Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/GehatagA2936tp.pdf Дата изменения: Thu Sep 11 21:11:39 2014 Дата индексирования: Mon Apr 11 14:53:30 2016 Кодировка: Поисковые слова: earth's atmosphere

Proposal Identification No.:

A2936

Date Received:

2014-Sep-01 12:54:23

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Extragalactic 30 Hours 2 hours

The HI Properties of Dwarf Galaxies Hosting Massive Black Holes

While black hole (BHs) inhabit the centers of essentially all massive bulge-dominated galaxies, the prevalence of BHs in dwarf galaxies is still unknown. Based on SDSS optical spectroscopy, we recently assembled the largest sample of low mass galaxies hosting central BHs. These galaxies have stellar masses comparable to the Magellanic Clouds and contain some of the least-massive BHs known in galaxy nuclei. BHs power active galactic nuclei (AGN) and AGN feedback is likely responsible for quenching star formation in massive galaxies. We propose to explore the role of AGN feedback on the HI content of low mass galaxies. We request 30 hours of Arecibo L-band 21cm observations to characterize HI emission of 27 low mass systems. Determining the impact of AGN on their low-mass host galaxies will constrain BH feedback and galaxy formation models at all mass scales.

Name Marla Geha

Institution Yale University

E-mail marla.geha@yale.edu

Phone 203-432-5796

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

RFI Considerations
1


Frequency Ranges Planned

2