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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 using with astronomical observations, searches for exotic new physics with optical polarization studies of distant galaxies, 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.
Interesting Thermonuclear & Core-Collapse Supernovae
   Supernovae are the incredibly energetic explosions of stars at the end of their lives. Supernovae are largely responsible for creating chemical elements heavier than Iron, distributing them throughout the cosmos, and further triggering new bursts of star formation. Every element in our body and in planet Earth began its own life in the distant past inside of a star, and many of these elements came to be part of you by way of a supernova. There are two main kinds of supernovae, including thermonuclear disruptions of white dwarf stars, and core-collapse supernovae, which result from the gravitational collapse of stars more than ~8 times as massive as our sun. With my collaborators at the Harvard-Smithsonian Center for Astrophysics and elsewhere, I have obtained near-infrared observations of dozens of supernova of all types, which contributed to larger multi-wavelength photometric and spectroscopic studies of these fascinating objects, in order to help learn about the underlying physical nature of these brilliant and cataclysmic celstial events which are so crucial to our existence.
Type II Supernova Light Curves and Spectra From the CfA, Hicken, M., Friedman, A.S. + 2017, The Astrophysical Journal Supplement Series, Vol. 233, Issue 1, id. 6, 11 pp. (arXiv:1706.01030) (DOI)
SN 2012cg: Evidence for Interaction Between a Normal Type Ia Supernova and a Non-Degenerate Binary Companion, Marion, G.H. + 2016, The Astrophysical Journal, Vol. 820, Issue 2, id. 92, 16 pp. (arXiv:1507.07261) (DOI)
High Density Circumstellar Interaction in the Luminous Type IIn SN 2010jl: The first 1100 days, Fransson, C. + 2014, The Astrophysical Journal, Volume 197, Issue 2, Article id. 118, 40 pp. (arXiv:1312.6617) (DOI)
Multi-color Optical and NIR Light Curves of 64 Stripped-Envelope Core-Collapse Supernovae , Bianco, F. + 2014, The Astrophysical Journal Supplement, Volume 213, Issue 2, Article id. 19, 21 pp. (arXiv:1405.1428) (DOI)
Type IIb Supernova SN 2011dh: Spectra and Photometry from the Ultraviolet to the Near-Infrared, Marion, G.H. + 2014, The Astrophysical Journal, Vol. 781, Issue 2, Article id. 69, 18 pp. (arXiv:1303.5482) (DOI)
A Panchromatic View of the Restless SN 2009ip Reveals the Explosive Ejection of a Massive Star Envelope, Margutti, R. + 2014, The Astrophysical Journal, Vol. 780, Issue 1, Article id. 21, 38 pp. (arXiv:1306.0038) (DOI)
The Fast and Furious Decay of the Peculiar Type-I Supernova 2005ek, Drout, M. + 2013, The Astrophysical Journal, Vol. 774, Issue 1, article id. 58, 18 pp. (arXiv:1306.2337) (DOI)
PS1-12sk is a Peculiar Supernova From a He-Rich Progenitor System in a Brightest Cluster Galaxy Environment, Sanders, N.E. + 2013, The Astrophysical Journal, Vol. 769, Issue 1, 39, 15 pp. (arXiv:1303.1818) (DOI)
From Shock Breakout to Peak and Beyond: Extensive Panchromatic Observations of the Type Ib Supernova 2008D Associated with Swift X-ray Transient 080109, Modjaz, M. + 2009, The Astrophysical Journal, Vol. 702, Issue 1, pp. 226-248 (arXiv:0805.2201) (DOI)
SN 2008ha: An Extremely Low Luminosity and Exceptionally Low Energy Supernova, Foley, R.J. + 2009, The Astronomical Journal, Vol. 138, Issue 2, pp. 376-391 (arXiv:0902.2794) (DOI)
The Golden Standard Type Ia Supernova 2005cf: Observations from the Ultraviolet to the Near-Infrared Wavebands, Wang, X. + 2009, The Astrophysical Journal, Vol. 697, Issue 1, pp. 380-408 (arXiv:0811.1205) (DOI)
Media Coverage
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
MIT Vera
Tufts/MIT Cosmo
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 (2015-2019).

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