2004A&A...419..127B


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET19:35:38

2004A&A...419..127B - Astronomy and Astrophysics, volume 419, 127-137 (2004/5-3)

Spectral characteristics of water megamaser galaxies. II. ESO103-G035, TXS2226-184, and IC1481.

BENNERT N., SCHULZ H. and HENKEL C.

Abstract (from CDS):

Long-slit optical emission-line spectra of the H2O megamaser galaxies ESO103-G035, TXS2226-184, and IC1481 are evaluated in order to look for characteristics typical for water-megamaser galaxies. We present rotation curves, line ratios, electron densities, temperatures, and Hβ luminosities. The successful line-profile decompositions rest on d-Lorentzians with an additional parameter d to adjust the wings, rather than Gaussians or Lorentzians as basic functions. No significant velocity gradient is found along the major axis in the innermost 2kpc of TXS2226-184. IC1481 reveals a spectrum suggestive of a vigorous starburst in the central kiloparsec 108 years ago. None of the three galaxies shows any hints for outflows nor special features which could give clues to the presence of H2O megamaser emission. The galaxies are of normal Seyfert-2 (ESO103-G035) or LINER (TXS2226-184, IC1481) type.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: individual: ESO103-G035, TXS2226-184, IC1481

Simbad objects: 12

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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 - 2021
#notes
1 NGC 1052 GiP 02 41 04.79851 -08 15 20.7517 11.84 11.41 10.47 10.71   ~ 1171 2
2 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4176 2
3 NGC 1386 GiP 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 472 1
4 Mrk 1210 Sy2 08 04 05.8618852704 +05 06 49.810938210   14.55 13.7     ~ 266 2
5 NGC 3079 Sy2 10 01 57.80342 +55 40 47.2428 11.57 11.54 10.86     ~ 1279 3
6 NGC 3115 GiG 10 05 13.978 -07 43 06.89   11   9.37   ~ 942 2
7 IC 2560 Sy2 10 16 18.7076737537 -33 33 49.712230914   12.53 13.31 11.25 12.2 ~ 234 0
8 NGC 4179 GiG 12 12 52.1114216001 +01 17 58.952313083   12.8       ~ 161 0
9 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2170 3
10 ESO 103-35 Sy2 18 38 20.3207055742 -65 25 39.142872479   14.75 14.53 13.24   ~ 282 0
11 NAME TXFS 2226-1821 LIN 22 29 12.488 -18 10 47.01   16.92   15.73   ~ 55 1
12 IC 1481 LIN 23 19 25.100 +05 54 22.34   14.5       ~ 85 1

    Equat.    Gal    SGal    Ecl

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2021.02.26-19:35:38

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