Measuring apparent angular size of pulsars behind HII regions


We propose to observe 14 pulsars to determine their apparent angular broadening with the help of VLBA, Arecibo telescope & Green-Bank telescope in the US, and WSRT, Jodrell and Noto in Europe. Comparison of angular broadening with the other scattering parameters like pulse broadening, di ractive scintillation time scale would help to understand the characteristics of the scattering medium. Our observations will in particular help to understand the scattering properties of Cygnus complex of HII regions.

Name Other * Institution Email Phone
Ramach Ramachandran PI UC Berkeley (Astronomy) 510-642-2529
Avinash Deshpande Arecibo Observatory 787-878-2612 (ext. 288)
Carl Gwinn University of California, Sant 805 893-2814
Tapasi Ghosh Arecibo Obseratory 787 878 2612
* PI = Principal Investigator; CO = Contact author; T = Thesis observations; S = Student

Front Ends
Prime Focus 1-1 3(0.29 to 0.395 GHz)

Back Ends
VLBA recorder and DAR

Type of Observing
Very Long Baseline Interferometry

Switching Type

Processor (correlator)

Allotted time 7.00 hours

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Updated 09/15/2005