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.

Të drejtat:

ESO

Rreth fotografisë

Id:eso1415b
Tipi:Ngjitje
Data e Publikimit:Maj 14, 2014, 12:00 CEST
Publikime të ngjashme:eso1415
Përmasat:1261 x 1261 px

Rreth objektit

Emri:Westerlund 1
Tipi:Milky Way : Star : Grouping : Cluster
Distanca:15000 vite dritë
Constellation:Ara
Kategori:Star Clusters

Formate Fotografish

JPEG i madh
422,3 KB

Koordinatat

Position (RA):16 47 4.02
Position (Dec):-45° 51' 4.96"
Field of view:4.99 x 4.99 arcminutes
Orientimi:Veriu është 0.1° djathtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Optik
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Optik
R
651 nmMPG/ESO 2.2-metre telescope
WFI

 

Shih dhe