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| Query : 2000ApJ...539..149K |
2000ApJ...539..149K - Astrophys. J., 539, 149-154 (2000/August-2)
Homogeneity of stellar populations in early-type galaxies with different X-ray properties.
KODAMA T. and MATSUSHITA K.
Abstract (from CDS):
We have found that the stellar populations of early-type galaxies are homogeneous with no significant difference in color or Mg2 index, despite the dichotomy between X-ray-extended early-type galaxies and X-ray-compact ones. Since the X-ray properties reflect the potential gravitational structure and, hence, the process of galaxy formation, the homogeneity of the stellar populations implies that the formation of stars in early-type galaxies predates the epoch when the dichotomy of the potential structure was established.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Evolution - Galaxies: Formation - Galaxies: ISM - Galaxies: Stellar Content
Simbad objects: 13
| Number of rows : 13 |
| 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 1399 | rG | 03 38 29.083 | -35 27 02.67 | 11.05 | 9.74 | 9.59 | 8.12 | ~ | 1636 | 1 | |
| 2 | ACO S 373 | ClG | 03 38 29.4 | -35 27 08 | ~ | 2029 | 0 | |||||
| 3 | NGC 1407 | rG | 03 40 11.904 | -18 34 49.36 | 10.64 | 9.67 | 9.13 | ~ | 613 | 2 | ||
| 4 | M 86 | GiG | 12 26 11.814 | +12 56 45.49 | 10.32 | 9.83 | 8.90 | 7.50 | ~ | 1126 | 1 | |
| 5 | M 49 | Sy2 | 12 29 46.8 | +08 00 01 | 13.21 | 12.17 | ~ | 2174 | 2 | |||
| 6 | NAME Virgo Cluster | ClG | 12 30 47.8 | +12 23 07 | ~ | 7107 | 0 | |||||
| 7 | M 87 | AGN | 12 30 49.42338414 | +12 23 28.0436859 | 10.16 | 9.59 | 8.63 | 7.49 | ~ | 7815 | 3 | |
| 8 | NAME NGC 4636 Group | GrG | 12 42 49.5 | +02 41 08 | ~ | 570 | 0 | |||||
| 9 | NGC 4636 | LIN | 12 42 49.8333280080 | +02 41 15.951929028 | 12.62 | 11.84 | ~ | 1156 | 1 | |||
| 10 | ACO 3526 | ClG | 12 48 49.2 | -41 18 17 | ~ | 1154 | 2 | |||||
| 11 | NGC 4696 | rG | 12 48 49.2724775784 | -41 18 39.304053252 | 11.21 | 10.7 | ~ | 510 | 3 | |||
| 12 | NGC 5044 | BiC | 13 15 23.9607836592 | -16 23 07.547751744 | 11.9 | 10.74 | ~ | 531 | 0 | |||
| 13 | NGC 5846 | rG | 15 06 29.253 | +01 36 20.29 | 11.9 | 9.74 | ~ | 891 | 2 |
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