Астронет: Астрономическая картинка дня Джет от молодой звезды MHO 2147 http://variable-stars.ru/db/msg/1804556/eng |
Credit & Copyright: International Gemini Observatory /
NOIRLab /
NSF /
AURA
Acknowledgments: L. Ferrero (Universidad Nacional de CцЁrdoba)
Explanation:
Laser
guide stars and
adaptive optics sharpened this stunning
ground-based image of stellar jets from the
Gemini South Observatory,
Chilean Andes, planet Earth.
These
twin outflows of MHO 2147
are from a young star
in formation.
It lies toward the central Milky Way and the
boundary of the constellations Sagittarius and Ophiuchus at
an estimated distance of some 10,000 light-years.
At center, the star itself is obscured by a dense region of cold dust.
But the infrared image still traces the sinuous jets across a
frame that would span about 5 light-years at the system's estimated distance.
Driven outward
by the young rotating star,
the apparent wandering direction of the jets is likely due to precession.
Part of a multiple star system, the young star's rotational axis
would slowly precess or wobble like a top under the gravitation influence
of its nearby companions.
Acknowledgments: L. Ferrero (Universidad Nacional de CцЁrdoba)
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
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NASA Official: Jay Norris.
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rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.