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341
Solar-MACH: An open-source tool to analyze solar magnetic connection configurations
Published 2023-02-01“…In close vicinity of the Sun, a Potential Field Source Surface (PFSS) model can be applied to connect the HMF to the solar photosphere. Solar-MACH is especially aimed at providing publication-ready figures for the analyses of Solar Energetic Particle events (SEPs) or solar transients such as Coronal Mass Ejections (CMEs). …”
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342
The Inner Disk Rim of HD 163296: Linking Radiative Hydrostatic Models with Infrared Interferometry
Published 2024-01-01“…We find that when the cooling efficiency is reduced, the infrared photosphere at the rim becomes hotter, leading to an increase in R _hl sufficient to match the observations. …”
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343
Magnetohydrodynamic Poynting Flux Vortices in the Solar Atmosphere and Their Role in Concentrating Energy
Published 2024-01-01“…This energy mapping reveals the presence of transport barriers in the lower atmosphere, restricting the amount of magnetic energy from the photosphere reaching the chromosphere and corona. Interacting kinematic and magnetic vortices create energy channels, breaking through these barriers and allowing three times more energy input from photospheric motions to reach the upper atmosphere than before the vortices formed. …”
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344
Numerical Modeling of the Physical Mechanism of Anomalous Heating of the Solar Atmosphere
Published 2020-03-01“…In model calculations, the temperature decreases monotonically from 5700 K at the photosphere level as the altitude increases, and the energy flow is formed due to the radiant and kinetic thermal conductivity. …”
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345
High-resolution Spectroscopy of SN 2023ixf’s First Week: Engulfing the Asymmetric Circumstellar Material
Published 2023-01-01“…We find that CSM lines disappear after a few days because the asymmetric CSM is engulfed by the supernova photosphere.…”
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346
YSOVAR: MID-INFRARED VARIABILITY IN NGC 1333
Published 2016“…This may mean that the periodic signal is primarily from the disk, not the photosphere, in those cases. We find 9 variables likely to be "dippers," where texture in the disk occults the central star, and 11 likely to be "bursters," where accretion instabilities create brightness bursts. …”
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347
YSOVAR: MID-INFRARED VARIABILITY AMONG YSOs IN THE STAR FORMATION REGION GGD12-15
Published 2016“…Most of the stars with IR excess relative to a photosphere show large amplitude (>0.1 mag) mid-infrared (mid-IR) variability. …”
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348
An HST/STIS Optical Transmission Spectrum of Warm Neptune GJ 436b
Published 2019“…Only the transit spectrum of GJ 1214b is well fit by a model with stellar plages on the photosphere of the host star. Our photometric monitoring of the host star reveals a stellar rotation rate of 44.1 days and an activity cycle of 7.4 years. …”
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349
Measuring the Temperature of Starspots from Multi-filter Photometry
Published 2023-01-01“…The contrast of the spot, i.e., the ratio of the integrated flux of a darker spot region to the star's photosphere, is calculated for a range of filters and spot temperatures. …”
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350
Can Proton Beam Heating Flare Models Explain Sunquakes?
Published 2023-01-01“…Solar Dynamics Observatory (SDO)/Helioseismic and Magnetic Imager (HMI) observations reveal a class of solar flares with substantial energy and momentum impacts in the photosphere, concurrent with white-light emission and helioseismic responses, known as sunquakes. …”
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351
COCONUT, a Novel Fast-converging MHD Model for Solar Corona Simulations. II. Assessing the Impact of the Input Magnetic Map on Space-weather Forecasting at Minimum of Activity
Published 2023-01-01“…We use all 20 available magnetic maps of the solar photosphere covering the date of 2019 July 2, which corresponds to a solar eclipse on Earth. …”
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352
Spectroscopic r-process Abundance Retrieval for Kilonovae. II. Lanthanides in the Inferred Abundance Patterns of Multicomponent Ejecta from the GW170817 Kilonova
Published 2024-01-01“…As expected from photometric modeling, this component emerges as the ejecta expands, the photosphere recedes, and the earlier bluer component dims. …”
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353
The Science of Sungrazers, Sunskirters, and Other Near-Sun Comets
Published 2018“…Finally, comets with orbits that intersect the solar photosphere are termed sundivers. We summarize past studies of these objects, as well as the instruments and facilities used to study them, including space-based platforms that have led to a recent revolution in the quantity and quality of relevant observations. …”
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354
NuSTAR OBSERVATION OF A TYPE I X-RAY BURST FROM GRS 1741.9-2853
Published 2015“…A bright, 800 s long, H-triggered mixed H/He thermonuclear Type I burst with mild photospheric radius expansion (PRE) was present during the second observation. …”
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355
The INSPIRESat-1: mission, science, and engineering
Published 2022“…Secondly, IS-1 aims to provide a greater understanding of why the Sun's corona is orders of magnitude hotter than the photosphere, why there is an abundance of elements change during different solar events, and how these events (observed with greater soft x-ray fidelity) affect the earth's ionosphere. …”
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356
The first post-Kepler brightness dips of KIC 8462852
Published 2018“…Therefore, our data are inconsistent with dip models that invoke optically thick material, but rather they are in-line with predictions for an occulter consisting primarily of ordinary dust, where much of the material must be optically thin with a size scale Lt1 μm, and may also be consistent with models invoking variations intrinsic to the stellar photosphere. Notably, our data do not place constraints on the color of the longer-term "secular" dimming, which may be caused by independent processes, or probe different regimes of a single process.…”
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357
Characterizing 3D Magnetic Structures in Sunspot Light Bridges
Published 2023-01-01“…We employed: (1) the high-spatial-resolution spectropolarimetric data obtained by the Near InfraRed Imaging Spectropolarimeter (NIRIS) of the 1.6 m Goode Solar Telescope (GST) for studying the magnetic structure at the photosphere, and (2) the nonlinear force-free field (NLFFF) models, extrapolated from both the photospheric magnetogram from GST/NIRIS and from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory, for studying the three-dimensional (3D) magnetic structure on a larger scale. …”
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358
Magnetic Fields in Solar Plage Regions: Insights from High-sensitivity Spectropolarimetry
Published 2023-01-01“…While previous studies have shed light on the properties of plage magnetic fields in the photosphere, there are still challenges in measuring the overlying chromospheric magnetic fields, which are crucial to understanding the overall heating and dynamics. …”
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359
Solar and auroral evidence for an intense recurrent geomagnetic storm during December in AD 1128
Published 2001-03-01“…</b>Magnetospheric physics (auroral phenomena; storms and substorms) – Solar physics, astrophysics and astronomy (photosphere and chromosphere)…”
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360
Assessing the Performance of the ADAPT and AFT Flux Transport Models Using In Situ Measurements from Multiple Satellites
Published 2024-01-01“…A key ingredient for these models is the input photospheric magnetic field map that provides the boundary condition for the coronal portion of many heliospheric models. …”
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