First image and spectrum of a Dark Matter object [heic0116]

This NASA/ESA Hubble Space Telescope 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. This MACHO is a nearby red dwarf star that gravitationally focused light from a blue background star in another galaxy in a so-called microlensing event. Since the event six years ago, the MACHO has moved 0.134 arc-seconds on the sky and can now be clearly separated from the blue star in the Hubble image.

Credit:

About the Image

Id:heic0116a
Type:Observation
Release date:5 December 2001, 15:00
Related releases:heic0116
Size:2300 x 1862 px

About the Object

Name:Dark Matter object, MACHO
Type:• Milky Way : Cosmology : Phenomenon : Lensing
• Milky Way : Cosmology : Phenomenon : Dark Matter
• X - Cosmology Images/Videos

Colours & filters

BandTelescope
Optical
V
Hubble Space Telescope
WFPC2
Optical
R
Hubble Space Telescope
WFPC2
Infrared
I
Hubble Space Telescope
WFPC2

Image Formats

Large JPEG
124.4 KB
Screensize JPEG
43.2 KB

Print Layout

Screensize JPEG
66.0 KB

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