Brian Connolly

Postdoctoral Researcher in the University of Pennsylvania
I can be contacted at:
University of Pennsylvania
Department of Physics
209 S. 33rd Street - DRL Building
Philadelphia, PA 19104
Phone: (315) 853-4838
Fax: (215) 898-2010

Current Research

I am an astrostatistian working on a range of problems having to do with classification and non-parametric comparisons of astronomical objects.  Formally, I am a member of the DES collaboration, although the methods that I have developed have found applications in other fields.

Along these lines, I'm working on a supernova classification package called pSNid, which is an extension of Masao Sako's pSNid, described here, that uses a variety of statistical methods to identify and classify supernovae photometrically.  I'm also working with Marisa March, currently a postdoc at the University of Sussex, on an extension of pSNid to fit cosmology at the light curve level. 

I also dabble in IR astronomy, specifically the statistical study of ULIRG spectra.  Papers on the subject can be found here and here.  I'm currently a co-I on the Hershel ULIRG Reference Survey (HERUS) PI-ed by Duncan Farrah.

Also, the Galaxy Zoo 2 team has allowed me to dabble with some of their data.  Worked with a Hamilton College undergraduate, Patrick Barnes on understanding the relation between spirals and the bulge size using network diagrams.  His write-up can be found here.  I've also written a simple program to calculate the probability that, within statistical uncertainties, volunteers are voting the same way for two galaxies.  The tar-ball not only contains the program, but a README file that describes what the program does, how to compile it and how to run it.
 


Curriculum Vitae
Resume


Recent Publications

Photomeric SN Ia Candidates from the Three-Year SDSS-II Survey Data
A Bayesian Approach to Comparing Cosmic Ray Energy Spectra
Principal Component Analysis of the Spitzer IRS spectra of Ultraluminous Infrared Galaxies

Hobbies

When the right data set comes around, I like to see if I can apply the methods that I developed can be used in other areas of research.
For instance, I worked with Nathan Goodale of Hamilton College to extend the techniques of comparing cosmic ray and galaxy spectra
to comparing the shapes of lithic tools and traditions of pottery in the American Southwest.

Currently, I'm working with a Wei-Jen Chang, also at Hamilton College, in using statistical techniques to find genes that are crucial in developmental stages of Ich.

Outreach

As a graduate student and later a postdoc at Columbia, I participated in a variety of outread.  While a postdoc at Columbia I and my colleagues wrote a brochure on cosmic rays called Cosmic Extremes.  More recently, I have been using undergraduates at Hamilton College to explore astrostatical techniques to sub-type Ia supernovae and analyze Galaxy Zoo data.


Interesting People

Interesting Places

Interesting Stuff


Send e-mail to 

The base URL for this page is http://www.sas.upenn.edu/~brianco