Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Schad, T."'
Autor:
Schad, T. A., Fehlmann, A., Dima, G. I., Kuhn, J. R., Scholl, I. F., Harrington, D., Rimmele, T., Tritschler, A., Paraschiv, A. R.
We report commissioning observations of the Si X 1430 nm solar coronal line observed coronagraphically with the Cryogenic Near-Infrared Spectropolarimeter (Cryo-NIRSP) at the National Science Foundation's Daniel K. Inouye Solar Telescope (DKIST). The
Externí odkaz:
http://arxiv.org/abs/2402.09632
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:
Campbell, Ryan J., Keys, P H., Mathioudakis, M., Woeger, F., Schad, T. A., Tritschler, A., de Wijn, A. G., Smitha, H. N., Beck, C. A., Christian, D J., Jess, D. B., Erdelyi, R.
We present the first quiet Sun spectropolarimetric observations obtained with the Visible SpectroPolarimeter (ViSP) at the $4-$m Daniel K. Inouye Solar Telescope (DKIST). We recorded observations in a wavelength range that includes the magnetically s
Externí odkaz:
http://arxiv.org/abs/2309.05836
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
We analyze spectropolarimetric observations of the chromospheric Ca II 8542 A line taken by the Interferometric Bidimensional Spectrometer (IBIS) at the Dunn Solar Telescope. The data were observed on 2012 January 29 for the NOAA active region 11408.
Externí odkaz:
http://arxiv.org/abs/1712.06829
Autor:
Schad, T. A.
Publikováno v:
Solar Physics, Volume 289, Issue 5, pp.1477-1498 (2014)
We study 7530 sunspot umbrae and pores measured by the Hinode Spectropolarimeter (SP) between November 2006 and November 2012. We primarily seek confirmation of the long term secular decrease in the mean magnetic field strength of sunspot umbrae foun
Externí odkaz:
http://arxiv.org/abs/1505.05581
Advanced inversions of high-resolution spectropolarimetric observations of the He I triplet at 1083 nm are used to generate unique maps of the chromospheric magnetic field vector across a sunspot and its superpenumbral canopy. The observations were a
Externí odkaz:
http://arxiv.org/abs/1505.05567
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Atomic-level polarization and Zeeman effect diagnostics in the neutral helium triplet at 10830 angstroms in principle allow full vector magnetometry of fine-scaled chromospheric fibrils. We present high-resolution spectropolarimetric observations of
Externí odkaz:
http://arxiv.org/abs/1303.4463
We present a pattern-recognition based approach to the problem of removal of polarized fringes from spectro-polarimetric data. We demonstrate that 2D Principal Component Analysis can be trained on a given spectro-polarimetric map in order to identify
Externí odkaz:
http://arxiv.org/abs/1208.5104