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    I am an astronomer, cosmologist, and data scientist, currently a NSF funded Assistant Research Scientist at the UC San Diego Center for Astrophysics & Space Sciences (CASS) and a Research Affiliate in the MIT STS Program. I work on several theoretical and observational projects to devise and implement fun experiments that leverage cosmology to test fundamental physics, including novel tests of quantum theory with astronomical observations as well as Infrared and Optical studies of Supernovae with ground and space based telescopes to measure the expansion history of the universe, cosmic acceleration, and dark energy. I enjoy exploring fascinating scientific questions at the intersection between observational astronomy, astrophysics, data analysis, and the philosophy of science through research, science writing, art, animation, public outreach, and science media engagement. For more, see my Bio, Resume, and CV.
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(a) Animation 4a corresponds to Fig. 2a of Friedman+2013 for the case in which the event redshifts are fixed to zA=1 and zB=3, while the angular separation α as seen from Earth is allowed to vary from 0 to 360 degrees. The green circles show the projection of the past lightcones on the hypersurface τ=τAB when the lightcones first intersect; these are also shown as black circles projected onto the τ=0 plane. The movie represents a point (zA, zB)=(1,3) in the zA - zB plane which lies in the dark gray region of Fig 3b of Friedman+2013 where all event pairs have a shared causal past for any angular separation.

(b) Animation 4b for the same case as in Animation 4a, as viewed in the τ=0 plane at the big bang.

University of California, San Diego UCSD Center for Astrophysics & Space Sciences Massachusetts Institute of Technology MIT Center for Theoretical Physics Institute for Quantum Optics and Quantum Information, Vienna Harvard University Astronomy Harvard-Smithsonian Center for Astrophysics UC Berkeley Astronomy National Science Foundation National Aernautics & Space Administration
Last Updated: Andrew Samuel Friedman, 6/2017

University of California, San Diego, 9500 Gilman Drive
CASS, M/C 0424, SERF Bldg. 334, La Jolla, CA 92093-0424, USA (858) 534-5416


This material is based upon work supported by the National Science Foundation under NSF Award #1056580 (2012-2014) through an NSF Science, Technology, and Society Postdoctoral Fellowship at MIT and the NSF INSPIRE program via NSF Award #1541160 (2015-2018).

Original animations are shared under a
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 US License