Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/2013Spring/WerthimertagA2774.pdf Дата изменения: Tue Sep 11 04:14:24 2012 Дата индексирования: Tue Feb 5 00:31:16 2013 Кодировка: Поисковые слова: spiral galaxy

Proposal Identification No.:

A2774 Arecibo Observatory

Date Received: 2012-Sep-04 13:51:35 William E. Gordon Telescope Observing Time Request COVER SHEET

Section I - General Information
Submitted for Sep 1 2012. This proposal has been submitted before. The previous proposal number is A2065. Proposal Type: General Category: Sub-Category: Observation Category: Time Requested this semester: Hours Next Semester: Hours already used for this pro ject: Additional Hours required to complete pro ject: Minimum Useful Time: Expected Data Storage: Prop osal Title: ABSTRACT: Commensal Astronomy Continuum SETI All ALFA time All ALFA time 7000 6000 0 less than 100 GB

SETI Surveys at Arecibo: SETI@home, Astropulse, and SERENDIP

We propose to continue use of the Arecibo telescope and the ALFA receiver to perform non-interfering commensal observations. During these observations we will utilize the existing and installed SERENDIP V.v spectrometer to perform detection of narrow band signals. We will also use the existing and installed SETI@home II data recorder to record time domain data for processing through the SETI@home and Astropulse volunteer distributed computing pro jects. The surveys we propose use signal persistence over time as a candidate identification mechanism, therefor is is neccessary that we observe the entire sky multiple times. Our current median number of observations of a spot on the sky with the ALFA receiver is 1. Outreach Abstract: This proposal will continue the use of Arecibo for the most sensitive surveys for extraterrestrial signals ever performed. These survey will utilize a special purpose signal processor known as SERENDIP V.v. We will also record data that will be sent out to hundreds of thousands of volunteers who donate their idle computer time to SETI@home. Anyone can join this effort at http://setiathome.berkeley.edu/.

Name Daniel J Werthimer Eric J Korpela

Institution University of California, Berkeley University of California, Berkeley

E-mail danw@ssl.berkeley.edu korpela@ssl.berkeley.edu

Phone 510-642-6997 510-643-6538

Student no no

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Additional Authors
Andrew Siemion, siemion@berkeley.edu, Ph.D. Student

This work is part of a PhD thesis.

Remote Observing Request

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

Section I I - Time Request
The following times are in AST. For these observations night-time is .

Begin ­ End Interval­Interval ­ ­ ­ ­

Days Needed at This Interval

Time Constraints (Must Be Justified in the Prop osal Text) There are no constraints on day or time. Whenever ALFA is being used SERENDIP V.v and the SETI@home data recorder process data autonomously.

Next Semester Time Request

Begin ­ End Interval­Interval ­ ­ ­ ­ 2

Days Needed at This Interval


Time Constraints (Must Be Justified in the Prop osal Text) There are no constraints.

Section I I I - Instruments Needed
ALFA Atmospheric Observation Instruments:

Description of Observer Equipment: SERENDIP V.v and the SETI@home data recorder. Sp ecial Equipment or setup: Regarding data requirement below, we provide our own disks which are switched by the operators when full. Disks are shipped to and from Berkeley via a shipping service in Berkeley provided containers. Should network capability ever exceed our recorder bandwidth by a large enough amount would would like to change to transferring data over the networks.

Section IV - RFI Considerations Frequency Ranges Planned
1225-1525

Section V - Observing List Target List

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