Contorting Giants

Esahubble_potw2045a_1024

esahubble_potw2045a November 9th, 2020

Credit: ESA/Hubble & NASA, S. Allam et al.

This NASA/ESA Hubble Space Telescope image features the galaxy LRG-3-817, also known as SDSS J090122.37+181432.3. The galaxy, its image distorted by the effects of gravitational lensing, appears as a long arc to the left of the central galaxy cluster. Gravitational lensing occurs when a large distribution of matter, such as a galaxy cluster, sits between Earth and a distant light source. As space is warped by massive objects, the light from the distant object bends as it travels to us and we see a distorted image of it. This effect was first predicted by Einsteins general theory of relativity. Strong gravitational lenses provide an opportunity for studying properties of distant galaxies, since Hubble can resolve details within the multiple arcs that are one of the main results of gravitational lensing. An important consequence of lensing distortion is magnification, allowing us to observe objects that would otherwise be too far away and too faint to be seen. Hubble makes use of this magnification effect to study objects beyond the sensitivity of its 2.4-metre-diameter primary mirror, showing us the most distant galaxies humanity has ever encountered. This lensed galaxy was found as part of the Sloan Bright Arcs Survey, which discovered some of the brightest gravitationally lensed high-redshift galaxies in the night sky.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw2045a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
SDSS J090122.37+181432.3
Subject - Distant Universe
Galaxy > Type > Gravitationally Lensed
Galaxy > Grouping > Cluster
Esahubble_potw2045a_128
 

Position Details

Position (ICRS)
RA = 9h 1m 22.3s
DEC = 18° 14’ 32.7”
Orientation
North is 25.7° CCW
Field of View
2.0 x 1.1 arcminutes
Constellation
Cancer

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC3) Infrared (H) 1.6 µm
Red Hubble (WFC3) Infrared (YJ) 1.1 µm
Orange Hubble (WFC3) Optical (I) 814.0 nm
Cyan Hubble (WFC3) Optical (V) 606.0 nm
Blue Hubble (WFC3) Optical (g) 475.0 nm
Spectrum_base
Red
Red
Orange
Cyan
Blue
Esahubble_potw2045a_1280
×
ID
potw2045a
Subject Category
D.5.1.8   D.5.5.3  
Subject Name
SDSS J090122.37+181432.3
Credits
ESA/Hubble & NASA, S. Allam et al.
Release Date
2020-11-09T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw2045a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3, WFC3
Color Assignment
Red, Red, Orange, Cyan, Blue
Band
Infrared, Infrared, Optical, Optical, Optical
Bandpass
H, YJ, I, V, g
Central Wavelength
1600, 1100, 814, 606, 475
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
135.342728383, 18.2424191354
Reference Dimension
3067.0, 1726.0
Reference Pixel
1533.5, 863.0
Scale
-1.10068460141e-05, 1.10068460141e-05
Rotation
25.740000000000073
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
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2045a
Metadata Date
2020-08-11T13:51:31+02:00
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

×

There is no distance meta data in this image.