Science with the ASTRI SST Prototype - unipg.it gino.tosti/astrimeeting...S. Vercellone - ASTRI SW...

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Transcript of Science with the ASTRI SST Prototype - unipg.it gino.tosti/astrimeeting...S. Vercellone - ASTRI SW...

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

    Science with the ASTRI SST Prototype

    Stefano Vercellone (INAF-IASF Palermo)Contributions by Nicola Sartore (INAF-IASF Milano)

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  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    The ASTRI Prototype

    The foreseen ASTRI Prototype performance has been summarized in ASTRI-MC-IFSITO-5000-1 internal document by Vallania & Di Pierro.

    Maximum sensitivity : 2 - 5 TeV (1 Crab @ 5 in 7.5h)

    In the range 10 - 20 TeV : (1 Crab @ 5 in 20h)

    First Crab observations with a Schwarschild-Couder-SiPM Cherenkov telescope.

    Possible sources (from Sicily): Crab, MKN 421, MKN 501, ...

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    !Science with the ASTRI Prototype

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    Some preliminary statements

    From ASTRI-MC-IFSITO-5000-1 (Vallania & Di Pierro):

    Energy range 0.5 - 10 TeV analysis of the Hillas parameters and rough estimate of the spectra of a few bright sources.

    Energy range > 10 TeV detection of the VHE excess from a few bright sources.

    Mainly a technological demonstrator... BUT...

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    The Crab

    Our Rosetta Stone the Crab

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    MKN 501

    z = 0.034R.A.: 16h 53m 52.2s

    Dec.:+39d 45m 37s

    1 Crab [Zanin+2012]

    High state [Albert+07]

    Low state [Djannati-Atai+99]

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    !Science with the ASTRI Prototype

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    MKN 421

    z = 0.031R.A.: 11h 04m 19s Dec.:+38d 11m 41s

    1 Crab [Zanin+12]High state [Acciari+11]Low state [Aleksic+12]

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  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    Galactic Sources

    MGRO J2019+37 [Abdo+12]R.A.: 20h 18m 35.0s

    Dec.:+36d 50m 00.0s

    LSI +61o +303 [Aleksic+11]R.A.: 02h 40m 34s

    Dec.:+61d 15m 25s

    HESS J1908+063 [Aharonian+09]R.A.: 20h 18m 35.0s

    Dec.:+36d 50m 00.0s

    1 Crab [Zanin+12]

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  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    Some preliminary comments

    One of the main question is:

    when the prototype will start acquiring astrophysical data ?

    The structure (w/o mirrors and camera) should be ready in October 2013

    Is it realistic to plan the first-light observation at the end of Spring 2014 ?

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    Rough estimate of sources visibility

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  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    Some preliminary comments

    Applicable to the SST Prototype only.

    Do we need a scheduling of the observations YES

    Do we need a fast repointing mode for GRBs alert NO

    Do we need a re-scheduling of the observations (within a few hours) in case of a flaring Crab event-like YES

    Do we need a science simulator for our data YES

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    A preliminary summary

    Applicable to the SST Prototype only.

    The number of sources that can be observed and detected by the ASTRI Prototype is extremely limited.

    Most of the time will be spent for calibrations (both HW and SW).

    Expected time-life (before the mini-array advent) about 1.5 yr.

    Science IS feasible, although its difficult it will lead to new discoveries.

    Next steps (part I): investigate the time domain. investigate synergies with other observatories (cross-calibration with

    MAGIC, multi-wavelengths observations, ...).

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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    A preliminary summary

    Next steps (part II):Define I/F between different items (SW/SW, HW/HW, HW/SW).Some packages already defined, this could be a good starting point.Some tools already in hands, lets share them.

  • S. Vercellone - ASTRI SW Telecon - 2012 May 11

    !Science with the ASTRI Prototype

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