| Title | Distance of two galaxies in Stephan's quintet and possible non-velocity redshifts. |
| Authors | Balkowski, C.; Bottinelli, L.; Chamaraux, P.; Gouguenheim, L.; Heidmann, J. |
| Bibcode | 1973A&A....25..319B Search ADS ↗ |
| Abstract | Summary. Twenty one-cm line observations of two galaxies in Stephan's quintet have been carried out with the radiotelescope: NGC 7319 with the high redshift cz =6590 km s ' and NGC 7320 with the low redshift cz = 755 km s `. From the measured H 1 fluxes and line widths, combined with optical data on magnitudes and photometric diameters, we deduce distances D for these galaxies using various distance criteria worked out in previous studies. We recall that these criteria are independent of the Hubble constant. We find D=(22+'95m.e.) Mpc for NGC7319 and D = (12L95 me.) Mpc for NGC 7320. It is then possible that both galaxies are at the same distance (- 17 Mpc). The probability for NGC 7319 to be at the cosmological distance corresponding to its redshift is only 1.3 percent. It is then possible that at least part of the redshift of NGC 7319 is anomalous. Key words: 21-cm line radiation - galaxies - redshift - distance of galaxies - Stephan's quintet |
| Objects | 3 Objects Search NED ↙ |
