Category: Science

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.…

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…

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…

The GBT Diffuse Ionized Gas Survey (GDIGS) is a large ongoing survey to map radio recombination line emission from diffuse ionized gas in the Galactic plane. Diffuse ionized gas known as the “Warm Ionized Medium (WIM)” is a major component of the interstellar medium, making up ∼20% of the total Milky Way gas mass and…