2018A&A...615A..26B


Query : 2018A&A...615A..26B

2018A&A...615A..26B - Astronomy and Astrophysics, volume 615A, 26-26 (2018/7-1)

Evolution of the anti-truncated stellar profiles of S0 galaxies since z = 0.6 in the SHARDS survey. II. Structural and photometric evolution.

BORLAFF A., ELICHE-MORAL M.C., BECKMAN J.E., VAZDEKIS A., LUMBRERAS-CALLE A., CIAMBUR B.C., PEREZ-GONZALEZ P.G., CARDIEL N., BARRO G. and CAVA A.

Abstract (from CDS):


Context. Anti-truncated lenticular galaxies (Type-III S0s) present tight scaling relations between their surface brightness photometric and structural parameters. Although several evolutionary models have been proposed for the formation of these structures, the observations of Type-III S0 galaxies are usually limited to the local Universe.
Aims. We aim to compare the properties of Type-III discs in a sample of S0 galaxies at 0.2<z<0.6 with those of the local Universe. In this paper, we study the evolution of the photometric and structural scaling relations measured in the rest-frame R-band with z and the possible differences between the rest-frame (B-R) colours of the inner and outer disc profiles.
Methods. We make use of a sample of 14 Type-III E/S0-S0 galaxies at 0.2<z<0.6 from the GOODS-N field identified and characterised in a previous paper. We study whether or not the correlations found in local Type-III S0 galaxies were present ∼6Gyr ago. We analyse the distribution of the surface brightness characteristic parameters (Rbreak, µbreak, hi, ho, µ0,i and µ0,o) as a function of the stellar mass and look to see if there is a significant change with z. We also derive their rest-frame (B-R) colour profiles. Finally, we compare these results with the predictions from a grid of SSP models.
Results. We find that the inner and outer scale-lengths of Type-III S0 galaxies at 0.4<z<0.6 follow compatible trends and scaling relations with those observed in local S0 galaxies as a function of the break radius, Rbreak. We do not detect any significant differences between the location of Rbreak between z∼0.6 and z∼0 for a fixed stellar mass of the object, whereas the surface brightness at the break radius µbreak is ∼1.5mag/arcsec2 dimmer in the local Universe than at z∼0.6 for a fixed stellar mass. We find no significant differences in the (B-R) colour between the inner and outer profiles of the Type-III S0 galaxies at 0.2<z<0.6.
Conclusions. In contrast to Type-II (down-bending) profiles, the anti-truncated surface brightness profiles of S0 galaxies present compatible Rbreak values and scaling relations during the last 6Gyr. This result and the similarity of the colours of the inner and outer discs point to a highly scalable and stable formation process, probably more related to gravitational and dynamical processes than to the evolution of stellar populations.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: fundamental parameters - galaxies: elliptical and lenticular, cD - galaxies: structure - galaxies: evolution - galaxies: formation - galaxies: general

Simbad objects: 21

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Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1423 2
2 NGC 2880 GiG 09 29 34.5699581472 +62 29 26.020090572   12.6       ~ 151 0
3 NGC 3900 GiP 11 49 09.4563144120 +27 01 19.276393872   12.5       ~ 174 0
4 NGC 3998 SyG 11 57 56.1334044408 +55 27 12.922443432   11.64 12.10 10.09   ~ 612 2
5 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 519 0
6 GNS 2700 G 12 36 08.064 +62 08 50.89 24.46 22.9742 20.982 20.28 20.0476 ~ 17 0
7 SHARDS 10003647 G 12 36 37.991 +62 17 29.01 25.65 24.3408 22.082 21.74 20.9400 ~ 15 0
8 SHARDS 10009610 G 12 36 39.0603 +62 18 21.397 25.35 24.0382   21.4 20.5286 ~ 9 0
9 SHARDS 20000593 G 12 36 39.716 +62 08 18.56 24.69 22.5873 22.134 21.0 20.4187 ~ 12 0
10 NAME GOODS-N Field reg 12 36 55.0 +62 14 15           ~ 1060 1
11 GNS 1204 G 12 36 56.4550 +62 18 04.487 25.17 24.1930 22.828 21.8 21.1565 ~ 16 0
12 SHARDS 20003210 G 12 37 00.582 +62 12 34.78 25.59 24.4852 23.232 21.43 21.5068 ~ 42 0
13 ACS-GC 50011886 AGN 12 37 08.648 +62 15 01.88 25.72 24.6639 23.81 21.68 21.6703 ~ 27 0
14 SHARDS 10002730 G 12 37 14.311 +62 16 56.33 25.43 24.1390 22.806 21.8 21.2795 ~ 16 0
15 SHARDS 10000849 G 12 37 26.1666 +62 14 03.462 27.76 24.3012 22.641   20.9090 ~ 12 0
16 FIGS GN2 1314 G 12 37 26.569 +62 17 13.64 26.7 24.7527 23.143 21.94 21.2632 ~ 15 0
17 GOODS J123726.97+621249.0 G 12 37 26.9730 +62 12 49.017 25.91 24.8185   22.7 22.2295 ~ 12 0
18 SHARDS 10000840 G 12 37 41.858 +62 13 58.57 24.39 23.9174 21.771 21.48 20.9103 ~ 10 0
19 TKRS 13665 Sy2 12 37 44.205 +62 13 58.44 24.83 20.8596 22.00 21.7 21.1485 ~ 21 0
20 GOODS J123752.32+621530.0 G 12 37 52.3222 +62 15 29.983 25.45 24.1039     20.9571 ~ 9 0
21 NGC 7457 G 23 00 59.9263288440 +30 08 41.764398792   11.04 11.87     ~ 423 0

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2022.11.28-23:23:10

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