Search Results - "Weintroub, J."
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1
The Photon Ring in M87
Published in The Astrophysical journal (01-08-2022)“…Abstract We report measurements of the gravitationally lensed secondary image—the first in an infinite series of so-called “photon rings”—around the…”
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Journal Article -
2
THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope
Published in The Astrophysical journal (01-07-2020)“…The Event Horizon Telescope (EHT) provides the unprecedented ability to directly resolve the structure and dynamics of black hole emission regions on scales…”
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3
Event Horizon Telescope observations of the jet launching and collimation in Centaurus A
Published in Nature astronomy (01-10-2021)“…Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimetre wavelengths have the power to reveal the launching and initial…”
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4
Verification of Radiative Transfer Schemes for the EHT
Published in The Astrophysical journal (13-07-2020)“…The Event Horizon Telescope (EHT) Collaboration has recently produced the first resolved images of the central supermassive black hole in the giant elliptical…”
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5
Tritium Beta Spectrum Measurement and Neutrino Mass Limit from Cyclotron Radiation Emission Spectroscopy
Published in Physical review letters (08-09-2023)Get full text
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First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization
Published in Astrophysical journal. Letters (01-11-2023)“…Abstract Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy…”
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7
First Sagittarius A Event Horizon Telescope Results. VII. Polarization of the Ring
Published in Astrophysical journal. Letters (01-04-2024)“…Abstract The Event Horizon Telescope observed the horizon-scale synchrotron emission region around the Galactic center supermassive black hole, Sagittarius A*…”
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First Sagittarius A Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring
Published in Astrophysical journal. Letters (01-04-2024)“…Abstract In a companion paper, we present the first spatially resolved polarized image of Sagittarius A* on event horizon scales, captured using the Event…”
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First Very Long Baseline Interferometry Detections at 870 μm
Published in The Astronomical journal (01-09-2024)“…Abstract The first very long baseline interferometry (VLBI) detections at 870 μ m wavelength (345 GHz frequency) are reported, achieving the highest…”
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10
Performance assessment of an adaptive beamformer for the submillimeter array
Published in 2016 IEEE International Symposium on Phased Array Systems and Technology (PAST) (01-10-2016)“…The Sub millimeter Array (SMA) was recently upgraded with a new wideband correlator that features a built-in beamforming system. This functionality enables the…”
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Conference Proceeding -
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Tritium Beta Spectrum and Neutrino Mass Limit from Cyclotron Radiation Emission Spectroscopy
Published in Physical review letters (2023)“…The absolute scale of the neutrino mass plays a critical role in physics at every scale, from the particle to cosmological. Measurements of the tritium…”
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Journal Article -
12
Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes
Published in Astrophysical journal. Letters (01-11-2023)“…Abstract The Event Horizon Telescope (EHT) is a millimeter very long baseline interferometry (VLBI) array that has imaged the apparent shadows of the…”
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13
Metadata for the Flux Density Calibration of the April 2018 Event Horizon Telescope Data
Published 06-12-2023“…The Event Horizon Telescope (EHT) observations carried out in 2018 April at 1.3 mm wavelengths included 9 stations in the array, comprising 7 single-dish…”
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14
Cyclotron Radiation Emission Spectroscopy of Electrons from Tritium Beta Decay and $^{83\rm m}$Kr Internal Conversion
Published 21-03-2023“…Project 8 has developed a novel technique, Cyclotron Radiation Emission Spectroscopy (CRES), for direct neutrino mass measurements. A CRES-based experiment on…”
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15
Tritium Beta Spectrum and Neutrino Mass Limit from Cyclotron Radiation Emission Spectroscopy
Published 09-12-2022“…The absolute scale of the neutrino mass plays a critical role in physics at every scale, from the particle to the cosmological. Measurements of the tritium…”
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Journal Article -
16
VLBI at APEX: First Fringes
Published in 1th European VLBI Network Symposium and Users Meeting, EVN Symposium 2012, Bordeaux, France (2012)Get full text
Conference Proceeding -
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Results from the Project 8 phase-1 cyclotron radiation emission spectroscopy detector
Published 16-03-2017“…The Project 8 collaboration seeks to measure the absolute neutrino mass scale by means of precision spectroscopy of the beta decay of tritium. Our technique,…”
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Project 8 Phase III Design Concept
Published 16-03-2017“…We present a working concept for Phase III of the Project 8 experiment, aiming to achieve a neutrino mass sensitivity of $2~\mathrm{eV}$ ($90~\%$ C.L.) using a…”
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Project 8 detector upgrades for a tritium beta decay spectrum using cyclotron radiation
Published 15-03-2017“…Following the successful observation of single conversion electrons from $^{83m}$Kr using Cyclotron Radiation Emission Spectroscopy (CRES), Project 8 is now…”
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20
Equipping the Submillimeter Array for VLBI
Published in 2011 XXXth URSI General Assembly and Scientific Symposium (01-08-2011)“…VLBI observations at a wavelength of 1.3mm have confirmed structure in SgrA* on scales of just a few Schwarzschild radii [1]. More sensitive observations in…”
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Conference Proceeding