Search Results - "Davenport, James R A"

THE KEPLER CATALOG OF STELLAR FLARES by Davenport, James R. A.

“…ABSTRACT A homogeneous search for stellar flares has been performed using every available Kepler light curve. An iterative light curve de-trending approach was…”
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Chromospheric Activity of HAT-P-11: An Unusually Active Planet-hosting K Star by Morris, Brett M., Hawley, Suzanne L., Hebb, Leslie, Sakari, Charli, Davenport, James. R. A., Isaacson, Howard, Howard, Andrew W., Montet, Benjamin T., Agol, Eric

“…Kepler photometry of the hot Neptune host star HAT-P-11 suggests that its spot latitude distribution is comparable to the Sun's near solar maximum. We search…”
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Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?-Results Using APO 3.5 m Telescope Spectroscopic Observations and Gaia-DR2 Data by Notsu, Yuta, Maehara, Hiroyuki, Honda, Satoshi, Hawley, Suzanne L., Davenport, James R. A., Namekata, Kosuke, Notsu, Shota, Ikuta, Kai, Nogami, Daisaku, Shibata, Kazunari

“…We report the latest view of Kepler solar-type (G-type main-sequence) superflare stars, including recent updates with Apache Point Observatory (APO) 3.5 m…”
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The Starspots of HAT-P-11: Evidence for a Solar-like Dynamo by Morris, Brett M., Hebb, Leslie, Davenport, James R. A., Rohn, Graeme, Hawley, Suzanne L.

“…We measure the starspot radii and latitude distribution on the K4 dwarf HAT-P-11 from Kepler short-cadence photometry. We take advantage of starspot…”
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Possible Bright Starspots on TRAPPIST-1 by Morris, Brett M., Agol, Eric, Davenport, James R. A., Hawley, Suzanne L.

“…The M8V star TRAPPIST-1 hosts seven roughly Earth-sized planets and is a promising target for exoplanet characterization. Kepler/K2 Campaign 12 observations of…”
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Stellar Rotation in the K2 Sample: Evidence for Modified Spin-down by Gordon, Tyler A., Davenport, James R. A., Angus, Ruth, Foreman-Mackey, Daniel, Agol, Eric, Covey, Kevin R., Agüeros, Marcel A., Kipping, David

“…Abstract We analyze light curves of 284,834 unique K2 targets using a Gaussian process model with a quasi-periodic kernel function. By cross-matching K2 stars…”
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Searching for Stellar Activity Cycles Using Flares: The Short- and Long-timescale Activity Variations of TIC-272272592 by Wainer, Tobin M., Davenport, James R. A., Tovar Mendoza, Guadalupe, Feinstein, Adina D., Wagg, Tom

“…Abstract We examine 4 yr of Kepler 30 minutes data, and five sectors of Transiting Exoplanet Survey Satellite 2 minutes data for the dM3 star…”
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The Breakthrough Listen Search for Intelligent Life: Detection and Characterization of Anomalous Transits in Kepler Lightcurves by Zuckerman, Anna, Davenport, James R. A., Croft, Steve, Siemion, Andrew, de Pater, Imke

“…Abstract Never before has the detection and characterization of exoplanets via transit photometry been as promising and feasible as it is now, due to the…”
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The Weird and the Wonderful in Our Solar System: Searching for Serendipity in the Legacy Survey of Space and Time by Rogers, Brian, Lintott, Chris J., Croft, Steve, Schwamb, Megan E., Davenport, James R. A.

“…Abstract We present a novel method for anomaly detection in solar system object data in preparation for the Legacy Survey of Space and Time. We train a deep…”
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Gaia17bpp: A Giant Star with the Deepest and Longest Known Dimming Event by Tzanidakis, Anastasios, Davenport, James R. A., Bellm, Eric C., Wang, Yuankun

“…Abstract We report the serendipitous discovery of Gaia17bpp/2MASS J19372316+1759029, a binary star with a deep single large-amplitude dimming event of ∼4.5 mag…”
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Temporal Evolution of Spatially Resolved Individual Star Spots on a Planet-hosting Solar-type Star: Kepler-17 by Namekata, Kosuke, Davenport, James R. A., Morris, Brett M., Hawley, Suzanne L., Maehara, Hiroyuki, Notsu, Yuta, Toriumi, Shin, Ikuta, Kai, Notsu, Shota, Honda, Satoshi, Nogami, Daisaku, Shibata, Kazunari

“…Star spot evolution is visible evidence of the emergence/decay of the magnetic field on a stellar surface, and it is therefore important for the understanding…”
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KEPLER FLARES. IV. A COMPREHENSIVE ANALYSIS OF THE ACTIVITY OF THE dM4e STAR GJ 1243 by Silverberg, Steven M., Kowalski, Adam F., Davenport, James R. A., Wisniewski, John P., Hawley, Suzanne L., Hilton, Eric J.

“…ABSTRACT We present a comprehensive study of the active dM4e star GJ 1243. We use previous observations and ground-based echelle spectroscopy to determine that…”
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Apache Point Observatory (APO)/SMARTS Flare Star Campaign Observations. I. Blue Wing Asymmetries in Chromospheric Lines during Mid-M-Dwarf Flares from Simultaneous Spectroscopic and Photometric Observation Data by Notsu, Yuta, Kowalski, Adam F., Maehara, Hiroyuki, Namekata, Kosuke, Hamaguchi, Kenji, Enoto, Teruaki, Tristan, Isaiah I., Hawley, Suzanne L., Davenport, James R. A., Honda, Satoshi, Ikuta, Kai, Inoue, Shun, Namizaki, Keiichi, Nogami, Daisaku, Shibata, Kazunari

“…Abstract We conducted the time-resolved simultaneous optical spectroscopic and photometric observations of mid-M-dwarf flare stars YZ CMi, EV Lac, and AD Leo…”
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Searching the SN 1987A SETI Ellipsoid with TESS by Cabrales, Bárbara, Davenport, James R. A., Sheikh, Sofia, Croft, Steve, Siemion, Andrew P. V., Giles, Daniel, Cody, Ann Marie

“…Abstract The SETI Ellipsoid is a strategy for technosignature candidate selection that assumes that extraterrestrial civilizations who have observed a…”
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Simultaneous Multiwavelength Flare Observations of EV Lacertae by Paudel, Rishi R., Barclay, Thomas, Schlieder, Joshua E., Quintana, Elisa V., Gilbert, Emily A., Vega, Laura D., Youngblood, Allison, L. Silverstein, Michele, Osten, Rachel A., Tucker, Michael A., Huber, Daniel, Do, Aaron, Hamaguchi, Kenji, Mullan, D. J., Gizis, John E., Monsue, Teresa A., Colón, Knicole D., Boyd, Patricia T., Davenport, James R. A., Walkowicz, Lucianne

“…We present the first results of our ongoing project conducting simultaneous multiwavelength observations of flares on nearby active M dwarfs. We acquired data…”
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Every Data Point Counts: Stellar Flares as a Case Study of Atmosphere-aided Studies of Transients in the LSST Era by Clarke, Riley W., Davenport, James R. A., Gizis, John, Graham, Melissa L., Li, Xiaolong, Fortino, Willow, Honaker, Easton J., Sullivan, Ian, Alsayyad, Yusra, Bosch, James, Knop, Robert A., Bianco, Federica B.

“…Due to their short timescale, stellar flares are a challenging target for the most modern synoptic sky surveys. The upcoming Vera C. Rubin Legacy Survey of…”
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A Multiwavelength Survey of Nearby M Dwarfs: Optical and Near-ultraviolet Flares and Activity with Contemporaneous TESS, Kepler/K2, Swift, and HST Observations by Paudel, Rishi R., Barclay, Thomas, Youngblood, Allison, Quintana, Elisa V., Schlieder, Joshua E., Vega, Laura D., Gilbert, Emily A., Osten, Rachel A., Peacock, Sarah, Tristan, Isaiah I., Feliz, Dax L., Boyd, Patricia T., Davenport, James R. A., Huber, Daniel, Kowalski, Adam F., Monsue, Teresa, Silverstein, Michele L.

“…Abstract We present a comprehensive multiwavelength investigation into flares and activity in nearby M dwarf stars. We leverage the most extensive…”
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Catalog of Integrated-light Star Cluster Light Curves in TESS by Wainer, Tobin M., Zasowski, Gail, Pepper, Joshua, Wagg, Tom, Hedges, Christina L., Poovelil, Vijith Jacob, Fetherolf, Tara, Davenport, James R. A., Christodoulou, P. Marios, Dinsmore, Jack T., Patel, Avi, Goold, Kameron, Gibson, Benjamin J.

“…Abstract We present the first integrated-light, TESS-based light curves for star clusters in the Milky Way, Small Magellanic Cloud, and Large Magellanic Cloud…”
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CHARACTERIZING THE OPTICAL VARIABILITY OF BRIGHT BLAZARS: VARIABILITY-BASED SELECTION OF FERMI ACTIVE GALACTIC NUCLEI by RUAN, John J, ANDERSON, Scott F, SCOTT STUART, J, MACLEOD, Chelsea L, BECKER, Andrew C, BURNETT, T. H, DAVENPORT, James R. A, IVEZIC, Zeljko, KOCHANEK, Christopher S, PLOTKIN, Richard M, SESAR, Branimir

“…We investigate the use of optical photometric variability to select and identify blazars in large-scale time-domain surveys, in part to aid in the…”
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Death of a Cluster: The Destruction of M67 as Seen by the Sloan Digital Sky Survey by Davenport, James R. A, Sandquist, Eric L

“…We probe the spatial and dynamical structure of the old open cluster M67 using photometric data from the Sloan Digital Sky Survey's sixth data release. Making…”
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