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MEDIUM — Molecular Exploration of the Diffuse Interstellar mediUM
Project Abstract (AGBT21B_316) MEDIUM is a GBT Large Project to conduct a comprehensive, unbiased molecular absorption survey of diffuse clouds occulting the distant, centimeter-bright Galactic H II region W49N, with the overarching goals of greatly enlarging the molecular inventory of the diffuse interstellar medium and understanding its molecular complexity. Recent observations have yielded detection of…
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DEGAS — Dense Extragalactic GBT+Argus Survey
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EDGE — Extragalactic Database for Galaxy Evolution
A Representative Survey of the z=0 Universe with Full IFU Spectroscopy Spatially-resolved surveys of galaxies in both the optical and mm-wave bands are crucial to connect local physics to observed global trends and to anchor physical understanding of the processes that shape galaxies. What is sorely needed is such a survey for a galaxy sample…
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HI-MaNGA
Overview HI-MaNGA is a 21cm follow-up program for the SDSS-IV MaNGA survey. We are currently observing all z<0.05 MaNGA galaxies with the Green Bank Telescope which lack HI data from other sources. The goal of HI-MaNGA is to provide valuable information about the cold gas content of galaxies, which can help to address several of…
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DiSCo — Dynamics in Star-forming Cores
A GBT Argus Survey Despite its undisputed importance to understanding disk formation and stellar multiplicity, the kinematics of star-forming cores at scales of 0.01 − 0.05 pc (2,000 – 10,000 AU) have not been well characterized because of a lack of the required sensitivity and high spatial and spectral resolution until now. Building on a…
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GBNCC — Green Bank North Celestial Cap Survey
The Green Bank North Celestial Cap (GBNCC) survey is a 350MHz all-sky pulsar survey using the Robert C. Byrd Green Bank Telescope in West Virginia. When complete, the survey will cover the entire sky north of Declination -40° (85% of the celestial sphere). Data taking began in 2009 and processing of GBNCC data, in 2011.…
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NANOGrav — North American Nanohertz Observatory for Gravitational Waves
Overview The North American Nanohertz Observatory for Gravitational Waves Physics Frontiers Center (NANOGrav PFC) is an international collaboration using ultra-stable millisecond pulsars to detect gravitational waves. NANOGrav observes a pulsar timing array (PTA) of dozens of millisecond pulsars with approximately monthly cadence using the Robert C. Byrd Green Bank Telescope and the William E. Gordon…
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GOTHAM — GBT Observations of TMC-1: Hunting Aromatic Molecules
GOTHAM is an extremely high-sensitivity (2 mK), high-resolution (0.02 km/s) spectral line survey of the cold core TMC-1 in X, K, and Ka bands. Pilot, targeted observations of the source over only <2 GHz of total bandwidth resulted in the detection of three new astronomical molecules, including the first radio detection of a benzene-ring aromatic…