Proper Motions of Young Stellar Outflows in the Mid-infrared with Spitzer (IRAC). I. The NGC 1333 Region
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1.
National Autonomous University of Mexico
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2.
Infrared Processing and Analysis Center
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3.
California Institute of Technology
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4.
Yale University
Abstract
We use two 4.5 μm Spitzer (IRAC) maps of the NGC 1333 region taken over a ~7 yr interval to determine proper motions of its associated outflows. This is a first successful attempt at obtaining proper motions of stellars' outflow from Spitzer observations. For the outflow formed by the Herbig-Haro objects HH7, 8, and 10, we find proper motions of ~9-13 km s–1, which are consistent with previously determined optical proper motions of these objects. We determine proper motions for a total of eight outflows, ranging from ~10 to 100 km s–1. The derived proper motions show that out of these eight outflows, three have tangential velocities ≤20 km s–1. This result shows that a large fraction of the observed outflows have low intrinsic velocities and that the low proper motions are not merely a projection effect.
Additional Information
© 2013 American Astronomical Society. Received 2012 August 13; accepted 2012 November 7; published 2012 December 13. This research is based in part on observations made with the Spitzer Space Telescope (NASA contract 1407) and has made use of the NASA/IPAC Infrared Science Archive, both of which are operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (NASA). A.R. acknowledges support from the CONACyT grants 60526, 61547, 101356, and 101975. We thank Luisa Rebull and John Stauffer for useful conversations about their program. We also thank an anonymous referee for many corrections of the first version of this paper.Attached Files
Published - 1538-3881_145_2_28.pdf
Submitted - 1211.0273v1.pdf
Files
1211.0273v1.pdf
Additional details
Identifiers
- Eprint ID
- 37095
- Resolver ID
- CaltechAUTHORS:20130222-155214671
Related works
- Describes
- http://arxiv.org/abs/1211.0273 (URL)
Funding
- NASA
- 1407
- Consejo Nacional de Ciencia y Tecnología (CONACyT)
- 60526
- Consejo Nacional de Ciencia y Tecnología (CONACyT)
- 61547
- Consejo Nacional de Ciencia y Tecnología (CONACyT)
- 101356
- Consejo Nacional de Ciencia y Tecnología (CONACyT)
- 101975
Dates
- Created
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2015-09-30Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)