Microlensing Takes Off: Toward the Galactic Distribution of Planets
APA
Gould, A. (2015). Microlensing Takes Off: Toward the Galactic Distribution of Planets. Perimeter Institute. https://pirsa.org/15030066
MLA
Gould, Andrew. Microlensing Takes Off: Toward the Galactic Distribution of Planets. Perimeter Institute, Mar. 11, 2015, https://pirsa.org/15030066
BibTex
@misc{ pirsa_PIRSA:15030066, doi = {10.48660/15030066}, url = {https://pirsa.org/15030066}, author = {Gould, Andrew}, keywords = {Other}, language = {en}, title = {Microlensing Takes Off: Toward the Galactic Distribution of Planets}, publisher = {Perimeter Institute}, year = {2015}, month = {mar}, note = {PIRSA:15030066 see, \url{https://pirsa.org}} }
After 50 years of dreaming about it, space-based microlensing observations are now underway. A 2014 100-hr Spitzer Pilot Program generated "microlens parallaxes" for dozens of lenses, opening the prospect of measuring the Galactic distribution of planets. This program will be expanded 8-fold in 2015. Analogous observations by Kepler will measure the mass function of free-floating planets.
WFIRST microlensing observations will, as advertised, "complete the planetary census" but they will do an immense amount of astrophysics as well. I discuss how microlensing's take off builds on rapid, ongoing, ground-based developments.