2019ApJ...886...80D


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.06CEST00:01:56

2019ApJ...886...80D - Astrophys. J., 886, 80-80 (2019/December-1)

The most massive galaxies with large depleted cores: structural parameter relations and black hole masses.

DULLO B.T.

Abstract (from CDS):

Luminous spheroids (MV <= -21.50 ± 0.75 mag) contain partially depleted cores with sizes (Rb) typically 0.02-0.5 kpc. However, galaxies with Rb > 0.5 kpc are rare and poorly understood. Here, we perform detailed decompositions of the composite surface brightness profiles, extracted from archival Hubble Space Telescope and ground-based images, of 12 extremely luminous "large-core" galaxies that have Rb > 0.5 kpc and MV <= -23.50 ± 0.10 mag, fitting a core-Sersic model to the galaxy spheroids. Using 28 "normal-core" (i.e., Rb < 0.5 kpc) galaxies and one "large-core" (i.e., Rb > 0.5 kpc) galaxy from the literature, we constructed a final sample of 41 core-Sersic galaxies. We find that large-core spheroids (with stellar masses M* >= 1012M) are not simple high-mass extensions of the less luminous normal-core spheroids having M* ∼ 8 x 1010-1012M. While the two types follow the same strong relations between the spheroid luminosity LV and Rb (Rb∝LV^1.38±0.13^), and the spheroid half-light radius Re (Re∝LV^1.08±0.09^, for ellipticals plus Brightest Cluster Galaxies), we discover a break in the core-Sersic σ-LV relation occurring at MV ∼ -23.50 ± 0.10 mag. Furthermore, we find a strong log-linear Rb-MBH relation for the 11 galaxies in the sample with directly determined supermassive black hole (SMBH) masses MBH-3/11 galaxies are large-core galaxies-such that Rb∝MBH^0.83±0.10^. However, for the large-core galaxies the SMBH masses estimated from the MBH-σ and core-Sersic MBH-L relations are undermassive, by up to a factor of 40, relative to expectations from their large Rb values, confirming earlier results. Our findings suggest that large-core galaxies harbor overmassive SMBHs (MBH >= 1010M), considerably (∼3.7-15.6σ and ∼0.6-1.7σ) larger than expectations from the spheroid σ and L, respectively. We suggest that the Rb-MBH relation can be used to estimate SMBH masses in the most massive galaxies.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Supermassive black holes - cD galaxies - Elliptical galaxies - Lenticular galaxies - Galaxy photometry - Galaxy nuclei - Galaxy structure

Simbad objects: 34

goto Full paper

goto View the reference in ADS

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 - 2021
#notes
1 MCG-02-02-086 BiC 00 41 50.451 -09 18 11.46   14 13.52 12.94   ~ 116 1
2 UGC 579 BiC 00 56 16.101 -01 15 19.77   14.40 14.45     ~ 67 1
3 ACO 119 ClG 00 56 16.8 -01 15 00           ~ 530 2
4 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1478 1
5 NGC 1600 GiG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 340 0
6 NAME NGC 1600 Group ClG 04 32 -05.0           ~ 15 0
7 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 225 0
8 4C 74.13 BiC 07 41 44.449 +74 14 39.59   20.15 18.53     ~ 21 2
9 2MASX J09194427+5622012 BiC 09 19 44.279 +56 22 01.28           ~ 13 0
10 NGC 3842 BiC 11 44 02.155 +19 56 59.37 14.22 13.70 11.82 12.04   ~ 259 3
11 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6025 0
12 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1990 2
13 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6397 3
14 NGC 4874 LIN 12 59 35.709 +27 57 33.80 13.01 13.7 11.40 12.122 11.386 ~ 733 3
15 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4348 2
16 NGC 4889 BiC 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 659 1
17 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1043 0
18 2MASX J13112952-0120280 BiC 13 11 29.510 -01 20 28.02   17.87 16.48 15.75 15.16 ~ 23 1
19 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 411 2
20 ESO 444-46 BiC 13 27 56.884 -31 29 43.71   13.88 15 12.24   ~ 70 2
21 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 289 1
22 ESO 444-72 BiC 13 33 34.739 -31 40 20.16   14.40   12.83   ~ 48 0
23 ESO 383-76 BiC 13 47 28.385 -32 51 54.02   13.02   11.53   ~ 54 1
24 ACO 3571 ClG 13 47 28.9 -32 51 57           ~ 268 2
25 ACO S 753 ClG 14 03 35.9 -33 59 16           ~ 80 1
26 NGC 5419 BiC 14 03 38.771 -33 58 42.20   11.77 11.33 10.21   ~ 175 2
27 IC 1101 rG 15 10 56.100 +05 44 41.19   15.10       ~ 148 2
28 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 879 0
29 UGC 10143 BiC 16 02 17.007 +15 58 28.25   14.9       ~ 80 0
30 ACO 2147 ClG 16 02 17.2 +15 53 43           ~ 383 0
31 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1120 1
32 3C 338.0 QSO 16 28 38.2447110 +39 33 04.233634   12.78 11.78     ~ 716 5
33 2MASX J17222717+3207571 BiC 17 22 27.185 +32 07 57.25           ~ 39 1
34 ACO 2261 ClG 17 22 28.3 +32 09 13           ~ 301 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2019ApJ...886...80D and select 'bookmark this link' or equivalent in the popup menu


2021.05.06-00:01:56

© Université de Strasbourg/CNRS

    • Contact