Spectral regime Wavelength Frequency




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Wavelength Summary Table


Spectral regime

Wavelength

Frequency

Temperature

Types of objects

Gamma Ray












X-ray












Ultraviolet (UV)












Visible












Near-Infrared (NIR)












Mid-infrared (MIR)












Far-infrared (FIR)












Sub-mm and millimetre












Microwave












Radio











For the objects below, write down the numbers of the corresponding images at other wavelengths.


Crab


X-ray Ultraviolet


Far-Infrared Radio
Centaurus A


X-ray Mid-Infrared


Far-Infrared Radio
Antennae


X-ray Mid-Infrared


Far-Infrared Radio
Cassiopeia A


X-ray Mid-Infrared


Far-Infrared Radio
Large Magellanic Cloud


X-ray Ultraviolet


Far-Infrared Radio
Triangulum


X-ray Ultraviolet


Mid-Infrared Radio
Orion


X-ray Near-Infrared


Mid-Infrared Far-IR
M81


X-ray Ultraviolet


Far-Infrared Radio
M87


X-ray Mid-Infrared


Far-Infrared Radio
Sombrero
X-ray Near-Infrared
Mid-Infrared Radio
M82


X-ray Mid-Infrared


Far-Infrared Radio
Andromeda


X-ray Ultraviolet


Far-Infrared Radio

Links to Objects
Below are links to the various objects. The codes in brackets are the name you may find it under.
Links are given for finding the object in Chromoscope, as well as a few other links to more details.
Using Chromosope:


  • Click the link to open Chromoscope with the object centred.

  • Use the “+” and “-” keys (or buttons on the screen) to zoom in and out, and drag the sky around to explore the region.

  • Turn on and off constellation labels buy pressing “L”

  • Use the slider in the top right to fade between wavelengths shown.

  • You can re-order the wavelengths by dragging their names in order to easily compare different wavelengths.

  • For more help, press the “h” key.



Crab (M1)
Chromoscope: http://www.chromoscope.net/?l=-175.4429&b=-5.7847&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Crab_Nebula

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m1.html

Chandra: http://chandra.harvard.edu/photo/1999/0052/

Spitzer: http://www.spitzer.caltech.edu/Media/mediaimages/sig/sig05-004.shtml

Herschel: http://herschel.cf.ac.uk/results/crab-nebula
Centaurus A (NGC 5128)
Chromoscope: http://www.chromoscope.net/?l=-50.4844&b=19.4172&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Centaurus_A

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/cenA.html

Chandra: http://chandra.harvard.edu/photo/2008/cena/

Herschel: http://herschel.cf.ac.uk/results/centaurus
Antennae (NGC 4038)
Chromoscope: http://www.chromoscope.net/?l=-73.0444&b=42.4614&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Antennae_Galaxies

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/ant.html

Chandra: http://chandra.harvard.edu/photo/2000/0120/

Spitzer: http://spitzer.caltech.edu/images/1266-ssc2004-14a%20-Fire-Within-the-Antennae-Galaxies
Cassiopeia A (Cas A)
Chromoscope: http://www.chromoscope.net/?l=111.7353&b=-2.1299&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Cassiopeia_A

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/casA.html

Chandra: http://chandra.harvard.edu/photo/2006/casa/

Spitzer: http://www.spitzer.caltech.edu/Media/releases/ssc2005-14/release.shtml
Large Magellanic Cloud (LMC)
Chromoscope: http://www.chromoscope.net/?l=-79.5344&b=-32.8887&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Large_Magellanic_Cloud

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/lmc.html

Herschel: http://herschel.cf.ac.uk/results/centaurus
Triangulum (M33)
Chromoscope: http://www.chromoscope.net/?l=133.6106&b=-31.3308&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Triangulum_Galaxy

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m33.html

Spitzer: http://spitzer.caltech.edu/images/2625-sig09-003-Multispectral-Triangulum-Galaxy-3-Channel
Orion (M42)
Chromoscope: http://www.chromoscope.net/?l=-150.9866&b=-19.3813&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Orion_Nebula

Chandra: http://chandra.harvard.edu/photo/2007/orion/

Spitzer:

http://www.spitzer.caltech.edu/Media/releases/ssc2006-21/ssc2006-21a.shtml

Vista: http://www.eso.org/public/news/eso1006/
M81
Chromoscope: http://www.chromoscope.net/?l=142.0920&b=40.8999&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Messier_81

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m81.html

Chandra: http://chandra.harvard.edu/photo/2008/m81/

Spitzer: http://spitzer.caltech.edu/images/2126-sig07-009-Multiwavelength-M81
M87
Chromoscope: http://www.chromoscope.net/?l=-76.2224&b=71.4990&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Messier_87

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m87.html

Chandra: http://chandra.harvard.edu/photo/2008/m87/
Sombrero (M104)
Chromoscope: http://www.chromoscope.net/?l=-61.5396&b=51.1494&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Sombrero_Galaxy

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m104.html

Chandra: http://chandra.harvard.edu/photo/2007/sombrero/

Spitzer: http://www.spitzer.caltech.edu/Media/releases/ssc2005-11/release.shtml
M82
Chromoscope: http://www.chromoscope.net/?l=141.4094&b=40.5667&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Messier_82

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m82.html

Chandra: http://chandra.harvard.edu/photo/2006/m82/
Andromeda (M31)
Chromoscope: http://www.chromoscope.net/?l=121.1741&b=-21.5727&w=2.00&o=g,x,v,a,f,m,r&z=6

Wikipedia: http://en.wikipedia.org/wiki/Andromeda_Galaxy

Cool Cosmos: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/multiwavelength_astronomy/multiwavelength_museum/m31.html

Chandra: http://chandra.harvard.edu/photo/2006/m31/

Spitzer: http://www.spitzer.caltech.edu/Media/releases/ssc2005-20/release.shtml

Herschel: http://herschel.cf.ac.uk/results/andromeda-galaxy

Question Sheet

1) What object are you looking at? Describe what it looks like at first sight.


2) Describe where it is in the sky. Is it in the Northern or Southern hemisphere as seen from Earth? Are there any nearby constellations?

3) How far away is it? Is that inside or outside our Galaxy?

4) Describe what type of object it is. Can you find any other pictures of it?

5) Does it look particularly different in any particular wavelengths? Does that tell you anything about it?

6) What can you learn by comparing the appearance of the object at different wavelengths? What is it made of?



7) What is happening to the object? Is it doing anything?

Name: Date:


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