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1 to 10 of 42 Results
NuSTAR Observations of Candidate Subparsec Binary Supermassive Black HolesEmbargoed
May 29, 2024
Daniel Stern, 2024, "NuSTAR Observations of Candidate Subparsec Binary Supermassive Black Holes", https://doi.org/10.48577/jpl.NQJCVA, Astrophysical Journal, JPL Open Repository
We present analysis of NuSTAR X-ray observations of three AGN that were identified as candidate subparsec binary supermassive black hole (SMBH) systems in the Catalina Real-Time Transient Survey based on apparent periodicity in their optical light curves. Simulations predict that...
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 CenterEmbargoed
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...
The High Energy X-ray Probe (HEX-P): Probing Accretion onto Stellar Mass Black HolesEmbargoed
Nov 22, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Probing Accretion onto Stellar Mass Black Holes", https://doi.org/10.48577/jpl.BJHZU1, Frontiers in Astronomy and Space Sciences, JPL Open Repository
Accretion is a universal astrophysical process that plays a key role in cosmic history, from the epoch of reionization to galaxy and stellar formation and evolution. Accreting stellar-mass black holes in X-ray binaries are one of the best laboratories to study the accretion proce...
The High Energy X-ray Probe: Resolved X-ray Populations in Extragalactic EnvironmentsEmbargoed
Oct 30, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe: Resolved X-ray Populations in Extragalactic Environments", https://doi.org/10.48577/jpl.ASQKCD, Frontiers in Astronomy and Space Sciences, JPL Open Repository
The High Energy X-ray Probe (HEX-P) is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<20 arcsec FWHM) and broad spectral coverage (0.2–80 keV) with a sensitivity superior to current facilities (including XMM-Newton and NuSTAR). HEX-P will...
The High Energy X-ray Probe (HEX-P): Studying Extreme Accretion with Ultraluminous X-ray SourcesEmbargoed
Oct 30, 2023
Daniel Stern, 2023, "The High Energy X-ray Probe (HEX-P): Studying Extreme Accretion with Ultraluminous X-ray Sources", https://doi.org/10.48577/jpl.3AYAGF, Frontiers in Astronomy and Space Sciences, JPL Open Repository
Ultraluminous X-ray sources (ULXs) represent an extreme class of accreting compact objects: from the identification of some of the accretors as neutron stars to the detection of powerful winds travelling at 0.1-0.2 c, the increasing evidence points towards ULXs harbouring stellar...
An Overdensity of Lyman Break Galaxies Around the Hot Dust-Obscured Galaxy WISE J224607.56−052634.9Embargoed
Jul 5, 2023
Peter Eisenhardt, 2023, "An Overdensity of Lyman Break Galaxies Around the Hot Dust-Obscured Galaxy WISE J224607.56−052634.9", https://doi.org/10.48577/jpl.DDEGE5, Astronomy & Astrophysics, JPL Open Repository
We report the identification of Lyman Break Galaxy (LBG) candidates around the most luminous Hot Dust-Obscured Galaxy (Hot DOG) known, WISE J224607.56−052634.9 (W2246−0526), using deep r-, i-, and z-band imaging from the Gemini Multi-Object Spectrograph South (GMOS-S). We use the...
Discovery of a Low-Redshift Hot Dust-Obscured GalaxyEmbargoed
Jun 28, 2023
Peter Eisenhardt, 2023, "Discovery of a Low-Redshift Hot Dust-Obscured Galaxy", https://doi.org/10.48577/jpl.QDYE7X, The Astrophyscial Journal, JPL Open Repository
We report the discovery of the hyperluminous, highly obscured AGN WISE J190445.04+485308.9 (W1904+4853 hereafter, Lbol ∼ 1.1 × 1013 L⊙) at z = 0.415. Its well-sampled spectral energy distri- bution (SED) is dominated by infrared dust emission, though broad emission lines are dete...
HEX-P
Jan 8, 2023
Daniel Stern, 2023, "HEX-P", https://doi.org/10.48577/jpl.AZTLVF, 241st Meeting of the American Astronomical Society (AAS), JPL Open Repository
No abstract available.
HEX-P
Dec 14, 2022
Daniel Stern, 2022, "HEX-P", https://doi.org/10.48577/jpl.5HQWHA, Seminar, JPL Open Repository
No abstract available.
Extreme Quasar Variability
Aug 22, 2022
Daniel Stern, 2022, "Extreme Quasar Variability", https://doi.org/10.48577/jpl.0DACRO, Time Domain and Multi-Messenger (TDAMM) Astrophysics Workshop, JPL Open Repository
No abstract available.
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