Spectroscopy

 

Part IV – Resources

 

Originated 2017 January 31

 

Contents

 

Spectroscopy, Part I – Using the SSON Transmission Grating Spectrograph

 

Spectroscopy, Part II – Generating a profile using Visual Spec

 

Spectroscopy, Part III – Analysing spectra using Visual Spec

 

Spectroscopy, Part V – The Miles catalogue of spectra

 

Examples of cometary spectra

The spectrum shown in Figure 1 is interesting in that it shows what can be done with relatively modest equipment. It was obtained by Rob Kaufman with a Canon 650D SLR on a Vixen Polarie with a Star Analyser grating attached to a 200mm lens. He comments ‘They show the SWAN-band emissions but also an underlying continuum of sunlight reflection from dust.  Unfortunately my camera sensor is not sensitive to the CN line in the violet’. The original can be seen at; http://i727.photobucket.com/albums/ww271/Rob_Kau/C2014Q2spectrum12Dec2014text.jpg~original Compare with the spectrum shown in Figure 2.

C2014Q2spectrum12Dec2014text

Figure 1. Swan bands in spectrum of comet C/2014 Q2 (Lovejoy). Credit Rob Kaufman

 

Swan bands, Figure 2, are a characteristic of the spectra of carbon stars, comets and of burning hydrocarbon fuels. They are named for the Scottish physicist William Swan who first studied the spectral analysis of radical carbon C2 in 1856. Swan bands consist of several sequences of vibrational bands scattered throughout the visible spectrum.

http://upload.wikimedia.org/wikipedia/en/thumb/b/b2/Spectrum_of_blue_flame.png/1024px-Spectrum_of_blue_flame.png

Figure 2. Spectrum of the blue flame from a butane torch showing excited molecular radical band emission and Swan bands. Credit Wikipedia/Deglr6328

 

 

http://www.eso.org/projects/caos/results/hale-bopp/phot-may15-ga4.gif

Figure 3. Comet Hyakutake, 1996 Mar 28 to 1996 Apr 16 -  http://www.eso.org/~cguirao/caos/

 

 

 http://astroforo.net/astro/rspec/Garradd/Comet-Garradd-02.jpg

Figure 4. Comet C/2009 P1 (Garradd)

 

A spectrum of comet C/2014 Q2 (Lovejoy) obtained by Eric Bryssinck can be viewed here.

 

Books

 

Astronomical Spectroscopy for Amateurs by Ken M. Harrison and published by Springer

 

Databases

 

BAA Spectroscopy Database - https://britastro.org/specdb/

 

Hardware

 

Paton Hawksley Education Ltd  - Star Analyser - http://www.patonhawksley.co.uk/staranalyser.html

            Forum - https://groups.yahoo.com/neo/groups/staranalyser/info

 

Shelyak Instruments - http://www.shelyak.com/

 

Observers and observatories

 

Christian Buil's - http://www.astrosurf.com/buil/

 

François Teyssier - http://www.astronomie-amateur.fr/

 

Iowa Robotic Observatory, Spectroscopy - http://astro.physics.uiowa.edu/~www/rigel/spectroscopy/

 

Richard Walker - http://www.ursusmajor.ch/astrospektroskopie/richard-walkers-page/

 

Robin Leadbetter -  http://www.threehillsobservatory.co.uk/astro/astro.htm

 

Organisations

 

Amateur Astronomy Association, Spectroscopy Section (Germany) - http://spektroskopie.fg-vds.de/index_e.htm

            Forum - http://forum.vdsastro.de/viewforum.php?f=38

2015

Astronomical Ring for Access to Spectroscopy (ARAS) - http://www.astrosurf.com/aras/

            Forum - http://www.spectro-aras.com/forum/

 

Astronomical Spectroscopy for Amateurs - http://astronomicalspectroscopy.com/

            Forum - https://groups.yahoo.com/neo/groups/astronomical_spectroscopy/info

 

Club of Aficionados in Optical Spectroscopy  (CAOS) - http://spectroscopy.wordpress.com/

 

Presentations

 

Amateur Spectroscopy of Comets (a presentation at the BAA Comet Section meeting held in Northampton on 2013 May), Robin Leadbeater

 

First steps in Spectroscopy, David Boyd - http://www.britastro.org/vss/First%20steps%20in%20Spectroscopy.pdf

 

Variable Star spectroscopy - Workshop Edinburgh October 2008, Robin Leadbetter

 

2015 October Spectroscopy meeting held at the Norman Lockyer Observatory

 

Software

 

Integrated Spectrographic Innovative Software (ISIS) - http://www.astrosurf.com/buil/isis/isis_en.htm

 

Rspec – Real Time Spectroscopy - http://www.rspec-astro.com/

            Forum - https://groups.yahoo.com/neo/groups/RSpec_Real_Time_Spectroscopy/info

 

Visual Spec - http://www.astrosurf.com/vdesnoux/

 

Contents