HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184

Details HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184 HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184

1999-12-16

arxiv.org/abs/astro-ph/9912340v1

Astronomy and Astrophysics

Astrophysics

5 pages, 2 figures (one in color), (AAS)Tex, to appear in The Astrophysical Journal Letters; also available at http://www.mp

Scientific paper

10.1086/312484

We present HST/WFPC2 images in Halpha+[NII]6548,6583 lines and continuum radiation and a VLA map at 8 GHz of the H2O gigamaser galaxy TXS2226-184. This galaxy has the most luminous H2O maser emission known to date. Our red continuum images reveal a highly elongated galaxy with a dust lane crossing the nucleus. The surface brightness profile is best fitted by a bulge plus exponential disk model, favoring classification as a highly inclined spiral galaxy (i=70 degree). The color map confirms the dust lane aligned with the galaxy major axis and crossing the putative nucleus. The Halpha+[NII] map exhibits a gaseous, jet-like structure perpendicular to the nuclear dust lane and the galaxy major axis. The radio map shows compact, steep spectrum emission which is elongated in the same direction as the Halpha+[NII] emission. By analogy with Seyfert galaxies, we therefore suspect this alignment reflects an interaction between the radio jet and the ISM. The axes of the nuclear dust disk, the radio emission, and the optical line emission apparently define the axis of the AGN. The observations suggest that in this galaxy the nuclear accretion disk, obscuring torus, and large scale molecular gas layer are roughly coplanar. Our classification of the host galaxy strengthens the trend for megamasers to be found preferentially in highly inclined spiral galaxies.

Affiliated with

Also associated with

No associations

Rating

HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST and VLA Observations of the H2O Gigamaser Galaxy TXS2226-184 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-580193