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The CARMA-NRO Orion Survey: Statistical Signatures of Feedback in the Orion A Molecular Cloud
Indexado
WoS WOS:000466264400002
Scopus SCOPUS_ID:85067182551
DOI 10.3847/1538-4357/AB0E7D
Año 2019
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



We investigate the relationship between turbulence and feedback in the Orion A molecular cloud using maps of (CO)-C-12(1-0), (CO)-C-13(1-0), and (CO)-O-18(1-0) from the CARMA-NRO Orion survey. We compare gas statistics with the impact of feedback in different parts of the cloud to test whether feedback changes the structure and kinematics of molecular gas. We use principal component analysis, the spectral correlation function, and the spatial power spectrum to characterize the cloud. We quantify the impact of feedback with momentum injection rates of protostellar outflows and wind-blown shells as well as the surface density of young stars. We find no correlation between shells or outflows and any of the gas statistics. However, we find a significant anticorrelation between young star surface density and the slope of the (CO)-C-12 spectral correlation function, suggesting that feedback may influence this statistic. While calculating the principal components, we find peaks in the covariance matrix of our molecular line maps offset by 1-3 km s(-1) toward several regions of the cloud that may be produced by feedback. We compare these results to predictions from molecular cloud simulations.

Revista



Revista ISSN
Astrophysical Journal 0004-637X

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Disciplinas de Investigación



WOS
Astronomy & Astrophysics
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Feddersen, Jesse R. Hombre YALE UNIV - Estados Unidos
Yale University - Estados Unidos
2 Arce, Hector G. Hombre YALE UNIV - Estados Unidos
Yale University - Estados Unidos
3 Kong, Shuo - YALE UNIV - Estados Unidos
Yale University - Estados Unidos
4 Ossenkopf-Okada, Volker Hombre Univ Cologne - Alemania
University of Cologne - Alemania
Universität zu Köln - Alemania
5 Carpenter, John M. Hombre Atacama Large Millimeter Array - Chile
Atacama Large Millimeter-submillimeter Array - Chile

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Financiamiento



Fuente
National Science Foundation
University of Illinois at Urbana-Champaign
University of Chicago
California Institute of Technology
University of California-Berkeley
University of Maryland College Park
Directorate for Mathematical and Physical Sciences

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
We thank the anonymous referee for their comments. We thank Yoshihiro Tanabe for providing the outflow catalog. We thank Jens Kauffmann, Jaime Pineda, and the entire CARMA-NRO Orion collaboration for helpful discussion. CARMA operations were supported by the California Institute of Technology, the University of California-Berkeley, the University of Illinois at Urbana-Champaign, the University of Maryland College Park, and the University of Chicago. The Nobeyama 45 m telescope is operated by the Nobeyama Radio Observatory, a branch of the National Astronomical Observatory of Japan. This project was supported by the National Science Foundation, award AST-1140063.

Muestra la fuente de financiamiento declarada en la publicación.