Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/HarringtontagA2926tp.pdf Дата изменения: Tue Jul 1 19:40:43 2014 Дата индексирования: Mon Apr 11 17:41:44 2016 Кодировка: Поисковые слова: einstein

Proposal Identification No.:

A2926

Date Received:

2014-Jul-01 10:44:22

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:
We propose observations of the IR/sub-mm/radio luminous source, J020941.3+001559, at a redshift of 2.5536. It is a distant example of an Einstein ring gravitationally-lensed system, making this source a strong candidate in which to observe water maser emission lines. High-z H2 O masers have only been discovered in lensed systems, e.g. the Impellizzeri et al (2008) discovery of the H2 O maser at a redshift of 2.64. The high sensitivity of Arecibo' s WAPP spectrometers, combined with the lensing amplification of the apparent source intensity, will enable us to probe our lensed source for water maser emission lines and as a byproduct confirm the redshift measurement derived from a CO detection with the Large Millimeter Telescope. Using the C-Band High receiver we will simultaneously search for N H3 and OH absorption and emission features. Another detection of water in the early universe will constrain the evolution of the H2 O luminosity function throughout cosmic time.

Director Discretionary Time Astronomy Spectroscopy 3hr Hours 1hr

An Arecibo Search for Water Maser Emission in a High-z Ultraluminous Lensed Galaxy with CO Emission

Name Kevin C Harrington

Institution University of Massachusetts, Amherst

E-mail kharring@umass.edu

Phone 4135599559

Student U

Remote Observing Request

X

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

Instrument Setup
C-high Atmospheric Observation Instruments:

1


Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned

2