Publications (7)
Science with an ngVLA: The ngVLA Reference Design
Robert Selina, Eric Murphy, Mark McKinnon +17
The next-generation Very Large Array (ngVLA) is an astronomical observatory planned to operate at centimeter wavelengths (25 to 0.26 centimeters, corresponding to a frequency range…
Chemical complexity in local diffuse and translucent clouds: ubiquitous l-C3H and CH3CN, a detection of HC3N and an upper limit on the abundance of CH2CN
Harvey Liszt, Maryvonne Gerin, Anthony Beasley +1
We present Jansky Very Large Array observations of 20 - 37 GHz absorption lines from nearby Galactic diffuse molecular gas seen against four cosmologically-distant compact radio co…
VLBA Calibrator Survey: Astrometric and Image Results
Leonid Petrov, David Grodon, Anthony Beasley +1
Positions and maps of 1608 new compact sources were obtained in twelve sessions observed during 1994--2002 at the VLBA network at 8.4/2.3 GHz. These sources are recommended for use…
The Next Generation Celestial Reference Frame
Megan Johnson, Frank Schinzel, Jeremy Darling +10
Astrometry, the measurement of positions and motions of the stars, is one of the oldest disciplines in Astronomy, extending back at least as far as Hipparchus' discovery of the pre…
ODS: A self-reporting system for radio telescopes to coexist with adaptive satellite constellations
Bang D. Nhan, Christopher G. De Pree, Anthony Beasley +14
Low Earth orbit (LEO) satellite constellations bring broadband internet and cellular service to the most remote locations on the planet. Unfortunately, many of these locations also…
Toward Spectrum Coexistence: First Demonstration of the Effectiveness of Boresight Avoidance between the NRAO Green Bank Telescope and Starlink Satellites
Bang D. Nhan, Christopher G. De Pree, Matt Iverson +4
NRAO and SpaceX have been engaged in coordinated testing efforts since Fall 2021, including conducting experiments on different interference avoidance schemes for the Karl G. Jansk…