| Description |
We have recently discovered a population of .super-starbursts. at zvirgul1-3-1.5. These rare galaxies are selected from the zWiggles spectroscopic survey, and rest-frame UV and H-alpha spectroscopy suggests star-formation rates 100-500Mo-yr. These apparently high-luminosity, but low stellar mass (log(Mstar)virgul10Mo), gas rich (f_gasvirgul60%) galaxies forming extremely quickly in an extended starburst are suggestive of late time proto-galaxies, but uniquely, are selected from their nebular emission lines. We have obtained three dimensional spectroscopy of 13 galaxies and mapped the two dimensional dynamics on virgulkpc scales. The galaxies show extended star-formation on 4--16kpc scales, with dynamics which may resemble rotating systems and clumpy and intense star-formation which may indicate bulge formation. However, the impact of dust obscuration is unknown, and if these galaxies are confirmed as high luminosity ULIRGs, it would argue that these are instead mergers with structures dust, and instead comprise the low-redshift tail of the .archetypal. high-z ULIRGs and SMGs seen at zvirgul2.3. We propose short Herschel SPIRE observations of this sample of 13 galaxies. We conservatively predict 250um fluxes >12mJy, which should yield detections viable in just virgul7mins each. Our total request 6.7 hours. |
