2024MNRAS.528.2040V

Query : 2024MNRAS.528.2040V

2024MNRAS.528.2040V - Mon. Not. R. Astron. Soc., 528, 2040-2045 (2024/February-3)

Connections between central intensity ratio and hot gas properties of early-type galaxies.

VINOD K.T., BAHEEJA C. and RAVIKUMAR C.D.

Abstract (from CDS):

We report strong connections between central intensity ratio (CIR) and hot gas properties of Early-type galaxies (ETGs) in the nearby ($D\lt 30\, \mathrm{Mpc}$) Universe. We find new strong correlations between (optical) CIR and X-ray gas luminosity (L_X, GAS_) as well as X-ray gas temperature (TGAS). These correlations suggest that higher the central gas temperature lower will be the (central) star formation process in ETGs. Correlations of CIR separately with K-band magnitude and age of the sample galaxies further support suppression of star formation in the central region of ETGs as they grow in mass and age. The systematic and tight variation of CIR with L_X, GAS_ not only shows its remarkable potential to estimate L_X, GAS_ from simple photometry but also helps in transforming the core-coreless dichotomy into a gradual one.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): galaxies: evolution - Early-type galaxies: photometry - X-ray luminosity: gas temperature

Simbad objects: 38

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Number of rows : 38
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 524 GiP 01 24 47.7429545736 +09 32 20.089023900   11.5       ~ 494 1
2 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
3 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
4 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
5 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 378 0
6 NGC 1374 EmG 03 35 16.5885737352 -35 13 34.563417168 12.46 11.97 11.08 10.59   ~ 322 1
7 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
8 NGC 1400 EmG 03 39 30.851 -18 41 17.25 12.48 12.01 10.96 10.45   ~ 309 1
9 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
10 NGC 2974 Sy2 09 42 33.2918467632 -03 41 57.038311068   12.19   10.77   ~ 463 0
11 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
12 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 798 1
13 NGC 3585 GiG 11 13 17.109 -26 45 17.96   10.64   9.22   ~ 304 0
14 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
15 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 527 0
16 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
17 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
18 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 871 0
19 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
20 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 678 0
21 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
22 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 567 0
23 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
24 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 671 1
25 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
26 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
27 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 491 0
28 NGC 4526 GiC 12 34 03.02853 +07 41 56.9040   10.6       ~ 707 0
29 M 89 Sy2 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 1037 2
30 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
31 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 721 0
32 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
33 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
34 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
35 NGC 5576 GiP 14 21 03.691 +03 16 15.78 12.25 11.85 10.96     ~ 347 1
36 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
37 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 578 2
38 NGC 7457 AG? 23 00 59.9263288440 +30 08 41.764398792   11.04 11.87     ~ 459 0

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