Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/KangtagA2217tp.pdf Дата изменения: Tue Mar 7 18:26:31 2006 Дата индексирования: Sat Dec 22 21:18:58 2007 Кодировка: Поисковые слова: equinox

Proposal Identification No.:

A2217

Date Received:

2006-Feb-14 12:55:55

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Continuum Galactic 30 Hours

Multi-frequency Continuum Mapping of SNR192.8-1.1

At Arecibo, we recently observed faint, high velocity HI "wings" having velocities forbidden by Galactic rotation. Many of these are likely to be the shells of the oldest supernova remnants (SNRs), now too faint to be recognized in radio continuum. One area observed shows a filamentary HI distribution, containing an expanding (>70 km/s) HI shell lying on the periphery of the faint continuum shell, SNR192.8-1.1. Although SNR192.8-1.1 has been previously mapped in the continuum, most of the existing images lack sensitivity and/or resolution. Here we propose observing the total-intensity and polarized continuum emission from SNR192.8-1.1 and its surroundings at 430 MHz, L- and S-band, enabling the definitive study of its properties and parameters, including investigating the distributions of spectral index, rotation measure, and depolarization across the SNR. A search will also be made for weak continuum features associated with the other HI filamentary structures we have found within the field.

Name Ji-hyun Kang

Institution Seoul National University

E-mail kjh@astro.snu.ac.kr

Phone 82-2-880-6623

Student G

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
430 G L-wide S-low

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned
420 - 440 MHz 1120 - 1700 MHz 2600 - 3000 MHzSNR This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST. This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

2