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Astrophsyics

Completed Mission Studies

2013-2014 X-ray Probe Study

NASA's Physics of the Cosmos (PCOS) Program established a Science and Technology Definition Team (STDT) to study concepts for a potential reduced-scale strategic spectroscopy X-ray mission with total mission cost less than $1B in FY 2013 constant year dollars. The X-ray Probe (XAP) STDT was constituted to assist the Astrophysics Division, through its PCOS Program Office, in developing a reference mission concept of high scientific, technical, and programmatic merit that would both address the X-ray science goals and program prioritizations of the Decadal Survey New World New Horizons (NWNH) for X-ray astrophysics and be executable within the Astrophysics Division's notional budget profile. For further details, see the Call for Letters of Application for Membership in the Science and Technology Definition Teams for Reduced Scale X-ray Mission Concepts.

The mission study was ended with the 2014 selection of the Athena mission in Europe, at which point NASA began efforts to partner with ESA on Athena. Please see the Athena study page for more information.

Announcing: XAP STDT Membership

PCOS is pleased to announce the names of the 16 members of the XAP STDT. There was a tremendous positive response from the community, thank you to all those who applied.

  • XAP STDT Membership:
    • Jay Bookbinder (CfA), Co-chair
    • Niel Brandt (PSU)
    • Laura Brenneman (CfA)
    • Sebastian Heinz (U. Wisconsin)
    • Ann Hornschemeier (NASA GSFC), Co-chair
    • John Hughes (Rutgers)
    • Hironori Matsumoto (Nagoya), ISAS/JAXA Representative
    • Dan McCammon (U. Wisconsin)
    • Richard Mushotzky (U. Maryland)
    • Rachel Osten (STScI)
    • Paul Plucinsky (CfA)
    • Brian Ramsey (NASA MSFC)
    • Christopher Reynolds (U. Maryland)
    • Mark Schattenburg (MIT)
  • Ex Officio:
    • Robert Petre (NASA GSFC), XAP Study Scientist
    • Rita Sambruna (NASA HQ), PCOS Program Scientist

    Reference documents for the X-ray Probe Study


    The European Space Agency LISA observatory

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  • 2 December 2022
    The 2022 AGU Fall Meeting – 12–16 December 2022, Chicago, IL »  Details.
    2 December 2022
    Join the New Great Observatories Science Analysis Group »  Details.
    2 December 2022
    New Gamma-ray Transient Network Science Analysis Group »  Details.
    2 December 2022
    Inclusion Plan Best Practices Workshop Presentations and Recordings Posted »  Details.
    2 December 2022
    ROSES-22 D.13 Astrophysics Pioneers Revised Text »  Details.
    2 December 2022
    ROSES-22 F.5 FINESST Proposals due 7 February 2023 »  Details.
    17 November 2022
    LEM Science Workshop 28 February – 3 March 2023 »  Details.
    15 November 2022
    Call for Nominations to Serve on the Executive Committee (EC) of NASA’s Physics of the Cosmos Program Analysis Group (PhysPAG) »  Details.
    14 November 2022
    First XRISM Data Analysis Workshop »  Details.
    14 November 2022
    Physics of the Cosmos Abbreviation Change »  Details.
    12 October 2022
    ROSES-22: NOI Due Date Delay for D.3 Astrophysics Research and Analysis and D.7 Strategic Astrophysics Technology; inclusion plan change »  Details.
    12 October 2022
    ROSES-22: D.9 NuSTAR GO Major Text Revision »  Details.
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