ALMA and SPHERE view of GW Orionis (side-by-side)

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. The ALMA image (left) shows the disc’s ringed structure, with the innermost ring separated from the rest of the disc. The SPHERE observations (right) 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.

Oikeudet:

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

Kuvasta

Tunnistus:eso2014b
Tyyppi:Kokoelma
Julkaisupäivä:3. syyskuuta 2020 20:00
Vastaavat julkaisut:eso2014
Koko:1576 x 795 px

Kohteesta

Nimi:GW Orionis
Tyyppi:Milky Way : Star : Grouping : Triple
Milky Way : Star : Circumstellar Material : Disk : Protoplanetary
Kategoria:Stars

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Värit ja suotimet

KaistaAallonpituusTeleskooppi
Infrapuna
H
1.625 μmVery Large Telescope
SPHERE
Millimetri
12CO(J = 2 → 1)
1.3 mmAtacama Large Millimeter/submillimeter Array
Band 6

 

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