Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/2013Fall/PopovtagV2836.pdf Дата изменения: Wed Mar 6 01:08:23 2013 Дата индексирования: Fri Feb 28 21:39:56 2014 Кодировка: Поисковые слова: р р р р п п р п р п р п р п

Proposal Identification No.:

V2836 Arecibo Observatory

Date Received: 2013-Mar-01 12:33:07 William E. Gordon Telescope Observing Time Request COVER SHEET

Section I - General Information
Submitted for Mar 1 2013. This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Time Requested this 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: Regular VLBI Galactic 30 hrs

1hr over 500 GB

Studies of Scattered Pulsars on the Longest Baselines

We propose observations of strong pulsars on the longest VLBI baselines yet attained, up to 300,000 km. Our goals are to determine the distance and anisotropy of the material responsible for scattering of nearby pulsars, and to seek substructure in scattering disks of a few more distant pulsars. Outreach Abstract: We wish to use the Arecibo radio telescope in concert with a radio telescope aboard the Russian RadioAstron spacecraft. This spacecraft is in a high orbit, extending out to nearly the distance of the moon. Using this extremely wide separation, we can study the turbulent, hot gas in space between the stars. This gas deflects and scatters radio waves from all astrophysical sources. From our observations, we hope to learn how far from us this gas is located, and how large and how small the gas clouds can be. From this knowledge, we can learn more about what forms this gas, and how it affects observations of radio stars and galaxies.

Name Mikhail W. Popov Carl R. Gwinn

Institution Astro-Space Center, Lebedev Institute Univ Callifornia, Santa Barbara

E-mail popov069@asc.rssi.ru cgwinn@physics.ucsb.edu

Phone

Student no no

+1-805-8932814

1


Additional Authors
Y. Kovalev, yyk@asc.rssi.ru N. Kardashev, nkardash@asc.rssi.ru W. Alef, alef@mpifr-bonn.mpg.de J. Anderson, anderson271828@gmail.com A.S. Andrianov*, andrian@asc.rssi.ru N. Bartel, bartel@yorku.ca H. Bignall, h.bignall@curtin.edu.au S. Buchner*, sarah@hartrao.ac.za A. Deller, adeller@gmail.com P. Demorest, pdemores@nrao.edu S. Horiuchi, shoriuchi@cdscc.nasa.gov D. Jauncey, David.Jauncey@csiro.au M. Johnson*, michaeltdh@gmail.com B.C. Joshi, bchandra j@gmail.com R. Karuppusamy, ramesh.karuppusamy@gmail.com M. Kramer, prof.kramer@gmail.com C. Reynolds, c.reynolds@curtin.edu.au J. Reynolds, John.Reynolds@csiro.au A. Rudnitskiy*, almax1024@gmail.com I. Safutdinov*, yegorsaf@gmail.com V. Shishov, shishov@prao.ru T. Smirnova, tania@prao.ru V. Soglasnov, vsoglasn@asc.rssi.ru O. Wucknitz, wucknitz@mpifr-bonn.mpg.de A. Zensus, azensus@mpifr-bonn.mpg.de V. Zhuravlev, zhur@asc.rssi.ru *=graduate student

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 UT. For these observations night-time is not needed.

Begin ­ End Interval­Interval ­ ­ ­ ­

Days Needed at This Interval

Time Constraints (Must Be Justified in the Prop osal Text) Orbit of RadioAstron limits observations to certain dates, different for the different ob jects. Dates are dd-mm-yy, in UT time. Please consult with the scheduler for latest orbital information before scheduling. 2


Ranges beyond Mar 2014 are not shown here. B0525+21 B0823+26 B0834+06 B1133+16 B1859+03 B1919+21 B1933+16 B1946+35 B2016+28 16250309010101010109-13 10-13 11-13 12-13 08-13 08-13 08-13 08-13 08-13, to 24-11-13 to 03-10-14 to 13-01-14, 15-02-14 to 28-04-14 to 14-12-13, 16-12-13 to 22-12-13, 25-12-13 to 19-01-14 a a a a 16-10-13

a=individual days only

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

Sp ecial Equipment or setup:

none

Section IV - RFI Considerations Frequency Ranges Planned
316 - 332

Section V - Observing List Target List
Sources: RightAsc J B0525+21 05:28:52.3 B0823+26 08:26:51.4 B0834+06 08:37:05.6 B1133+16 11:36:03.2 B1859+03 19:01:31.8 B1919+21 19:21:44.8 B1933+16 19:35:47.8 B1946+35 19:48:25.0 B2016+28 20:18:03.8 DeclinatJ LSTRise +22:00:04 04:07:10 +26:37:24 07:10:05 +06:10:14 07:34:32 +15:51:04 10:15:03 +03:31:06 18:09:11 +21:53:02 17:59:44 +16:16:40 18:14:17 +35:40:11 19:06:46 +28:39:54 19:05:19 LSTSet NoOfSessions* 06:52:13 2 09:45:17 2 09:41:07 2 12:58:30 3 19:55:11 1 20:44:53 1 20:58:30 1 20:31:01 1 21:31:53 2

* Each session is a 2-hr observation on one of the dates that the source is visible on the RA-Arecibo baseline. We request 1 to 3 sessions for each source.

3