- Dr. Andrew Friedman passed away July 10, 2020
Assistant Research Scientist
Dr. Friedman was an astronomer, cosmologist, and data scientist. An NSF funded Assistant Research Scientist at the UC San Diego Center for Astrophysics & Space Sciences and a Research Affiliate in the MIT Program in Science, Technology and Society (STS).
Worked several theoretical and observational cosmology projects to devise and implement fun experiments that leverage cosmology to help test fundamental physics. These included a series of experiments with colleagues to test quantum theory with astronomical observations as well as Infrared and Optical observations of Type Ia Supernovae with ground and space based telescopes, which can be used to measure the expansion history of the universe, cosmic acceleration, and dark energy.
Before UCSD, he was an NSF Postdoctoral Fellow at MIT, a NSF Funded Research Associate at MIT, and a Visiting Research Scientist at the MIT Center for Theoretical Physics. He completed his PhD in Astronomy & Astrophysics from the Harvard University Department of Astronomy and he received his BA in Physics & Astrophysics from UC Berkeley.
He was very interested in projects at the intersection between observational astronomy, astrophysics, data analysis, and the philosophy of science, especially the philosophy of cosmology. He was excited to explore a range of fascinating scientific questions through research, science writing, art, animation, public outreach, and working with the science media. For more, see his Bio, Resume, and CV.
Type Ia Supernovae are Excellent Standard Candles in the Near-Infrared, Avelino, A., Friedman, A.S., Mandel, K.S., Jones, D.O., Challis, P. and Kirshner, R.P. 2019, (arXiv:1902.03261) (PDF)
Constraints on Lorentz Invariance and CPT Violation using Optical Photometry and Polarimetry of Active Galaxies BL Lacertae and S5 B0716+714, Friedman, A.S., Leon, D., Crowley, K.D., Johnson, D., Teply, G., Tytler, D., Keating, B.G., and Cole, G.M. 2019, (arXiv:1809.08356) (PDF)
Relaxed Bell Inequalities with Arbitrary Measurement Dependence for Each Observer, Friedman, A.S., Guth, A.H., Hall, M.J.W., Kaiser, D.I., and Gallicchio, J. 2018, Physical Review A, Vol. 99, Issue 1, id. 012121, (arXiv:1809.01307) (PDF)
Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars, Rauch, D., Handsteiner, J., Hochrainer, A., Gallicchio, J., Friedman, A.S. + 2018, Physical Review Letters, Vol. 121, Issue 8, id. 080403, (arXiv:1808.05966) (PDF) (DOI) (Supplemental Material) [Editors' Suggestion]
Astronomical Random Numbers for Quantum Foundations Experiments, Leung, C., Brown, A., Nguyen, H., Friedman, A.S., Kaiser, D.I., and Gallicchio, J., 2018, Physical Review A, Vol. 97, Issue 4, id. 042120, (arXiv:1706.02276) (DOI) [Featured in Physics]
Cosmic Bell Test: Measurement Settings from Milky Way Stars, Handsteiner, J., Friedman, A.S. + 2017, Physical Review Letters, Vol. 118, Issue 6, id. 060401,(arXiv:1611.06985) (DOI) (Supplemental Material)
CFAIR2: Near-Infrared Light Curves of 94 Type Ia Supernovae, Friedman, A.S. + 2015, The Astrophysical Journal Supplement Series, Vol. 220, Issue 1, id. 9, 35 pp. (arXiv:1408.0465) (DOI)
Testing Bell's Inequality with Cosmic Photons: Closing the Setting-Independence Loophole, Gallicchio, J., Friedman, A.S., and Kaiser, D.I. 2014, Physical Review Letters, Vol. 112, Issue 11, id. 110405, 5 pp. (arXiv:1310.3288) (DOI)
The Shared Causal Pasts and Futures of Cosmological Events, Friedman, A.S., Kaiser, D.I., and Gallicchio, J. 2013, Physical Review D, Vol. 88, Issue 4, id. 044038, 18 pp. (arXiv:1305.3943) (DOI)
Infrared Light Curves of Type Ia Supernovae, Friedman, Andrew S. 2012, PhD Thesis, Harvard University, ProQuest Dissertations and Theses, Publication Number: AAT 3513964; ISBN: 9781267446190; Source: Dissertation Abstracts International, Volume: 73-11(E), Section: B.; 272 pp. Advisor: Robert P. Kirshner, (NASA/ADS) (ProQuest)
Type Ia Supernova Light Curve Inference: Hierarchical Bayesian Analysis in the Near Infrared, Mandel, K.S., Wood-Vasey, W.M., Friedman, A.S., Kirshner, R.P., 2009, The Astrophysical Journal, Vol. 704, Issue 1, pp. 629-651 (arXiv:0908.0536) (DOI)
Type Ia Supernovae are Good Standard Candles in the Near Infrared: Evidence from PAIRITEL, Wood-Vasey, W.M., Friedman, A.S. + 2008, The Astrophysical Journal, Vol. 689, Issue 1, pp. 377-390, (arXiv:0711.2068) (DOI)
Toward a More Standardized Candle Using GRB Energetics and Spectra, Friedman, A.S. & Bloom, J.S. 2005, The Astrophysical Journal, Vol. 627, Issue 1, pp. 1-25, (astro-ph/0408413) (DOI)