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Advanced Materials Interfaces, Volume 13, Issue 11, 9 June 2026.In this research, a simple and scalable strategy for protection of a few‐layer black phosphorus (FLBP) with a cellulose nitrate‐based material is presented. The FLBP is structurally and morphologically characterized. The FLBP stability with and without nitrocellulose protection is monitored by interferometric method, surface profile examination, and ...
Paweł Jakóbczyk +8 more
wiley +1 more source
Radio Astronomy with NASA’s Deep Space Network
GalaxiesThe Deep Space Network (DSN) is the spacecraft tracking and communication infrastructure for NASA’s deep space missions. At three sites, approximately equally separated in (terrestrial) longitude, there are multiple radio antennas outfitted with ...
T. Joseph W. Lazio, Stephen M. Lichten
doaj +1 more source
The Astrophysical Journal LettersThe Event Horizon Telescope (EHT) has imaged two supermassive black holes, Messier 87* (M87*) and Sagittarius A* (Sgr A*), using very-long-baseline interferometry (VLBI).
Kaitlyn M. Shavelle +1 more
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Interferometric Inference of Black Hole Spin from Photon Ring Size and Brightness
The Astrophysical JournalThe n = 1 photon ring is a full image of the astrophysical source around a black hole, produced by photons that execute n ≈ 1 half-orbit around the event horizon on their way to an observer.
Joseph R. Farah +3 more
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Time-lapse Very Long Baseline Interferometry Imaging of the Close Active Binary HR 1099
The Astrophysical JournalWe report multiepoch astrometric very long baseline interferometry observations of the chromospherically active binary HR 1099 (V711 Tau, HD 22468) at six epochs over 63 days using the Very Long Baseline Array at 22.2 GHz.
Walter W. Golay +2 more
doaj +1 more source
Evolution of the Termination Region of the Parsec-scale Jet of 3C 84 Over the Past 20 yr
The Astrophysical JournalWe present the kinematics of the parsec-scale jet in 3C 84 from 2003 November to 2022 June observed with the Very Long Baseline Array at 43 GHz. We find that the C3 component, a bright feature at the termination region of the jet component ejected from ...
Minchul Kam +6 more
doaj +1 more source
The Astrophysical JournalThe mergers of double neutron star (DNS) systems are believed to drive the majority of short γ -ray bursts (SGRBs), while also serving as production sites of heavy r -process elements.
Hao Ding +5 more
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A Geodetic and Astrometric VLBI Experiment at 22/43/88/132 GHz
The Astronomical JournalExtending geodetic and astrometric Very Long Baseline Interferometry (VLBI) observations from traditional centimeter wavebands to millimeter wavebands offers numerous scientific potentials and benefits. However, it was considered quite challenging due to
Shuangjing Xu +16 more
doaj +1 more source
A Repeating Fast Radio Burst Source in the Outskirts of a Quiescent Galaxy
The Astrophysical Journal LettersWe report the discovery of the repeating fast radio burst (FRB) source FRB 20240209A using the Canadian Hydrogen Intensity Mapping Experiment (CHIME)/FRB telescope.
Vishwangi Shah +48 more
doaj +1 more source
Bayesian Constraints on the Ring Ellipticity of M87* 2017 Using Themis
The Astrophysical JournalMeasuring the properties of black hole images has the potential to constrain deviations from general relativity on horizon scales. Of particular interest is the ellipticity of the ring that is sensitive to the underlying spacetime.
Paul Tiede, Avery E. Broderick
doaj +1 more source