The star cluster Westerlund 1and the positions of the magnetar and its probable former companion star

This image of the young star cluster Westerlund 1 was taken with the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile. Although most stars in the cluster are hot blue supergiants, they appear reddish in this image as they are seen through interstellar dust and gas. European astronomers have for the first time demonstrated that the magnetar in this cluster — an unusual type of neutron star with an extremely strong magnetic field — probably was formed as part of a binary star system. The discovery of the magnetar’s former companion (Westerlund 1-5) elsewhere in the cluster helps solve the mystery of how a star that started off so massive could become a magnetar, rather than collapse into a black hole.

Mynd/Myndskeið:

ESO

Um myndina

Auðkenni:eso1415b
Tegund:Háskóli
Útgáfudagur:Maí 14, 2014, 12:00 CEST
Tengdar fréttatilkynningar:eso1415
Stærð:1261 x 1261 px

Um fyrirbærið

Nafn:Westerlund 1
Tegund:Milky Way : Star : Grouping : Cluster
Fjarlægð:15000 ljósár
Constellation:Ara
Flokkur:Star Clusters

Myndasnið

Stór JPEG
422,3 KB

Hnit

Position (RA):16 47 4.02
Position (Dec):-45° 51' 4.96"
Field of view:4.99 x 4.99 arcminutes
Stefna:Norður er 0.1° højre frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Sýnilegt
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Sýnilegt
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Sýnilegt
R
651 nmMPG/ESO 2.2-metre telescope
WFI

 

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