"Hot spots" near radio galaxy 3C 455

Eso_eso0231a_1024

eso_eso0231a November 25th, 2002

Credit: ESO

The particle jets from the radio galaxy 3C445, as observed with the NRAO Very Large Array (VLA) radio facility ("a"; left) and with the ESO Very Large Telescope (VLT) optical/IR facility ("b" and "c"; right). Two plasma jets of fast particles emanate from the galaxy (weakly visible at the centre of the radio image "a"). The radio emission depicted here is synchrotron emission caused by high-speed electrons that move in the magnetic field carried along with the plasma. The southern jet rams into the intergalactic medium, thereby producing a "shock" with particularly strong synchrotron emission (the radio intensity contours in image "b"). These radio contours have been superposed on a near-infrared J-band (wavelength 1.25 µm) image obtained with the ISAAC multimode instrument on the 8.2-m VLT ANTU telescope at Paranal. Three separate emitting areas are visible on this photo and even better on a FORS1 I-band (0.9 µm) image above ("c"). The central area (with the strongest emission) indicates where the jet from the galaxy hits the intergalactic medium; the two others represent synchrotron emission from electrons accelerated in secondary processes at these sites. The scales are indicated by the 5-arcmin ("a") and 4 arcsec ("b" and "c") bars. North is up and East is left.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0231a/

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
3C 455
Subject - Distant Universe
Galaxy > Activity > AGN > Seyfert

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor VLT (ISAAC) Infrared (J) 1.3 µm
Spectrum_base
Pseudocolor
Eso_eso0231a_1280
×
ID
eso0231a
Subject Category
D.5.3.2.2  
Subject Name
3C 455
Credits
ESO
Release Date
2002-11-25T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0231a/
Type
Observation
Image Quality
Distance Notes
Redshift distance from NED
Facility
Very Large Telescope
Instrument
ISAAC
Color Assignment
Pseudocolor
Band
Infrared
Bandpass
J
Central Wavelength
1250
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
800.0, 895.0
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
eso0231a
Metadata Date
2010-02-26T14:13:13+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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