Zobrazeno 1 - 10
of 1 200
pro vyhledávání: '"Warren, Harry A."'
Autor:
Brooks, David H., Warren, Harry P., Baker, Deborah, Matthews, Sarah A., Yardley, Stephanie L.
Plasma composition measurements are a vital tool for the success of current and future solar missions, but density and temperature insensitive spectroscopic diagnostic ratios are sparse, and their underlying accuracy in determining the magnitude of t
Externí odkaz:
http://arxiv.org/abs/2410.15606
Autor:
Yu, Xixi, Kashyap, Vinay L., Del Zanna, Giulio, van Dyk, David A., Stenning, David C., Ballance, Connor P., Warren, Harry P.
We estimate the coronal density of Capella using the O VII and Fe XVII line systems in the soft X-ray regime that have been observed over the course of the Chandra mission. Our analysis combines measures of error due to uncertainty in the underlying
Externí odkaz:
http://arxiv.org/abs/2404.10427
Observations the Sun's photospheric magnetic field are often confined to the Sun-Earth line. Surface flux transport (SFT) models, such as the Advective Flux Transport (AFT) model, simulate the evolution of the photospheric magnetic field to produce m
Externí odkaz:
http://arxiv.org/abs/2404.04280
Autor:
Knizhnik, Kalman J., Weberg, Micah J., Provornikova, Elena, Warren, Harry P., Linton, Mark G., Shaik, Shaheda Begum, Ko, Yuan-Kuen, Schonfeld, Samuel J., Ugarte-Urra, Ignacio, Upton, Lisa A.
The launches of Parker Solar Probe (Parker) and Solar Orbiter (SolO) are enabling a new era of solar wind studies that track the solar wind from its origin at the photosphere, through the corona, to multiple vantage points in the inner heliosphere. A
Externí odkaz:
http://arxiv.org/abs/2402.10432
Autor:
Mondal, Biswajit, Athiray, P. S., Winebarger, Amy R., Savage, Sabrina L., Kobayashi, Ken, Bradshaw, Stephen, Barnes, Will, Champey, Patrick R., Cheimets, Peter, Dudik, Jaroslav, Golub, Leon, Mason, Helen E., McKenzie, David E., Moore, Christopher S., Madsen, Chad, Reeves, Katharine K., Testa, Paola, Vigil, Genevieve D., Warren, Harry P., Walsh, Robert W., Del Zanna, Giulio
Nanoflares are thought to be one of the prime candidates that can heat the solar corona to its multi-million kelvin temperature. Individual nanoflares are difficult to detect with the present generation instruments, however their presence can be infe
Externí odkaz:
http://arxiv.org/abs/2402.05036
Autor:
Brooks, David H., Reep, Jeffrey W., Ugarte-Urra, Ignacio, Unverferth, John E., Warren, Harry P.
A significant impediment to solving the coronal heating problem is that we currently only observe active region (AR) loops in their cooling phase. Previous studies showed that the evolution of cooling loop densities and apex temperatures are insensit
Externí odkaz:
http://arxiv.org/abs/2401.04537
Autor:
Woods, Thomas N., Schwab, Bennet, Sewell, Robert, Kandala, Anant Kumar Telikicherla, Mason, James Paul, Caspi, Amir, Eden, Thomas, Chandran, Amal, Chamberlin, Phillip C., Jones, Andrew R., Kohnert, Richard, Moore, Christopher S., Solomon, Stanley C., Warren, Harry
Publikováno v:
The Astrophysical Journal, Vol. 956, Issue 2, 94 (14pp); 2023 October 11
Three generations of the Miniature X-ray Solar Spectrometer (MinXSS) have flown on small satellites with the goal "to explore the energy distribution of soft X-ray (SXR) emissions from the quiescent Sun, active regions, and during solar flares, and t
Externí odkaz:
http://arxiv.org/abs/2307.01440
We assess the on-orbit performance of the flare event trigger for the Hinode EUV Imaging Spectrometer. Our goal is to understand the time-delay between the occurrence of a flare, as defined by a prompt rise in soft X-ray emission, and the initiation
Externí odkaz:
http://arxiv.org/abs/2303.13155
Autor:
Savage, Sabrina L., Winebarger, Amy R., Kobayashi, Ken, Athiray, P. S., Beabout, Dyana, Golub, Leon, Walsh, Robert W., Beabout, Brent, Bradshaw, Stephen, Bruccoleri, Alexander R., Champey, Patrick R., Cheimets, Peter, Cirtain, Jonathan, DeLuca, Edward, Del Zanna, Giulio, Guillory, Anthony, Haight, Harlan, Heilmann, Ralf K., Hertz, Edward, Hogue, William, Kegley, Jeffery, Kolodziejczak, Jeffery, Madsen, Chad, Mason, Helen, McKenzie, David E., Ranganathan, Jagan, Reeves, Katharine K., Robertson, Bryan, Schattenburg, Mark L., Scholvin, Jorg, Siler, Richard, Testa, Paola, Vigil, Genevieve D., Warren, Harry P., Watkinson, Bejamin, Weddendorf, Bruce, Wright, Ernest
The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) sounding rocket experiment launched on July 30, 2021 from the White Sands Missile Range in New Mexico. MaGIXS is a unique solar observing telescope developed to capture X-ray spectral images,
Externí odkaz:
http://arxiv.org/abs/2212.00665
Autor:
Brooks, David H., Janvier, Miho, Baker, Deborah, Warren, Harry P., Auchère, Frédéric, Carlsson, Mats, Fludra, Andrzej, Hassler, Don, Peter, Hardi, Müller, Daniel, Williams, David R., Cuadrado, Regina Aznar, Barczynski, Krzysztof, Buchlin, Eric, Caldwell, Martin, Fredvik, Terje, Giunta, Alessandra, Grundy, Tim, Guest, Steve, Haberreiter, Margit, Harra, Louise, Leeks, Sarah, Parenti, Susanna, Pelouze, Gabriel, Plowman, Joseph, Schmutz, Werner, Schuehle, Udo, Sidher, Sunil, Teriaca, Luca, Thompson, William T., Young, Peter R.
A key goal of the Solar Orbiter mission is to connect elemental abundance measurements of the solar wind enveloping the spacecraft with EUV spectroscopic observations of their solar sources, but this is not an easy exercise. Observations from previou
Externí odkaz:
http://arxiv.org/abs/2210.08899