The Science Case for Simultaneous mm-Wavelength Receivers in Radio Astronomy

Abstract

This review arose from the European Radio Astronomy Technical Forum (ERATec) meeting held in Firenze, October 2015, and aims to highlight the breadth and depth of the high-impact science that will be aided and assisted by the use of simultaneous mm-wavelength receivers. Recent results and opportunities are presented and discussed from the fields of: continuum VLBI (observations of weak sources, astrometry, observations of AGN cores in spectral index and Faraday rotation), spectral line VLBI (observations of evolved stars and massive star-forming regions) and time domain observations of the flux variations arising in the compact jets of X-ray binaries. Our survey brings together a large range of important science applications, which will greatly benefit from simultaneous observing at mm-wavelengths. Such facilities are essential to allow these applications to become more efficient, more sensitive and more scientifically robust. In some cases without simultaneous receivers the science goals are simply unachievable. Similar benefits would exist in many other high frequency astronomical fields of research.

arXiv commentaccepted New Astronomical Reviews

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Cited by in corpus (6)

• Precise radio astrometry and new developments for the next generation of instruments
• Multi-frequency Black Hole Imaging for the Next-Generation Event Horizon Telescope
• Enabling Transformational ngEHT Science via the Inclusion of 86 GHz Capabilities
• Registration of H${}_2$O and SiO masers in the Calabash Nebula, to confirm the Planetary Nebula paradigm
• Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration
• Shared-optical-path VLBI frequency phase transfer from 86 to 258 GHz on an 8600 km baseline: Demonstrated with the APEX and IRAM 30 m telescopes