Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/2014Spring/StovalltagP2866.pdf Дата изменения: Fri Sep 6 19:44:31 2013 Дата индексирования: Sat Mar 1 01:40:09 2014 Кодировка: Поисковые слова: п п п п п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п

Proposal Identification No.:

P2866 Arecibo Observatory

Date Received: 2013-Sep-03 16:58:27 William E. Gordon Telescope Observing Time Request COVER SHEET

Section I - General Information
Submitted for Sep 1 2013. This proposal has not been submitted before. Proposal Type: General 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: Regular Pulsars Galactic 27 9 0 1 hour 100-500 GB

Further Follow-up of Interesting Pulsars Discovered in the Arecibo 327 MHz Drift

Scan Survey
ABSTRACT: We propose to use 36 hours of Arecibo time over the course of a year to time two interesting pulsar systems discovered in the Arecibo Observatory 327 MHz Drift Scan Survey and to find an initial timing solution for a newly discovered source. One of the interesting systems (PSR J2234+06) is an MSP in a 32 day binary orbit with an eccentricity of 0.129. The other (PSR J2204+27) is an intermediate period pulsar with at least one companion and initial follow-up indicates that it might have at least one more companion. Outreach Abstract: We plan to observe 3 pulsars discovered in an ongoing all Arecibo visible sky pulsar survey. One of the pulsars is a very rapidly rotating pulsar with a companion star. The orbit of such pulsars with their companion is rare in that it is non-circular compared to similar systems. The second pulsar has been shown to have at least one companion star and initial observations indicate that it likely is part of a rare triple star system. The third is a recent discovery which we do not know much about due to it having only been observed one time. We plan to observe it more as part of this pro ject in order to discover the parameters of this system including how fast it spins, how this spin rate changes over time, and to get an accurate position on the pulsar.

Name Kevin M Stovall Julia Deneva

Institution University of New Mexico Naval Research Laboratory

E-mail stovall.kevin@gmail.com

Phone 325-226-2495

Student no no

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Additional Authors
Paulo Freire, pfreire@mpifr-bonn.mpg.de Maura McLaughlin, mclaughlin.maura@gmail.com Fredrick Jenet, fredricka jenet@gmail.com Jose Martinez, joeymartinez10@gmail.com, Grad. Student Sam Bates, sam.d.bates@gmail.com

This work is not part of a thesis.

Remote Observing Request

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

Section I I - Time Request
The following times are in LST. For these observations night-time is not needed.

Begin ­ End Interval­Interval 21:30 ­ 23:45 ­ ­ ­

Days Needed at This Interval 18

Time Constraints (Must Be Justified in the Prop osal Text) We request 3 different sets of observations: 3 1.5 hour observations near superior conjunction, see proposal text for details. 11 1.5 hour observations spaced every 3 days for about a month 5 1.5 hour observations every 30+/- 3 days (excluding the month containing the densely spaced observations) The requests for each semester can be swapped if densely spaced observations are more convenient in one semester over the other.

Next Semester Time Request
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Begin ­ End Interval­Interval 21:30 ­ 23:45 ­ ­ ­

Days Needed at This Interval 6

Time Constraints (Must Be Justified in the Prop osal Text) 6 1.5 hour observations every 30+/- 3 days The requests for each semester can be swapped if densely spaced observations are more convenient in one semester over the other.

Section I I I - Instruments Needed
L-wide 327

Atmospheric Observation Instruments:

Sp ecial Equipment or setup: We will use PUPPI for all observations.

Section IV - RFI Considerations Frequency Ranges Planned

This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST. This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

Section V - Observing List Target List
J2204+27 22:04:23.5 27:02:07.8 20:48:24 22:05:03 23:21:43 J2234+06 22:34:21.8 6:11:14.6 21:31:19 22:35:05 23:38:51 J2329+16 23:29:50.0 16:56:53.3 22:08:02 23:30:33 00:53:05

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