October 2017 Seattle Astronomy on Tap (NS Merger)

Public outreach presentation that focused on the recent LIGO detection of a neutron star merger as well as a bit on heavy element nucleosynthesis.

Transcript

1. BUMMING AROUND THE MILKY WAY JENNIFER SOBECK* UNIVERSITY OF WASHINGTON OCTOBER 25, 2017
2. HHGTTG THEME Sloan Digital Sky Survey
5. A LITTLE OVER A WEEK AGO…
6. NEUTRON STAR MERGER DETECTION
8. August 17, 2017 LIGO Gravitational Wave Detection GW170817 VIRGO Signal Verification Kilonova A2017gfo GRAVITATIONAL WAVE DETECTION
9. NEUTRON STAR-NEUTRON STAR MERGER
10. COMPARISON OF GRAVITATIONAL WAVE SIGNALS
11. MULTI-FACILITY, MULTI-WAVELENGTH OBSERVATION
12. GAMMA RAY DETECTION Seconds-Minutes Post Gravitational Wave Signal
13. OPTICAL DETECTION Hours Post Gravitational Wave Signal April 28, 2017 August 17, 2017 August 18, 2017 August 31, 2017 1.0-meter Swope Telescope Images 6.5-meter Magellan Telescope Images NGC4993
14. Full Detection Timeline Merger Diagram
15. REAL TALK: STARS
16. LIFE CYCLE OF STARS High Mass Low Mass
17. NEUTRON STARS
18. NEUTRON STARS
19. REAL TALK: ELEMENTS
20. PERIODIC TABLE-STANDARD http://www.periodictable.com We are made of star stuff.
21. https://apod.nasa.gov/apod/ap171024.html PERIODIC TABLE-NUCLEOSYNTHESIS Neutron Merger Star Nucleosynthesis: Speculation! Your welcome.
22. AND SO, REMEMBER THIS…
24. Lanthanides NS MERGER LIGHT CURVES Metzger et al. 2017 Drout et al. 2017
25. ELEMENT MANUFACTURE IN NS MERGER Metzger et al. 2017
26. PROVEN: NS MERGERS MAKE ELEMENTS!
27. There is a moment in every dawn when light floats, there is the possibility of magic. Creation holds its breath.
28. MY ACTUAL WORK…
29. APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT-APOGEE 2 http://www.sdss.org/surveys/apogee-2/
30. There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.