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Астронет: Астрономическая картинка дня Необычная туманность Pa 30 http://www.variable-stars.ru/db/msg/1925048/eng |
Credit & Copyright: NASA,
ESA,
USAF,
NSF;
Processing:
G. Ferrand
(U. Manitoba),
J. English
(U.
Manitoba),
R. A. Fesen
(Dartmouth),
C. Treyturik (U. Manitoba);
Text: G. Ferrand & J. English
Explanation:
What created this unusual celestial firework?
The nebula, dubbed
Pa 30, appears in the same
sky direction now as a bright
"guest star" did in the
year 1181.
Although Pa 30's filaments look similar to that created by a nova
(for example GK Per),
and a planetary nebula (for example
NGC 6751), some astronomers
now propose that it was created by a rare type of
supernova:
a thermonuclear Type Iax, and so is (also) named
SN 1181.
In this model, the supernova was not the result of the
detonation of a single star, but rather a blast that occurred when two
white dwarf stars
spiraled together and merged.
The blue dot in the center is hypothesized to be a
zombie star, the remnant white dwarf that
somehow
survived this
supernova-level explosion.
The featured
image combines images and data obtained with
infrared
(WISE),
visible
(MDM,
Pan-STARRS),
and X-ray
(Chandra, XMM) telescopes.
Future observations and analyses may
tell us more.
NASA Coverage:
Total Solar Eclipse of 2024 April 8
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.