Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/SmithtagA2903tp.pdf Дата изменения: Thu May 1 22:23:45 2014 Дата индексирования: Mon Apr 11 15:38:58 2016 Кодировка: Поисковые слова: molecular cloud

Proposal Identification No.:

A2903

Date Received:

2014-Mar-03 15:38:12

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 200 Hours

The Magnetic Morphology of High-Latitude Molecular Cloud MBM 40

Little is known about the formation mechanism of high-latitude molecular clouds (HLMCs), some of the nearest molecular clouds to the Sun. One possibility is that they form in regions where the galactic magnetic field forms magnetic valleys, allowing sufficient column density of neutral gas to accumulate until the gas can begin to self-shield and form molecules. Verschuur (1989) used the 140-foot at Green Bank to detect a +5.5 uG magnetic field in high latitude molecular cloud MBM 40. Existing low resolution observations indicate the gas forms a helical structure in this cloud, which may be a result of the influence of the magnetic field. In that case, we may observe changes in the B-field direction as different sightlines are observed. We propose to map the magnetic field in MBM 40 with the intent of confirming Verschuur's detection as well as gaining some insight as to the morphology of the magnetic field within this cloud.

Name Allison J Smith

Institution University of Georgia

E-mail allison@physast.uga.edu

Phone 706 280-8084

Student G

Remote Observing Request

X

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

Instrument Setup
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none 1


RFI Considerations Frequency Ranges Planned
1420-1720

2