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Mori, Kaya; Ponti, Gabriele; Bachetti, Matteo; Bodaghee, Arash; Grindlay, Jonathan; Hong, Jaesub; Krivonos, Roman; Kuznetsova, Ekaterina; Mandel, Shifra; Rodriguez, Antonio; Stel, Giovanni; Zhang, Shuo; Bao, Tong; Bauer, Franz; Clavel, Maïca; Coughenour, Benjamin; García, Javier A.; Gerber, Julian; Grefenstette, Brian; Jaodand, Amruta; Lehmer, Bret; Madsen, Kristin; Nynka, Melania; Predehl, Peter; [...]

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

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  • Medientyp: E-Artikel
  • Titel: 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
  • Beteiligte: Mori, Kaya; Ponti, Gabriele; Bachetti, Matteo; Bodaghee, Arash; Grindlay, Jonathan; Hong, Jaesub; Krivonos, Roman; Kuznetsova, Ekaterina; Mandel, Shifra; Rodriguez, Antonio; Stel, Giovanni; Zhang, Shuo; Bao, Tong; Bauer, Franz; Clavel, Maïca; Coughenour, Benjamin; García, Javier A.; Gerber, Julian; Grefenstette, Brian; Jaodand, Amruta; Lehmer, Bret; Madsen, Kristin; Nynka, Melania; Predehl, Peter; [...]
  • Erschienen: Frontiers Media SA, 2024
  • Erschienen in: Frontiers in Astronomy and Space Sciences
  • Sprache: Nicht zu entscheiden
  • DOI: 10.3389/fspas.2023.1292130
  • ISSN: 2296-987X
  • Schlagwörter: Astronomy and Astrophysics
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:p><jats:italic>HEX-P</jats:italic> is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<jats:inline-formula><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="m1"><mml:mo>&lt;</mml:mo><mml:mn>1</mml:mn><mml:msup><mml:mrow><mml:mn>0</mml:mn></mml:mrow><mml:mrow><mml:mo>″</mml:mo></mml:mrow></mml:msup></mml:math></jats:inline-formula> FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities’ (including <jats:italic>XMM-Newton</jats:italic> and <jats:italic>NuSTAR</jats:italic>). These capabilities will enable revolutionary new insights into a variety of important astrophysical problems. We present scientific objectives and simulations of <jats:italic>HEX-P</jats:italic> observations of the Galactic Center (GC) and Bulge. We demonstrate the unique and powerful capabilities of the <jats:italic>HEX-P</jats:italic> observatory for studying both X-ray point sources and diffuse X-ray emission. <jats:italic>HEX-P</jats:italic> 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 <jats:italic>NuSTAR</jats:italic> 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.</jats:p>
  • Zugangsstatus: Freier Zugang