The Nuclear Spectroscopic Telescope Array, or NuSTAR, sees the high-energy X-rays emitted by the densest, hottest regions of the universe. Professor Harrison will describe NuSTAR's unlikely journey and share some of its remarkable results.
Where do you go to look at the stars? Away from city lights, certainly. But if you're serious about peering far out into space, to the observable edges of our universe, at submillimeter wavelengths, you have to do a little better than that.
"I work on a broad range of topics, but basically I like studying how big things form. I study how galaxies form, how stars form, and how supermassive black holes form. Recently, I started studying how planets form"
Now new findings by Caltech researchers may help to test a model that helps explain the problem of supermassive black holes existing in the early universe—such black holes would have formed less than one billion years after the Big Bang.
Astronomical surveys have been cataloguing the night sky since the beginning of the 20th century. The intermediate Palomar Transient Factory (iPTF)—led by Caltech—started searching the skies for certain types of stars and related phenomena in February. Two recent papers by iPTF astronomers describe first-time detections.