JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work...

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JRA3: Laboratory Astrophysics Atomic & Nuclear
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Transcript of JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work...

Page 1: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

JRA3: Laboratory Astrophysics

Atomic & Nuclear

Page 2: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Overview

• Coordinator JRA3: Wim Hermsen

• Two work packages:

• WP1: atomic physics (coordinators Ehud Behar & Jelle Kaastra)

• WP2: nuclear physics (coordinator Roland Diehl)

Page 3: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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WP1: Atomic Physics

Page 4: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Atomic physics

• Different physical conditions and situations in astrophysical sources:

• Collisional ionisation versus Photoionisation

• Emission versus absorption spectra

• Foreground/Background emission and absorption from cold or ionised gas

• All probed by X-ray spectroscopy

Page 5: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Current status

• For most processes, basics are understood• Accuracy & completeness of atomic data is

highly inhomogeneous• Robust estimates of physical parameters in

astrophysical sources often depends on subtleties of the atomic data

• Need for improved data & codes, to be obtained through calculations, experiments & code development

Page 6: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Networking & education

• In addition to JRA3 research activities we propose:

• Annual workshops: comparing codes & models, exchanging of new ideas (50 k, incl travel)

• Combined with X-ray spectroscopy school (twice, @ 20 k each)

• Example: MSSL workshop & school 17-20 March 2009, see http://www.mssl.ucl.ac.uk/~ajb/workshop3/

Page 7: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: EBIT measurements of DR

• EBIT instrument @ TUB Berlin: measurements of dielectronic recombination

• Plot: DR measurements compared to HULLAC calculations; other processes also desirable (e.g. for Fe&Ni-K, @ calorimeter resolution)

• Needs: experimental postdoc @ TUB and computational postdoc @ Technion

• Prime contacts: Biedermann, Behar

DR of W, Biedermann et al. 2008

Page 8: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: further development Titan code

• Titan unique amongst photoionisation codes: best treatment radiative transfer

• Needs postdoc, support for further development

• Prime contacts: Goosman, Gonçalves, Dumont (Strasbourg & Paris) Gonçalves et al. (2006)

Page 9: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: lab measurements for warm absorbers

• Goal: measure inner-shell absorption structures through lab (e.g. laser) experiments

• Need support for equipment experiments (10 k/yr?) & theor. backup (0.5 postdoc)

• Contact: Gonçalves (Paris), Behar

Chenais-Popovic et al. 2000

Page 10: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: update atomic data SPEX

• Goal: improve atomic data in multi-tasking spectral analysis code SPEX (and others)

• Time-consuming,• Need 0.4 staff for

calculations, + support postdoc for maintenance/update code at SRON

• Contact: Kaastra, Raassen, Behar

Page 11: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: implementing atomic data into applications

• Chianti project computes/collects/compiles large database atomic data for astrophysics

• Data needs to be incorporated into astrophysical applications, e.g. SPEX

• Careful assessment and benchmarking / comparison codes (Cloudy, XSTAR, SPEX, etc.) needed

• Needs postdoc @ IoA/DAMTP • Contacts: Blustin, Fabian, Del Zanna

Page 12: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: update Fe-K diagnostics high-Z elements

• Recent computational work by group Palmeri et al. on Fe-K data

• Needs extension to other high-Z elements (Astro-H, IXO)

• Needs postdoc @ Mons

• Contact: Palmeri Palmeri et al. 2003, Fe-K

Page 13: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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WP2: Nuclear Physics

Page 14: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Introduction

• Nuclear fusion reactions determine HE sources

• Nuclear properties needed to interpret γ-ray line intensities

• Nuclear interactions: key importance in instrumental backgrounds

Page 15: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Nuclear physics ingredients

• Nuclear properties & cross section measurements in lab & theory

• Instrumental interaction simulation packages (GEANT), in-orbit radiation environment monitors & simulators

Page 16: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: stimulate HEA implementing nuclear physics

workshops & projectsCosmic HE source models• Extract nucleosynthesis yields from SN models (cc-SNe,

SNIa)• Extract HE continuum light curves versus nucl. energy

productions• Explore variations observable parameters for model

discriminations • Needs: infrastructure, travel money (~50-70 k€/y)Instrument simulations• Exploit nuclear physics experiments, theoretical models,

databases for isotope properties• Needs: 1 Postdoc (~100 k€/y)

Page 17: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: enhance manpower / resources for instrument

simulations through projects

• MGGPOD (Monte Carlo code) as part of GEANT: benchmarks for known materials, cmp. measurements

• Instrument-specific simulation package development & benchmarks (Compton telescopes, others)

• Needs 3 Postdocs + travel (~180 k€/y)

Page 18: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: enhance nucl-phys applications for HEA: nuclear

spectroscopy

• Benchmarks for spectroscopic analysis known source data

• Performance & analysis radioactive-source and γ-beam tests

• Exploration instrumental line suppression tools & algorithms

• Needs: 1 Postdoc + travel (~60 k€/y)

Page 19: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Activity: establish space particle environment libs & tools for HEA

• Compile & extract space environment lib

• Exploit / extract available databases wrt. HE needs

• Establish background model lib for HE Instruments

• Needs: infrastructure, 1 Postdoc (~100 k€/y)

Page 20: JRA3: Laboratory Astrophysics Atomic & Nuclear. 2 Overview Coordinator JRA3: Wim Hermsen Two work packages: WP1: atomic physics (coordinators Ehud Behar.

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Summary of requested annual budgets

• WP1: 475 k€/yr

• WP2: 500 k€/yr

• JRA3 total: 975 k€/yr

• Warning: these are all preliminary estimates!