The region around the massive star IRS2

Colour composite image of the central part of the stellar cluster RCW 38, around the young, massive star IRS2, taken with the NACO adaptive optics instrument attached to ESO's Very Large Telescope. Thanks to this image, astronomers were able to discover that IRS2 is in fact a twin system composed of two almost equally massive stars. The astronomers also found a handful of protostars – the faintly luminous precursors to fully realised stars – and dozens of other candidate stars that have eked out an existence here despite the powerful ultraviolet light radiated by IRS2.

The image is based on near-infrared data taken through three different filters (J, H and K). The field of view is about 1 arcminute across.

Źródło:

ESO

O zdjęciu

Identyfikator:eso0929a
Typ:Obserwacje
Data publikacji:19 sierpnia 2009
Powiązane komunikaty:eso0929
Powiązane ogłoszenia:ann15076
Rozmiar:947 x 934 px

O obiekcie

Nazwa:RCW 38
Typ:Milky Way : Star : Grouping : Cluster
Odległość:5500 lat świetlnych
Constellation:Vela
Kategoria:Star Clusters

Formaty zdjęć

Wielki JPEG
156,1 KB

Tapety

1024x768
135,8 KB
1280x1024
202,6 KB
1600x1200
274,8 KB
1920x1200
310,5 KB
2048x1536
408,4 KB

Współrzędne

Pozycja (RA):8 59 5.77
Pozycja (Dec):-47° 30' 37.56"
Pole widzenia:0.85 x 0.84 arcminutes
Orientacja:North is 0.0° prawo of vertical

Kolory i filtry

PasmoTeleskop
Podczerwony
J
Very Large Telescope
NACO
Podczerwony
H
Very Large Telescope
NACO
Podczerwony
K
Very Large Telescope
NACO