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Query : 2010MNRAS.408...97K |
2010MNRAS.408...97K - Mon. Not. R. Astron. Soc., 408, 97-132 (2010/October-2)
The SAURON project - XVII. Stellar population analysis of the absorption line strength maps of 48 early-type galaxies.
KUNTSCHNER H., EMSELLEM E., BACON R., CAPPELLARI M., DAVIES R.L., DE ZEEUW P.T., FALCON-BARROSO J., KRAJNOVIC D., McDERMID R.M., PELETIER R.F., SARZI M., SHAPIRO K.L., VAN DEN BOSCH R.C.E. and VAN DE VEN G.
Abstract (from CDS):
The flattened components with disc-like kinematics previously identified in all fast rotators are shown to be connected to regions of distinct stellar populations. These range from the young, still star-forming circumnuclear discs and rings with increased metallicity preferentially found in intermediate-mass fast rotators, to apparently old structures with extended disc-like kinematics, which are observed to have an increased metallicity and mildly depressed [α/Fe] ratio compared to the main body of the galaxy. The slow rotators, often harbouring kinematically decoupled components (KDC) in their central regions, generally show no stellar population signatures over and above the well-known metallicity gradients in early-type galaxies and are largely consistent with old (≥10Gyr) stellar populations.
Using radially averaged stellar population gradients we find in agreement with Spolaor et al. a mass-metallicity gradient relation where low-mass fast rotators form a sequence of increasing metallicity gradient with increasing mass. For more massive systems (above ∼3.5x1010M☉) there is an overall downturn such that metallicity gradients become shallower with increased scatter at a given mass leading to the most massive systems being slow rotators with relatively shallow metallicity gradients. The observed shallower metallicity gradients and increased scatter could be a consequence of the competition between different star formation and assembly scenarios following a general trend of diminishing gas fractions and more equal-mass mergers with increasing mass, leading to the most massive systems being devoid of ordered motion and signs of recent star formation.
Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS
Journal keyword(s): galaxies: bulges - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: formation - galaxies: kinematics and dynamics - galaxies: nuclei
Simbad objects: 50
Number of rows : 50 |
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 474 | GiP | 01 20 06.6870520512 | +03 24 55.861973100 | 12.75 | 12.37 | 11.51 | 11.42 | 10.56 | ~ | 354 | 1 |
2 | NGC 524 | GiP | 01 24 47.7429545736 | +09 32 20.089023900 | 11.5 | ~ | 462 | 1 | ||||
3 | NGC 821 | AG? | 02 08 21.1358498040 | +10 59 41.832436704 | 12.210 | 11.310 | 10.739 | 9.744 | ~ | 572 | 0 | |
4 | NGC 1023 | AG? | 02 40 24.0133575864 | +39 03 47.663392896 | 10.91 | 10.35 | 9.35 | 7.83 | ~ | 660 | 2 | |
5 | NGC 2549 | AG? | 08 18 58.3507032336 | +57 48 11.022298740 | 12.1 | ~ | 254 | 0 | ||||
6 | NGC 2695 | GiG | 08 54 27.0744277224 | -03 04 00.993904032 | 13.3 | ~ | 111 | 0 | ||||
7 | NGC 2685 | Sy2 | 08 55 34.7027817000 | +58 44 03.876540108 | 13.68 | 12.70 | ~ | 430 | 1 | |||
8 | NGC 2699 | GiG | 08 55 48.7851438216 | -03 07 39.575588736 | 13.6 | ~ | 106 | 0 | ||||
9 | NGC 2768 | SyG | 09 11 37.504 | +60 02 13.95 | 11.30 | 10.84 | 9.87 | ~ | 503 | 2 | ||
10 | NGC 2974 | Sy2 | 09 42 33.2918467632 | -03 41 57.038311068 | 12.19 | 10.77 | ~ | 438 | 0 | |||
11 | NGC 3032 | AGN | 09 52 08.1524118072 | +29 14 10.364182440 | 13.87 | 13.28 | ~ | 250 | 0 | |||
12 | NGC 3115 | GiG | 10 05 13.9270507008 | -07 43 06.982712292 | 11 | 9.37 | ~ | 1013 | 2 | |||
13 | NGC 3156 | GiG | 10 12 41.2457368824 | +03 07 45.701284764 | 12.8 | ~ | 235 | 0 | ||||
14 | NGC 3377 | GiP | 10 47 42.400 | +13 59 08.30 | 11.55 | 11.24 | 10.38 | ~ | 775 | 1 | ||
15 | M 105 | LIN | 10 47 49.600 | +12 34 53.87 | 10.56 | 9.76 | 9.12 | 8.18 | ~ | 1463 | 0 | |
16 | NGC 3384 | GiG | 10 48 16.8855574392 | +12 37 45.371165844 | 10.0 | ~ | 596 | 1 | ||||
17 | NGC 3414 | GiP | 10 51 16.2099174408 | +27 58 30.297624852 | 12.1 | ~ | 329 | 0 | ||||
18 | NGC 3489 | GiG | 11 00 18.5483994744 | +13 54 04.206202668 | 11.46 | 11.12 | 10.29 | ~ | 400 | 1 | ||
19 | NGC 3608 | LIN | 11 16 58.967 | +18 08 54.71 | 11.7 | ~ | 508 | 0 | ||||
20 | NGC 4150 | GiG | 12 10 33.655 | +30 24 05.35 | 12.72 | 12.44 | 11.64 | ~ | 310 | 2 | ||
21 | NGC 4262 | GiG | 12 19 30.5694336288 | +14 52 39.517143276 | 13.00 | 12.49 | 11.55 | ~ | 356 | 1 | ||
22 | NGC 4270 | GiP | 12 19 49.4714861496 | +05 27 48.394930572 | 13.3 | ~ | 181 | 0 | ||||
23 | NGC 4278 | LIN | 12 20 06.8242 | +29 16 50.722 | 11.54 | 11.09 | 10.16 | ~ | 946 | 2 | ||
24 | NGC 4365 | GiG | 12 24 28.228 | +07 19 03.07 | 11.5 | ~ | 840 | 0 | ||||
25 | M 84 | Sy2 | 12 25 03.74333 | +12 53 13.1393 | 12.67 | 12.09 | 10.49 | ~ | 1762 | 2 | ||
26 | M 85 | GiP | 12 25 24.053 | +18 11 27.89 | 10.2 | ~ | 644 | 0 | ||||
27 | NGC 4387 | GiG | 12 25 41.6768484264 | +12 48 37.804615956 | 13.42 | 13.01 | 12.12 | 10.87 | ~ | 392 | 1 | |
28 | NGC 4458 | GiP | 12 28 57.5613938232 | +13 14 30.946545276 | 13.27 | 12.93 | 12.07 | ~ | 413 | 2 | ||
29 | NGC 4459 | H2G | 12 29 00.0329905416 | +13 58 42.826603332 | 11.6 | ~ | 539 | 0 | ||||
30 | NGC 4473 | GiG | 12 29 48.878 | +13 25 45.55 | 11.60 | 11.16 | 10.20 | ~ | 644 | 1 | ||
31 | NGC 4477 | Sy2 | 12 30 02.1955766304 | +13 38 11.543715888 | 11.98 | 11.38 | 10.42 | ~ | 396 | 2 | ||
32 | M 87 | AGN | 12 30 49.42338414 | +12 23 28.0436859 | 10.16 | 9.59 | 8.63 | 7.49 | ~ | 7185 | 3 | |
33 | IRAS 12315+0758 | GiG | 12 34 03.029 | +07 41 56.90 | 10.6 | ~ | 670 | 0 | ||||
34 | NGC 4546 | Sy2 | 12 35 29.4931619736 | -03 47 35.383858656 | 11.89 | 11.30 | 10.32 | ~ | 221 | 1 | ||
35 | NGC 4550 | GiP | 12 35 30.5913588048 | +12 13 14.921166792 | 12.97 | 12.56 | 11.68 | ~ | 537 | 1 | ||
36 | M 89 | LIN | 12 35 39.80733343 | +12 33 22.8308657 | 11.29 | 10.73 | 9.75 | ~ | 995 | 2 | ||
37 | NGC 4564 | GiG | 12 36 26.9869512504 | +11 26 21.204472848 | 12.51 | 12.05 | 11.12 | ~ | 595 | 1 | ||
38 | NGC 4570 | GiG | 12 36 53.3828233728 | +07 14 47.697174852 | 11.8 | ~ | 331 | 0 | ||||
39 | M 59 | GiG | 12 42 02.2581375168 | +11 38 48.909507756 | 11.0 | ~ | 693 | 0 | ||||
40 | NGC 4660 | GiP | 12 44 31.9814021280 | +11 11 25.739106972 | 12.1 | ~ | 417 | 0 | ||||
41 | NGC 5198 | GiP | 13 30 11.3858465016 | +46 40 14.667297420 | 13.2 | ~ | 177 | 0 | ||||
42 | NGC 5308 | GiP | 13 47 00.4361008824 | +60 58 23.334066588 | 12.5 | ~ | 205 | 0 | ||||
43 | NGC 5813 | LIN | 15 01 11.2302420864 | +01 42 07.141569696 | 12.00 | 11.45 | 10.46 | 10.06 | ~ | 637 | 1 | |
44 | NGC 5831 | GiG | 15 04 07.0002600408 | +01 13 11.705607012 | 13.1 | 11.19 | ~ | 294 | 0 | |||
45 | NGC 5838 | GiP | 15 05 26.2447857696 | +02 05 57.349108392 | 12.1 | 10.26 | ~ | 238 | 0 | |||
46 | NGC 5845 | GiG | 15 06 00.7823239488 | +01 38 01.704838596 | 13.8 | 11.20 | 12.06 | 9.94 | ~ | 385 | 0 | |
47 | NGC 5846 | BiC | 15 06 29.253 | +01 36 20.29 | 11.9 | 9.74 | ~ | 849 | 1 | |||
48 | NGC 5982 | LIN | 15 38 39.778 | +59 21 21.21 | 12.4 | ~ | 293 | 0 | ||||
49 | NGC 7332 | GiP | 22 37 24.5373044952 | +23 47 53.830708800 | 12.0 | ~ | 373 | 0 | ||||
50 | NGC 7457 | AG? | 23 00 59.9263288440 | +30 08 41.764398792 | 11.04 | 11.87 | ~ | 440 | 0 |
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