We examine deep far-UV (16008) imaging of the HDF-N and the HUDF to search for leaking Lyman continuum radiation from starburst galaxies at z 1:3. There are 21 (primarily sub-L ) galaxies with spectroscopic redshifts between 1:1 < z < 1:5, and none are detected in the far-UV. We fit stellar population templates to the galaxies’ optical /near-infrared SEDs to determine the starburst age and leve...

I will discuss the presence of massive star clusters in starburst galaxies with an emphasis on low mass galaxies outside the local group. I will show that such galaxies, with respect to their mass and luminosity, may be very rich in young luminous clusters.

Galaxy formation scenarios predict a burst of star formation in normal galaxies at a redshift between zD 2 and zD 6 (e.g., Katz & Gunn 1991) ; such a starburst may be accompanied by a signiÐcant brightening of the j \ 158 km line of C`. Galaxies that will evolve to a total luminosity L * \ 5 ] 1010 in L _ the current era are considered at various redshifts. When the C` luminosity is evolved in ...

Lyman break galaxies (LBGs) at z ∼ 3 exhibit number densities and clustering similar to local L∗ galaxies; however, their star formation rates (SFRs) are much higher. We explore the scenario in which LBGs are starburst galaxies triggered by collisions, and thus provide an explanation for these key properties. The relative paucity of starburst galaxies at low redshift can be attributed to a much...

We present new Hubble Space Telescope STIS, high-resolution optical imaging of a sample of 13 submillimeter (submm) luminous galaxies, for which the optical emission has been pinpointed either through radio-1.4 GHz or millimeter interferometry. We find a predominance of irregular and complex morphologies in the sample, suggesting that mergers are likely common for submm galaxies. The component ...

E+A galaxies have been interpreted as post-starburst galaxies based on the presence of strong Balmer absorption lines combined with the absence of major emission lines ([OII] nor Hα). As a population of galaxies in the midst of the transformation, E+A galaxies has been subject to an intense research activity. It has been, however, difficult to investigate E+A galaxies statistically since E+A ga...

We present the first interferometric evidence of CO(1-0) emission in the intragroup starburst (IGS) region of HCG 92 (Stephan’s Quintet). BIMA’s large primary beam covers fully both the IGS region and the dominant group member galaxy Seyfert NGC 7319, as well as partially the intruder galaxy NGC 7318B. CO emission of > ∼4σ is detected in all of them. The detection of the CO emission associated ...

We use the database from Paper III to quantify the global and nuclear properties of emission-line nuclei in the Palomar spectroscopic survey of nearby galaxies. We show that the host galaxies of Seyferts, LINERs, and transition objects share remarkably similar large-scale properties and local environments. The distinguishing traits emerge on nuclear scales. Compared with LINERs, Seyfert nuclei ...

VLA observations of large-scale HI and OH absorption in the merging galaxy of NGC6240 are presented with 1 arcsec resolution. HI absorption is found across large areas of the extended radio continuum structure with a strong concentration towards the double-nucleus. The OH absorption is confined to the nuclear region. The HI and OH observations identify fractions of the gas disks of the two gala...

Passive spiral galaxies — unusual galaxies with spiral morphology without any sign of ongoing star formation — have recently been discovered to exist preferentially in cluster infalling regions (at about the virial radius, or at a local galaxy density of ∼ 1 Mpc). The discovery directly connects the passive spiral galaxies to the cluster galaxy evolution studies such as the Butcher-Oemler effec...