Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/HankinstagP2070tp.pdf Дата изменения: Sat Jun 18 09:06:34 2005 Дата индексирования: Sat Dec 22 23:17:48 2007 Кодировка: Поисковые слова: arp 220

Proposal Identification No.:

P2070

Date Received:

2005-Feb-01 20:57:14

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT:
Our recent 9 GHz observations of "giant pulses" from the Crab Nebula pulsar have revealed that the dynamic sp ectrum of the interpulse contains "bands" that are p erio dic in frequency, show an initial upward frequency drift, and continue for the full pulse duration of 2-4 microseconds. The dynamic sp ectrum of the rarer main pulses shows no similar structure. We prop ose to observe b oth the main and interpulse comp onents of the Crab giant pulses at other frequencies in order to understand the origins and differences b etween these two pulse comp onents.

Regular Pulsars 40 Hours

Ultra-High Time Resolution Measurements of the Crab "Giant" Radio Pulses: Phase ­ The Interpulse

Name Timoth H Hankins

Institution New Mexico Tech

E-mail thankins@nrao.edu

Phone 505-835-7326

Student

Service Observing Request

Remot e Observing Request

X

None All of the observing run. Part of the observing run. Queue Observing

X

No Maybe Yes

Instrument Setup
C X-high

Atmospheric Observation Instruments:

Description of Observer Equipment: New Mexico Tech Fast Sampling Sampling system Sp ecial Equipment or setup: Mixer to convert 1-2 GHz IF down to 0-1 GHz. This mixer was used in 2003, but subsequently disappeared!

RFI Considerations
1


Frequency Ranges Planned

2