NOAO > Observing Info > Approved Programs > 2012B-0238
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NOAO > Observing Info > Approved Programs > 2012B-0238 |
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PI: Tracy Beck, Space Telescope Science Institute, tbeck@stsci.edu
Address: 3700 San Martin Drive, Baltimore, MD 21218, USA
CoI: Hiro Takami, ASIAA - Taiwan
CoI: Marc White, Australian National University
CoI: Mei-Yin Chou, ASIAA
CoI: Peter McGregor, Australian National University
CoI: Jennifer Karr, ASIAA
Title: Understanding the Jet Launching Mechanism in Young Star Outflows
Abstract:
Understanding the mechanisms of mass accretion and ejection is one of the
most important issues of star formation theories. Jets from young stars play
a fundamental role in removing excess angular momentum from a disk, allowing
mass accretion to occur. Therefore, understanding jets is important for
understanding not only star formation, but also initial/ongoing conditions
for planet formation in the inner regions of the disks. We propose for time
with Gemini+NIFS to reveal the jet launching process by simultaneously
studying the dynamic and evolving jet morphology as it relates to the recent
accretion history onto the central star. Over the the past two years, optical
spectral monitoring of several young stars has shown that we can well sample
the large scale time variation of magnetospheric accretion and the inner
jet/wind in very close proximity to the driving source. By combining these
proposed NIFS and continuing CHFT optical spectral observations, we will be
able to investigate time correlation between accretion onto the star and mass
ejection in the jet, their physical link, and hence the driving mechanism of
the jet.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2012B-0238 |
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