Gravitational Lens 5921+0638

Esahubble_heic0806f_1024

esahubble_heic0806f February 19th, 2008

Credit: NASA, ESA, C. Faure (Zentrum für Astronomie, University of Heidelberg) and J.P. Kneib (Laboratoire d'Astrophysique de Marseille)

An Einstein ring can be seen in this image of the gravitational lens 5921+0638 from the COSMOS survey. An Einstein ring is a complete circle image of a background galaxy, which is formed when the background galaxy, a massive, foreground galaxy, and the Hubble Space Telescope are all aligned perfectly. Here, also a quadruple lens can be seen. This is one example of the rich diversity of 67 strong gravitational lenses found in the COSMOS survey. The lenses were discovered in a recently completed, large set of observations as part of a project to survey a single 1.6-square-degree field of sky (nine times the area of the full Moon) with several space-based and Earth-based observatories. Gravitational lenses occur when light travelling towards us from a distant galaxy is magnified and distorted as it encounters a massive object between the galaxy and us. These gravitational lenses often allow astronomers to peer much further back into the early Universe than they would normally be able to. This is a greyscale image taken by Hubble ACS camera and colourised with ground-based data from the CFHT (Canada-France-Hawaii Telescope).

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/heic0806f/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
COSMOS FIELD
Subject - Distant Universe
Galaxy > Type > Gravitationally Lensed
Galaxy > Grouping > Cluster
Esahubble_heic0806f_128
 

Position Details

Position (ICRS)
RA = 9h 59m 21.8s
DEC = 2° 6’ 38.3”
Orientation
North is up
Field of View
0.2 x 0.2 arcminutes
Constellation
Sextans

Color Mapping

  Telescope Spectral Band Wavelength
Grayscale Hubble (ACS) Infrared (I) 814.0 nm
Information gathered by the Subaru telescope and CFHT were used to colour this ACS image.
Spectrum_base
Grayscale
Esahubble_heic0806f_1280
×
ID
heic0806f
Subject Category
D.5.1.8   D.5.5.3  
Subject Name
COSMOS FIELD
Credits
NASA, ESA, C. Faure (Zentrum für Astronomie, University of Heidelberg) and J.P. Kneib (Laboratoire d'Astrophysique de Marseille)
Release Date
2008-02-19T15:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/heic0806f/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope
Instrument
ACS
Color Assignment
Grayscale
Band
Infrared
Bandpass
I
Central Wavelength
814
Start Time
Integration Time
Dataset ID
Notes
I
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
149.840732122, 2.11063186728
Reference Dimension
599.0, 600.0
Reference Pixel
299.5, 300.0
Scale
-6.93740986621e-06, 6.93740986621e-06
Rotation
-0
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.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
ESA/Hubble
Publisher ID
esahubble
Resource ID
heic0806f
Metadata Date
2008-02-18T12:11:08+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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