Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/FerdmantagP1919tp.pdf Дата изменения: Mon Jan 17 18:35:52 2005 Дата индексирования: Sat Dec 22 23:07:02 2007 Кодировка:

Proposal Identification No.:

P1919

Date Received:

2004-Feb-02 23:39:55

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: Regular Pulsars Galactic 57 Hours

Observations of Two Eclipsing Millisecond Pulsar Binary Systems in Globular

Clusters
ABSTRACT:
The precise mechanism that drives eclipsing millisecond pulsar systems is not yet certain, although various eclipse mo dels exist that do seem to supp ort many observations. The recently discovered globular cluster eclipsing pulsar systems J1518+0204C (M5C) and J1953+1846A (M71A) provide an excellent opp ortunity to examine the characteristics of such systems. In particular, we wish to test several predictions made by prominent mo dels describing eclipse b ehaviour. These include the dep endence of eclipse duration on observing frequency, the lack of eclipses at high frequencies, and the orbital-phase-dep endent variations in linear p olarization. Investigation of the M5C and M71A systems at Arecib o will allow us to further constrain mo dels of eclipse b ehaviour in these low-mass systems.

Name Robert D. Ferdman

Institution University of British Columbia

E-mail ferdman@physics.ubc.ca

Phone (604) 822-2117

Student G

Service Observing Request

Remot e Observing Request

X

None All of the observing run. Part of the observing run. Queue Observing X

No Maybe Yes

Instrument Setup
430 G L-wide S-band receiver 327

Atmospheric Observation Instruments:

Sp ecial Equipment or setup: We will use the WAPPs and ASP.

RFI Considerations
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Frequency Ranges Planned
310 420 1150 1620 2330 3000 340 440 - 1250 - 1720 - 2430 - 4000

This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with AFTWF within the band 425-435 MHz.

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