GammaSIG Workshop:

Science White Paper Session for the Decadal Survey

Workshop Information

Address: The George Washington University, Corcoran Hall (4th floor), 21st Street Northwest, Washington, DC, USA

When: May 23 and 24, 2018



  • Terri Brandt (NASA GSFC)
  • Eric Burns (NASA GSFC)
  • Teddy Cheung (Naval Research Laboratory)
  • Justin Finke (Naval Research Laboratory)
  • Sylvain Guiriec (George Washington University / NASA GSFC)
  • Dieter Hartmann (Clemson University)
  • Elizabeth Hays (NASA GSFC)
  • Stanley Hunter (NASA GSFC)
  • Richard Miller (Johns Hopkins University)
  • Michael Moss (George Washington University)
  • John Tomsick (UC Berkeley)
  • George Younes (George Washington University)

Remote access:

  • Marco Ajello (Clemson University)
  • Michael Briggs (UAH)
  • Regina Caputo (NASA GSFC / UMD)
  • Filippo D'Ammando (INAF-IRA)
  • Kenji Hamaguchi (NASA GSFC / UMBC)
  • Bruce Grossan (UC Berkeley)
  • Demos Kazanas (NASA GSFC)
  • Mark McConnell (UNH / SwRI)
  • Eileen Meyer (UMBC)
  • Tonia Venters (NASA GSFC)
  • Colleen Wilson-Hodge (NASA MSFC)

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White Paper Topics

Gamma-Ray Bursts: Bruce Grossan, Sylvain Guiriec, Justin Finke, Mark McConnell, Colleen Wilson-Hodge, Dieter Hartmann, Teddy Cheung, Stanley Hunter

AGNs: Eilleen Meyer, Justin Finke, Elizabeth Hays, Tonia Venters, Filippo D'Ammando, Marco Ajello

Synergies between TeV (HAWC/VERITAS/SGSO/HESS2/MAGIC/CTA) and MeV/GeV: Eilleen Meyer, Tonia Venters, Terri Brandt, Filippo D'Ammando, Marco Ajello

Particle acceleration: Justin Finke, Elizabeth Hays, Tonia Venters, Kenji Hamaguchi, Terri Brandt, Stanley Hunter

General PhysPAG/GammaSIG White Paper (summary/index): Justin Finke, Sylvain Guiriec, Tonia Venters, Colleen Wilson Hodge, Terri Brandt, John Tomsick, Teddy Cheung

Radionuclide astronomy: Mark McConnell, Tonia Venters, Richard Miller, Dieter Hartmann, Terri Brandt, Teddy Cheung

Polarization studies: Mark McConnell, Tonia Venters, Colleen Wilson-Hodge, Terri Brandt, Stanley Hunter

Science enabled with optical/IR measurements of GRB prompt emission: Mark McConnell, Dieter Hartmann, Teddy Cheung, Sylvain Guiriec

Dark Matter in the MeV regime: Tonia Venters, Richard Miller, Regina Caputo, Terri Brandt, Stanley Hunter

Inverse Compton in star-forming galaxies: Tonia Venters

Science enabled with high-energy resolution at hard X-rays: Colleen Wilson-Hodge, Dieter Hartmann

Type-1A supernovae: Richard Miller, Dieter Hartmann

Flare stars: Kenji Hamaguchi, Teddy Cheung

Isolated neutron stars: George Younes


Wednesday, May 23

9:30 - 9:45 -- Opening remarks

9:45 - 10:15 -- Dominic Benford - "One Scientist's Experience with Decadal Surveys"

10:15 - 10:30 -- Terri Brandt

10:30 - 10:45 -- Dieter Hartmann

10:45 - 11:05 -- Coffee Break

11:05 - 11:35 -- John Tomsick - "Gamma-ray White Papers from Astro2010"

11:35 - 12:00 -- Pannel Discussion

12:00 - 1:00 -- Lunch Break

1:00 - 1:30 -- Richard Miller

1:30 - 1:45 -- Group Organization

1:45 - 2:45 -- 1st Group Session

2:45 - 3:00 -- Coffee Break

3:00 - 3:15 -- Lessons learned from the 1st group session

3:15 - 5:00 -- 2nd group session

5:00 - 5:30 -- Lessons learned from the 2nd group session and progress report (1-2 slides per group)

Thursday, May 24

9:30 - 9:45 -- Goals for the day

10:15 - 11:15 -- Small group drafting

10:15 - 11:15 -- Coffee available during small group drafting

11:15 - 12:00 -- Group discussion of small group work, conclusions and next

12:00 - 1:00 -- Lunch Break

1:00 - 2:00 -- Small group drafting

2:00 - 3:00 -- Group discussion

3:00 - 3:30 -- Coffee Break

3:30 - 5:00 -- Continue small group drafting



Dominic Benford - "One Scientist's Experience with Decadal Surveys"


Terri Brandt - 2020 Decadal Survey Perspectives


John Tomsick - "Gamma-ray White Papers from Astro2010"

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739 625 327

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Science White Paper Questions:

Brainstorming front matter:

  • Gamma-ray astrophysics gets to the heart of multimessenger and time domain astronomy
  • Cosmic cycle of elements and energy

Brainstorming Science key questions:

  • What are the signatures of element creation?
  • What are the origins of the elements and their messengers?
  • How do massive stars end their lives?
  • What physical processes govern explosions, eg SN1a?
  • What do indirect tracers of dark matter tell us about their properties?
  • What does the non-thermal emission tell us about how the universe works?
  • How do particle acceleration and propagation work?
  • How do compact objets form and evolve?
  • What is the origin and composition of relativistic jets?
  • How does matter behave under extreme density, gravity, and magnetic field?

Dutch Alumni Event (7:30pm)

Lehman Auditorium (basement) - Science and Engineering Hall (SEH)