Search Results - "Ruffolo, David"

Variation in Path Lengths of Turbulent Magnetic Field Lines and Solar Energetic Particles by Sonsrettee, Wirin, Chuychai, Piyanate, Seripienlert, Achara, Tooprakai, Paisan, Sáiz, Alejandro, Ruffolo, David, Matthaeus, William H., Chhiber, Rohit

“…Abstract Modeling of time profiles of solar energetic particle (SEP) observations often considers transport along a large-scale magnetic field with a fixed…”
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Scale and Time Dependence of Alfvénicity in the Solar Wind as Observed by the Parker Solar Probe by Thepthong, Panisara, Pongkitiwanichakul, Peera, Ruffolo, David, Kieokaew, Rungployphan, Bandyopadhyay, Riddhi, Matthaeus, William H., Parashar, Tulasi N.

“…Abstract Alfvénicity is a well-known property, common in the solar wind, characterized by a high correlation between magnetic and velocity fluctuations. Data…”
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Variations in the Inferred Cosmic-Ray Spectral Index as Measured by Neutron Monitors in Antarctica by Muangha, Pradiphat, Ruffolo, David, Sáiz, Alejandro, Banglieng, Chanoknan, Evenson, Paul, Seunarine, Surujhdeo, Oh, Suyeon, Jung, Jongil, Duldig, Marc L., Humble, John E.

“…Abstract A technique has recently been developed for tracking short-term spectral variations in Galactic cosmic rays (GCRs) using data from a single neutron…”
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Ab initio calculation of high pressure phases and electronic properties of CuInSe2 by Pluengphon, Prayoonsak, Bovornratanaraks, Thiti, Vannarat, Sornthep, Yoodee, Kajornyod, Ruffolo, David, Pinsook, Udomsilp

“…We used an ab initio method to calculate the high pressure phases of CuInSe2. By using the experimentally suggested phases, the enthalpy difference showed that…”
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Relativistic solar neutrons and protons on 28 October 2003 by Bieber, John W., Clem, John, Evenson, Paul, Pyle, Roger, Ruffolo, David, Sáiz, Alejandro

“…The solar cosmic ray event associated with the X17.2 class flare of 28 October 2003 was unusual in several respects: (1) Several high‐latitude neutron monitors…”
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Queering Child/Hood Policies: Canadian Examples and Perspectives by Ruffolo, David V.

“…This article examines how notions of ‘child’ and ‘childhood’ are produced in relation to recent early childhood policies in Ontario, Canada. It centers on an…”
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Extended Cosmic Ray Decreases with Strong Anisotropy after Passage of Interplanetary Shocks by Buatthaisong, Nutthawara, Ruffolo, David, Sáiz, Alejandro, Banglieng, Chanoknan, Mitthumsiri, Warit, Nutaro, Tanin, Nuntiyakul, Waraporn

“…Abstract The passage of an interplanetary shock and/or interplanetary coronal mass ejection often causes a rapid decrease in the Galactic cosmic-ray (GCR)…”
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Role of Parallel Solenoidal Electric Field on Energy Conversion in 2.5D Decaying Turbulence with a Guide Magnetic Field by Pongkitiwanichakul, Peera, Ruffolo, David, Guo, Fan, Du, Senbei, Suetrong, Piyawat, Yannawa, Chutima, Makwana, Kirit, Malakit, Kittipat

“…Abstract We perform 2.5D particle-in-cell simulations of decaying turbulence in the presence of a guide (out-of-plane) background magnetic field. The…”
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Local modulation and trapping of energetic particles by coherent magnetic structures by Tessein, Jeffrey A., Ruffolo, David, Matthaeus, William H., Wan, Minping

“…Recent observational studies show strong statistical associations between features of interplanetary suprathermal energetic particle (EP) data and rapid…”
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Random Walk and Trapping of Interplanetary Magnetic Field Lines: Global Simulation, Magnetic Connectivity, and Implications for Solar Energetic Particles by Chhiber, Rohit, Ruffolo, David, Matthaeus, William H., Usmanov, Arcadi V., Tooprakai, Paisan, Chuychai, Piyanate, Goldstein, Melvyn L.

“…Abstract The random walk of magnetic field lines is an important ingredient in understanding how the connectivity of the magnetic field affects the spatial…”
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Domains of Magnetic Pressure Balance in Parker Solar Probe Observations of the Solar Wind by Ruffolo, David, Ngampoopun, Nawin, Bhora, Yash R., Thepthong, Panisara, Pongkitiwanichakul, Peera, Matthaeus, William H., Chhiber, Rohit

“…Abstract The Parker Solar Probe (PSP) spacecraft is performing the first in situ exploration of the solar wind within 0.2 au of the Sun. Initial observations…”
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EFFECT OF COHERENT STRUCTURES ON ENERGETIC PARTICLE INTENSITY IN THE SOLAR WIND AT 1 AU by Tessein, Jeffrey A., Ruffolo, David, Matthaeus, William H., Wan, Minping, Giacalone, Joe, Neugebauer, Marcia

“…ABSTRACT We present results from an analysis of Advanced Composition Explorer (ACE) observations of energetic particles in the 0.047-4.78 MeV range associated…”
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The Alfvén transition zone observed by the Parker Solar Probe in young solar wind – global properties and model comparisons by Chhiber, Rohit, Pecora, Francesco, Usmanov, Arcadi V, Matthaeus, William H, Goldstein, Melvyn L, Roy, Sohom, Wang, Jiaming, Thepthong, Panisara, Ruffolo, David

“…ABSTRACT The transition from subAlfvénic to superAlfvénic flow in the solar atmosphere is examined by means of Parker Solar Probe (PSP) measurements during…”
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Ion Acceleration in Driven Magnetic Reconnection during High-energy–Density Plasma Interaction by Pongkitiwanichakul, Peera, Fox, William, Ruffolo, David, Malakit, Kittipat, Lezhnin, Kirill V., Matteucci, Jack, Bhattacharjee, Amitava

“…Abstract Strongly driven magnetic reconnection occurs in astrophysical events and also in laboratory experiments with laser-produced plasma. We have performed…”
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Distinct Pattern of Solar Modulation of Galactic Cosmic Rays above a High Geomagnetic Cutoff Rigidity by Mangeard, Pierre-Simon, Clem, John, Evenson, Paul, Pyle, Roger, Mitthumsiri, Warit, Ruffolo, David, Sáiz, Alejandro, Nutaro, Tanin

“…Solar modulation refers to Galactic cosmic-ray variations with the ∼11 yr sunspot cycle and ∼22 yr solar magnetic cycle and is relevant to the space radiation…”
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Anisotropic Forbush decrease of 24 March 2024: First look by Mishev, Alexander, Larsen, Nicholas, Asvestari, Eleanna, Sáiz, Alejandro, Ann Shea, Margaret, Strauss, Du Toit, Ruffolo, David, Banglieng, Chanoknan, Seunarine, Surujhdeo, Duldig, Marc L., Gil, Agnieszka, Blanco, Juan José, García-Población, Oscar, Cervino-Solana, Pablo, Adams, Jr, James H., Usoskin, Ilya

“…A strong Forbush decrease, i.e., suppression of the flux of galactic cosmic rays recorded on Earth, was observed by the global network of ground-based neutron…”
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Effects of a Guide Field on the Larmor Electric Field and Upstream Electron Temperature Anisotropy in Collisionless Asymmetric Magnetic Reconnection by Ek-In, Surapat, Malakit, Kittipat, Ruffolo, David, Shay, Michael A., Cassak, Paul A.

“…We perform the first study of the properties of the Larmor electric field (LEF) in collisionless asymmetric magnetic reconnection in the presence of an…”
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Queering the “I” in academic discourse: Re/visioning agency for an equitable future by Ruffolo, David Vincent

“…The vision of an equitable, not equal future is a queer ambition. This thesis challenges (hetero)normative ideologies that further minoritize the minoritized…”
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Multi-spectral optical imaging of the spatiotemporal dynamics of ionospheric intermittent turbulence by Chian, Abraham C.-L., Abalde, José R., Miranda, Rodrigo A., Borotto, Felix A., Hysell, David L., Rempel, Erico L., Ruffolo, David

“…Equatorial plasma depletions have significant impact on radio wave propagation in the upper atmosphere, causing rapid fluctuations in the power of radio…”
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On the Estimation of Solar Energetic Particle Injection Timing from Onset Times near Earth by Sáiz, Alejandro, Evenson, Paul, Ruffolo, David, Bieber, John W

“…We examine the accuracy of a common technique for estimating the start time of solar energetic particle injection based on a linear fit to the observed onset…”
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