Science Interest Group
X-Ray
The X-Ray Science Interest Group (XR SIG) serves as an active communication forum for X-Ray astrophysics. XR SIG is open to the scientific community.
About XR SIG
Supporting Mission Studies and Concept Development for Future X-Ray Observatories
The X-Ray Science Interest Group (XR SIG) will provide quantitative metrics and assessments to NASA with regard to future X-Ray observatories.
XR SIG will track and analyze evolving science goals and requirements in X-Ray astronomy, especially as current hot topics evolve. XR SIG will also analyze technology development and prioritization plans and assist the Physics of the Cosmos Program Analysis Group in determining technology needs.
The X-Ray Sky about Supporting Mission Studies and Concept Development for Future X-Ray Observatories
X-Ray SIG Chairs
Current Chairs
| Name | Institution | Term |
|---|---|---|
| David Pooley | Trinity University | Dec 2021 – Dec 2025 |
| Chien-Ting Chen | USRA / MSFC | Feb 2023 – Dec 2025 |
| Fabio Pacucci | CfA | |
| Breanna Binder | Cal Poly Pomona | |
| Steven Ehlert | MSFC |
Former Chairs
Former chairs of the X-Ray Science Interest Group (XR SIG) who served on the PhysPAG Executive Committee from 2012 through 2021.
| Name | Institution | SIG | Term |
|---|---|---|---|
| Brian Grefenstette | Caltech | XR SIG / HWO | Jan 2024 |
| Grant Tremblay | Smithsonian Astrophysical Observatory | Observatory XR SIG | Dec 2019 – Dec 2023 |
| Jillian Bellovary | Queensborough Community College | GW SIG / XR SIG | 2019 – 2022 |
| Ryan Hickox | Dartmouth College | XR SIG | 2018 – 2022 |
| John Tomsick | UC Berkeley | GR SIG / XR SIG | 2016 – 2019 |
| Mark Bautz | MIT | XR SIG | 2014 – March 2018 |
| Ralph Kraft | SAO | XR SIG | 2016 – 2018 |
| Jay Bookbinder | SAO | XR SIG | 2012 – 2016 |
| John Nousek | Penn State University | XR SIG | 2013–2016 |
News & Events
Broadband X-ray Astronomy with HEX-P: Science Drivers and Community Priorities Speaker Javier Garcia (NASA GSFC) Abstract Broadband X-ray coverage—extending from soft to hard X-rays with high sensitivity and spectral resolution—is central to advancing our understanding of black hole growth, feedback,…
X-Ray SIG Chairs Current Chairs Name Institution Term David Pooley Trinity University Dec 2021 – Dec 2025 Chien-Ting Chen USRA / MSFC Feb 2023 – Dec 2025 Fabio Pacucci CfA Breanna Binder Cal Poly Pomona Steven Ehlert MSFC Former Chairs…
Milli-Arcsecond X-ray Imaging with Normal Incidence Mirrors Speaker Herman Marshall Abstract I will describe a research path toward sub-arcsecond X-ray imaging using multilayer coated mirrors at normal incidence below 1 keV. The primary advantage of normal incidence optics is the…
Unpacking the Opportunities and Technical Hurdles to Achieving the X-ray Telescope Diffraction Limit Speaker Mark Schattenburg Presentation [PDF] Abstract X-ray telescopes with orders of magnitude higher angular resolution were proposed even before the launch of Chandra. Huge leaps in technology…
Lynx+ Mission: Building on the Lynx Astro2020 Concept, with Extended Capabilities Topic Speaker Presentation Possible Advanced Capabilities of a Lynx X-ray Microcalorimeter (LXM) Simon Bandler [PDF] Lynx 2030: Getting Involved Steven Ehlert [PDF] Lynx+ Mission: Discoveries Impacting Lynx Science &…
Physics of the Cosmos and Joint Program Analysis Group activities will be scheduled from 9am to 6pm Eastern on Sunday, 12 January 2025. Sunday, 12 January 2025 Physics of the Cosmos & Physics of the Cosmos Program Analysis Group Sessions Room: Maryland Ballroom…
X-Ray SIG Documents
Decadal Survey White Papers Project
Unlocking the Capabilities of Future High-Resolution X-ray Spectroscopy Missions Through Laboratory Astrophysics
Time Domain Studies of Neutron Star and Black Hole Populations: X-ray Identification of Compact Object Types
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