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Proposal Identification No.:

A2704

Date Received:

2012-Mar-01 19:29:39

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Regular Astronomy Continuum Extragalactic 50 Hours 2 hrs

Prop osal Title: Extended Imaging of Diffuse Intergalactic 430-MHz Emission in the PerseusPisces Supercluster region ABSTRACT:
We request to extend, at 430 MHz, the 230 deg2 area we observed in the Perseus-Pisces supercluster region (pro jects A2125 and A2415) in order to cover a large variety of environments ranging from cluster over filament to void locations. Our previous observations revealed strong correlation between the galaxy distribution in the supercluster region as obtained from the 2MRS and extended radio emission. DRAO interferometer night-time observations are scheduled for fall this year to match the AO field extensions. The AO and DRAO data will be combined to remove confusion by discrete sources and to search for intergalactic synchrotron radiation on all scales down to 4 arcmin. This method has already led to successful detection of diffuse radio emission in the Coma supercluster. Our proposed observations are able to place stringent constraints on the origin and evolution of cosmic magnetic fields.

Name Joern Geisbuesch

Institution Dominion Radio Astrophysical Observatory

E-mail joern.geisbuesch@nrc-cnrc.gc.ca

Phone +1 250 2324

497

Student no

Remote Observing Request

X

Observer will travel to AO Remote Observing In Absentia (instructions to operator)

Instrument Setup
430 G Atmospheric Observation Instruments: 1


Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned

2