Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/GoldstontagA2187tp.pdf Дата изменения: Thu Aug 10 18:40:53 2006 Дата индексирования: Sat Dec 22 23:36:24 2007 Кодировка: Поисковые слова: туманность андромеды

Proposal Identification No.:

A2170

Date Received: 2005 -Oct-03 15:39:38

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 24 Hours

MAPPING HI IN A SPECTACULAR TRUE FILAMENT

Interstellar structures are visible in the 21-cm line and tend to be either thin sheets or long filaments­two distinctly different entities. These structures are best observed at somewhat high latitudes so that they can be compared with other datasets, such as IRAS and H-alpha, without contamination by unrelated gas along the line of sight. HI structures like this have never been mapped with high angular resolution and sensitivity because nearly all HI sky maps have been done with angular resolution 36 arcmin. We propose to map a ~ 20-degree long filament with Arecibo's 3.4 arcmin resolution to study the structure and kinematics of the abundant small-scale filaments that lie within and are already seen in IRAS emission. We expect these observations to help us understand the overall kinematics, structure, and statistics of the filament on large and small scales; and also its local environment.

Name joshua goldston

Institution university of california, berkeley

E-mail goldston@astro.berkeley.edu

Phone 510 643 8592

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
ALFA Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned
1400-1440

2