Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/CordestagP2473tp.pdf Дата изменения: Mon Feb 9 20:59:12 2009 Дата индексирования: Tue Aug 18 11:14:47 2009 Кодировка: Поисковые слова: внешние планеты

Proposal Identification No.:

P2473

Date Received:

2009-Feb-02 14:45:02

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Commensal Pulsars Extragalactic 0 Hours 0

A Pulsar/Transients Survey Commensal with the ALFALFA Extragalactic Survey

We propose a commensal pulsar and transients survey ("PALFALFA") that records data during pointings of the ALFALFA extragalactic, drift-scan survey, which targets HI from galaxies. Using the new Mock spectrometers with all fourteen ALFA receivers, the 300-MHz bandwidth and 14~ec integrations provide a sensitivity to periodic pulsar s signals a factor of two better than recent Parkes surveys, or an increase in survey volume per deg squared of 2.8. We expect to find 5 to 10 millisecond pulsars in the 2100 deg squared remaining to be surveyed by ALFALFA. The survey also targets pulsars with relativistic companions, high-velocity pulsars and fast transients of Galactic or extragalactic origin. Data will be processed both as they are obtained using a multi-node cluster at the Observatory and after the fact using a larger grid of possible dispersion measure values.

Name James M Cordes

Institution Cornell University

E-mail cordes@astro.cornell.edu

Phone 607 255 0608

Student no

Remote Observing Request

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

Instrument Setup
ALFA Atmospheric Observation Instruments:

Sp ecial Equipment or setup: We need to install a small computer (two nodes) at Arecibo that can receive raw data disks written by the Mock spectrometers. Data will be processed and results sent, with modest data rates, to off-island institutions. In addition, after some reduction, the mostly raw data will be archived at Cornell University. 1


RFI Considerations Frequency Ranges Planned

2