The Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula
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Affiliation
Univ Arizona, Steward ObservIssue Date
2018-02-21Keywords
H II regionsISM: individual objects (Orion Nebula, HH 508, LV 1)
protoplanetary disks
stars: formation
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IOP PUBLISHING LTDCitation
The Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula 2018, 854 (2):144 The Astrophysical JournalJournal
The Astrophysical JournalRights
© 2018. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We present Magellan adaptive optics Ha imaging of HH 508, which has the highest surface brightness among protostellar jets in the Orion Nebula. We find that HH 508 actually has a shorter component to the west, and a longer and knotty component to the east. The east component has a kink at 0.'' 3 from the jet-driving star theta(1) Ori B-2, so it may have been deflected by the wind/radiation from the nearby theta(1) Ori B1B5. The origin of both components is unclear, but if each of them is a separate jet, then theta(1) Ori B-2 may be a tight binary. Alternatively, HH 508 may be a slow-moving outflow, and each component represents an illuminated cavity wall. The ionization front surrounding theta(1) Ori B2B3 does not directly face theta(1) Ori B1B5, suggesting that the EUV radiation from theta(1) Ori C plays a dominant role in affecting the morphology of proplyds even in the vicinity of theta(1) Ori B1B5. Finally, we report an Ha blob that might be ejected by the binary proplyd LV 1.ISSN
1538-4357Version
Final published versionSponsors
National Science Foundation [1506818]; NSF AAG [1615408]; NSF AAG; TRIF; NASA Exoplanets Research Program (XRP) [NNX16AD44G]Additional Links
http://stacks.iop.org/0004-637X/854/i=2/a=144?key=crossref.936f0a6c6b207541c5a9d90d935fafa9ae974a485f413a2113503eed53cd6c53
10.3847/1538-4357/aaa96b