Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/FertigtagA2810tp.pdf Дата изменения: Mon Mar 18 23:16:06 2013 Дата индексирования: Sat Mar 1 00:16:37 2014 Кодировка: Поисковые слова: arp 220

Proposal Identification No.:

A2810

Date Received:

2013-Mar-01 17:21:20

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 12 Hours 1 hour

Gas Consumption in Post-Merger Galaxies

Galaxy-galaxy interactions are a crucial part of galaxy evolution, with studies of these interactions showing changes in star formation rates, metallicity, AGN contribution, colours, morphologies, neutral gas content and IR emission. However, what happens post-coalescence has yet to be measured as part of a statistical study. We have therefore recently embarked on a study of the properties of post-mergers, using SDSS data to show that the SFR peaks in this final coalescence stage. What is currently unknown, however, is how much gas is left in the galaxy once the interaction is complete; is the ma jority of the gas reservoir depleted (either through consumption or stripping), or is there sufficient HI left for star formation to continue post-merger?We will tackle this question by combining our existing measurements of gas depletion in pairs of galaxies (that trace the early part of the interaction) with proposed L-wide observations of 55 post-mergers.

Name Derek J Fertig

Institution George Mason University

E-mail dfertig@masonlive.gmu.edu

Phone 410-340-6177

Student G

Remote Observing Request

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

Instrument Setup
L-wide Atmospheric Observation Instruments:

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Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
1230-1470 This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

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