The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<10″ FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities’ (including XMM-Newton and NuSTAR). These capabilities will enable revolutionary new in...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Astronomy and Space Sciences |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2023.1292130/full |
| _version_ | 1797362568690401280 |
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| author | Kaya Mori Gabriele Ponti Gabriele Ponti Matteo Bachetti Arash Bodaghee Jonathan Grindlay Jaesub Hong Roman Krivonos Ekaterina Kuznetsova Shifra Mandel Antonio Rodriguez Giovanni Stel Shuo Zhang Tong Bao Franz Bauer Maïca Clavel Benjamin Coughenour Javier A. García Julian Gerber Brian Grefenstette Amruta Jaodand Bret Lehmer Kristin Madsen Melania Nynka Peter Predehl Ciro Salcedo Daniel Stern John Tomsick |
| author_facet | Kaya Mori Gabriele Ponti Gabriele Ponti Matteo Bachetti Arash Bodaghee Jonathan Grindlay Jaesub Hong Roman Krivonos Ekaterina Kuznetsova Shifra Mandel Antonio Rodriguez Giovanni Stel Shuo Zhang Tong Bao Franz Bauer Maïca Clavel Benjamin Coughenour Javier A. García Julian Gerber Brian Grefenstette Amruta Jaodand Bret Lehmer Kristin Madsen Melania Nynka Peter Predehl Ciro Salcedo Daniel Stern John Tomsick |
| author_sort | Kaya Mori |
| collection | DOAJ |
| description | HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<10″ FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities’ (including XMM-Newton and NuSTAR). These capabilities will enable revolutionary new insights into a variety of important astrophysical problems. We present scientific objectives and simulations of HEX-P observations of the Galactic Center (GC) and Bulge. We demonstrate the unique and powerful capabilities of the HEX-P observatory for studying both X-ray point sources and diffuse X-ray emission. HEX-P will be uniquely equipped to explore a variety of major topics in Galactic astrophysics, allowing us to 1) investigate broad-band properties of X-ray flares emitted from the supermassive black hole (BH) at Sgr A* and probe the associated particle acceleration and emission mechanisms; 2) identify hard X-ray sources detected by NuSTAR and determine X-ray point source populations in different regions and luminosity ranges; 3) determine the distribution of compact object binaries in the nuclear star cluster and the composition of the Galactic Ridge X-ray emission; 4) identify X-ray transients and measure fundamental parameters such as black hole spin; 5) find hidden pulsars in the Galactic Center; 6) search for BH–OB binaries and hard X-ray flares from young stellar objects in young massive clusters; 7) measure white dwarf (WD) masses of magnetic CVs to deepen our understanding of CV evolution and the origin of white dwarf magnetic fields; 8) explore primary particle accelerators in the GC in synergy with future TeV and neutrino observatories; 9) map out cosmic-ray distributions by observing non-thermal X-ray filaments; 10) explore past X-ray outbursts from Sgr A* through X-ray reflection components from giant molecular clouds. |
| first_indexed | 2024-03-08T16:09:47Z |
| format | Article |
| id | doaj.art-d17461d7bd6b407a8162a47e73359e92 |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-03-08T16:09:47Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-d17461d7bd6b407a8162a47e73359e922024-01-08T04:17:04ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2024-01-011010.3389/fspas.2023.12921301292130The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyondKaya Mori0Gabriele Ponti1Gabriele Ponti2Matteo Bachetti3Arash Bodaghee4Jonathan Grindlay5Jaesub Hong6Roman Krivonos7Ekaterina Kuznetsova8Shifra Mandel9Antonio Rodriguez10Giovanni Stel11Shuo Zhang12Tong Bao13Franz Bauer14Maïca Clavel15Benjamin Coughenour16Javier A. García17Julian Gerber18Brian Grefenstette19Amruta Jaodand20Bret Lehmer21Kristin Madsen22Melania Nynka23Peter Predehl24Ciro Salcedo25Daniel Stern26John Tomsick27Columbia Astrophysics Laboratory, Columbia University, New York, NY, United StatesINAF—Osservatorio Astronomico di Brera, Merate, ItalyMax-Planck-Institut für extraterrestrische Physik, Garching, GermanyINAF-Osservatorio Astronomico di Cagliari, Selargius, ItalyDepartment of Chemistry, Physics and Astronomy, Georgia College & State University, Milledgeville, GA, United StatesHarvard-Smithsonian Center for Astrophysics, Harvard University, Cambridge, MA, United StatesHarvard-Smithsonian Center for Astrophysics, Harvard University, Cambridge, MA, United StatesSpace Research Institute (IKI), Russian Academy of Sciences, Moscow, RussiaSpace Research Institute (IKI), Russian Academy of Sciences, Moscow, RussiaColumbia Astrophysics Laboratory, Columbia University, New York, NY, United StatesCahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, United StatesINAF—Osservatorio Astronomico di Brera, Merate, ItalyDepartment of Physics and Astronomy, Michigan State University, East Lansing, MI, United States0School of Astronomy and Space Science, Nanjing University, Nanjing, China1Instituto de Astrofísica, Millennium Institute of Astrophysics, Pontificia Universidad Católica de Chile, Santiago, Chile2University Grenoble Alpes, CNRS, IPAG, Grenoble, France3Space Sciences Laboratory, UC Berkeley, Berkeley, CA, United States4X-ray Astrophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United StatesColumbia Astrophysics Laboratory, Columbia University, New York, NY, United StatesCahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, United StatesCahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, United States5Department of Physics, University of Arkansas, Fayetteville, AR, United States4X-ray Astrophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States6Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, United StatesMax-Planck-Institut für extraterrestrische Physik, Garching, GermanyColumbia Astrophysics Laboratory, Columbia University, New York, NY, United States7Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States3Space Sciences Laboratory, UC Berkeley, Berkeley, CA, United StatesHEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<10″ FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities’ (including XMM-Newton and NuSTAR). These capabilities will enable revolutionary new insights into a variety of important astrophysical problems. We present scientific objectives and simulations of HEX-P observations of the Galactic Center (GC) and Bulge. We demonstrate the unique and powerful capabilities of the HEX-P observatory for studying both X-ray point sources and diffuse X-ray emission. HEX-P will be uniquely equipped to explore a variety of major topics in Galactic astrophysics, allowing us to 1) investigate broad-band properties of X-ray flares emitted from the supermassive black hole (BH) at Sgr A* and probe the associated particle acceleration and emission mechanisms; 2) identify hard X-ray sources detected by NuSTAR and determine X-ray point source populations in different regions and luminosity ranges; 3) determine the distribution of compact object binaries in the nuclear star cluster and the composition of the Galactic Ridge X-ray emission; 4) identify X-ray transients and measure fundamental parameters such as black hole spin; 5) find hidden pulsars in the Galactic Center; 6) search for BH–OB binaries and hard X-ray flares from young stellar objects in young massive clusters; 7) measure white dwarf (WD) masses of magnetic CVs to deepen our understanding of CV evolution and the origin of white dwarf magnetic fields; 8) explore primary particle accelerators in the GC in synergy with future TeV and neutrino observatories; 9) map out cosmic-ray distributions by observing non-thermal X-ray filaments; 10) explore past X-ray outbursts from Sgr A* through X-ray reflection components from giant molecular clouds.https://www.frontiersin.org/articles/10.3389/fspas.2023.1292130/fullgalaxy: centreblack hole physicsX-rays: binariesstars: cataclysmic variablesaccretionacceleration of particles |
| spellingShingle | Kaya Mori Gabriele Ponti Gabriele Ponti Matteo Bachetti Arash Bodaghee Jonathan Grindlay Jaesub Hong Roman Krivonos Ekaterina Kuznetsova Shifra Mandel Antonio Rodriguez Giovanni Stel Shuo Zhang Tong Bao Franz Bauer Maïca Clavel Benjamin Coughenour Javier A. García Julian Gerber Brian Grefenstette Amruta Jaodand Bret Lehmer Kristin Madsen Melania Nynka Peter Predehl Ciro Salcedo Daniel Stern John Tomsick The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond Frontiers in Astronomy and Space Sciences galaxy: centre black hole physics X-rays: binaries stars: cataclysmic variables accretion acceleration of particles |
| title | The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond |
| title_full | The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond |
| title_fullStr | The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond |
| title_full_unstemmed | The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond |
| title_short | The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond |
| title_sort | high energy x ray probe hex p resolving the nature of sgr a flares compact object binaries and diffuse x ray emission in the galactic center and beyond |
| topic | galaxy: centre black hole physics X-rays: binaries stars: cataclysmic variables accretion acceleration of particles |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2023.1292130/full |
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