130 citations · 827 across the 19 of their papers we have counts for
19 papers
Parallel plasma loops and the energization of the solar corona
Hardi Peter, Lakshmi Pradeep Chitta, Feng Chen +15
The outer atmosphere of the Sun is composed of plasma heated to temperatures well in excess of the visible surface. We investigate short cool and warm (<1 MK) loops seen in the cor…
The drivers of active region outflows into the slow solar wind
David H. Brooks, Amy R. Winebarger, Sabrina Savage +13
Plasma outflows from the edges of active regions have been suggested as a possible source of the slow solar wind. Spectroscopic measurements show that these outflows have an enhanc…
Is the High-Resolution Coronal Imager Resolving Coronal Strands? Results from AR 12712
Thomas Williams, Robert W. Walsh, Amy R. Winebarger +14
Following the success of the first mission, the High-Resolution Coronal Imager (Hi-C) was launched for a third time (Hi-C 2.1) on 29th May 2018 from the White Sands Missile Range,…
Hi-C 2.1 Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lane
Navdeep K. Panesar, Alphonse C. Sterling, Ronald L. Moore +15
We present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-…
Fine-scale explosive energy release at sites of prospective magnetic flux cancellation in the core of the solar active region observed by Hi-C 2.1, IRIS and SDO
Sanjiv K. Tiwari, Navdeep K. Panesar, Ronald L. Moore +14
The second Hi-C flight (Hi-C2.1) provided unprecedentedly-high spatial and temporal resolution (250km, 4.4s) coronal EUV images of Fe IX/X emission at 172 Å, of AR 12712 on 2…
The High-Resolution Coronal Imager, Flight 2.1
Laurel A. Rachmeler, Amy R. Winebarger, Sabrina L. Savage +49
The third flight of the High-Resolution Coronal Imager (Hi-C 2.1) occurred on May 29, 2018, the Sounding Rocket was launched from White Sands Missile Range in New Mexico. The instr…
A Statistical Inference Method for Interpreting the CLASP Observations
J. Stepan, J. Trujillo Bueno, L. Belluzzi +25
On 3rd September 2015, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyman…
Discovery of Scattering Polarization in the Hydrogen Lyman- Line of the Solar Disk Radiation
R. Kano, J. Trujillo Bueno, A. Winebarger +25
There is a thin transition region (TR) in the solar atmosphere where the temperature rises from 10,000 K in the chromosphere to millions of degrees in the corona. Little is known a…
Babcock Redux: An Ammendment of Babcock's Schematic of the Sun's Magnetic Cycle
Ronald L. Moore, J. W. Cirtain, Alphonse C. Sterling
We amend Babcock's original scenario for the global dynamo process that sustains the Sun's 22-year magnetic cycle. The amended scenario fits post-Babcock observed features of the m…
On the Area Expansion of Magnetic Flux-Tubes in Solar Active Regions
Jaroslav Dudik, Elena Dzifcakova, Jonathan W. Cirtain
We calculated the 3D distribution of the area expansion factors in a potential magnetic field extrapolated from the high-resolution \textit{Hinode}/SOT magnetogram of a quiescent a…
Deciphering Solar Magnetic Activity I: On The Relationship Between The Sunspot Cycle And The Evolution Of Small Magnetic Features
Scott W. McIntosh, Xin Wang, Robert J. Leamon +6
Sunspots are a canonical marker of the Sun's internal magnetic field which flips polarity every ~22-years. The principal variation of sunspots, an ~11-year variation in number, mod…
Sparkling EUV bright dots observed with Hi-C
S. Regnier, C. E. Alexander, R. W. Walsh +12
Observing the Sun at high time and spatial scales is a step towards understanding the finest and fundamental scales of heating events in the solar corona. The Hi-C instrument has p…
Solar Eruptive Events (SEE) 2020 Mission Concept
R. P. Lin, A. Caspi, S. Krucker +20
Major solar eruptive events (SEEs), consisting of both a large flare and a near simultaneous large fast coronal mass ejection (CME), are the most powerful explosions and also the m…
Anti-parallel EUV flows observed along active region filament threads with Hi-C
Caroline E. Alexander, Robert W. Walsh, Stephane Regnier +12
Plasma flows within prominences/filaments have been observed for many years and hold valuable clues concerning the mass and energy balance within these structures. Previous observa…
Observing coronal nanoflares in active region moss
Paola Testa, Bart De Pontieu, Juan Martinez-Sykora +12
The High-resolution Coronal Imager (Hi-C) has provided Fe XII 193A images of the upper transition region moss at an unprecedented spatial (~0.3-0.4 arcsec) and temporal (5.5s) reso…
Hemispheric Asymmetries of Solar Photospheric Magnetism: Radiative, Particulate, and Heliospheric Impacts
Scott W. McIntosh, Robert J. Leamon, Joseph B. Gurman +7
Among many other measurable quantities the summer of 2009 saw a considerable low in the radiative output of the Sun that was temporally coincident with the largest cosmic ray flux…
Science Objectives for an X-Ray Microcalorimeter Observing the Sun
J. Martin Laming, J. Adams, D. Alexander +57
We present the science case for a broadband X-ray imager with high-resolution spectroscopy, including simulations of X-ray spectral diagnostics of both active regions and solar fla…
Are Coronal Loops Isothermal or Multithermal? Yes!
J. T. Schmelz, K. Nasraoui, L. A. Rightmire +5
Surprisingly few solar coronal loops have been observed simultaneously with TRACE and SOHO/CDS, and even fewer analyses of these loops have been conducted and published. The SOHO J…
Observations of Transient Active Region Heating with Hinode
Harry P. Warren, Ignacio Ugarte-Urra, David H. Brooks +3
We present observations of transient active region heating events observed with the Extreme Ultraviolet Imaging Spectrometer (EIS) and X-ray Telescope (XRT) on Hinode. This initial…