Search Results - "Wisniewski, John P."

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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Peter Pan Disks: Long-lived Accretion Disks Around Young M Stars by Silverberg, Steven M., Wisniewski, John P., Kuchner, Marc J., Lawson, Kellen D., Bans, Alissa S., Debes, John H., Biggs, Joseph R., Bosch, Milton K. D., Doll, Katharina, Luca, Hugo A. Durantini, Enachioaie, Alexandru, Hamilton, Joshua, Holden, Jonathan, Hyogo, Michiharu

“…WISEA J080822.18-644357.3, an M star in the Carina association, exhibits extreme infrared excess and accretion activity at an age greater than the expected…”
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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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Wavelength-dependent Extinction and Grain Sizes in “Dippers” by Sitko, Michael L., Russell, Ray W., Long, Zachary C., Assani, Korash, Pikhartova, Monika, Bayyari, Ammar, Grady, Carol A., Lisse, Carey M., Marengo, Massimo, Wisniewski, John P., Danchi, William C.

“…Abstract We have examined internight variability of K2-discovered “dippers” that are not close to being viewed edge-on, as determined from previously reported…”
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Differences in the Gas and Dust Distribution in the Transitional Disk of a Sun-like Young Star, PDS 70 by Long, Zachary C., Akiyama, Eiji, Sitko, Michael, Fernandes, Rachel B., Assani, Korash, Grady, Carol A., Cure, Michel, Danchi, William C., Dong, Ruobing, Fukagawa, Misato, Hasegawa, Yasuhiro, Hashimoto, Jun, Henning, Thomas, Inutsuka, Shu-Ichiro, Kraus, Stefan, Kwon, Jungmi, Lisse, Carey M., Liu, Hauyu Baobabu, Mayama, Satoshi, Muto, Takayuki, Nakagawa, Takao, Takami, Michihiro, Tamura, Motohide, Currie, Thayne, Wisniewski, John P., Yang, Yi

“…We present ALMA 0.87 mm continuum, HCO+ J = 4-3 emission line, and CO J = 3-2 emission line data of the disk of material around the young, Sun-like star PDS…”
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Disk Illumination and Jet Variability of the Herbig Ae Star HD 163296 Using Multi-epoch HST/STIS Optical, Near-IR, and Radio Imagery and Spectroscopy by Rich, Evan A., Wisniewski, John P., Sitko, Michael L., Grady, Carol A., Tobin, John J., Fukagawa, Misato

“…We present two new epochs of Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph coronagraphic imaging, along with multi-epoch optical, near-IR,…”
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SCExAO/CHARIS High-contrast Imaging of Spirals and Darkening Features in the HD 34700 A Protoplanetary Disk by Uyama, Taichi, Currie, Thayne, Christiaens, Valentin, Bae, Jaehan, Muto, Takayuki, Takahashi, Sanemichi Z., Tazaki, Ryo, Ygouf, Marie, Kasdin, Jeremy N., Groff, Tyler, Brandt, Timothy D., Chilcote, Jeffrey, Hayashi, Masahiko, McElwain, Michael W., Guyon, Olivier, Lozi, Julien, Jovanovic, Nemanja, Martinache, Frantz, Kudo, Tomoyuki, Tamura, Motohide, Akiyama, Eiji, Beichman, Charles A., Grady, Carol A., Knapp, Gillian R., Kwon, Jungmi, Sitko, Michael, Takami, Michihiro, Wagner, Kevin R., Wisniewski, John P., Yang, Yi

“…We present Subaru/SCExAO+Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS) broadband (JHK-band) integral field spectroscopy of HD 34700 A…”
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SCExAO/CHARIS Near-infrared Integral Field Spectroscopy of the HD 15115 Debris Disk by Lawson, Kellen, Currie, Thayne, Wisniewski, John P., Tamura, Motohide, Schneider, Glenn, Augereau, Jean-Charles, Brandt, Timothy D., Guyon, Olivier, Kasdin, N. Jeremy, Groff, Tyler D., Lozi, Julien, Hodapp, Klaus, Jovanovic, Nemanja, Martinache, Frantz, Skaf, Nour, Akiyama, Eiji, Henning, Thomas, Knapp, Gillian R., Kwon, Jungmi, Mayama, Satoshi, McElwain, Michael W., Sitko, Michael L., Asensio-Torres, Ruben, Uyama, Taichi, Wagner, Kevin

“…We present new, near-infrared (1.1–2.4 μm) high-contrast imaging of the debris disk around HD 15115 with the Subaru Coronagraphic Extreme Adaptive Optics…”
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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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Measuring the Temperature of Starspots from Multi-filter Photometry by Schutte, Maria C., Hebb, Leslie, Wisniewski, John P., Cañas, Caleb I., Libby-Roberts, Jessica E., Lin, Andrea S. J., Robertson, Paul, Stefánsson, Gumundur

“…Abstract Using simultaneous multi-filter observations during the transit of an exoplanet around a K dwarf star, we determine the temperature of a starspot…”
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Chandra Observations of Six Peter Pan Disks: Diversity of X-Ray-driven Internal Photoevaporation Rates Does Not Explain Their Rare Longevity by Laos, Emily, Wisniewski, John P., Kuchner, Marc J., Silverberg, Steven M., Günther, Hans Moritz, Principe, David A., Bonine, Brett, Kounkel, Marina

“…We present Chandra X-ray observations of six previously identified Peter Pan objects, rare ∼40 Myr systems with evidence of primordial disk retention. We…”
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JWST/NIRCam Coronagraphy of the Young Planet-hosting Debris Disk AU Microscopii by Lawson, Kellen, Schlieder, Joshua E., Leisenring, Jarron M., Bogat, Ell, Beichman, Charles A., Bryden, Geoffrey, Gáspár, András, Groff, Tyler D., McElwain, Michael W., Meyer, Michael R., Barclay, Thomas, Calissendorff, Per, De Furio, Matthew, Ygouf, Marie, Boccaletti, Anthony, Greene, Thomas P., Krist, John, Plavchan, Peter, Rieke, Marcia J., Roellig, Thomas L., Stansberry, John, Wisniewski, John P., Young, Erick T.

“…Abstract High-contrast imaging of debris disk systems permits us to assess the composition and size distribution of circumstellar dust, to probe recent…”
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The Shadow Knows: Using Shadows to Investigate the Structure of the Pretransitional Disk of HD 100453 by Long, Zachary C., Fernandes, Rachel B., Sitko, Michael, Wagner, Kevin, Muto, Takayuki, Hashimoto, Jun, Follette, Katherine, Grady, Carol A., Fukagawa, Misato, Hasegawa, Yasuhiro, Kluska, Jacques, Kraus, Stefan, Mayama, Satoshi, McElwain, Michael W., Oh, Daehyon, Tamura, Motohide, Uyama, Taichi, Wisniewski, John P., Yang, Yi

“…We present Gemini Planet Imager polarized intensity imagery of HD 100453 in Y, J, and K1 bands that reveals an inner gap (9-18 au), an outer disk (18-39 au)…”
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Monitoring Inner Regions in the RY Tau Jet by Uyama, Taichi, Takami, Michihiro, Cugno, Gabriele, Deo, Vincent, Guyon, Olivier, Hashimoto, Jun, Lozi, Julien, Norris, Barnaby, Tamura, Motohide, Vievard, Sebastien, Günther, Hans Moritz, Schneider, P. Christian, Akiyama, Eiji, Beck, Tracy L., Currie, Thayne, Hodapp, Klaus, Kwon, Jungmi, Mayama, Satoshi, Ohyama, Youichi, Pyo, Tae-Soo, Wisniewski, John P.

“…Abstract We present multiepoch observations of the RY Tau jet for H α and [Fe ii ] 1.644 μ m emission lines obtained with the Subaru Coronagraphic Extreme-AO…”
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THE MOVING GROUP TARGETS OF THE SEEDS HIGH-CONTRAST IMAGING SURVEY OF EXOPLANETS AND DISKS: RESULTS AND OBSERVATIONS FROM THE FIRST THREE YEARS by Brandt, Timothy D, Kuzuhara, Masayuki, McElwain, Michael W, Schlieder, Joshua E, Wisniewski, John P, Turner, Edwin L, Carson, J, Matsuo, T, Biller, B, Bonnefoy, M

“…We present results from the first three years of observations of moving group (MG) targets in the Strategic Exploration of Exoplanets and Disks with Subaru…”
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Variability of Disk Emission in Pre-main-sequence and Related Stars. IV. Investigating the Structural Changes in the Inner Disk Region of MWC 480 by Fernandes, Rachel B., Long, Zachary C., Pikhartova, Monika, Sitko, Michael L., Grady, Carol A., Russell, Ray W., Luria, David M., Tyler, Dakotah B., Bayyari, Ammar, Danchi, William, Wisniewski, John P.

“…We present five epochs of near-IR observations of the protoplanetary disk around MWC 480 (HD 31648) obtained with the SpeX spectrograph on NASA's Infrared…”
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TOI-4201: An Early M Dwarf Hosting a Massive Transiting Jupiter Stretching Theories of Core Accretion by Delamer, Megan, Kanodia, Shubham, Cañas, Caleb I., Müller, Simon, Helled, Ravit, Lin, Andrea S. J., Libby-Roberts, Jessica E., Gupta, Arvind F., Mahadevan, Suvrath, Teske, Johanna, Butler, R. Paul, Yee, Samuel W., Crane, Jeffrey D., Shectman, Stephen, Osip, David, Beletsky, Yuri, Monson, Andrew, Hebb, Leslie, Powers, Luke C., Wisniewski, John P., Alvarado-Montes, Jaime A., Bender, Chad F., Dong, Jiayin, Han, Te, Ninan, Joe P., Robertson, Paul, Roy, Arpita, Schwab, Christian, Stefánsson, Guđmundur, Wright, Jason T.

“…Abstract We confirm TOI-4201 b as a transiting Jovian-mass planet orbiting an early M dwarf discovered by the Transiting Exoplanet Survey Satellite. Using…”
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UV Spectropolarimetry With Polstar: Protoplanetary Disks by Wisniewski, John P, Berdyugin, Andrei V, Berdyugina, Svetlana V, Danchi, William C, Dong, Ruobing, Oudmaijer, René D, Airapetian, Vladimir, Brittain, Sean D, Gayley, Ken, Ignace, Richard, Langlois, Maude, Lawson, Kellen D, Lomax, Jamie R, Rich, Evan A, Tamura, Motohide, Vink, Jorick S, Scowen, Paul A

“…Polstar is a proposed NASA MIDEX mission that carries a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60 cm…”
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The HD 163296 Circumstellar Disk in Scattered Light: Evidence of Time-Variable Self-Shadowing by Wisniewski, John P, Clampin, Mark, Grady, Carol A, Ardila, David R, Ford, Holland C, Golimowski, David A, Illingworth, Garth D, Krist, John E

“…We present the first multicolor view of the scattered light disk of the Herbig Ae star HD 163296, based on coronagraphic observations from the Hubble Space…”
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KEPLER FLARES. I. ACTIVE AND INACTIVE M DWARFS by Hawley, Suzanne L, Davenport, James R A, Kowalski, Adam F, Wisniewski, John P, Hebb, Leslie, Deitrick, Russell, Hilton, Eric J

“…We analyzed Kepler short-cadence M dwarf observations. Spectra from the Astrophysical Research Consortium 3.5 m telescope identify magnetically active (H alpha…”
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