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Asteroid Research projects in the Age of Wide-field Surveys

Asteroid Research projects in the Age of Wide-field Surveys. Brian D. Warner Center for Solar System Studies / MoreData! Inc . http://planetarysciences.org NASA 80NSSC18K0851. Taking on the giants What’s needed Yarkovsky and YORP asteroid projects Publish your work.

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Asteroid Research projects in the Age of Wide-field Surveys

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  1. Asteroid Research projectsin the Age of Wide-field Surveys Brian D. WarnerCenter for Solar System Studies / MoreData! Inc. http://planetarysciences.org NASA 80NSSC18K0851

  2. Taking on the giants What’s needed Yarkovsky and YORP asteroid projects Publish your work Coming attractions

  3. Discovery is out follow-up is in: Time-sensitive astrometry to avoid losing an asteroid (V > 19) Astrometry and Photometry to help plan radar observations Physical characterization Taking on the giants

  4. Telescope and ccd (DSLR) camera Familiarity with: Taking images Image reduction (dark/flats) Lightcurve period analysis (Basic) publishing science papers You can do it! What’s Needed

  5. YORP (Yarkovsky-O’Keefe-Radzievskii-Paddack Blame it on YORP and Yarkovsky

  6. Yarkovsky at work

  7. Ups and downs of yorp

  8. Asteroid research projects

  9. Absolute Magnitude (H) • V mag at 1 AU from Sun/Earth, a = 0° • Phase Slope Parameter (G) • Defines curve over a range of phase angles • Accounts for “Opposition Effect” • Roughcorrelation to taxonomic class H-g curves

  10. 2000 DP107 Binary asteroids • Margot et al., 2002

  11. Optical Binary Discovery: Show Me the Lightcurve! • Best Proof: Mutual Events Binary asteroids • Stephens and Warner (2016, MPB 43)

  12. Finding the Ds/Dp Ratio: 1727 Mette • Use shallowest attenuation • Ds/Dp= • Ds/Dp= • Ds/Dp= Binary asteroids

  13. Rotation Statistics • Show frequency distribution • Signs of YORP • Excess of slow rotators • Flat distribution • Compare stats across families Family studiesPutting it all together

  14. Spin Axis Statistics • Show distribution • Signs of YORP • Grouping • Favoring poles Family studiesPutting it all together

  15. Rotational statistics

  16. The Minor Planet bulletin • Refereed journal (SAO/NASA ADS) • No Page Charges • Open to any author • Author friendly • Vol 46-3:146 pages, 220+ lightcurves! • http://minorplanet.info/MPB

  17. Alcdef Asteroid lightcurve data exchange format • Raw asteroid time-series data • 3.5 million observations • 32.5 million coming • Standard and simple formats • Open to anyone for upload and download • http://alcdef.org

  18. WILL YOUR WORK MAKE A DIFFERENCE? • YES! Minor Planet Mailing List (MPML) https://groups.yahoo.com/neo/groups/mpml/info All the Things (not just asteroids) Citizen Scientists can do http://socastrosci.org

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