HI synthesis observations of the high-redshift galaxies in Stephan's Quintet

Details HI synthesis observations of the high-redshift galaxies in Stephan's Quintet HI synthesis observations of the high-redshift galaxies in Stephan's Quintet

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...139...15s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 139, no. 1, Oct. 1984, p. 15-24.

Astronomy and Astrophysics

Astrophysics

49

Extragalactic Radio Sources, Gas Dynamics, Hydrogen Clouds, Radial Velocity, Red Shift, Spiral Galaxies, Astronomical Maps, Distance, Galactic Evolution, H Lines, Interacting Galaxies, Kinematics, Radio Spectra

Scientific paper

The authors have used the Westerbork Synthesis Telescope to map the high-velocity neutral hydrogen in the region of Stephan's Quintet with a resolution of ≡35arcsec. Three distinct velocity systems are seen, at 5700, 6000, and 6600 km s-1, and what is remarkable is that the bulk of the H I at all velocities lies outside the optical bounds of the Quintet galaxies. The authors interpret this result in terms of a collision among the high-velocity objects, including NGC 7320c, in which tidal and collisional stripping have succeeded in removing the majority of the disk gas from the interacting galaxies. Detection of H I in several galaxies near the Quintet provides evidence that the high-redshift objects are at distances commensurate with their redshifts. In this view, the apparent redshift discrepancy of Stephan's Quintet arises from the chance juxtaposition of two groupings of galaxies, at 800 and 6000 km s-1.

Affiliated with

Also associated with

No associations

Rating

HI synthesis observations of the high-redshift galaxies in Stephan's Quintet 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 HI synthesis observations of the high-redshift galaxies in Stephan's Quintet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HI synthesis observations of the high-redshift galaxies in Stephan's Quintet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1226198