Research Areas:

High Redshift Galaxies

Galaxy Evolution

Active Galaxies

Gravitational Lensing

Photometric Redshifts

Astrophysics Software


Dr. Peter L. Capak

I am an Associate Research Scientist with the NASA/JPL Spitzer Science Center at the California Institute of Technology where I study the formation and evolution of structure in the universe. My research interests are focused in two areas: the physical processes that govern the formation and evolution of the most massive galaxies in the early universe (z>2) and large area surveys to measure galaxy properties and probe Dark Energy and Dark Matter.

I am Principal Investigator of the SPLASH Spitzer Exploration Science program, lead of the COSMOS a project, lead of the CCAT high-z science working group, a full member of the Euclid consotia and leading to effort to produce enhanced imaging products and a source list for the Spitzer archive. I have also been co-organizer of the PHAT project aimed at developing a set of best practices for photometric redshifts and made significant contributions to the GOODS Legacy project including deep imaging of The Hawaii Hubble Deep Field North.

This website provides an overview of my current and past research efforts along with links to my CV and publications list. Links to useful information can also be found at the top of this page.

  News Releases

bulletWhen galaxies switch off: Some galaxies hit a point in their lives when their star formation is snuffed out, and they become "quenched". Quenched galaxies in the distant past appear to be much smaller than the quenched galaxies in the Universe today. This has always puzzled astronomers — how can these galaxies grow if they are no longer forming stars? A team of astronomers has now used a huge set of Hubble observations to give a surprisingly simple answer to this long-standing cosmic riddle.
Read more... 08-01-13

bulletNational Museum of African Art Presents “African Cosmos: Stellar Arts” “African Cosmos: Stellar Arts” will be on view at the Smithsonian’s National Museum of African Art from June 20 through Dec. 9. This is the first major exhibition exploring the historical legacy of African cultural astronomy and its intersection with traditional and contemporary African arts.
Read more... 05-30-12

bulletDark Matter Core Defies Explanation Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could challenge current theories about dark matter that predict galaxies should be anchored to the invisible substance even during the shock of a collision.
Read more... 03-02-12

bulletDark and bright: ESA chooses next two science missions The powerful influence of the Sun and the nature of the mysterious 'dark energy' motivate ESA’s next two science missions. Solar Orbiter and Euclid were selected today by ESA's Science Programme Committee for implementation, with launches planned for 2017 and 2019.
Read more... 10-04-11

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last update: 08/28/2013   ©2009 Peter Capak. All Rights Reserved. image