Zobrazeno 1 - 10
of 458
pro vyhledávání: '"Reardon, K"'
Autor:
Santos, J. M. da Silva, Molnar, M., Milić, I., Rempel, M., Reardon, K., Rodríguez, J. de la Cruz
Accurately assessing the balance between acoustic wave energy fluxes and radiative losses is critical for understanding how the solar chromosphere is thermally regulated. We investigate the energy balance in the chromosphere by comparing deposited ac
Externí odkaz:
http://arxiv.org/abs/2408.15908
Autor:
Kuridze, D., Uitenbroek, H., Wöger, F., Mathioudakis, M., Morgan, H., Campbell, R., Fischer, C., Cauzzi, G., Schad, T., Reardon, K., Santos, J. M. da Silva, Beck, C., Tritschler, A., Rimmele, T.
The strongly coupled hydrodynamic, magnetic, and radiation properties of the plasma in the solar chromosphere makes it a region of the Sun's atmosphere that is poorly understood. We use data obtained with the high-resolution Visible Broadband Imager
Externí odkaz:
http://arxiv.org/abs/2402.04545
Autor:
Santos, J. M. da Silva, Reardon, K., Cauzzi, G., Schad, T., Pillet, V. Martinez, Tritschler, A., Wöger, F., Hofmann, R., Stauffer, J., Uitenbroek, H.
Plage regions are patches of concentrated magnetic field in the Sun's atmosphere where hot coronal loops are rooted. While previous studies have shed light on the properties of plage magnetic fields in the photosphere, there are still challenges in m
Externí odkaz:
http://arxiv.org/abs/2308.10983
Autor:
Criscuoli, S., Bertello, L., Choudhary, D. P., DeLand, M., Kopp, G., Kowalski, A., Marchenko, S., Reardon, K., Pevtsov, A. A., Tilipman, D.
Long-term high-cadence measurements of stellar spectral variability are fundamental to better understand stellar atmospheric properties and stellar magnetism. These, in turn, are fundamental for the detectability of exoplanets as well as the characte
Externí odkaz:
http://arxiv.org/abs/2305.07676
Autor:
Pevtsov, Alexei A., Martinez-Pillet, V., Gilbert, H., de Wijn, A. G., Roth, M., Gosain, S., Upton, L. A., Katsukawa, Y., Burkepile, J., Zhang, Jie, Reardon, K. P., Bertello, L., Jain, K., Tripathy, S. C., Leka, K. D.
Long-term synoptic observations of the Sun are critical for advancing our understanding of Sun as an astrophysical object, understanding the solar irradiance and its role in solar-terrestrial climate, for developing predictive capabilities of solar e
Externí odkaz:
http://arxiv.org/abs/2211.06712
Autor:
Santos, J. M. da Silva, White, S. M., Reardon, K., Cauzzi, G., Gunár, S., Heinzel, P., Leenaarts, J.
Quiescent filaments appear as absorption features on the solar disk when observed in chromospheric lines and at continuum wavelengths in the millimeter (mm) range. Active region (AR) filaments are their small-scale, low-altitude analogues, but they c
Externí odkaz:
http://arxiv.org/abs/2204.13178
Autor:
Greco, V., Sordini, A., Cauzzi, G., Cavallini, F., Del Vecchio, C., Giovannelli, L., Berrilli, F., Del Moro, D., Reardon, K., Pietraszewski, K.
Large Fabry-Perot Interferometers are used in a variety of astronomical instrumentation, including spectro-polarimeters for 4-meter class solar telescopes. In this work we comprehensively characterize the cavity of a prototype 150 mm Fabry-Perot inte
Externí odkaz:
http://arxiv.org/abs/2112.02224
Publikováno v:
A&A 626, A43 (2019)
(Abridged): We define and test a new technique to accurately measure the cavity defects of air-spaced FPIs, including distortions due to the spectral tuning process typical of astronomical observations. We further develop a correction technique to ma
Externí odkaz:
http://arxiv.org/abs/1905.01393
Autor:
Reardon, K. P.
This work presents the results of instrumentation developments and scientific studies aimed at better probing the nature of the solar chromosphere. Indeed, the sources of the energy and mass to the chromosphere and corona (and the mechanisms by which
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680383
Publikováno v:
The Astrophysical Journal 826:61 (18 pp), 2016 July 20
The aim of this study is to explore the suitability of chromospheric images for magnetic modeling of active regions. We use high-resolution images (0.1") from the Interferometric Bidimensional Spectrometer (IBIS) in the Ca II 8542 A line, the Rapid O
Externí odkaz:
http://arxiv.org/abs/1602.02119