511 citations · 5.3k across the 96 of their papers we have counts for
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Finding Rare AGN: XMM-Newton and Chandra Observations of SDSS Stripe 82
Stephanie M. LaMassa, C. Megan Urry, Nico Cappelluti +15
We have analyzed the {\it XMM-Newton} and {\it Chandra} data overlapping 16.5 deg of Sloan Digital Sky Survey Stripe 82, including 4.6 deg of proprietary {\it X…
On the Star Formation-AGN Connection at
Stephanie M. LaMassa, Timothy M. Heckman, Andrew Ptak +1
Using the spectra of a sample of 28,000 nearby obscured active galaxies from Data Release 7 of the Sloan Digital Sky Survey (SDSS), we probe the connection between AGN activi…
Finding Rare AGN: X-ray Number Counts of Chandra Sources in Stripe 82
Stephanie M. LaMassa, C. Megan Urry, Eilat Glikman +14
We present the first results of a wide area X-ray survey within the Sloan Digital Sky Survey (SDSS) Stripe 82, a 300 deg region of the sky with a substantial investment in mult…
Disentangling AGN and Star Formation in Soft X-rays
Stephanie M. LaMassa, T. M. Heckman, A. Ptak
We have explored the interplay of star formation and AGN activity in soft X-rays (0.5-2 keV) in two samples of Seyfert 2 galaxies (Sy2s). Using a combination of low resolution CCD…
Exploring the Connection Between Star Formation and AGN Activity in the Local Universe
Stephanie M. LaMassa, T. M. Heckman, A. Ptak +3
We study a combined sample of 264 star-forming, 51 composite, and 73 active galaxies using optical spectra from SDSS and mid-infrared (mid-IR) spectra from the Spitzer Infrared Spe…
Uncovering Obscured Active Galactic Nuclei in Homogeneously Selected Samples of Seyfert 2 Galaxies
Stephanie M. LaMassa, T. M. Heckman, A. Ptak +4
We have analyzed archival \textit{Chandra} and \textit{XMM-Newton} data for two nearly complete homogeneously selected samples of type 2 Seyfert galaxies (Sy2s). These samples were…