The AAVSO and IYA 2009 Citizen Science Working Group Focus is Epsilon Aurigaes 2009-2010 eclipse STARS: Three year, 800K NSF grant submitted in June (still.

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Presentation transcript:

The AAVSO and IYA 2009 Citizen Science Working Group Focus is Epsilon Aurigaes eclipse STARS: Three year, 800K NSF grant submitted in June (still pending) & will be resubmitted in December Real research with real data Collect and share data Hypothesize Analyze Publish Collaborate in teams with professional mentors Web site based on GalaxyZoo experience Software tools, visualizations Two workshops: Data collection/prelim analysis & Advanced analysis/publication Special issue of the JAAVSO/omnibus paper by Dr. Robert Stencel Zero funding program: amateurs only For 20K we can do one workshop at the Adler w/travel grants

Epsilon Aurigae Bright enough (V=~3) for naked eye city observations Fall, winter and spring skies 1.5 year eclipse every 27 years followed since 1871 Amplitude=~.5 magnitudes and Eclipse is asymmetrical with steep decline, long minima and even steeper ascent (~2 weeks!) Aug 6, May 15, (left - AAVSO data from G. Samolyk) and (right - Ludendorff [1912])

Epsilon Aurigae Questions No signs of the eclipse in the spectra! Pulsating F supergiant (Jeff Hopkins reports a 66d period) Secondary is a disk, perhaps with a hole Center of secondary may be a binary system Combined mass of secondary and its star system equal the F supergiant Is the F star a massive supergiant or an early post-asymptotic giant branch star? What is at the center of the eclipsing disk? Why is the eclipse shortening? Why the asymmetry? Dr. Stencel thinks a third object may be spiralling into the main star, leading to mid-century fireworks Lots more... read the book!

1. Alpha Ori 2. Beta Per 3. Beta Lyr 4. Delta Cep 5. Eta Aql 6. EU Delphinius 7. Mu Cep 8. Omi Cet 9. Gamma Cas 10. Eps Aur Ten Star Training Program Basic training for complete novice observers Northern hemisphere naked eye stars Six printed charts and VSP Tutorial/manual - light version of the visual observing manual Will be tested in November/January with after school high school astronomy program (run by MIT) in urban areas of Boston Also for use in analysis training Great PEP targets

Sample paper chart: Gamma Cas Thanks to the following sequence team members who are creating the sequences, charts and checking them! Mike Simonsen Tim Crawford Dan Taylor Tom Bretl

Sample paper chart: Epsilon Aurigae!