Search Results - "Osten, Rachel"

Short-duration Stellar Flares in GALEX Data by Brasseur, C. E., Osten, Rachel A., Fleming, Scott W.

“…We report on a population of short-duration near-ultraviolet (NUV) flares in stars observed by the Kepler and Galaxy Evolution Explorer (GALEX) missions. We…”
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Constraints on Stellar Flare Energy Ratios in the NUV and Optical from a Multiwavelength Study of GALEX and Kepler Flare Stars by Brasseur, C. E., Osten, Rachel A., Tristan, Isaiah I., Kowalski, Adam F.

“…Abstract We present a multiwavelength study of stellar flares on primarily G-type stars using overlapping time domain surveys in the near-ultraviolet (NUV) and…”
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Properties of M Dwarf Flares at Millimeter Wavelengths by MacGregor, A. Meredith, Osten, Rachel A., Hughes, A. Meredith

“…We report on two millimeter flares detected by the Atacama Large Millimeter/submillimeter Array at 220 GHz from AU Mic, a nearby M dwarf. The larger flare had…”
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The Near-ultraviolet Continuum Radiation in the Impulsive Phase of HF/GF-type dMe Flares. I. Data by Kowalski, Adam F., Wisniewski, John P., Hawley, Suzanne L., Osten, Rachel A., Brown, Alexander, Fariña, Cecilia, Valenti, Jeff A., Brown, Stephen, Xilouris, Manolis, Schmidt, Sarah J., Johns-Krull, Christopher

“…We present near-UV (NUV) flare spectra from the Hubble Space Telescope (HST)/Cosmic Origins Spectrograph during two moderate-amplitude U-band flares on the…”
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First Millimeter Flares Detected from ϵ Eridani with the Atacama Large Millimeter/submillimeter Array by Burton, Kiana, MacGregor, Meredith A., Osten, Rachel A.

“…Abstract We report the detection of three large millimeter flaring events from the nearby Sun-like, ϵ Eridani, found in archival Atacama Large…”
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New Time-resolved, Multi-band Flares in the GJ 65 System with gPhoton by Fleming, Scott W., Million, Chase, Osten, Rachel A., Kolotkov, Dmitrii Y., Brasseur, C. E.

“…Abstract Characterizing the distribution of flare properties and occurrence rates is important for understanding habitability of M-dwarf exoplanets. The Galaxy…”
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A VERY BRIGHT, VERY HOT, AND VERY LONG FLARING EVENT FROM THE M DWARF BINARY SYSTEM DG CVn by Osten, Rachel A., Kowalski, Adam, Drake, Stephen A., Krimm, Hans, Page, Kim, Gazeas, Kosmas, Kennea, Jamie, Oates, Samantha, Page, Mathew, de Miguel, Enrique, Novák, Rudolf, Apeltauer, Tomas, Gehrels, Neil

“…ABSTRACT On 2014 April 23, the Swift satellite responded to a hard X-ray transient detected by its Burst Alert Telescope, which turned out to be a stellar…”
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Hydrogen Balmer Line Broadening in Solar and Stellar Flares by Kowalski, Adam F., Allred, Joel C., Uitenbroek, Han, Tremblay, Pier-Emmanuel, Brown, Stephen, Carlsson, Mats, Osten, Rachel A., Wisniewski, John P., Hawley, Suzanne L.

“…The broadening of the hydrogen lines during flares is thought to result from increased charge (electron, proton) density in the flare chromosphere. However,…”
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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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The Characteristics of Solar X-Class Flares and CMEs: A Paradigm for Stellar Superflares and Eruptions? by Harra, Louise K., Schrijver, Carolus J., Janvier, Miho, Toriumi, Shin, Hudson, Hugh, Matthews, Sarah, Woods, Magnus M., Hara, Hirohisa, Guedel, Manuel, Kowalski, Adam, Osten, Rachel, Kusano, Kanya, Lueftinger, Theresa

“…This paper explores the characteristics of 42 solar X-class flares that were observed between February 2011 and November 2014, with data from the Solar…”
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CONNECTING FLARES AND TRANSIENT MASS-LOSS EVENTS IN MAGNETICALLY ACTIVE STARS by Osten, Rachel A., Wolk, Scott J.

“…ABSTRACT We explore the ramification of associating the energetics of extreme magnetic reconnection events with transient mass-loss in a stellar analogy with…”
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The GFCAT: A Catalog of Ultraviolet Variables Observed by GALEX with Subminute Resolution by Million, Chase C., Clair, Michael St, Fleming, Scott W., Bianchi, Luciana, Osten, Rachel

“…Abstract We have performed the first systematic search of the full Galaxy Evolution Explorer (GALEX) data archive for astrophysical variability on timescales…”
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A 7 Day Multiwavelength Flare Campaign on AU Mic. I. High-time-resolution Light Curves and the Thermal Empirical Neupert Effect by Tristan, Isaiah I., Notsu, Yuta, Kowalski, Adam F., Brown, Alexander, Wisniewski, John P., Osten, Rachel A., Vrijmoet, Eliot H., White, Graeme L., Carter, Brad D., Grady, Carol A., Henry, Todd J., Hinojosa, Rodrigo H., Lomax, Jamie R., Neff, James E., Paredes, Leonardo A., Soutter, Jack

“…Abstract We present light curves and flares from a 7 day, multiwavelength observational campaign of AU Mic, a young and active dM1e star with exoplanets and a…”
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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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DRAFTS: A DEEP, RAPID ARCHIVAL FLARE TRANSIENT SEARCH IN THE GALACTIC BULGE by Osten, Rachel A, Kowalski, Adam, Sahu, Kailash, Hawley, Suzanne L

“…We utilize the Sagittarius Window Eclipsing Extrasolar Planet Search Hubble Space Telescope/Advanced Camera for Surveys data set for a Deep Rapid Archival…”
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Serendipitous discovery of radio flaring behaviour from a nearby M dwarf with MeerKAT by Andersson, Alex, Fender, Rob P, Lintott, Chris J, Williams, David R A, Driessen, Laura N, Woudt, Patrick A, van der Horst, Alexander J, Buckley, David A H, Motta, Sara E, Rhodes, Lauren, Eisner, Nora L, Osten, Rachel A, Vreeswijk, Paul, Bloemen, Steven, Groot, Paul J

“…ABSTRACT We report on the detection of MKT J174641.0−321404, a new radio transient found in untargeted searches of wide-field MeerKAT radio images centred on…”
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The Mouse That Roared: A Superflare from the dMe Flare Star EV Lac Detected by Swift and Konus-Wind by Osten, Rachel A, Godet, Olivier, Drake, Stephen, Tueller, Jack, Cummings, Jay, Krimm, Hans, Pye, John, Pal'shin, Valentin, Golenetskii, Sergei, Reale, Fabio, Oates, Samantha R, Page, Mat J, Melandri, Andrea

“…We report on a large stellar flare from the nearby dMe flare star EV Lac observed by the Swift and Konus-Wind satellites and the Liverpool Telescope. It is the…”
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Nonthermal Hard X-Ray Emission and Iron Kα Emission from a Superflare on II Pegasi by Osten, Rachel A, Drake, Stephen, Tueller, Jack, Cummings, Jay, Perri, Matteo, Moretti, Alberto, Covino, Stefano

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Ultrahigh Time Resolution Observations of Radio Bursts on AD Leonis by Osten, Rachel A, Bastian, T. S

“…We report observations of a radio burst that occurred on the flare star AD Leonis over a frequency range of 1120-1620 MHz ( lambda approximately 18-27 cm)…”
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Steady and Transient Radio Emission from Ultracool Dwarfs by Osten, Rachel A, Phan-Bao, N, Hawley, Suzanne L, Reid, I. Neill, Ojha, Roopesh

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