2018A&A...609A.132C


Query : 2018A&A...609A.132C

2018A&A...609A.132C - Astronomy and Astrophysics, volume 609A, 132-132 (2018/1-1)

The intrinsic shape of bulges in the CALIFA survey.

COSTANTIN L., MENDEZ-ABREU J., CORSINI E.M., ELICHE-MORAL M.C., TAPIA T., MORELLI L., DALLA BONTA E. and PIZZELLA A.

Abstract (from CDS):

Context. The intrinsic shape of galactic bulges in nearby galaxies provides crucial information to separate bulge types.
Aims. We aim to derive accurate constraints to the intrinsic shape of bulges to provide new clues on their formation mechanisms and set new limitations for future simulations.
Methods. We retrieved the intrinsic shape of a sample of CALIFA bulges using a statistical approach. Taking advantage of GalMer numerical simulations of binary mergers we estimated the reliability of the procedure. Analyzing the i-band mock images of resulting lenticular remnants, we studied the intrinsic shape of their bulges at different galaxy inclinations. Finally, we introduced a new (B/A, C/A) diagram to analyze possible correlations between the intrinsic shape and the properties of bulges.
Results. We tested the method on simulated lenticular remnants, finding that for galaxies with inclinations of 25°≤θ≤65° we can safely derive the intrinsic shape of their bulges. We found that our CALIFA bulges tend to be nearly oblate systems (66%), with a smaller fraction of prolate spheroids (19%), and triaxial ellipsoids (15%). The majority of triaxial bulges are in barred galaxies (75%). Moreover, we found that bulges with low Sersic indices or in galaxies with low bulge-to-total luminosity ratios form a heterogeneous class of objects; additionally, bulges in late-type galaxies or in less massive galaxies have no preference for being oblate, prolate, or triaxial. On the contrary, bulges with high Sersic index, in early-type galaxies, or in more massive galaxies are mostly oblate systems.
Conclusions. We concluded that various evolutionary pathways may coexist in galaxies, with merging events and dissipative collapse being the main mechanisms driving the formation of the most massive oblate bulges and bar evolution reshaping the less massive triaxial bulges.

Abstract Copyright: © ESO, 2018

Journal keyword(s): galaxies: bulges - galaxies: evolution - galaxies: formation - galaxies: fundamental parameters - galaxies: photometry - galaxies: structure

Simbad objects: 87

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Number of rows : 87
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 1 GiP 00 07 15.8554856380 +27 42 29.024562244   13.4       ~ 102 0
2 NGC 160 G 00 36 04.0981265430 +23 57 28.510460638   13.7       ~ 82 0
3 NGC 175 G 00 37 21.521 -19 56 03.29   12.95   11.73 12.4 ~ 89 0
4 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11475 1
5 NGC 237 AGN 00 43 27.881 -00 07 29.52   13.65 13.06 12.53 11.85 ~ 136 0
6 NGC 234 EmG 00 43 32.3816212175 +14 20 33.389672451   13.5       ~ 109 0
7 NGC 257 GiG 00 48 01.5094425149 +08 17 49.506328654   13.7       ~ 77 0
8 NGC 309 EmG 00 56 42.660 -09 54 49.91   12.7   11.76 12.4 ~ 152 0
9 NGC 364 LIN 01 04 40.875 -00 48 09.58   14.6       ~ 54 0
10 NGC 496 GiG 01 23 11.618 +33 31 45.29   14.3       ~ 95 0
11 NGC 551 G 01 27 40.6317165588 +37 10 58.787535302   13.5       ~ 72 0
12 NGC 677 GiG 01 49 14.050 +13 03 19.28   14.3       ~ 68 0
13 UGC 1370 LIN 01 54 24.4000659851 +13 32 28.004343587   15.6       ~ 20 0
14 NGC 842 GiG 02 09 50.794 -07 45 44.63 14.10 13.61 12.66     ~ 44 1
15 NGC 873 EmG 02 16 32.3649796825 -11 20 54.549655483   13.1 12.71 12.174 13.0 ~ 63 0
16 NGC 1070 G 02 43 22.2702534140 +04 58 06.159233079   13.0       ~ 45 0
17 NGC 1094 LIN 02 47 27.8289939144 -00 17 06.429967541   13.5       ~ 72 0
18 NGC 1349 LIN 03 31 27.543 +04 22 51.13   15.00       ~ 65 0
19 NGC 1665 GiG 04 48 17.0815150974 -05 25 39.370751018   14   12.17   ~ 43 0
20 NGC 1666 GiG 04 48 32.847 -06 34 12.47   13.5       ~ 36 0
21 NGC 1667 Sy2 04 48 37.205 -06 19 11.47   13.66 12.86 11.72   ~ 342 1
22 UGC 3253 G 05 19 41.625 +84 03 09.10   13.1       ~ 62 0
23 NGC 2476 GiG 07 56 45.1865259032 +39 55 40.360740824   13.4       ~ 51 0
24 NGC 2486 Sy2 07 57 56.4890434053 +25 09 39.159332458   14.24 13.26     ~ 67 0
25 UGC 4145 Sy2 07 59 40.1306100542 +15 23 12.626566898   14.0       ~ 55 0
26 NGC 2526 GiP 08 06 58.625 +08 00 13.89   14.6       ~ 33 0
27 NGC 2572 LIN 08 21 24.604 +19 08 51.53   14.8       ~ 41 0
28 IC 2341 LIN 08 23 41.415 +21 26 04.90   14.9       ~ 44 0
29 NGC 2592 G 08 27 08.0513672756 +25 58 13.126845025   13.6       ~ 102 0
30 UGC 4455 G 08 31 32.880 -01 11 51.60   15.00       ~ 51 0
31 NGC 2767 GiG 09 10 11.888 +50 24 04.77   14.4       ~ 43 0
32 NGC 2880 GiG 09 29 34.618 +62 29 26.23   12.6       ~ 143 0
33 NGC 2916 Sy2 09 34 57.5939750994 +21 42 18.947459809 12.81 12.74 12.05     ~ 132 1
34 NGC 3106 LIN 10 04 05.2521409689 +31 11 07.659449395   14.0       ~ 86 0
35 NGC 3158 rG 10 13 50.527 +38 45 53.68   13.4       ~ 103 0
36 UGC 5520 G 10 15 00.666 +65 08 23.28   14.4       ~ 41 0
37 NGC 3381 GiG 10 48 24.7993628769 +34 42 41.084421593   12.8       ~ 139 0
38 UGC 7012 rG 12 02 03.164 +29 50 53.11   14.3       ~ 88 0
39 NGC 4185 LIN 12 13 22.207 +28 30 39.31   13.5       ~ 91 0
40 NGC 4210 LIN 12 15 15.8479940774 +65 59 07.089820067   13.4       ~ 118 0
41 IC 776 EmG 12 19 03.119 +08 51 22.15   14.9       ~ 127 0
42 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 809 0
43 NGC 4698 Sy2 12 48 22.9112380605 +08 29 14.648866444   13.24 12.27     ~ 453 0
44 NGC 4711 GiC 12 48 45.8621672335 +35 19 57.883605425   14.4       ~ 58 0
45 NGC 4961 GiP 13 05 47.5766135361 +27 44 03.246072606   13.5       ~ 156 0
46 NGC 5056 G 13 16 12.329 +30 57 01.08   13.6       ~ 123 0
47 NGC 5077 GiP 13 19 31.66964077 -12 39 25.0754790   13.87 12.85 11.30   ~ 278 0
48 MCG+09-22-053 G 13 22 32.432 +54 49 04.97   15.4       ~ 31 0
49 NGC 5145 SBG 13 25 13.9114188960 +43 16 02.358294920   13.6       ~ 94 0
50 NGC 5157 LIN 13 27 16.850 +32 01 50.55   14.4       ~ 54 0
51 NGC 5376 LIN 13 55 16.0361018326 +59 30 23.911532583   12.9       ~ 88 0
52 NGC 5473 GiG 14 04 43.2267749904 +54 53 33.510308649   12.5       ~ 131 0
53 NGC 5481 G 14 06 41.2701086017 +50 43 23.829628047   13.5       ~ 115 0
54 UGC 9110 LIN 14 14 13.3919215093 +15 37 20.623430445   14.0       ~ 40 0
55 IC 994 LIN 14 18 22.617 +11 11 42.42   14.8       ~ 25 0
56 NGC 5602 GiG 14 22 18.834 +50 30 05.12   13.5       ~ 50 0
57 NGC 5720 LIN 14 38 33.2820411698 +50 48 54.897220308   14.7       ~ 63 0
58 NGC 5732 G 14 40 38.953 +38 38 16.18   14.4       ~ 63 0
59 NGC 5735 LIN 14 42 33.2404373570 +28 43 35.229757098   14.06 13.36     ~ 64 0
60 UGC 9492 LIN 14 44 12.1849159242 +07 56 58.683120882   15.0       ~ 30 0
61 NGC 5772 SyG 14 51 38.894 +40 35 57.06   13.90       ~ 92 0
62 UGC 9708 GiP 15 06 32.477 +09 26 58.43   15.2       ~ 26 0
63 IC 4534 G 15 06 41.7675337064 +23 38 30.855100735   14.7       ~ 27 0
64 NGC 5888 LIN 15 13 07.374 +41 15 52.67   14.3       ~ 69 0
65 UGC 9777 G 15 14 15.1536737493 +20 28 43.144249194   15.0       ~ 47 0
66 UGC 9837 LSB 15 23 51.735 +58 03 11.23   14.6       ~ 65 0
67 NGC 5947 AGN 15 30 36.5917232336 +42 43 01.769106580   14.8       ~ 69 0
68 NGC 6060 GiG 16 05 51.980 +21 29 05.94   14.3       ~ 88 0
69 NGC 6155 EmG 16 26 08.3334871725 +48 22 00.416360731   13.20       ~ 93 1
70 NGC 6278 GiP 17 00 50.3235661456 +23 00 39.759687248   13.8       ~ 141 0
71 NGC 6301 GiG 17 08 32.739 +42 20 20.86   14.6       ~ 55 0
72 NGC 6314 LIN 17 12 38.6893448746 +23 16 12.247289041 16.04 15.56 14.62 14.02 13.33 ~ 92 0
73 NGC 6941 rG 20 36 23.4741685623 -04 37 07.443162713   13.3   13.3 12.9 ~ 70 3
74 MCG-01-52-012 LIN 20 37 49.9712416213 -06 05 26.855974164   15.5       ~ 19 0
75 NGC 6977 LIN 20 52 29.7025249886 -05 44 45.950330045   14.28   12.73   ~ 57 0
76 UGC 11649 LIN 20 55 27.6252477888 -01 13 30.889418751   14.5       ~ 62 0
77 NGC 7047 LIN 21 16 27.643 -00 49 35.30   14.3       ~ 63 0
78 NGC 7321 LIN 22 36 28.0163538572 +21 37 18.376079359   15.4       ~ 86 0
79 UGC 12185 LIN 22 47 25.063 +31 22 24.77   14.8       ~ 56 0
80 UGC 12224 G 22 52 38.291 +06 05 37.21   15.30       ~ 70 0
81 UGC 12250 LIN 22 55 35.918 +12 47 25.12   14.06       ~ 48 1
82 NGC 7591 SyG 23 18 16.2683208567 +06 35 09.111064142   13.8       ~ 237 0
83 IC 5309 GiG 23 19 11.638 +08 06 33.58   15.0       ~ 108 0
84 NGC 7653 LIN 23 24 49.355 +15 16 32.14   12.06 11.91     ~ 86 1
85 NGC 7671 GiP 23 27 19.329 +12 28 02.60   14.3       ~ 60 0
86 NGC 7716 G 23 36 31.458 +00 17 50.33   12.9   13.0 12.6 ~ 150 0
87 NGC 7782 LIN 23 53 53.899 +07 58 13.81   13.2       ~ 103 0

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2021.10.16-16:56:12

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