GBT24B-077

A Quest for More GLUCOSE: the GBT L1544 Unbiased Complex Organics SurvEy

Abstract

The GBT L1544 Unbiased Complex Organics SurvEy, or GLUCOSE, is a large spectral line program that investigates numerous energetically favorable molecular transitions, especially those of complex organic molecules (or COMs), at high spectral and spatial resolution in a wide (10 GHz) bandwidth toward the dust peak of prestellar core L1544. This well-studied and actively collapsing cold (10K) core is our best probe for tracing the chemical history likely inherited to planetary systems. Already, as part of the GBT 22A special call, roughly 100 hours have been observed and new molecular line detections are giving us new insight into the formation of complex molecules. Still, only a fraction (2/14 windows) of the bandwidth has been completed. We propose a continuation of GLUCOSE and ask for 214 hours of Ka-band observations and 342 hours of Q-band observations over the next 3-4 semesters in order to complete the wide-band (36-46 GHz) line survey.

Investigators

Name	Institution
Samantha Scibelli *	National Radio Astronomy Observatory; Arizona, University of
GBT Operator	Green Bank Observatory
Paola Caselli	Max-Planck-Institut für extraterrestrische Physik; Leeds, University of
Silvia Spezzano	Max-Planck-Institut für extraterrestrische Physik
Anna Punanova	Chalmers University of Technology
Yancy Shirley	Arizona, University of
Beatrice Kulterer	Virginia, University of; Center for Astrophysics | Harvard & Smithsonian
Robin Garrod	Virginia, University of
Yvonne Pendleton	National Aeronautics and Space Administration
Anton Vasyunin	Max-Planck-Institut für extraterrestrische Physik; Ural Federal University
Danna Qasim	National Aeronautics and Space Administration
Giulia Perotti	Max-Planck-Institut für Astronomie
Laurie Chu	National Aeronautics and Space Administration
Thanja Lamberts	Leiden, University of
Katarina Yocum	National Aeronautics and Space Administration
Izaskun Jimenez-Serra	Centro de Astrobiología
Andres Megias	Centro de Astrobiología
Judit Ferrer Asensio	Max-Planck-Institut für extraterrestrische Physik
Brett McGuire	National Radio Astronomy Observatory; Massachusetts Institute of Technology

* indicates the PI