Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/MullertagA1909tp.pdf Дата изменения: Thu Aug 12 20:54:44 2004 Дата индексирования: Sat Dec 22 22:32:36 2007 Кодировка: Поисковые слова: storm

Proposal Identification No.:

A1909

Date Received:

2004-Feb-02 18:56:01

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy 40 Hours

Probing the small angle HVC population, a pilot for ALFA

We request 40 hours of time on the Arecib o telescop e to survey a 3.5 deg 2 area to prob e the small-angle HVC p opulation. The pro ject will also serve in part as a pilot for the up coming ALFA programme. The HIPASS and Leiden-Dwingelo o Hi surveys have led to impressive statistical analyses of the HVC p opulation, although due to their relatively large b eamwidths and small collecting areas, they lack the ability to detect the small-area HVC p opulation (typically the Compact HVC p opulation) where area(HVC)< 0.08deg 2 . In particular, the area(HVC) distribution function from the HIPASS dataset has shown a turn over at area(HVC)0.08 deg 2 and the extent to which this b ehavior is real, or is a selection effect is unknown. Either case has significant ramifications for understanding the distributions and statistical prop erties of the HVC p opulation and for understanding the pro cesses resp onsible for the formation of galaxy groups.

Name Erik M Muller

Institution Arecibo Observatory

E-mail emuller@naic.edu

Phone (787) 878 2612 x 359

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
1417-1423

2