Exoplanets for the Masses: Crowdsourcing the Search for New Worlds
•Als PPTX, PDF herunterladen•
0 gefällt mir•42 views
Crowdsourcing the Search for New Worlds
Empfohlen
Weitere ähnliche Inhalte
Was ist angesagt?
Was ist angesagt? (20)
Ähnlich wie Exoplanets for the Masses: Crowdsourcing the Search for New Worlds
Ähnlich wie Exoplanets for the Masses: Crowdsourcing the Search for New Worlds (20)
Mehr von Epi Ludvik Nekaj 宇 赫
Mehr von Epi Ludvik Nekaj 宇 赫 (20)
Kürzlich hochgeladen
Kürzlich hochgeladen (20)
Exoplanets for the Masses: Crowdsourcing the Search for New Worlds
- 1. Exoplanets for the Masses: Crowdsourcing the Search for New Worlds Dr. Joshua Schlieder NASA Goddard Space Flight Center CSW2018 - Oct. 27, 2018 joshua.e.schlieder@nasa.gov
- 3. (Sizes to scale - Separations NOT to scale) Asteroids What about planets around other stars?
- 4. Why Study Exoplanets? 1. Planet Formation - From gas and dust to planets —> how? 2. Planet Demographics - Are there diverse planets orbiting the diversity of stars? 3. Habitability - How common are planets that can potentially support life?
- 5. Finding Exoplanets - The Transit Method Monitor the brightness of a star while a planet crosses in front and measure a characteristic drop https://svs.gsfc.nasa.gov/
- 6. Kepler and K2 - Measuring Transits From Space NASA Kepler measured the brightness of about 150,000 stars, every 30 minutes, over 4 years Kepler discovered more than 2,500 exoplanets and taught us something fundamental about the Universe – Planets are common and most stars host them!
- 7. A Sad Day for Exoplaneteers May 2013 – hardware failures lead to the loss of Kepler pointing control Kepler becomes K2 and continues discovering exoplanets – more than 300 as of September 2018!
- 8. Kepler and K2 – A Wealth of Data The data from Kepler/K2 is represented as a light curve Time (days) Brightness Brightness Brightness Petigura et al. 2016
- 9. Kepler and K2 – A Wealth of Data Kepler and K2 have provided a very large number of light curves Kepler light curves - >150,000 K2 light curves - >500,000 and counting The large data set and nature of the light curves make Kepler/K2 prime for crowdsourced citizen science!
- 10. Exoplanet Citizen Science Projects hosted on the Zooniverse citizen science platform (www.zooniverse.org) www.planethunters.org www.exoplanetexplorers.org
- 11. Planet Hunters - www.planethunters.org
- 12. Planet Hunters - www.planethunters.org
- 13. Planet Hunters - www.planethunters.org
- 14. Planet Hunters - www.planethunters.org What have Planet Hunters citizen scientists discovered? A planet in a quadruple star system “The most mysterious star in the Galaxy” Schwamb et al. 2013, Haven Giguere/Yale; Boyajian et al. 2016, NASA/JPL
- 18. Exoplanet Explorers www.exoplanetexplorers.org What have Exoplanet Explorers citizen scientists discovered? April 2017 - A five planet system discovered on live TV Christiansen et al. 2018, ABC/BBC/Zooniverse
- 19. What’s next for Exoplanet Citizen Science? Transiting Exoplanet Survey Satellite TESS An MIT led NASA Astrophysics Mission launched in April 2018
- 20. Transiting Exoplanet Survey Satellite TESS -Four telescopes -High precision brightness measurements of the closest stars -All-sky survey over 2 years -Designed to detect transiting planets in the Solar Neighborhood
- 21. TESS - four small telescopes working together 24o 96o
- 22. TESS’s First Planet Candidate Huang et al. 2018, Gandolfi et al. 2018 By the end of its mission, TESS will provide light curves for >20,000,000(!) stars Citizen scientists will be needed and astronomers are getting ready with new crowdsourcing platforms – stay tuned!
- 23. Exoplanet Citizen Science -Kepler /K2 provided data for exoplanet discovery via crowdsourcing -Citizen scientists used Planet Hunters and Exoplanet Explorers to make high impact discoveries -TESS will provide tens of millions of light curves for crowdsourced citizen science
- 25. Kepler - Exoplanets as of 2017 NASA
- 26. Kepler - What did we learn? A planetary censusPlanets are COMMON and most stars host at least one Super-Earths and Sub-Neptunes are the most frequent planets NASA, Petigura+2013 Earth size planets in habitable zones? Some detected, but very hard!
- 27. The road to launch Observatory fully integrated and tested
- 28. The road to launch Complete TESS space craft sent to Kennedy Space Center to undergo final preparation for launch
- 29. TESS Commissioning Observations TESS data is rich with science MIT, NASA
- 30. TESS First Light NASA, MIT
Hinweis der Redaktion
- Micron sized dust grains grow 13 orders of magnitude in size and 40 orders of magnitude in mass in millions of years
- Introduce Light curves, Show examples, Describe that there is more to be found – large data volume, biases in planet detection algorithms, prime for crowd sourcing
- Introduce Light curves, Show examples, Describe that there is more to be found – large data volume, biases in planet detection algorithms, prime for crowd sourcing
- Star Gazing Live Chris Lintott, Brian Cox, Julia Zemiro
- TESS - 200,000 bright targets @2 min cadence, Full Frame Images - 20,000,000 stars @30 min cadence JWST - transmission spectroscopy from 1 - 11 microns using NIRISS, 2 NIRCam grism settings, and MIRI - emission spectroscopy also an option
- TESS - 200,000 bright targets @2 min cadence, Full Frame Images - 20,000,000 stars @30 min cadence
- Known planet is on a 2000 day orbit and is ~10 Jupiter masses.