Universität zu Köln

Weaver, Susanna L. Widicus, Laas, Jacob C., Zou, Luyao ORCID: 0000-0001-9374-5666, Kroll, Jay A., Rad, Mary L., Hays, Brian M., Sanders, James L., Lis, Dariusz C., Cross, Trevor N., Wehres, Nadine ORCID: 0000-0001-8881-2916, McGuire, Brett A. and Sumner, Matthew C. (2017). Deep, Broadband Spectral Line Surveys of Molecule-rich Interstellar Clouds. Astrophys. J. Suppl. Ser., 232 (1). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4365

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Abstract

Spectral line surveys are an indispensable tool for exploring the physical and chemical evolution of astrophysical environments due to the vast amount of data that can be obtained in a relatively short amount of time. We present deep, broadband spectral line surveys of 30 interstellar clouds using two broadband lambda = 1.3 mm receivers at the Caltech Submillimeter Observatory. This information can be used to probe the influence of physical environment on molecular complexity. We observed a wide variety of sources to examine the relative abundances of organic molecules as they relate to the physical properties of the source (i.e., temperature, density, dynamics, etc.). The spectra are highly sensitive, with noise levels <= 25 mK at a velocity resolution of similar to 0.35. km. s(-1). In the initial analysis presented here, column densities and rotational temperatures have been determined for the molecular species that contribute significantly to the spectral line density in this wavelength regime. We present these results and discuss their implications for complex molecule formation in the interstellar medium.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Weaver, Susanna L. Widicus UNSPECIFIED UNSPECIFIED UNSPECIFIED Laas, Jacob C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zou, Luyao UNSPECIFIED orcid.org/0000-0001-9374-5666 UNSPECIFIED Kroll, Jay A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rad, Mary L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hays, Brian M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanders, James L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lis, Dariusz C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cross, Trevor N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wehres, Nadine UNSPECIFIED orcid.org/0000-0001-8881-2916 UNSPECIFIED McGuire, Brett A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sumner, Matthew C. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-220428
DOI:	10.3847/1538-4365/aa8098
Journal or Publication Title:	Astrophys. J. Suppl. Ser.
Volume:	232
Number:	1
Date:	2017
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1538-4365
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STAR-FORMING REGIONS; LOW-MASS PROTOSTAR; SUBMILLIMETER ARRAY OBSERVATIONS; GRAIN-SURFACE-CHEMISTRY; CARBON-CHAIN-CHEMISTRY; YOUNG STELLAR OBJECT; ORION-KL; HOT-CORE; HIGH-RESOLUTION; ORGANIC-MOLECULES Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22042