Title | Star formation in the irregular galaxy IC 4662. |
Authors | Heydari-Malayeri, M.; Melnick, J.; Martin, J. M. |
Bibcode | 1990A&A...234...99H Search ADS ↗ |
Abstract | A detailed analysis of the characteristics of the dwarf irregular galaxy IC 4662 is presented. Using high resolution images, the morphology of the galaxy is studied and a spiral feature is detected. IC 4662 is dominated by a large superassociation containing two giant H II regions of radii 5.0' and 4.5' (49 and 44pc respectively) comparable to 30 Doradus in the LMC. At least two Wolf-Rayet stars are shown to lie in these two main centers of recent star formation. The distance to the galaxy was estimated using three independent methods, yielding a mean value of 2.0 +/- 0.2 Mpc. The metallicity and several other physical parameters of the galaxy were derived. From millimeter ^12^CO observations an upper limit of 2 10^6^ M_sun_ was derived for the molecular hydrogen towards IC 4662. The dust content of IC 4662 is very low. |
Objects | 3 Objects Search NED ↙ |