A Search for Young Supernovae in the Antennae Galaxies


The Antennae Galaxies, NGC 4038/9, represent the nearest major merger at a distance of 21 Mpc. The merger has stimulated recent star formation over a region about 1.7 arcminutes (10 kpc) in total extent, with the star formation concentrated in thousands of visible and obscured super star clusters. The regions of star formation include both flat-spectrum thermal radio emission and optically thin synchrotron emission. We propose a set of deep VLBI integrations with the VLBA and GBT at 256 Mbit/s in order to search for young supernovae down to a detection threshold 10 times the power of Cas A. We expect to detect 10--15 young radio supernovae at this level.

Name Other * Institution Email Phone
Jim Ulvestad PI NRAO - Socorro julvesta@nrao.edu
Susan Neff GSFC susan.g.neff@nasa.gov 301 286-5137
* PI = Principal Investigator; CO = Contact author; T = Thesis observations; S = Student

Front Ends
Gregorian S(1.73 to 2.6 GHz)

Back Ends
VLBA recorder and DAR

Type of Observing
Very Long Baseline Interferometry

Switching Type

Processor (correlator)

Allotted time 30.00 hours

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Updated 09/19/2007