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.

Mynd/Myndskeið:

ESO

Um myndina

Auðkenni:eso1034b
Tegund:Athuganir
Útgáfudagur:Ágú 18, 2010, 12:00 CEST
Tengdar fréttatilkynningar:eso1034
Stærð:1261 x 1261 px

Um fyrirbærið

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

Myndasnið

Stór JPEG
424,6 KB

Þysjanleg


Bakgrunnsmynd

1024x768
233,1 KB
1280x1024
342,5 KB
1600x1200
477,4 KB
1920x1200
559,0 KB
2048x1536
734,0 KB

Hnit

Position (RA):16 47 4.02
Position (Dec):-45° 51' 5.46"
Field of view:5.00 x 5.00 arcminutes
Stefna:Norður er 0.1° højre frá lóðréttu

Litir og síur

TíðnisviðSjónauki
Sýnilegt
B
MPG/ESO 2.2-metre telescope
WFI
Sýnilegt
V
MPG/ESO 2.2-metre telescope
WFI
Sýnilegt
R
MPG/ESO 2.2-metre telescope
WFI

 

Sjá einnig