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Астронет: Астрономическая картинка дня BHR 71: звезды, облака и джеты http://variable-stars.ru/db/msg/1186191/eng |
Credit & Copyright: J. Alves
(ESO),
E. Tolstoy (Groningen),
R. Fosbury (ST-ECF), &
R. Hook (ST-ECF),
VLT
Explanation:
What is happening to
molecular cloud BHR 71?
Quite possible, a binary star
system is forming inside.
Most stars in
our Galaxy are part of
binary star systems,
but few have ever been seen in formation.
Recent observations of
dust-darkened
Bok Globule BHR 71, however,
show evidence for two young stars forming deep in the cloud,
likely close enough to form a binary.
Isolated BHR 71 spans about one
light year and lies only about 600 light years away
in the southern sky.
The brighter embedded star -- not visible here --
is about 10 times as bright as the
Sun
and drives the jet that
swept out the empty lane.
The above four-color image was taken with a
Very Large Telescope in
Chile.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.