Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/CatinellatagA3018tp.pdf Дата изменения: Sat Oct 3 21:22:55 2015 Дата индексирования: Mon Apr 11 17:26:06 2016 Кодировка: Поисковые слова: астрономический календарь

Proposal Identification No.:

A3018

Date Received:

2015-Aug-30 21:49:25

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 Extragalactic 138 Hours 90 minutes

The effect of the group environment on the HI content of nearby galaxies

While it has become clear that there is a strong connection between galaxies and their environment, we are still struggling to understand how nurture shapes galaxy evolution, and which are the dominant physical mechanisms involved. Studies of HI in and around galaxies hold the key to reveal the nature and extent of environmental effects, as demonstrated by surveys of galaxy clusters such as Virgo. However, what happens to the gas in the more common group environment is still unclear, because we still lack an HI survey able to probe the gas-poor regime for a statistically significant sample of galaxies in groups. We propose to use Arecibo to measure the HI content of about 200 galaxies in large groups down to the levels of HI depletion observed in Virgo. This survey is uniquely designed to provide the reference sample for studies of gas in group galaxies.

Name Barbara Catinella

Institution UWA/ICRAR

E-mail barbara.catinella@uwa.edu.au

Phone +61 356126

481

Student no

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 1


RFI Considerations Frequency Ranges Planned
1384-1392 This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

2