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BC162 |
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Two Dimensional Time Delay Measurement of Intra-Day Variable Sources |
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Abstract |
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| Scintillation of flat spectrum radio sources provides a unique instrument to study the characteristics of the electron density distribution throughout the interstellar medium as well as to study the microarcsecond structure of these compact radio objects. We propose an observing method to measure the distance of the scattering screen. To do so we will measure the time delay, caused by the scintillation pattern, between the di#erent array elements. To achieve our aim we require a 24 hour observing block at 4.9 and 8.4 GHz using the VLBA and the GBT. | |||||||||||||||||||
| Investigators | |||||||||||||||||||
| Name | Other * | Institution | Phone | |
| Giuseppe Cimo | PI | MPIFR | giuseppe.cimo@utas.edu.au | |
| John Dickey | University of Tasmania | jdickey@kerr.phys.utas.edu.au | ||
| * PI = Principal Investigator; CO = Contact author; T = Thesis observations; S = Student | ||||
| Front Ends | ||||
| Gregorian C(3.95 to 5.85 GHz) Gregorian X(8.2 to 10.0 GHz) | ||||
| Back Ends | ||||
| VLBA recorder and DAR | ||||
| Type of Observing | ||||
| Very Long Baseline Interferometry | ||||
| Switching Type | ||||
| Processor (correlator) | ||||
| Socorro | ||||
| Allotted time 4.00 hours |
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| Updated 09/19/2007 |