Wide Field Imager image of Westerlund 1 (annotated)

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. This remarkable cluster contains hundreds of very massive stars, some shining with a brilliance of almost one million suns. 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 — an unusual type of neutron star with an extremely strong magnetic field — that lies in the cluster was formed from a star with at least 40 times as much mass as the Sun. The result presents great challenges to current theories of how stars evolve, as a star as massive as this was expected to become a black hole, not a magnetar.

Telif:

ESO

Görüntü Hakkında

Kimlik:eso1034b
Tür:Gözlem
Yayın tarihi:18 Ağustos 2010 12:00
Bağlantılı bültenler:eso1034
Boyut:1261 x 1261 px

Nesne Hakkında

Adı:Westerlund 1
Tür:Milky Way : Star : Evolutionary Stage : Neutron Star : Magnetar
Milky Way : Star : Grouping : Cluster
Uzaklık:15000 ışık yılı
Constellation:Ara
Kategori:Star Clusters

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Koordinatlar

Position (RA):16 47 4.02
Position (Dec):-45° 51' 5.46"
Field of view:5.00 x 5.00 arcminutes
Yönelim:Kuzey yönü 0.1° sağ derece kadar dik konumdan sapma göstermektedir

 

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