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| Query : 2007A&A...464L...1E |
2007A&A...464L...1E - Astronomy and Astrophysics, volume 464L1-4 (2007/3-3)
Large-scale HI in nearby radio galaxies: segregation in neutral gas content with radio source size.
EMONTS B.H.C., MORGANTI R., OOSTERLOO T.A., VAN DER HULST J.M., VAN MOORSEL G. and TADHUNTER C.N.
Abstract (from CDS):
We present results of a study of neutral hydrogen (HI) in a complete sample of nearby non-cluster radio galaxies. We find that radio galaxies with large amounts of extended HI (MHI>109M☉) all have a compact radio source. The host galaxies of the more extended radio sources, all of Fanaroff & Riley type-I, do not contain these amounts of HI. We discuss several possible explanations for this segregation. The large-scale HI is mainly distributed in disk- and ring-like structures with sizes up to 190kpc and masses up to 2x1010M☉. The formation of these structures could be related to past merger events, although in some cases it may also be consistent with a cold-accretion scenario.
Abstract Copyright: ∼
Journal keyword(s): galaxies: active - galaxies: interactions - galaxies: cooling flows - galaxies: ISM - ISM: jets and outflows
Simbad objects: 10
| Number of rows : 10 |
| 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 1167 | LIN | 03 01 42.3322774176 | +35 12 20.300948892 | 13.84 | 12.77 | ~ | 382 | 1 | |||
| 2 | MCG+06-07-034 | rG | 03 01 51.4 | +35 50 23 | ~ | 179 | 1 | |||||
| 3 | Z 145-17 | Sy2 | 06 52 02.5060831464 | +27 27 39.387328884 | 14.9 | ~ | 83 | 1 | ||||
| 4 | Z 147-20 | Sy2 | 07 25 37.25833 | +29 57 14.7920 | 15.60 | ~ | 105 | 2 | ||||
| 5 | NGC 3894 | Bla | 11 48 50.35817663 | +59 24 56.3822416 | 12.9 | 11.57 | ~ | 268 | 1 | |||
| 6 | NGC 4278 | LIN | 12 20 06.8242 | +29 16 50.722 | 11.54 | 11.09 | 10.16 | ~ | 988 | 2 | ||
| 7 | 3C 277.3 | BLL | 12 54 12.0071453880 | +27 37 33.952663740 | 15.94 | ~ | 379 | 1 | ||||
| 8 | NGC 5141 | Sy2 | 13 24 51.44109717 | +36 22 42.7725745 | 13.9 | ~ | 192 | 1 | ||||
| 9 | NAME Centaurus A | BLL | 13 25 27.61521044 | -43 01 08.8050291 | 8.18 | 6.84 | 6.66 | ~ | 4774 | 3 | ||
| 10 | NGC 6328 | QSO | 17 23 41.02933859 | -65 00 36.6106377 | 13.17 | 13.2 | 11.45 | 12.2 | ~ | 270 | 1 |
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