Feedback over 44 orders of magnitude: from Gamma-rays to the Universe

COVID-19 information for PI Residents and Visitors

Conference Date:

Monday, March 14, 2016 (All day) to Wednesday, March 16, 2016 (All day)

Pirsa Collection:

Feedback over 44 Orders of Magnitude: From Gamma-rays to the Universe

Scientific Areas:

Cosmology

Active galactic nuclei feedback drives structure formation in the universe, imparting cosmological consequences by supermassive black holes. Typically this feedback acts locally, arising from the prodigious luminosity of quasars or mechanical power of jets. However, it has become apparent that non-local feedback may also occur on cosmological scales via a chain of events that begins with the very-high energy gamma-ray emission of blazars and ends with the heating of the low-density intergalactic medium, increasing its temperature by more than an order of magnitude. The viability of this mechanism depends critically on the nonlinear development of beam-plasma instabilities driven by the propagating very-high energy gamma rays; the observational impact requires large-scale cosmological simulations of the Lyman-alpha forest and the formation of dwarfs to infer. This workshop will bring researchers across a number of disciplines together, including astrophysical plasma physics, high-energy gamma-ray astronomy, Lyman-alpha forest studies, and cosmological structure formation to foster collaborative interactions among them.

Registraton for this workshop is now closed.

Marco Ajello, Clemson University
Antoine Bret, University of Castilla-La Mancha
Avery Broderick, Perimeter Institute & University of Waterloo
Philip Chang, University of Wisconsin-Milwaukee
Frederico Fiuza, SLAC Stanford University
Martin Haehnelt, University of Cambridge
Jim Hinton, Max Planck Institute for Nuclear Physics
Ulrich Kolberg, Ruhr University
Steffen Krakau, Ruhr University
Astrid Lamberts, California Institute of Technology
Matthew McQuinn, University of Washington
Eileen Meyer, University of Maryland
Houjun Mo, University of Massachusetts
Christoph Pfrommer, Heidelberg Institute for Theoretical Studies
Till Sawala, Durham University
Reinhard Schlickeiser, University Bochum
Mohamad Shalaby, Perimeter Institute & University of Waterloo
Jean-Luc Vay, Lawrence Berkeley National Laboratory
Stefan Wagner, University of Heidelberg

Marco Ajello, Clemson University
Antoine Bret, University of Castilla-La Mancha
Avery Broderick, Perimeter Institute & University of Waterloo
Philip Chang, University of Wisconsin-Milwaukee
Frederico Fiuza, SLAC Stanford University
Ruth Gregory, Durham University
Daniel Guariento, Perimeter Institute
Martin Haehnelt, University of Cambridge
Jim Hinton, Max Planck Institute for Nuclear Physics
Ulrich Kolberg, Ruhr University
Steffen Krakau, Ruhr University
Astrid Lamberts, California Institute of Technology
Matthew McQuinn, University of Washington
Eileen Meyer, University of Maryland
Houjun Mo, University of Massachusetts
Christoph Pfrommer, Heidelberg Institute for Theoretical Studies
Till Sawala, Durham University
Reinhard Schlickeiser, University Bochum
Mohamad Shalaby, Perimeter Institute & University of Waterloo
Jean-Luc Vay, Lawrence Berkeley National Laboratory
Stefan Wagner, University of Heidelberg

Monday, March 14, 2016

Time	Event	Location
8:30 – 9:00am	Registration	Reception
9:00 – 9:05am	Welcome and Opening Remarks	Bob Room
9:05 – 9:45am	Christoph Pfrommer, Heidelberg Institute for Theoretical Studies 30000 foot view of blazar heating	Bob Room
9:45 – 10:30am	Antoine Bret, University of Castilla-La Mancha The basics and not-so-basic physics of beam plasmas	Bob Room
10:30 – 11:00am	Coffee Break	Bistro – 1^st Floor
11:00 – 11:45am	Jim Hinton, Max-Planck Institute for Nuclear Physics The Basics of the Gamma-ray Sky: current observational status and future perspectives	Bob Room
11:45 – 12:30pm	Matthew McQuinn, University of Washington The thermal state of the intergalactic medium and its effect on galaxy formation	Bob Room
12:30 – 2:00pm	Lunch	Bistro – 2^nd Floor
2:00 – 2:45pm	Hojun Mo, University of Massachusetts Models of Galaxy formation: Current constraints on the star formation history and feedback	Bob Room
2:45 – 3:30pm	Phil Chang, University of Wisconsin-Milwaukee Nonlinear Plasma Instabilities	Bob Room
3:30 – 3:50pm	Ulrich Kolberg, Ruhr University Spontaneously emitted field fluctuations in the IGM and the generation of magnetic seed fields	Bob Room
3:50 – 4:20pm	Coffee Break	Bistro – 1^st Floor
4:20pm – 5:30pm	Discussion 1: Are plasma instabilities necessary? Does blazar heating solve any problems?	Bob Room

Tuesday, March 15, 2016

Time	Event	Location
9:00 – 9:45am	Martin Haehnelt, University of Cambridge Ewald Puchwein, University of Cambridge (absent) The thermal state of the IGM	Bob Room
9:45 – 10:30am	Reinhard Schlickeiser, University Bochum Magnetic fields in the early universe and beam-plasma instabilities	Bob Room
10:30 – 11:00am	Coffee Break	Bistro – 1st Floor
11:00 – 11:45am	Eileen Meyer, University of Maryland Implications of TeV emission of quasars	Bob Room
11:45 – 12:30pm	Marco Ajello, Clemson University The Fermi view of the (hard) blazar population	Bob Room
12:30 – 2:00pm	Lunch	Bistro – 2^nd Floor
2:00 – 2:45pm	Astrid Lamberts, California Institute of Technology Patchy Blazar Heating	Bob Room
2:45 – 3:05pm	Mohamad Shalaby, Perimeter Institute & University of Waterloo Nonlinear beam plasma simulations	Bob Room
3:05 – 3:25pm	Steffen Krakau, Ruhr University Plasma effects on extra galactic ultra high energy cosmic ray hadron beams in cosmic voids	Bob Room
3:25 – 3:55pm	Coffee Break	Bistro – 1st Floor
3:55 – 5:00pm	Discussion 2: What are the outstanding challenges of IGM observations? Does the Gamma-ray sky tell us anything about cosmic history of TeV blazars?	Bob Room
5:30pm onwards	Banquet	Bistro – 2^nd Floor

Wednesday, March 16, 2016

Time	Event	Location
9:00 – 9:45am	Stefan Wagner, University of Heidelberg TeV emission from blazars: physical models meet observations	Bob Room
9:45 – 10:30am	Till Sawala, Durham University Local group simulations of galaxy formation with blazar heating	Bob Room
10:30 – 11:00am	Coffee Break	Bistro – 1st Floor
11:00 – 11:45am	Frederico Fiuza, SLAC National Accelerator Laboratory Experimental plasma physics	Bob Room
11:45 – 12:30pm	Avery Broderick, Perimeter Institute & University of Waterloo Gamma-ray Halos	Bob Room
12:30 – 2:00pm	Lunch	Bistro – 2^nd Floor
2:00 – 3:30pm	Colloquium Martin Haehnelt, University of Cambridge Probing dark matter with the Lyman-alpha forest	Theater
3:30 – 4:00pm	Coffee Break	Bistro – 1st Floor
4:00 – 4:45pm	Jean-Luc Vay, Lawrence Berkeley National Laboratory recent advances in Particle-In-Cell simulations of relativistic plasmas	Bob Room
4:45 – 5:30pm	Discussion 3: Can galaxy formation constrain pre-heating or post-heating of the IGM? How can the nonlinear regime of beam-plasma instabilities be tackled?	Bob Room

Marco Ajello, Clemson University

The Fermi view of the (hard) blazar population

Antoine Bret, University of Castilla-La Mancha

The basics and not-so-basic physics of beam plasmas

Avery Broderick, Perimeter Institute & University of Waterloo

Gamma-ray Halos

Philip Chang, University of Wisconsin-Milwaukee

Nonlinear Plasma Instabilities

Frederico Fiuza, SLAC Stanford University

Experimental plasma physics

Martin Haehnelt, University of Cambridge and
Ewald Puchwein, University of Cambridge

The thermal state of the IGM

Jim Hinton, Max Planck Institute for Nuclear Physics

The Basics of the Gamma-ray Sky: current observational status and future perspectives

Ulrich Kolberg, Ruhr University

Spontaneously emitted field fluctuations in the IGM and the generation of magnetic seed fields

Steffen Krakau, Ruhr University

Plasma effects on extra galactic ultra high energy cosmic ray hadron beams in cosmic voids

Astrid Lamberts, California Institute of Technology

Patchy Blazar Heating

Matthew McQuinn, University of Washington

The thermal state of the intergalactic medium and its effect on galaxy formation

Eileen Meyer, University of Maryland

Implications of TeV emission of quasars

Houjun Mo, University of Massachusetts

Models of Galaxy formation: Current constraints on the star formation history and feedback

Christoph Pfrommer, Heidelberg Institute for Theoretical Studies

30000 foot view of blazar heating

Till Sawala, Durham University

Local group simulations of galaxy formation with blazar heating

Reinhard Schlickeiser, University Bochum

Magnetic fields in the early universe and beam-plasma instabilities

Mohamad Shalaby, Perimeter Institute & University of Waterloo

Nonlinear beam plasma simulations

Jean-Luc Vay, Lawrence Berkeley National Laboratory

recent advances in Particle-In-Cell simulations of relativistic plasmas

Wednesday Mar 16, 2016

Speaker(s):

Stefan Wagner

Steffen Krakau

Nonlinear beam plasma simulations

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Nonlinear beam plasma simulations

Tuesday Mar 15, 2016

Speaker(s):

Mohamad Shalaby

Pages

Scientific Organizers:

Avery Broderick, Perimeter Institute & University of Waterloo
Philip Chang, University of Wisconsin-Milwaukee
Astrid Lamberts, California Institute of Technology
Christoph Pfrommer, Heidelberg Institute for Theoretical Studies
Ewald Puchwein, University of Cambridge
Mohamad Shalaby, Perimeter Institute & University of Waterloo

Discussion 3

Discussion 3

recent advances in Particle-In-Cell simulations of relativistic plasmas

recent advances in Particle-In-Cell simulations of relativistic plasmas

Colloquium

Colloquium

Gamma-ray Halos

Gamma-ray Halos

Experimental plasma physics

Experimental plasma physics

Local group simulations of galaxy formation with blazar heating

Local group simulations of galaxy formation with blazar heating

TeV emission from blazars: physical models meet observations

TeV emission from blazars: physical models meet observations

Discussion 2

Discussion 2

Plasma effects on extra galactic ultra high energy cosmic ray hadron beams in cosmic voids

Plasma effects on extra galactic ultra high energy cosmic ray hadron beams in cosmic voids

Nonlinear beam plasma simulations

Nonlinear beam plasma simulations

Pages