Revisiting the quasar without a home

Eso_eso0946b_1024

eso_eso0946b November 30th, 2009

Credit: ESO

Colour composite image of a peculiar object, the nearby quasar HE0450-2958, which is the only one for which no sign of a host galaxy has yet been detected. A team of astronomers has identified black hole jets as a possible driver of galaxy formation, which may also represent the long-sought missing link to understanding why the mass of black holes is larger in galaxies that contain more stars. The mid-infrared part of this image was obtained with the VISIR instrument on ESO’s Very Large Telescope, while the visible image comes courtesy of the Hubble Space Telescope and the Advanced Camera for Surveys.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0946b/

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
HE0450-2958
Subject - Local Universe
Galaxy > Activity > AGN > Quasar
Eso_eso0946b_128
 

Position Details Position Details

Position (ICRS)
RA = 4h 52m 30.1s
DEC = -29° 53’ 35.6”
Orientation
North is 1.8° CW
Field of View
0.1 x 0.1 arcminutes
Constellation
Caelum

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Orange Hubble (ACS) Optical (V) -
Blue VLT (VISIR) Infrared (Mid-IR) -
Eso_eso0946b_1280
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ID
eso0946b
Subject Category
C.5.3.2.1  
Subject Name
HE0450-2958
Credits
ESO
Release Date
2009-11-30T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0946b/
Type
Observation
Image Quality
Distance Notes
Redshift distance from: http://arxiv.org/abs/0906.0365
Facility
Hubble Space Telescope, Very Large Telescope
Instrument
ACS, VISIR
Color Assignment
Orange, Blue
Band
Optical, Infrared
Bandpass
V, Mid-IR
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
73.1254374981, -29.8932138888
Reference Dimension
331.0, 331.0
Reference Pixel
170.577726001, 161.219412866
Scale
-5.08117e-06, 5.08117e-06
Rotation
-1.80437131939
Coordinate System Projection:
TAN
Quality
Full
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
eso0946b
Resource URL
https://www.eso.org/public/archives/images/original/eso0946b.tif
Related Resources
Metadata Date
2024-02-22T14:23:03.975801
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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