Physics of the Cosmos Program Analysis Group (PhysPAG)

NOTE: The PhysPAG is an analysis arm of the Astrophysics Subcommittee of the NAC Science Committee. The PCOS Program Office maintains the web page as a service to the community.


The Physics of the Cosmos Program Analysis Group (PhysPAG) serves as a forum for soliciting and coordinating input and analysis from the scientific community in support of the PCOS program objectives. The PhysPAG enables direct and regular communication through public meetings that give the community opportunities to provide its scientific and programmatic input. All interested scientists can contribute to the PhysPAG by participating in the PhysPAG meetings and by providing their input. The Executive Committee (EC) is the steering body of the PhysPAG. Its members are appointed by NASA with the concurrence of the Astrophysics Subcommittee, and their responsibilities include collecting and summarizing community input with subsequent reporting to NASA SMD via the NAC. For more information on the operation and organization of the PhysPAG, please see the signed PhysPAG Terms of Reference [PDF].

PhysPAG Science Interest Groups (SIGs)

  • Inflation Probe (Chairs: Amber Miller, Edward Wollack): Coordinate community activities and preparations for a future cosmic microwave background polarization mission.
  • Gravitational Waves (Chairs: John Conklin, Kelly Holley-Bockelmann): Coordinate community activities and preparations for a future gravitational wave mission.
  • X-rays (Chair: Mark Bautz): Coordinate community activities and preparations for a future X-ray astronomy mission.
  • Gamma Rays (Chair: Henric Krawczynski): Coordinate community activities and preparations for a future gamma ray astronomy mission.
  • Cosmic Rays (Chair: Igor Moskalenko): Coordinate community activities and preparations for a future cosmic ray astronomy mission.
  • Cosmic Structure (Chairs: Olivier Dore', Rachel Bean): Coordinate community activities for future space activities concerning the nature of dark energy, dark matter, neutrinos, and tests of inflation, as well as astrophysical galaxy evolution..

Reports by the PhysPAG

  • Final PhysPAG Response to Paul Hertz, October 8, 2015 [PDF]

Upcoming Meetings

  • High Energy Astrophysics Division (HEAD) Meeting in Sun Valley, Idaho; August 20-24, 2017
    • SIG meetings TBD

Past Meetings


  • American Physical Society Meeting in Washington, DC; January 28-31, 2017

  • 229th American Astronomical Society Meeting in Grapevine, TX; January 3-7, 2017 [Full block schedule available here]
    Note that the PhysPAG, Joint PAG, and XRSIG meetings are currently planned for Tuesday, January 3rd, with the PhysPAG meeting in the morning. The meetings will not be at the Gaylord (AAS hotel). The rooms posted below are at the Hilton DFW Lakes Executive Conference Center; however, we will provide transport from the Gaylord (more details will be posted as they become available). In addition, Hilton provides shuttles directly from the airport.

    Additional information.
    • Tuesday, January 3rd
      • 9:00 A.M.-12:00 P.M.: PhysPAG Meeting - Room: Val Verde at Hilton, (Jamie Bock) [Full agenda here]
      • 1:30 P.M.-6:00 P.M.: Joint PAG Session on Decadal Studies (L3 + 4 Flagship studies), Room: Val Verde at Hilton [Full agenda here]
      • 5:00 P.M.-7:00 P.M.: XRSIG - Room: Spicewood Room at Hilton, (Mark Bautz) [Full agenda here]
    • Wednesday, January 4th
      • 10:00 A.M.-11:30 A.M.: HEAD I: Astronomy Across the Gravitational Wave Spectrum, Room: Grapevine D at Gaylord (Ira Thorpe)
      • 1:00 P.M.-3:30 P.M.: Science of X-ray Surveyor, Room: San Antonio 1 at Gaylord, (Alexey Vikhlinin)
    • Thursday, January 5th
      • 10:00 A.M.-11:30 A.M.: HEAD II: The Physics of the Perseus Cluster and Other Highlights, from Hitomi Room: Grapevine D at Gaylord (Chris Reynolds)
      • 2:00 P.M.-4:30 P.M.: US Involvement in the ESA Athena/L2 Mission, Room: San Antonio 1 at Gaylord, (Mike Garcia) [Full agenda here]
    • Saturday, January 7th
      • 10:00 A.M.-11:30 A.M.: NASA's 2020 Decadal Studies: An Update, Room: Grapevine B at Gaylord

Executive Committee

  • PhysPAG Executive Committee Selections, Memo from NASA Headquarters November 2016 [PDF]
  • PhysPAG Executive Committee Selections, Memo from NASA Headquarters November 2015 [PDF]
  • PhysPAG Executive Committee Selections, Memo from NASA Headquarters November 2014 [PDF]
  • PhysPAG Executive Committee Selections, Memo from NASA Headquarters December 2013 [PDF]
PhysPAG Executive Committee Membership
M. Bautz
MITX-raysDecember 2017
R. BeanCornell Univ.Dark EnergyDecember 2017
J. BeattyOhio State Univ.Particle AstrophysicsDecember 2019
J. Conklin
(Vice Chair)
Univ. of FloridaGravitational WavesDecember 2017
O. DoréJPLDark EnergyDecember 2017
S. GuiriecGeorge Washington Univ.Gamma-raysDecember 2019
K. Holley-BockelmannVanderbilt Univ.Gravitational WavesDecember 2019
R. KraftSAOX-raysDecember 2018
H. KrawczynskiWashington Univ. in St. LouisGamma-raysDecember 2017
A. MillerUSCCMBDecember 2017
I. MoskalenkoStanfordParticle AstrophysicsDecember 2018
J. TomsickUC BerkeleyX-rays and Gamma-raysDecember 2019
E. WollackNASA/GSFCCMB December 2017

Presentations to the PhysPAG

  • Far-IR Surveyor Concept [PDF]
  • X-ray Surveyor: Science drivers and strawman mission design [PDF]
  • HabEx: Notional Mission Properties and Science Applications [PDF]
  • The Advanced Technology Large-Aperture Space Telescope (ATLAST) [PDF]


Program News

23 Feb 2017
Self-nominations for the Astrophysics Advisory Committee (APAC, replaces the Astrophysics Subcommitte or APS) are requested; due date is 8 March 2017.
»  Details

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