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Proposal Identification No.: P2076 Date Received: 2005­Feb­02 06:35:20
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category:
Total Time Requested: 40 Hours
Proposal Title: Scintillation Arc Observations of PSR B1737+13
ABSTRACT:
The warm ionized interstellar medium (WIM) is an important but poorly understood constituent of the Milky Way.
Recent developments in pulsar scintillation studies -- primarily at Arecibo -- allow quasi­imaging of the WIM with
milliarcsecond resolution. PSR B1737+13 shows a remarkable amount of time­variable substructure in such studies.
These features are most easily explained as overpressured entities -- of unknown origin and duration -- in the WIM
on size scales of 1 -- 100 AU, quite possibly related to the origin of extreme scattering events. We propose a set of
32 weekly observations of this pulsar to track the movement and development of these puzzling features.
Name Institution E­mail Phone Student
Daniel R Stinebring Oberlin College dan.stinebring@oberlin.edu 440­775­8331
or 5­5207
no
Service Observing Request Remot e Observing Request
X None No
All of the observing run. Maybe
Part of the observing run. X Yes
Queue Observing
Instrument Setup
L­wide
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1

1125 ­ 1225
1260 ­ 1360
1350 ­ 1450
1440 ­ 1540
This proposal requires coordination with Punta Salinas radar within the band 1222­1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2