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Proposal Identication No.: P1871 Date Received: 2004-Oct-01 20:10:43
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category:
Total Time Requested: 14 Hours
Proposal Title: Studying the emission properties of the bursting pulsar J1938+22
ABSTRACT:
The recently discovered radio pulsar J1938+22 displays very remarkable behavior. In the ve minutes of data that
currently exist, the pulses are seen to occur in short-lived bursts. Each burst contains between 10 and 50 pulses.
Given its pulse period of 133 ms, this source is on for only 3.5 percent of the time. No other radio pulsars have
exhibited such behavior. The abrupt appearance of the bursts argues against an interstellar medium propagation
eect. The proposed observations require 14 hours of telescope time in order to 1) measure the period derivative of
this source which will place it in the context of the general pulsar population, and 2) study the emission properties
that make this source unique.
Name Institution E-mail Phone Student
Fredrick A Jenet JPL/Caltech merlyn@alum.mit.edu no
Service Observing Request Remot e Observing Request
X None X No
All of the observing run. Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
430 G
Atmospheric Observation Instruments:
Description of Observer Equipment: Caltech Baseband Recorder
Special Equipment or setup: none
RFI Considerations
1

Frequency Ranges Planned
425-435
This proposal requires coordination with AFTWF within the band 425-435 MHz.
2