The first MACHO spectrum

Eso_eso0140b_1024

eso_eso0140b December 5th, 2001

Credit: ESO

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.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0140b/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
Hubble Space Telescope • MACHO • Spectrum • Very Large Telescope
Subject - Milky Way
Cosmology > Phenomenon > Lensing
Cosmology > Phenomenon > Dark Matter

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Grayscale VLT (FORS2) Infrared (I) 800.0 nm
Spectrum_base
Grayscale
Eso_eso0140b_1280
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ID
eso0140b
Subject Category
B.6.2.1   D.6.2.3  
Subject Name
Hubble Space Telescope, MACHO, Spectrum, Very Large Telescope
Credits
ESO
Release Date
2001-12-05T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0140b/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope
Instrument
FORS2
Color Assignment
Grayscale
Band
Infrared
Bandpass
I
Central Wavelength
800
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
1003.0, 682.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso0140b
Resource URL
https://www.eso.org/public/archives/images/original/eso0140b.tif
Related Resources
Metadata Date
2010-02-26T12:55:17+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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