other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
Query : 2002MNRAS.331L..13R |
2002MNRAS.331L..13R - Mon. Not. R. Astron. Soc., 331, L13-L18 (2002/April-1)
Overpressured emission-line clouds in the haloes of powerful radio galaxies.
ROBINSON T.G., TADHUNTER C.N. and DYSON J.E.
Abstract (from CDS):
We subtract a model continuum comprising a combination of a 15-Gyr stellar template, a young stellar template and a power law, so as to be better able to measure faint diagnostic lines. Electron temperatures measured from the [Oiii](4959+5007)/4363 line ratio are in the range 10000<Te <20000K, whilst [Sii](6716/6731) densities fall between 100-500cm–3. Using these values, we find pressures within the line-emitting clouds a factor of 10-100 times higher than expected for pressure balance with the hot X-ray haloes of the host galaxies.
Previous studies of sources that show significant evidence of jet-cloud interactions, both in terms of their kinematics and ionization, have concluded that the overpressure is a result of the warm, line-emitting gas being compressed by the radio cocoon; however, there is no evidence that the radio jet is influencing the emission-line regions in four of our five objects.
We suggest that it is plausible that the line-emitting clouds have not yet relaxed into pressure equilibrium from their initial photoionization by the central active galactic nucleus.
Abstract Copyright: 2002 Blackwell Science Ltd
Journal keyword(s): galaxies: active - galaxies: haloes - galaxies: ISM
Simbad objects: 12
Number of rows : 12 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2C 94 | Sy2 | 01 08 52.8701830824 | +13 20 14.262799812 | 15.19 | ~ | 477 | 2 | ||||
2 | 3C 48 | QSO | 01 37 41.2996631208 | +33 09 35.080388820 | 16.62 | 16.20 | ~ | 2815 | 2 | |||
3 | 2XMM J080535.0+240951 | Sy2 | 08 05 35.0054956728 | +24 09 50.330022516 | 15.46 | ~ | 327 | 1 | ||||
4 | Z 150-14 | Sy2 | 08 40 02.336 | +29 49 02.73 | 20.00 | 19.62 | ~ | 192 | 1 | |||
5 | M 87 | AGN | 12 30 49.42338414 | +12 23 28.0436859 | 10.16 | 9.59 | 8.63 | 7.49 | ~ | 7190 | 3 | |
6 | 3C 277.3 | BLL | 12 54 12.0071453880 | +27 37 33.952663740 | 15.94 | ~ | 366 | 1 | ||||
7 | RX J1340.6+4018 | G | 13 40 33.4 | +40 17 48 | ~ | 41 | 1 | |||||
8 | IC 1065 | Sy2 | 14 49 21.5927137128 | +63 16 13.799495280 | 17.30 | 16.39 | ~ | 366 | 1 | |||
9 | 3C 321 | Sy2 | 15 31 43.473 | +24 04 18.93 | 16.0 | 15.40 | ~ | 326 | 1 | |||
10 | 2MASX J18334627+4727027 | Sy1 | 18 33 46.2946146576 | +47 27 02.566037088 | 18.64 | 17.24 | ~ | 201 | 1 | |||
11 | NAME Cyg A | Sy2 | 19 59 28.35656837 | +40 44 02.0972325 | 16.22 | 15.10 | ~ | 2367 | 2 | |||
12 | LEDA 2831507 | Sy2 | 22 53 03.268 | -40 57 51.44 | 20.0 | ~ | 106 | 1 |
To bookmark this query, right click on this link: simbad:objects in 2002MNRAS.331L..13R and select 'bookmark this link' or equivalent in the popup menu