Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/JonestagA2195tp.pdf Дата изменения: Wed Feb 8 18:33:08 2006 Дата индексирования: Sat Dec 22 22:11:54 2007 Кодировка: Поисковые слова: трехраздельная туманность

Proposal Identification No.:

A2195

Date Received:

2006-Feb-01 13:15:25

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

A Search for OH/IR stars in M33

Multi-epoch Spitzer observations of the whole of M33 allow us to select for the brightest variable sources at 3.5 microns with a variabilty amplitude appropriate for a luminous OH/IR star. We propose to observe the 9 brightest sources from regions with Solar metallicity in the hope of detecting their 1612 MHz emission. At this point the only known extra-galactic OH/IR stars are nine in the LMC. One of the benefits of detecting OH/IR stars in M33 is its accurate distance, which will allow definitive physical parameters to be obtained for ob jects with Solar metallicity, something that has not been possible for Galactic ob jects with any precision.

Name Terry J Jones

Institution Dept. Astronomy, University of Minnesota

E-mail tjj@astro.umn.edu

Phone 612 624 8009

Student no

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
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned

This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST.

2