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Proposal Identification No.:

V3003 Arecibo Observatory

Date Received: 2015-Mar-02 12:03:41 William E. Gordon Telescope Observing Time Request COVER SHEET

Section I - General Information
Submitted for Mar 1 2015. This proposal has not been submitted before. 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: Regular VLBI Continuum Extragalactic 50 50 180 0 1 hour 100-500 GB

Completion of the Space VLBI Survey of AGN at the Highest Angular Resolutions

We request 100 hours of Arecibo time for July 2015 - June 2016 inclusive to complete a non-imaging Space VLBI survey of the bright AGN jet cores with RadioAstron at L and C bands. Current outcome of the survey demonstrates promising results and a high detection rate at long Space VLBI baselines. The main goal of this pro ject is to study physics of AGN cores and properties of ISM by observing AGNs up to the longest RadioAstron baseline pro jections and measuring the core' s geometry and brightness temperature while taking the influence of the inter-stellar medium into full consideration. These observations will enable the highest resolution ever achieved in direct astronomical observations at the proposed bands. Outreach Abstract: This pro ject will utilize the most sensitive ground radio telescope - Arecibo - to build the sharpest ever ground-to-space interferometer with the Russian space radio telescope RadioAstron. Using such a unique system, scientists will study close proximity of super-massive black holes in other galaxies and probe physics of their bright relativistic jets and cores.

Name Yuri Y Kovalev

Nikolai S Kardashev

Institution Astro Space Center of Lebedev Physical Institute Astro Space Center of Lebedev Physical Institute

E-mail yyk@asc.rssi.ru

Phone +79151546281

Student no

nkardash@asc.rssi.ru

+74953332389

no

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Additional Authors
Kirill Sokolovsky , Peter Voitsik , Chris Salter , Tapasi Ghosh , Leonid Gurvits , Dave Jauncey , Michael Bietenholz , Robert Preston , Michael Johnson , Richard Schilizzi , and the rest of the RadioAstron AGN survey team

This work is not part of a 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 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) The proposal is submitted to cover the RadioAstron AO-3 period days and time windows for requested observations depend on the which will be available with high enough accuracy by the time of contact the RadioAstron scheduler to coordinate the Arecibo and visibility conditions. July 2015 - June 2016 inclusive. Exact accurate RadioAstron orbit prediction scheduling the observations. Please, RadioAstron scheduling within mutual

Next Semester Time Request
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Begin ­ End Interval­Interval ­ ­ ­ ­

Days Needed at This Interval

Time Constraints (Must Be Justified in the Prop osal Text) The proposal is submitted to cover the RadioAstron AO-3 period days and time windows for requested observations depend on the which will be available with high enough accuracy by the time of contact the RadioAstron scheduler to coordinate the Arecibo and visibility conditions. July 2015 - June 2016 inclusive. Exact accurate RadioAstron orbit prediction scheduling the observations. Please, RadioAstron scheduling within mutual

Section I I I - Instruments Needed
L-wide C

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

Section IV - RFI Considerations Frequency Ranges Planned

Section V - Observing List Target List
See the list of targets as part of the proposal justification (Table 1).

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