GBT19B-047
Continuing An Extremely Deep GBT Survey of TMC-1
Abstract
We propose continuing observations of our Large Project to conduct an extremely high-sensitivity (2-3 mK), high-resolution (0.05-0.1 km/s) survey of TMC-1. Early looks at the very limited data already obtained have revealed exciting results already. The well-constrained, homogenous physical conditions and history of the source, in contrast to the canonical chemically rich sources like Sgr B2(N) and Orion-KL, remove large degeneracies between physical processes and chemical processes, making it an ideal location to nail down the chemical evolution side of astrochemical models. In turn, these models can be used to derive astrophysical insight from astrochemical observations of these molecules in other sources. The GBT is the only instrument in the world capable of reaching the required level of sensitivity at the spectral resolution required by the extraordinarily narrow spectral lines. We therefore propose a coordinated campaign involving observations, modeling, and laboratory analysis with a strong emphasis on providing the community with science-ready data products in the form of a fully-reduced spectral line survey. Our team brings together world-experts in each sub-field, and is committed to delivering on this promise.
Investigators
| Name | Institution |
|---|---|
| GBT Operator | Green Bank Observatory |
| Brett McGuire * | National Radio Astronomy Observatory; Massachusetts Institute of Technology |
| Andrew Burkhardt | Center for Astrophysics | Harvard & Smithsonian; Wellesley College; Worcester State University |
| Ryan Loomis | National Radio Astronomy Observatory |
| Tony Remijan | National Radio Astronomy Observatory |
| CI XUE | Massachusetts Institute of Technology |
| Kin Long Kelvin Lee | Massachusetts Institute of Technology; Center for Astrophysics | Harvard & Smithsonian |
| Mark Siebert | Cornell University; Virginia, University of; Chalmers University Of Technology |
| Christopher Shingledecker | Benedictine College |
| S. V. Kalensky | Lebedev Physical Institute |
| Michael McCarthy | Center for Astrophysics | Harvard & Smithsonian |
| Eric Herbst | Virginia, University of |
| Steve Charnley | Goddard Space Flight Center |
| Eric Willis | Virginia, University of |
| Martin Cordiner | National Aeronautics and Space Administration |
* indicates the PI