Dusty Elliptical Galaxy Centaurus A

Spitzer_ssc2004-09a1_1024

spitzer_ssc2004-09a1 June 1st, 2004

Credit: NASA/JPL-Caltech/J. Keene (SSC/Caltech)

This image taken by NASA's Spitzer Space Telescope shows in unprecedented detail the galaxy Centaurus A's last big meal: a spiral galaxy seemingly twisted into a parallelogram-shaped structure of dust. Spitzer's ability to see dust and also see through it allowed the telescope to peer into the center of Centaurus A and capture this galactic remnant as never before.

An elliptical galaxy located 10 million light-years from Earth, Centaurus A is one of the brightest sources of radio waves in the sky. These radio waves indicate the presence of a supermassive black hole, which may be "feeding" off the leftover galactic meal.

A high-speed jet of gas can be seen shooting above the plane of the galaxy (the faint, fuzzy feature pointing from the center toward the upper left). Jets are a common feature of galaxies, and this one is probably receiving an extra boost from the galactic remnant.

Scientists have created a model that explains how such a strangely geometric structure could arise. In this model, a spiral galaxy falls into an elliptical galaxy, becoming warped and twisted in the process. The folds in the warped disc create the parallelogram-shaped illusion.

Provider: Spitzer Space Telescope

Image Source: http://www.spitzer.caltech.edu/images/1192-ssc2004-09a1-Dusty-Elliptical-Galaxy-Centaurus-A

Curator: Spitzer Space Telescope, Pasadena, CA, USA

Image Use Policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy

Image Details Image Details

Image Type
Observation
Object Name
Centaurus A NGC 5128
Subject - Local Universe
Galaxy > Type > Elliptical
Galaxy > Type > Interacting

Distance Details Distance

Universescale2
11,000,000 light years
Spitzer_ssc2004-09a1_128
 

Position Details Position Details

Position (ICRS)
RA = 13h 25m 26.7s
DEC = -43° 1’ 6.7”
Orientation
North is 361.1° CCW
Field of View
23.4 x 17.6 arcminutes
Constellation
Centaurus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Spitzer (IRAC) Infrared (Near-IR) 3.6 µm
Green Spitzer (IRAC) Infrared (Near-IR) 4.5 µm
Red Spitzer (IRAC) Infrared (Mid-IR) 5.8 µm
Red Spitzer (IRAC) Infrared (Mid-IR) 8.0 µm
The contribution from starlight has been subtracted from the 5.8 and 8.0 micron channels to enhance the visibility of dust features.
Spectrum_base
Blue
Green
Red
Red
Spitzer_ssc2004-09a1_1280
×
ID
ssc2004-09a1
Subject Category
C.5.1.4.   C.5.1.7.  
Subject Name
Centaurus A, NGC 5128
Credits
NASA/JPL-Caltech/J. Keene (SSC/Caltech)
Release Date
2004-06-01
Lightyears
11,000,000
Redshift
0.001825
Reference Url
http://www.spitzer.caltech.edu/images/1192-ssc2004-09a1-Dusty-Elliptical-Galaxy-Centaurus-A
Type
Observation
Image Quality
Good
Distance Notes
Distance taken from Fast Facts and NED
Facility
Spitzer, Spitzer, Spitzer, Spitzer
Instrument
IRAC, IRAC, IRAC, IRAC
Color Assignment
Blue, Green, Red, Red
Band
Infrared, Infrared, Infrared, Infrared
Bandpass
Near-IR, Near-IR, Mid-IR, Mid-IR
Central Wavelength
3600, 4500, 5800, 8000
Start Time
Integration Time
Dataset ID
Notes
T
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
201.36134800478658, -43.018531979602542
Reference Dimension
1627, 1227
Reference Pixel
813.5, 613.5
Scale
-0.00023963630211714662, 0.00023963630211714662
Rotation
361.05197941681342
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
Spitzer Space Telescope
URL
http://www.spitzer.caltech.edu
Name
Spitzer Space Telescope
Email
Telephone
Address
1200 E. California Blvd.
City
Pasadena
State/Province
CA
Postal Code
91125
Country
USA
Rights
http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
Publisher
Spitzer Science Center
Publisher ID
spitzer
Resource ID
ssc2004-09a1.tif
Metadata Date
2012-10-11
Metadata Version
1.1
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Detailed color mapping information coming soon...

×
Universescalefull
11,000,000 light years

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