ALMA and SPHERE view of GW Orionis (superimposed)

ALMA, in which ESO is a partner, and the SPHERE instrument on ESO’s Very Large Telescope have imaged GW Orionis, a triple star system with a peculiar inner region. Unlike the flat planet-forming discs we see around many stars, GW Orionis features a warped disc, deformed by the movements of the three stars at its centre. This composite image shows both the ALMA and SPHERE observations of the disc. 

The ALMA image shows the disc’s ringed structure, with the innermost ring (part of which is visible as an oblong dot at the very centre of the image) separated from the rest of the disc. The SPHERE observations allowed astronomers to see for the first time the shadow of this innermost ring on the rest of the disc, which made it possible for them to reconstruct its warped shape.

Mynd/Myndskeið:

ESO/Exeter/Kraus et al., ALMA (ESO/NAOJ/NRAO)

Um myndina

Auðkenni:eso2014c
Tegund:Athuganir
Útgáfudagur:Sep 3, 2020, 20:00 CEST
Tengdar fréttatilkynningar:eso2014
Stærð:754 x 754 px

Um fyrirbærið

Nafn:GW Orionis
Tegund:Milky Way : Star : Grouping : Triple
Milky Way : Star : Circumstellar Material : Disk : Protoplanetary
Constellation:Orion
Flokkur:Stars

Myndasnið

Stór JPEG
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Þysjanleg


Hnit

Position (RA):5 29 8.39
Position (Dec):11° 52' 12.65"
Field of view:0.05 x 0.05 arcminutes
Stefna:Norður er -0.0° vinstri frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Innrautt
H
1.625 μmVery Large Telescope
SPHERE
Millímetri
12CO(J = 2 → 1)
1.3 mmAtacama Large Millimeter/submillimeter Array
Band 6