Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/WilletttagA2505tp.pdf Дата изменения: Fri Jun 5 00:07:46 2009 Дата индексирования: Tue Nov 24 13:12:47 2009 Кодировка: Поисковые слова: spitzer space telescope

Proposal Identification No.:

A2505

Date Received:

2009-Mar-17 15:15:28

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Short Astronomy Spectroscopy Extragalactic 3 Hours 3 hrs

Testing a new model of OH megamaser emission

A new radiative pumping model has recently been developed that predicts the expected OH megamaser strength in merging, IR-bright galaxies. We have recently completed Spitzer observations of a large sample of such galaxies that are able to test this model through measurements of the dust opacity and temperature. This is a critical first step in uniting theories of megamasers with observations of their global properties. We have identified a single galaxy (IRAS 23498+2423) that is predicted to show a strong OHM, but which has only an upper limit on the OH emission. We plan to observe this galaxy at Arecibo to a significantly deeper limit in OH and thus help to confirm or refute this new theory.

Name Kyle Willett

Institution University of orado

Col-

E-mail willettk@colorado.edu

Phone 303.492.6857

Student G

Remote Observing Request

Observer will travel to AO X Remote Observing In Absentia (instructions to operator)

Instrument Setup
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
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Frequency Ranges Planned
1360-1390 This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

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