Browsing by Author "Burgett, William"

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Changing-look Quasar Candidates: First Results from Follow-up Spectroscopy of Highly Optically Variable Quasars

MacLeod, Chelsea L.; Green, Paul J.; Anderson, Scott F.; Bruce, Alastair; Eracleous, Michael; Graham, Matthew; Homan, David; Lawrence, Andy; LeBleu, Amy; Ross, Nicholas P.; Ruan, John J.; Runnoe, Jessie; Stern, Daniel; Burgett, William; Chambers, Kenneth C.; Kaiser, Nick; Magnier, Eugene; Metcalfe, Nigel (2019)

Active galactic nuclei (AGNs) that show strong rest-frame optical/UV variability in their blue continuum and broad line emission are classified as changing-look AGN, or at higher luminosities, changing- look quasars (CLQs). ...
Galactic reddening in 3D from stellar photometry - an improved map

Green, Gregory M.; Schlafly, Edward F.; Finkbeiner, Douglas; Rix, Hans-Walter; Martin, Nicolas; Burgett, William; Draper, Peter W.; Flewelling, Heather; Hodapp, Klaus; Kaiser, Nicholas; Kudritzki, Rolf-Peter; Magnier, Eugene A.; Metcalfe, Nigel; Tonry, John L.; Wainscoat, Richard; Waters, Christopher (2018)

We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations of delta &gsim; -30°) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry ...

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