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The Next Generation Very Large Array

Presentation #119.05 in the session Radio Astronomy in New Mexico.

Published onJul 01, 2023
The Next Generation Very Large Array

With its order-of-magnitude improvement in both sensitivity and angular resolution, and its broad range of observing frequencies, the next-generation Very Large Array (ngVLA) will be transformative in advancing our knowledge of the universe. It will be a general-use radio/millimeter facility whose frequency range, 1.2-116 GHz, will bridge the gap between ALMA (~35-950 GHz) and the SKA (~0.3-3 GHz). While the ngVLA will be a proposal-driven facility, five key science goals (KSGs) have been identified through extensive community engagement. These KSGs are: unveiling the formation of planets in the terrestrial zone; probing the astrochemical initial conditions for planetary systems and life; charting the assembly, structure, and evolution of galaxies; using Galactic Center pulsars to make a fundamental test of gravity; and understanding the formation and evolution of all sizes of black holes. In this talk, I will provide a brief overview of the ngVLA and its five KSGs, and will then focus on the use of the ngVLA for science with Galactic Center pulsars, especially testing general relativity with pulsars orbiting the central supermassive black hole.

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