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Proposal Identication No.: P1691 Date Received: 2002-May-31 16:34:03
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category: Galactic
Total Time Requested: 10 Hours
Proposal Title: Three X-ray Bright Neutron Star Candidates: A Search for Radio Pulsar Coun-
terparts
ABSTRACT:
We request a modest allocation (8 hr) of Arecibo time to search for radio pulsations from three X-ray{selected
neutron star candidates, two of which are associated with supernova remnants and exhibit signicantly non-thermal
X-ray spectra. The third target is a thermal X-ray point source with a very high X-ray to optical ux ratio, a
newly identied member of a growing class of mysterious nearby isolated neutron stars that may well be radio
quiet. Detection of pulsations will have important implications for our understanding of the origins, energetics, and
evolution of these unusual objects.
Name Institution E-mail Phone Student
Zaven Arzoumanian USRA/NASA-GSFC zaven@milkyway.gsfc.nasa.gov 301-286-2547 no
Service Observing Request Remot e Observing Request
X None No
All of the observing run. X Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
L-wide
Atmospheric Observation Instruments:
Special Equipment or setup: WAPP
RFI Considerations
Frequency Ranges Planned
1

1425-1525
2