ALMA views a stellar explosion in Orion

Stellar explosions are most often associated with supernovae, the spectacular deaths of stars. But new ALMA observations of the Orion Nebula complex provide insights into explosions at the other end of the stellar life cycle, star birth. Astronomers captured these dramatic images of the remains of a 500-year-old explosion as they explored the firework-like debris from the birth of a group of massive stars, demonstrating that star formation can be a violent and explosive process too.

The colours in the ALMA data represent the relative Doppler shifting of the millimetre-wavelength light emitted by carbon monoxide gas. The blue colour in the ALMA data represents gas approaching at the highest speeds; the red colour is from gas moving toward us more slowly.

The background image includes optical and near-infrared imaging from both the Gemini South and ESO Very Large Telescope. The famous Trapezium Cluster of hot young stars appears towards the bottom of this image. The ALMA data do not cover the full image shown here.

Oikeudet:

ALMA (ESO/NAOJ/NRAO), J. Bally/H. Drass et al.

Kuvasta

Tunnistus:eso1711a
Tyyppi:Havainto
Julkaisupäivä:7. huhtikuuta 2017 15:00
Vastaavat julkaisut:eso1711
Koko:2707 x 2824 px

Kohteesta

Nimi:OMC, Orion Molecular Cloud
Tyyppi:Milky Way : Star : Grouping : Cluster : Open
Etäisyys:1400 valovuotta
Constellation:Orion
Kategoria:Nebulae
Star Clusters

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Koordinaatit

Position (RA):5 35 14.08
Position (Dec):-5° 22' 2.33"
Field of view:4.02 x 4.20 arcminutes
Suuntaus:Pohjoinen on 0.1° oikea pystysuuntaan nähden

Värit ja suotimet

KaistaAallonpituusTeleskooppi
Infrapuna
Fe II
1.64 μmGemini Observatory
GSAOI
Infrapuna
J
1.25 μmVery Large Telescope
ISAAC
Infrapuna
H
1.65 μmVery Large Telescope
ISAAC
Infrapuna
H2
2.12 μmGemini Observatory
GSAOI
Infrapuna
Ks
2.2 μmVery Large Telescope
ISAAC
Millimetri
216-233 GHz
1.3 mmAtacama Large Millimeter/submillimeter Array
Band 6

 

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