The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097

Details The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097 The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114..115w&link_type=abstract

Astronomical Journal v.114, p.115

Astronomy and Astrophysics

Astronomy

7

Galaxies: Individual: Ngc 1097, Galaxies: Jets, Galaxies: Spiral

Scientific paper

We present new observations of the jet features in the barred spiral galaxy NGC 1097, including optical spectroscopy of the brightest jet features, two-color optical imagery, new VLA mapping at 327 MHz, and archival 1.4 GHz VLA data reprocessed for improved sensitivity. No optical emission lines appear to an equivalent width limit of 15-30Å (depending on the line wavelength). The jets are uniformly blue, with B - V = 0.45 for the two well-observed jets R1 and R2. No radio emission from the jets is detected at either frequency; the 327-MHz data set particularly stringent limits on "fossil" emission from aging synchrotron electrons. The morphology of the jets is shown to be inconsistent with any conical distribution of emission enhanced by edge-brightening; their combination of transverse profile and relative narrowness cannot be reproduced with cone models. The optical colors, lack of radio emission, and morphology of the features lead us to conclude that they are tidal manifestations, perhaps produced by multiple encounters of the small elliptical companion NGC 1097 with the disk of NGC 1097. We present photometric and morphological comparisons to the tail of NGC 4651, which is similar in scale and morphology to the northeast "dogleg" feature R1 in NGC 1097.

Affiliated with

Also associated with

No associations

Rating

The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097 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 The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1184469