Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/HenningtagA2754tp.ps Дата изменения: Tue Oct 1 18:52:15 2013 Дата индексирования: Mon Apr 11 16:02:56 2016 Кодировка: Поисковые слова: dust

Proposal Identification No.: A2754 Date Received: 2013­Sep­02 15:38:39
Technical Page
This proposal has been submitted before.
The previous proposal number is A2754, A2611.
Proposal Type: Large
General Category: Astronomy
Sub­Category: Spectroscopy
Observation Category: Extragalactic
Total Time Requested: 290 Hours
Minimum Useful Time: 1 hour
Proposal Title: Surveying the Zone of Avoidance with ALFA
ABSTRACT:
Obscuration due to dust and the high stellar density at low Galactic latitudes creates a ''Zone of Avoidance'' (ZOA)
in the distribution of external galaxies, in optical/IR surveys. This creates uncertainties in our understanding of
the dynamics of the local Universe, cosmic flow fields, and the convergence of the CMB dipole. The 21cm line of HI
passes unimpeded through the ZOA. We propose to continue our deep survey of the ZOA with ALFA, as
commensal project with PALFA in the inner Galaxy, and as primary project in the outer Galaxy. Galaxies
discovered so far trace large­scale structure across the Galactic plane, and reveal both predicted and unpredicted
mass overdensities. These data are sensitive and deep enough to address not only local contributions to flow fields,
but contributions from structures 100 ­ 200 Mpc and beyond, and will uniquely contribute to flow field studies.
Name Institution E­mail Phone Student
Patricia A Henning University of New
Mexico
henning@phys.unm.edu 505­277­3166 no
Remote Observing Request
Observer will travel to AO
Remote Observing
X In Absentia (instructions to oper­
ator)
Instrument Setup
ALFA
Atmospheric Observation Instruments:
1

Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1225 ­ 1525
This proposal requires coordination with Punta Salinas radar within the band 1222­1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2