<p>I’m actually a senior astrophysics major in CC. I don’t know too much about chicago’s department, but I can help answer any questions on the departments at columbia.</p>
<p>Columbia really enphasizes research for its undergrads, much so than other schools. I don’t know what branch of physics and astrophysics you are interested in, but columbia has a few large research groups in physics/astrophysics that love undergrads. In particular, I will point out Szabi Marka’s experimental gravity group, who work on detecting gravitational waves from black hole mergers and other extreme phenomena by using mile long underground interferometers.
See [GECo[/url</a>] </p>
<p>Another large research group in the physics department that does work in astrophysics is Amber Miller’s observational cosmology group, who work on observations of the cosmic microwave background, which is light from the very early universe when the density dropped low enough to be tansparent to photons, and important in the study of structure formation in the universe.
See [url=<a href=“http://calvin.phys.columbia.edu/group_web/index.php]The”>http://calvin.phys.columbia.edu/group_web/index.php]The</a> Miller CMB Group at Columbia University](<a href=“http://geco.phys.columbia.edu/]GECo[/url”>http://geco.phys.columbia.edu/)</p>
<p>If you are interested in astroparticle physics, Elena Aprile has a large dark matter detection group, which builds and uses liquid xenon and argon detectors in the race to detect dark matter as predicted under supersymmetry. The detectors are build at columbia’s Nevis experimental particle physics lab, which is quite large and a lot of undergrads work at.
See <a href=“http://xenon.astro.columbia.edu/group.html[/url]”>http://xenon.astro.columbia.edu/group.html</a> , <a href=“http://www.nevis.columbia.edu/[/url]”>http://www.nevis.columbia.edu/</a></p>
<p>There are also some very very famous theorists in the departments, who have worked with undergrads in the past: Andrei Beloborodov (theoretical high-energy astrophysics, general relativity), Lam Hui (physical cosmology, early universe physics), Zoltan Haiman (cosmology, structure formation), and of course Brian Greene (I don’t think he needs an introduction) .</p>
<p>As you can see, a fairly large portion of the physics department is devoted to astrophysics, and you can definitely work in astrophysics as a physics major. Columbia’s physics department has one of the best graduate placement rates around, and perennially has some of the best students at columbia. A lot of columbia college valedictorians and salutatorians come out of the physics department, including last year’s, who was chemical physics, and the year before, who was physics, and is now in the infamous astrophysical sciences phd program at princeton. </p>
<p>In the physics department, there are ~45 professors and ~30 undergrads, and in astronomy, ~15 faculty and ~10 undergrads. Class sizes are very small and everyone gets to do research in whatever group and field they want, since there is no competition for spots due to the student:faculty ratio. The faculty all love the undergrads, as we’re all pretty smart (I think?), and the undergrads have their own office and lounge so it’s a very friendly environment.</p>
<p>Feel free to ask more questions!</p>