Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/LangstontagA2942tp.ps Дата изменения: Thu Sep 11 21:11:48 2014 Дата индексирования: Mon Apr 11 16:52:13 2016 Кодировка: Поисковые слова: molecules

Proposal Identication No.: A2942 Date Received: 2014-Sep-03 16:36:13
Technical Page
This proposal has been submitted before.
The previous proposal number is A2900.
Proposal Type: Regular
General Category: Astronomy
Sub-Category: Spectroscopy
Observation Category: Galactic
Total Time Requested: 15 Hours
Minimum Useful Time: 1. hour
Proposal Title: Search for Refrigerated Molecules
ABSTRACT:
It is well known that some molecules, notably formaldehyde (H2CO) and methanol (CH3OH), are found in
absorption in cold molecular clouds, and therefore must be cooled (refrigerated) to temperatures below the Cosmic
background temperature. We suggest that a class of ring molecules may be found in similar physical conditions.
Because these molecules are larger, their lowest energy transitions are at lower frequencies. We propose to test the
hypothesis that other ring molecules may be found via a search for both emission and absorption features of their
lowest energy transitions. The Taurus Molecular Cloud (TMC-1) is known to be a prime candidate for molecule
discoveries and we propose sensitive searches for select molecular candidates at the three positions.
Name Institution E-mail Phone Student
Glen I Langston National Science
Foundation
glangsto@nsf.gov 703-292-4937 no
Remote Observing Request
X Observer will travel to AO
Remote Observing
In Absentia (instructions to oper-
ator)
Instrument Setup
C S-low
Atmospheric Observation Instruments:
1

Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1800 - 3100
4000 - 6000
2