Author Archives: Chris

Compiling MOOG on OSX

Just a quick post for those who want to compile Chris Sneden‘s spectral line analysis package MOOG. Chris provides many helpful Makefiles with the code, including a few for Mac computers. The problem is it assumes we’re using the g77 … Continue reading

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The Great Eclipse of 2017

Sixteen hours of driving is a lot. That’s how long it took us to drive the 888 miles from Pasadena, CA to Mackay, ID. But that’s what you do to see an event like the 2017 eclipse. Sure, we could … Continue reading

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What, If Anything, Does Dust Tell Us about Supernovae

Here’ s a talk I gave at a recent Type Ia supernova progenitors workshop held at Carnegie. I talk about the rather perplexing properties of interstellar dust as inferred by using type Ia’s a “standard crayons”.  Or is it really … Continue reading

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Got an old iSight?

Reading some online reviews of CMOS and CCD detectors for amateur telescopes, I often came across words to the effect of “basically a glorified web-cam”. It got me to thinking: my old iSight camera (the cylindrical ones we used to … Continue reading

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A Tale of Three Samplers

This summer, I hired an undergraduate student to look into calibrating our CSP supernovae. I wanted to do some more sophisticated models and so we looked into a few MCMC modules for python: pystan, pymc, and emcee. Each has its … Continue reading

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From g77 to gfortran

Lots of friends and colleagues have been happily using g77 as their fortran compiler for years. Now, however, you can’t find an up-to-date g77 compiler very easily and we’re all supposed to start using gfortran. Here’s some tips for getting … Continue reading

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AASTeX, BibTeX, and Journal style

I’ve now got a winning strategy for citations:  BibDesk, AASTeX, and a python script to clean it all up. Keeping track of citations is a pain, but there are lots of great tools out there for keeping them all straight … Continue reading

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Astronomy Lecture Series

Something I’ve worked hard on is the Carnegie Astronomy Lecture Series.  This is a very popular series of talks given primarily by Carnegie Astronomers on all sorts of astronomical topics.  They are usually given at the Huntington Library and Botanical … Continue reading

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Beautiful Math

Installed a WordPress plugin called jetpack because it’s supposed to allow you to embed latex formulas in your posts/pages.  This alone could bring me over for good from plone.  So…  let’s give a try by writing out the bend equation … Continue reading

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Pyflot anyone?

So this flot thing is pretty cool.  But I hate working in JS and most of my web tinkering is using Django, which is python-based.  So I wrote a quick and dirty module for generating flot output based on a … Continue reading

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