Delicate bubble of expelled material around the cool red star U Antliae

This ALMA image reveals much finer structure in the U Antliae shell than has previously been possible. Around 2700 years ago, U Antliae went through a short period of rapid mass loss. During this period of only a few hundred years, the material making up the shell seen in the new ALMA data was ejected at high speed. Examination of this shell in further detail also shows some evidence of thin, wispy clouds known as filamentary substructures.

Mynd/Myndskeið:

ALMA (ESO/NAOJ/NRAO)/F. Kerschbaum

Um myndina

Auðkenni:eso1730a
Tegund:Athuganir
Útgáfudagur:Sep 20, 2017, 12:00 CEST
Tengdar fréttatilkynningar:eso1730
Stærð:2000 x 2000 px

Um fyrirbærið

Nafn:U Antliae
Tegund:Milky Way : Star : Type : Variable
Constellation:Antlia
Flokkur:Stars

Myndasnið

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Hnit

Position (RA):10 35 12.87
Position (Dec):-39° 33' 44.99"
Field of view:2.18 x 2.18 arcminutes
Stefna:Norður er 0.5° højre frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Millímetri
230 GHz
1.3 mmAtacama Large Millimeter/submillimeter Array
Band 6

 

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