Image of a MACHO

This image is based on three exposures from the WFPC2 camera at the NASA/ESA Hubble Space Telescope, obtained in the V-, R- and I-bands (shown as blue, green and red, respectively). It shows the first image of a Dark Matter object — a MACHO (a massive compact object). It is the red object that is indicated with an arrow and very near to the upper left (at 2 o''clock) of a blue background star. This MACHO is a nearby red dwarf star that gravitationally focused light from the blue background star in another galaxy in a so-called microlensing event. Since the event six years ago, the MACHO has moved 0.134 arcseconds on the sky and can now be clearly separated in the Hubble image.

Źródło:

ESO

O zdjęciu

Identyfikator:eso0140a
Typ:Obserwacje
Data publikacji:5 grudnia 2001
Powiązane komunikaty:eso0140
Rozmiar:793 x 637 px

O obiekcie

Nazwa:MACHO
Typ:Milky Way : Cosmology : Phenomenon : Dark Matter
Milky Way : Cosmology : Phenomenon : Lensing
Kategoria:Cosmology

Formaty zdjęć

Pełen rozmiar
124,2 KB
Wielki JPEG
37,7 KB

Tapety

1024x768
42,0 KB
1280x1024
58,3 KB
1600x1200
70,1 KB
1920x1200
79,1 KB
2048x1536
96,5 KB

Kolory i filtry

PasmoTeleskop
Optyczny
B
Hubble Space Telescope
WFPC2
Optyczny
V
Hubble Space Telescope
WFPC2
Podczerwony
I
Hubble Space Telescope
WFPC2