Head, Experimental Astrophysics Group
University of Chicago
Current Research Projects:
Dark Energy Survey
DES on Facebook
Dark Energy Detectives
Dark Energy Spectroscopic Instrument
Project to build a 5000 fiber spectrograph for the Mayall telescope at Kitt Peak, Arizona
LSST (Large Synoptic Survey Telescope)
LSST Dark Energy Science Collaboration
Sloan Digital Sky Survey
: Public website, a few nuggets of information here, especially under "Collaboration"
: Project Book - provides much technical information.
: Get the data
: Next generation SDSS (Note that Fermilab is not a member institution)
Observational Foundations of Cosmology
Some links and essays on the early years of cosmology
Let's Trash-Talk Hubble!
- Papers from 2011
A Tale of two Blunders
- How Lemaitre and Hubble blundered yet determined the same value for the Hubble constant.
The Folly of Citations
- Who first measured the radial velocity of NGC 1700? The citations won't help you.
The de Sitter Effect
- What is it, exactly?
De Sitter's role in discovering the "expanding universe"
No one ever noticed that Lundmark's distances have a severe bias with apparent magnitude. Until now.
If you think you know who first measured the "Hubble Constant", you are wrong.
That is how long it took for people to realize that the universe is expanding.
The first Cepheid identified by Hubble in M31.