Jason Soohoo
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View article: First Frequency Phase Transfer from the 3 mm to the 1 mm Band on an Earth-sized Baseline
First Frequency Phase Transfer from the 3 mm to the 1 mm Band on an Earth-sized Baseline Open
Frequency phase transfer (FPT) is a technique designed to increase coherence and sensitivity in radio interferometry by making use of the nondispersive nature of the troposphere to calibrate high-frequency data using solutions derived at a…
View article: First frequency phase transfer from the 3 mm to the 1 mm band on an Earth-sized baseline
First frequency phase transfer from the 3 mm to the 1 mm band on an Earth-sized baseline Open
Frequency Phase Transfer (FPT) is a technique designed to increase coherence and sensitivity in radio interferometry by making use of the non-dispersive nature of the troposphere to calibrate high-frequency data using solutions derived at …
View article: Mars Oxygen ISRU Experiment (MOXIE)—Preparing for human Mars exploration
Mars Oxygen ISRU Experiment (MOXIE)—Preparing for human Mars exploration Open
MOXIE [Mars Oxygen In Situ Resource Utilization (ISRU) Experiment] is the first demonstration of ISRU on another planet, producing oxygen by solid oxide electrolysis of carbon dioxide in the martian atmosphere. A scaled-up MOXIE would cont…
View article: A VLBI receiving system for the South Pole Telescope
A VLBI receiving system for the South Pole Telescope Open
The Event Horizon Telescope (EHT) is a very-long-baseline interferometry (VLBI) experiment that aims to observe supermassive black holes with an angular resolution that is comparable to the event horizon scale. The South Pole occupies an i…
View article: A VLBI receiving system for the South Pole Telescope
A VLBI receiving system for the South Pole Telescope Open
The Event Horizon Telescope (EHT) is a very-long-baseline interferometry (VLBI) experiment that aims to observe supermassive black holes with an angular resolution that is comparable to the event horizon scale. The South Pole occupies an i…
View article: PERSISTENT ASYMMETRIC STRUCTURE OF SAGITTARIUS A* ON EVENT HORIZON SCALES
PERSISTENT ASYMMETRIC STRUCTURE OF SAGITTARIUS A* ON EVENT HORIZON SCALES Open
The Galactic Center black hole Sagittarius A* (Sgr A*) is a prime observing target for the Event Horizon Telescope (EHT), which can resolve the 1.3 mm emission from this source on angular scales comparable to that of the general relativist…
View article: VLBI at APEX: First fringes
VLBI at APEX: First fringes Open
We have equipped the APEX telescope for 1 mm VLBI and obtained first fringes on 3C 279 at 229 GHz in May 2012 with SMA (Hawaii) and SMTO (Arizona).The fringe spacing achieved was 29 microarcseconds, adequate to directly observe strong-fiel…