Images of SCR 1845-6357 A and B in different filters (NACO-SDI/VLT)

Eso_eso0611d_1024

eso_eso0611d March 22nd, 2006

Credit: ESO

A movie of the SDI camera's images of the low mass star SCR 1845A and its companion, SCR 1845B. Note how the brown dwarf companion (B) is clearly changing in brightness in and out of the SDI methane filters. This proves that B is methane-rich and is thus a rare cool low-mass brown dwarf companion. Moreover, it is also clear that the "halo of speckles" around the much hotter primary star do not change significantly in the three SDI filters. Hence the star's halo can be removed by subtracting the different images, showing that the detection of a faint methane-rich companion (even 10 times closer than B) is made possible with the SDI camera.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0611d/

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
SCR 1845-6357
Subject - Milky Way
Star > Type > Brown Dwarf
Star > Grouping > Binary

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor VLT (NACO) Infrared (Near-IR) 1.6 µm
Spectrum_base
Pseudocolor
Eso_eso0611d_1280
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ID
eso0611d
Subject Category
B.3.2.3   B.3.6.1  
Subject Name
SCR 1845-6357
Credits
ESO
Release Date
2006-03-22T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0611d/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope
Instrument
NACO
Color Assignment
Pseudocolor
Band
Infrared
Bandpass
Near-IR
Central Wavelength
1575
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
327.0, 356.0
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
eso0611d
Resource URL
https://www.eso.org/public/archives/images/original/eso0611d.tif
Related Resources
Metadata Date
2010-02-18T11:38:43+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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