The First MACHO Spectrum

Composite spectrum of the two very close objects seen on the HST image (ESO Press Photo eso0140). It is based on four 1500-second exposures that were obtained with the FORS2 multi-mode instrument at the 8.2-m VLT KUEYEN telescope on February 2, 2001. The presence of certain metal and alkali resonance lines, in particular of sodium (Na), is typical of a cool stellar object. Telluric molecular bands (from the Earth's atmosphere) are indicated with an earth-symbol.

Credit:

ESO

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About the Image

Id:eso0140b
Type:Observation
Release date:5 December 2001
Related releases:eso0140
Size:1003 x 682 px

About the Object

Name:Hubble Space Telescope, MACHO, Spectrum, Very Large Telescope
Type:• Milky Way : Cosmology : Phenomenon : Lensing
• Early Universe : Cosmology : Phenomenon : Dark Matter
• X - Cosmology
• X - Illustrations

Image Formats

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Colours & filters

BandWavelengthTelescope
Infrared
I
800 nm Very Large Telescope
FORS2

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