Radio map 8 Kb

Greyscale image 16 Kb
Full size image 45 Kb
NGC 5253: This remarkable starburst dwarf galaxy, 2.8 Mpc away, is the site of the youngest starburst known. On the left is the 1.3 cm radio map of an intense radio/infrared source which we consider to be a super-star-cluster and the very youngest globular cluster--only about a million years old--that has ever been observed. On the right is the Halpha image of the galaxy from the Hubble Space Telescope. The intense source is blacked out in the center. The starburst in this galaxy may have been started by the accretion of a small cloud of gas from inter-galactic space.
Press release of January 2000
Press release of June 2001

False color image 16 Kb
Henize 2-10: This galaxy looks at first to be a normal small elliptical, but on closer examination it contains a mature starburst, about 10 million years old, that was probably started when Henize 2-10 swallowed an even smaller galaxy. The picture, taken at Tel Aviv University's Wise Observatory, shows the faintest parts of the Halpha emission (the bright center is whited out); note the shells and streamers of ionized gas and the little clump of emission outside the main part of the galaxy on the right. That clump is a small star cluster that formed at the end of the tidal tail that remained after the little galaxy was swallowed.

False color image 16 Kb
NGC 4214: This Magellanic Irregular galaxy (see Hubble images) has star formation in clumps all across its center. The picture shows the 2 cm radio emission, measured at the Very Large Array; the bright knots are probably super-star clusters. The star formation in the northern section has a form of an arc around a hole. There is a very bright UV source in the hole which may have created the hole, by blowing out the gas, and triggered star formation in the arc by compressing and heating the gas there.

False color image 16 Kb
Makarian 8: This picture shows the 6 cm emission from this galaxy, measured at the Very Large Array. The clumps of young stars form a rough ring. This may be the result of two galaxies colliding to make a new one.