The Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula
AffiliationUniv Arizona, Steward Observ
KeywordsH II regions
ISM: individual objects (Orion Nebula, HH 508, LV 1)
MetadataShow full item record
PublisherIOP PUBLISHING LTD
CitationThe Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula 2018, 854 (2):144 The Astrophysical Journal
JournalThe Astrophysical Journal
Rights© 2018. The American Astronomical Society. All rights reserved.
Collection InformationThis 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 email@example.com.
AbstractWe 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.
VersionFinal published version
SponsorsNational Science Foundation ; NSF AAG ; NSF AAG; TRIF; NASA Exoplanets Research Program (XRP) [NNX16AD44G]