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| Query : 1996A&A...312..357S |
1996A&A...312..357S - Astronomy and Astrophysics, volume 312357-364 (1996/8-2)
Excitation and temperature of extended gas in active galaxies. I. Observations.
STORCHI-BERGMANN T., WILSON A.S., MULCHAEY J.S. and BINETTE L.
Abstract (from CDS):
We have obtained long-slit spectroscopy of five active galaxies showing extended high excitation emission lines reaching distances of several kiloparsecs from the nuclei. Measurement of the fluxes of weak lines, such as [OIII]λ4363 and HeIIλ4686, requires careful subtraction of the contribution of the stellar population, and the procedure for this subtraction is discussed in detail. For each galaxy, we present emission-line ratios for the nucleus and the extended gas at the most distant locations for which the fluxes of the weaker high excitation lines can be measured with an uncertainty ≤30%. In a companion paper (Paper II), these line ratios are used in a reevaluation of photoionization models of extended gas in active galaxies.
Abstract Copyright: ∼
Journal keyword(s): galaxies: active - galaxies: ISM - galaxies: nuclei - galaxies: Seyfert
Simbad objects: 8
| Number of rows : 8 |
| 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 526 | Sy2 | 01 23 54.3772245792 | -35 03 55.710850788 | 14.76 | 14.60 | 13.46 | ~ | 354 | 2 | ||
| 2 | NGC 526B | Sy2 | 01 23 57.0756833232 | -35 04 09.451026408 | 15.14 | 14.5 | 13.79 | ~ | 28 | 0 | ||
| 3 | Z 386-35 | Sy1 | 01 43 57.7777898304 | +02 20 59.531401716 | 14.90 | 14.07 | ~ | 569 | 1 | |||
| 4 | NGC 1097 | LIN | 02 46 19.059 | -30 16 29.68 | 10.46 | 9.97 | 9.48 | 8.72 | 9.8 | ~ | 1448 | 3 |
| 5 | NGC 1386 | Sy1 | 03 36 46.238 | -35 59 57.39 | 12.42 | 12.16 | 11.23 | 10.76 | ~ | 553 | 1 | |
| 6 | LEDA 13982 | Sy2 | 03 51 35.7643720392 | -27 44 34.896912468 | 16.0 | ~ | 157 | 1 | ||||
| 7 | ESO 362-8 | Sy2 | 05 11 09.098 | -34 23 36.74 | 13.62 | 12.65 | 12.46 | ~ | 81 | 0 | ||
| 8 | LEDA 19313 | Sy2 | 06 36 32.2509554376 | -20 34 53.181243300 | 18.27 | 17.58 | ~ | 139 | 2 |
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