NGC 6776 'The Pentagon' - an old merger?

Details NGC 6776 'The Pentagon' - an old merger? NGC 6776 'The Pentagon' - an old merger?

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234..247s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Sept. 15, 1988, p. 247-268.

Astronomy and Astrophysics

Astronomy

11

Astronomical Photometry, Charge Coupled Devices, Cosmic Dust, Galactic Evolution, Stellar Spectra, Astronomical Photography, Early Stars, Infrared Astronomy Satellite, Perturbation Theory, Stellar Color, Stellar Rotation

Scientific paper

The authors present photometric and spectroscopic observations of NGC 6776. Photographic and CCD images show that this galaxy has perturbed and chaotic outer isophotes and possesses at least one tidal tail. Spectroscopic observations show that the system is rapidly rotating, with low stellar velocity dispersion, atypical of early-type systems. These characteristics strongly suggest that this galaxy has undergone a merger with a second system. However, the colour distribution shows no evidence for the presence of young stars, while IRAS data indicate that the system is relatively free of dust. The authors conclude that this galaxy is the remnant of a merger occurring at least 109yr ago, making it the oldest merger known, and involving at least one dust-poor disc system.

Affiliated with

Also associated with

No associations

Rating

NGC 6776 'The Pentagon' - an old merger? 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 NGC 6776 'The Pentagon' - an old merger?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NGC 6776 'The Pentagon' - an old merger? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-914907