A quasar in different colours

Eso_eso0730b_1024

eso_eso0730b July 6th, 2007

Credit: ESO

GROND images of the quasar PKS 1251-407. GROND observes simultaneously through 7 different filters in the visible and near-infrared, providing 7 images of the same object. In this case, the quasar appears much fainter in the blue images (the so-called Lyman drop-out), an indication of the quasar's distance.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0730b/

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
PKS 1251-407
Subject - Distant Universe
Galaxy > Activity > AGN > Quasar

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red MPG-2.2m (GROND) Infrared -
Red MPG-2.2m (GROND) Optical -
Eso_eso0730b_1280
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ID
eso0730b
Subject Category
D.5.3.2.1  
Subject Name
PKS 1251-407
Credits
ESO
Release Date
2007-07-06T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0730b/
Type
Observation
Image Quality
Distance Notes
Redshift distance from NED
Facility
MPG/ESO 2.2-metre telescope, MPG/ESO 2.2-metre telescope
Instrument
GROND, GROND
Color Assignment
Red, Red
Band
Infrared, Optical
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
2781.0, 387.0
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
eso0730b
Resource URL
https://www.eso.org/public/archives/images/original/eso0730b.tif
Related Resources
Metadata Date
2009-01-20T13:19:46+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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