Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/ArzoumaniantagP2175tp.ps Дата изменения: Tue Oct 11 01:25:35 2005 Дата индексирования: Sat Dec 22 23:58:32 2007 Кодировка: Поисковые слова: эта киля

Proposal Identification No.: P2175 Date Received: 2005­Oct­03 20:33:47
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category: Galactic
Total Time Requested: 7.5 Hours
Proposal Title: A Pulsar Search to Solve a 50 Year­old Mystery
ABSTRACT:
The optical and radio nebula G70.7+1.2 has been the object of scrutiny and speculation for half a century.
Multiwavelength observations have repeatedly yielded unexpected results, ruling out successive models of the
object's nature and the mechanisms at work within it. A recent Chandra X­ray image obtained by us suggests a
new interpretation of the available facts: a hard X­ray point source near the apex of the G70.7+1.2 bow­shock
structure is a young neutron star and, in all likelihood, an active radio pulsar. We propose a deep search for
pulsations from this source through a total of 7.5 hours of L­ and S­band observations. A successful detection will
allow us to finally pin down the nature, energetics, and evolutionary history of G70.7+1.2, an object that uniquely
brings into view the interactions of pulsar winds with dense interstellar matter.
Name Institution E­mail Phone Student
Zaven Arzoumanian USRA, NASA­GSFC zaven@milkyway.gsfc.nasa.gov 301­286­2547 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
L­wide S­low
Atmospheric Observation Instruments:
Special Equipment or setup: 4 WAPPs
RFI Considerations
1

Frequency Ranges Planned
2