Research Interests

Dr. Joel R. Primack specializes in the formation and evolution of galaxies and the nature of the dark matter that makes up most of the matter in the universe. After helping to create what is now called the "Standard Model" of particle physics, Primack began working in cosmology in the late 1970s, and he became a leader in the new field of particle astrophysics.  His 1982 paper with Heinz Pagels was the first to propose that a natural candidate for the dark matter is the lightest supersymmetric particle.  He is one of the principal originators and developers of the theory of Cold Dark Matter, which has become the basis for the standard modern picture of structure formation in the universe.  With support from the National Science Foundation, NASA, and the Department of Energy, he is currently using supercomputers to simulate and visualize the evolution of the universe and the formation of galaxies under various assumptions, and comparing the predictions of these theories to the latest observational data.

Primack shared the APS Forum on Physics and Society Award in 1977 with Frank von Hippel of Princeton for their book Advice and Dissent: Scientists in the Political Arena (Basic Books, 1974; New American Library, 1976).  Primack was made a Fellow of the American Physical Society (APS) in 1988 "for pioneering contributions to gauge theory and cosmology."  He was elected to the Executive Committee of the APS Division of Astrophysics 2001-2002.  He was a member of the APS Panel on Public Affairs 2002-2004, and chaired the APS Forum on Physics and Society in 2005. In 2004 he chaired the APS committee on NASA funding for astronomy. He has served on numerous advisory panels to DOE, NASA, and NSF. In 2006-07 he served on the National Academy of Sciences Beyond Einstein study.

In 1995 Primack was made a Fellow of the American Association for the Advancement of Science (AAAS), "for pioneering efforts in the establishment of the AAAS Congressional Science Fellows Program and for dedication to expanding the use of science in policymaking throughout government".  He has served on the board of the Federation of American Scientists and was a founder of the Union of Concerned Scientists.  His popular articles on efforts to protect the near-Earth space environment have appeared in Bulletin of the Atomic Scientists, Science, Scientific American, and Technology Review. He was a member of the AAAS Committee on Scientific Freedom and Responsibility, and helped to establish the AAAS Science and Human Rights program.  He also served as an adviser to and participant in the Science and the Spiritual Quest project, and as chairman of the advisory committee for the AAAS Program of Dialogue on Science, Ethics, and Religion 2000-2002. 

Primack was one of the main advisors for the Smithsonian Air and Space Museum's 1996 IMAX film Cosmic Voyage, and he is now working with leading planetariums to help make the invisible universe visible.  In addition to more than 200 technical articles in professional journals, Primack has written a number of articles aimed at a more popular audience.  These include articles in the World Book Encyclopedia and in publications such as Astronomy, Beam Line, California Wild, Sky and Telescope, and in the McGraw-Hill Encyclopedia of Science and the Encyclopedia of Astronomy and Astrophysics. With Nancy Abrams, he is the author of The View from the Center of the Universe: Discovering Our Extraordinary Place in the Cosmos (Riverhead/Penguin, 2006) and The New Universe and the Human Future: How a Shared Cosmology Could Transform the World (Yale University Press, 2011).

Selected Peer-Reviewed Publications (in chronological order)

Supersymmetry, cosmology, and new physics at teraelectronvolt energies 1982, Phys. Rev. Letters 48, 223. Pagels, Heinz, and Primack, Joel R. (369 citations in NASA Astrophysics Data System)

Formation of galaxies and large-scale structure with cold dark matter 1984, Nature 311, 517. Blumenthal, G. R., Faber, S. M., Primack, J. R., Rees, M. J. (928 ADS cites)

Contraction of dark matter galactic halos due to baryonic infall 1986, ApJ 301, 27. Blumenthal, G. R., Faber, S. M., Flores, R., Primack, J. R. (632 ADS)

Dynamical effects of the cosmological constant 1991, MNRAS 251, 128. Lahav, Ofer, Lilje, Per B., Primack, Joel R., Rees, Martin J. (441 ADS)

Semi-analytic modeling of galaxy formation: the local Universe 1999, MNRAS 310, 1087. Somerville, Rachel S., Primack, Joel R. (652 ADS) *

The nature of high-redshift galaxies 2001, MNRAS 320, 504. Somerville, Rachel S.; Primack, Joel R., Faber, S. M. (489 ADS) *
Profiles of dark haloes: evolution, scatter and environment 2001, MNRAS 321, 559. Bullock, J. S., Kolatt, T. S., Sigad, Y., Somerville, R. S., Kravtsov, A. V., Klypin, A. A., Primack, J. R., Dekel, A. (1235 ADS) *

Concentrations of dark halos from their assembly histories 2002, ApJ 568, 52. Wechsler, R. H., Bullock, J. S., Primack, J. R., Kravtsov, A. V., Dekel, A. (499 ADS) *

A New Non-Parametric Approach to Galaxy Morphological Classification 2004, AJ 128, 163-182. Jennifer M. Lotz, Joel Primack, and Piero Madau (180 ADS)

The shape of dark matter halos 2006, MNRAS 367, 1781-1796. Allgood, B., Flores, R., Primack, J., Kravtsov, A., Wecsler, R., Faltenbacher, A., Bullock, J. (190 ADS) *

Feedback in Simulations of Disk Galaxy Major Mergers 2006, MNRAS 373, 1013. T. J. Cox, Patrik Jonsson, Joel R. Primack, and Rachel S. Somerville (149 ADS) *

Simulations of Dust in Interacting Galaxies I: Dust Attenuation 2006, ApJ 637, 255. Patrik Jonsson, T. J. Cox, Joel R. Primack, Rachel S. Somerville *

Predicting the Properties of the Remnants of Dissipative Galaxy Mergers 2008, MNRAS 384, 94. M. Covington, A. Dekel, T. J. Cox, P. Jonsson, and J. R. Primack *

GeV Gamma-Ray Attenuation and the High-Redshift UV Background 2009, MNRAS 402, 565. R.C. Gilmore, P. Madau, J. R. Primack, R. S. Somerville, F. Haardt *

Extragalactic background light inferred from AEGIS galaxy-SED-type fractions 2011, MNRAS 410, 2556, A. Dominguez, J. R. Primack, et al. *

Halos and galaxies in the standard cosmological model: results from the Bolshoi simulation 2011, ApJ, 740, 102. A. Klypin, S. Trujillo-Gomez, J. Primack

* These papers are based on PhD dissertation research supervised by Joel Primack

Publications with Nancy Abrams

View from the Center of the Universe by Nancy Abrams and Joel Primack

Papers on Cosmology and Culture by Nancy Abrams and Joel Primack

Dwight H. Terry Lectures: Cosmic Society: The New Universe and the Human Future by Nancy Abrams and Joel Primack

The New Universe and the Human Future: How a Shared Cosmology Could Transform the World by Nancy Abrams and Joel Primack

Quick Links

The University of California High-Performance AstroComputing Center(UC-HIPACC)

Cosmology Group Webage

The New Universe and the Human Future: How a Shared Cosmology Could Transform the World

View as a PDF