Browsing Saint Mary's Faculty Articles and Other Works by Author "Cales, Sabrina"

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The discovery of the first “changing look” quasar: new insights into the physics and phenomenology of active galactic nuclei

LaMassa, Stephanie M.; Cales, Sabrina; Moran, Edward C.; Myers, Adam D.; Richards, Gordon T.; Eracleous, Michael; Heckman, Timothy M.; Gallo, Luigi C.; Urry, C. Megan (American Astronomical Society, 2015-02-20)

SDSS J015957.64+003310.5 is an X-ray selected, z = 0.31 active galactic nucleus (AGN) from the Stripe 82X survey that transitioned from a Type 1 quasar to a Type 1.9 AGN between 2000 and 2010. This is the most distant AGN, ...

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