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1 to 10 of 54 Results
Feb 26, 2024
Daniel Stern, 2024, "The High Energy X-ray Probe (HEX-P): The Circum-nuclear Environment of Growing Supermassive Black Holes", https://doi.org/10.48577/jpl.SVQS4M, Frontiers in Astronomy and Space Sciences, JPL Open Repository
Ever since the discovery of the first Active Galactic Nuclei (AGN), substantial observational and theoretical effort has been invested into understanding how massive black holes have evolved across cosmic time. Circum-nuclear obscuration is now established as a crucial component,...
Feb 26, 2024
Daniel Stern, 2024, "The High Energy X-ray Probe (HEX-P): Bringing the Cosmic X-ray Background into Focus", https://doi.org/10.48577/jpl.BXFC99, Frontiers of Astronomy and Space Sciences, JPL Open Repository
Since the discovery of the cosmic X-ray background (CXB), astronomers have strived to understand the accreting supermassive black holes (SMBHs) contributing to its peak in the 10--40 keV band. Existing soft X-ray telescopes could study this population up to only 10 keV, and, whil...
Feb 20, 2024
Daniel Stern, 2024, "The High Energy X-ray Probe (HEX-P): Constraining Supermassive Black Hole Growth with Population Spin Measurements", https://doi.org/10.48577/jpl.WMOYEB, Frontiers in Astronomy and Space Sciences, JPL Open Repository
Constraining the primary growth channel of supermassive black holes (SMBH) remains one the most actively debated questions in the context of cosmological structure formation. Owing to the expected connection between SMBH spin parameter evolution and the accretion and merger histo...
Feb 2, 2024
Daniel Stern, 2024, "The High Energy X-ray Probe (HEX-P): The Future of Hard X-ray Dual AGN Science", https://doi.org/10.48577/jpl.3AJU3R, Frontiers in Astronomy and Space Sciences, JPL Open Repository
A fundamental goal of modern-day astrophysics is to understand the connection between supermassive black hole (SMBH) growth and galaxy evolution. Merging galaxies offer one of the most dramatic channels for galaxy evolution known, capable of driving inflows of gas into galactic n...
Dec 18, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Probing the physics of the X-ray corona in active galactic nuclei", https://doi.org/10.48577/jpl.UVNCMJ, Frontiers of Astronomy and Space Sciences, JPL Open Repository
The hard, non-thermal X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries (BHXRBs) is traditionally thought to be produced by a hot cloud of electrons referred to as the corona, which resides in close vicinity to the central black hole. This emission is c...
Dec 7, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Magnetars and Other Isolated Neutron Stars", https://doi.org/10.48577/jpl.BBLHOG, Frontiers in Astronomy and Space Sciences, JPL Open Repository
The hard X-ray emission from magnetars and other isolated neutron stars remains under- explored. An instrument with higher sensitivity to hard X-rays is critical to understanding the physics of neutron star magnetospheres and also the relationship between magnetars and Fast Radio...
Dec 6, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): resolving the nature of Sgr A* flares, compact object binaries, ultra-relativistic cosmic-rays and particle accelerators in the Galactic Center", https://doi.org/10.48577/jpl.BCST9N, Frontiers in Astronomy and Space Sciences, JPL Open Repository
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 a sensitivity far superior to current facilities (including XMM-Newton and NuSTAR). These capabilities will enable revolution...
Dec 4, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries", https://doi.org/10.48577/jpl.SRHTEW, Frontiers in Astronomy and Space Sciences, JPL Open Repository
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging and broad spectral coverage (0.2-80 keV) with a sensitivity far superior to current facilities (including XMM-Newton and NuSTAR) to enable revolutionary new insights into a variety of i...
Nov 27, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Supernova remnants, pulsar wind nebulae, and nuclear astrophysics", https://doi.org/10.48577/jpl.GMU5IV, Frontiers of Astronomy and Space Sciences, JPL Open Repository
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging and broad spectral coverage (0.2--80 keV) with a sensitivity area far superior to current facilities (including XMM-Newton and NuSTAR) to enable revolutionary new insights into a variet...
Nov 27, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Supernova remnants, pulsar wind nebulae, and nuclear astrophysics", https://doi.org/10.48577/jpl.Q2LZA6, Frontiers of Astronomy and Space Sciences, JPL Open Repository
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging and broad spectral coverage (0.2--80 keV) with a sensitivity area far superior to current facilities (including XMM-Newton and NuSTAR) to enable revolutionary new insights into a variet...
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