Spectrum of the extremely distant galaxy z6VDF J022803-041618

Eso_eso0314c_1024

eso_eso0314c May 28th, 2003

Credit: ESO

A spectroscopic image (between the horizontal arrows) of the very distant galaxy z6VDF J022803-041618, obtained with the multi-mode FORS2 instrument at the 8.2-m VLT YEPUN telescope at the ESO Paranal Observatory. The horizontal axis shows the dispersed light, with wavelengths increasing from left to right. In this spectral image, the bright emission lines from OH molecules in the terrestrial atmosphere have been subtracted, but they still leave residual "imprints", visible as strong and "noisy" vertical bars. The "window" at wavelength 920 nm is clearly visible on the right side of the image; in this region, there is much less "noise" from the OH-lines. The dark spot at the bottom left of the image is the Lyman-alpha line of the object. The adjacent "continuum" emission from the object, although very faint, is clearly visible on the long-wavelength side (to the right) of the Lyman-alpha line. There is no such continuum emission detected on the short-wavelength side (to the left) of the Lyman alpha line. Together with the observed asymmetry of the line, this is a clear spectral fingerprint of the red-shifted Lyman-alpha emission line from a distant galaxy.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0314c/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

View Options

Image Details

Image Type
Observation
Object Name
z6VDF J022803-041618
Subject - Distant Universe
Galaxy

Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor VLT (FORS2) Infrared -
Eso_eso0314c_1280
×
ID
eso0314c
Subject Category
D.5  
Subject Name
z6VDF J022803-041618
Credits
ESO
Release Date
2003-05-28T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0314c/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope
Instrument
FORS2
Color Assignment
Pseudocolor
Band
Infrared
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
1915.0, 468.0
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
eso0314c
Metadata Date
2016-07-18T13:49:43+02:00
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

×

There is no distance meta data in this image.

 

Providers | Sign In