiG 15 10 41.008 +55 20 59.32   15.1       ~ 54 0
26 ESO 514-5 Sy2 15 19 03.600 -23 49 14.83   14.00   12.46   ~ 28 0
27 NVSS J160640+300558 rG 16 06 40.182 +30 05 56.65   14.4       ~ 116 0
28 IC 4745 Sy2 18 42 35.9516701248 -64 56 34.541322072   13.89   12.17 13.1 ~ 39 0
29 IC 4757 GiG 18 43 55.7165673048 -57 10 03.667288008   14.57   12.99 13.3 ~ 24 0
30 NAME IC 4765 Group GrG 18 46 52 -63 23.2           ~ 6 1
31 ESO 142-19 Sy2 19 33 18.9188281704 -58 06 51.207903540   13.56   11.78 12.0 ~ 42 0
32 NGC 6948 EmG 20 43 29.1516017448 -53 21 23.866314840   13.79   12.36 12.7 ~ 40 0
33 NGC 7123 AG? 21 50 46.575 -70 20 03.08   13.29   11.89   ~ 45 0
34 NGC 7183 EmG 22 02 21.6203695272 -18 54 59.375338344   12.94   11.27 11.7 ~ 56 0

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