Python packaging, astropy, and Travis CI

Last week, I started to re-visited quickspeck, a python package by Duncan Hanson that allows to create angular power spectra for cosmic fields under the Limber approximation (see this paper for a nice overview and an extension). In light of the upcoming CMB lensing workshop at Stanford and our ongoing work on the cross correlation between … Continue reading Python packaging, astropy, and Travis CI

git for .profiles and nbviewer extensions

I just painfully became aware of the importance of adding the different profiles (.bashrc, .bash_profile, .ipython, etc.) to version control. To ignore all but a few relevant files in the home directory, I'd use following as .gitignore: * !*/ !.gitignore !.bash_profile !.jupyter/ !.ipython/ Moreover, I started to experiment a bit with extensions to jupyter through … Continue reading git for .profiles and nbviewer extensions

PyCon videos

The PyCon took place a few weeks ago in Portland, and I have yet to attend this conference for the first time. However, I found the slides very helpful and the videos and great to watch. In particular, I can recommend: The Keynote and python visualization landscape by Jake VanderPlas, who gave two great talks Introduction … Continue reading PyCon videos

A new, large scale map of interstellar reddening

tl;dr: Link to paper & data at the bottom Over the past few months, Brandon Hensley, Olivier Doré, and myself have revisited the correlation between interstellar reddening by dust grains and the atomic neutral hydrogen column density. The basic idea is that HI and dust grains are well-mixed in the ISM and thus that HI can … Continue reading A new, large scale map of interstellar reddening