by Catherine Clark | Feb 21, 2022 | Daily Paper Summaries
Today’s author gets out their umbrella to model planets that graze their stellar hosts.
by Mark Popinchalk | Feb 12, 2022 | Daily Paper Summaries
Is it a shell, a cloud, a dust ring? Something is causing sudden and repeating changes in brightness around these stars!
by Katya Gozman | Sep 13, 2021 | Personal Experiences
Astronomy has traditionally been a very visual science, but it doesn’t have to stay this way. Learn how the organizers of the Audible Universe, a conference on sonification in astronomy, are paving the way for more inclusive and accessible data in astronomy by making the stars sing.
by Jana Steuer | Apr 26, 2021 | Daily Paper Summaries
Betelgeuse has captivated everyone’s attention by dimming significantly in 2019/2020 before returning to former brightness. Is the riddle really solved by dust or might there be another explanation? Is the star now entering its final stage before violently dying?
by Meredith Rawls | Oct 24, 2014 | Daily Paper Summaries
Astronomical data gathered over time has gaps. Even the most reliable space telescopes suffer from occasional pauses in their otherwise constant watchfulness. Why are gaps a problem? Can’t astronomers just analyze the short chunks of data that don’t have gaps? The answer: Fourier transforms.
by Sukrit Ranjan | May 8, 2013 | Daily Paper Summaries
Caption: H. A. Sawyer loading plates into the Harvard 16” Metcalf Doublet telescope. Picture from http://hea-www.harvard.edu/DASCH/telescopes.php Paper Title: 100-year DASCH Light Curves of Kepler Planet-Candidate Host Stars Authors: S. Tang et al First Author’s Affiliation: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Kavli Institute for Theoretical Physics, Santa Barbara, CA; California Institute of Technology, Pasadena, CA Journal: Publications of the Astronomical Society of the Pacific (Submitted) Introduction: the DASCH projectAstronomy has advanced in leaps and bounds over the last few hundred years. Perhaps the single greatest advance has been the switch from observing with our eyes to observing with cameras. Where once we inspected the heavens with our eyes and relied on sketches to record what we saw, now we attach imaging mechanisms directly to the telescope. Not only does this allow us to collect more photons, imaging mechanisms also give us the ability to store data for later analysis. A little more than a century ago, astronomers at Harvard made the switch to using photographic plates to image the heavens. Each plate, once analyzed, was cataloged, archived, and forgotten…until now.Researchers at Harvard recently recognized the promise of the data being held in these archives. Over a century’s worth of observations of the sky are recorded in these plates. By contrast, most objects observed as part of other projects have no more than a few decades worth of observations at best. This dataset offers us the remarkable opportunity to study how stars have evolved over almost a century. Who knows what long-term trends or cycles might be identified?To realize the potential of this dataset and answer questions like these, the...