Search Results - "Dammasch, I."

Observation of a Flare and Filament Eruption in Lyman-α on 8 September 2011 by the PRoject for OnBoard Autonomy/Large Yield Radiometer (PROBA2/LYRA) by Wauters, L., Dominique, M., Milligan, R., Dammasch, I. E., Kretzschmar, M., Machol, J.

“…The Large Yield Radiometer (LYRA) instrument onboard the PRoject for OnBoard Autonomy (PROBA2) observes the solar irradiance in four channels in the UV–EUV…”
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Correction to: Observation of a Flare and Filament Eruption in Lyman-α on 8 September 2011 by the PRoject for OnBoard Autonomy/Large Yield Radiometer (PROBA2/LYRA) by Wauters, L., Dominique, M., Milligan, R., Dammasch, I. E., Kretzschmar, M., Machol, J.

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Sun-as-a-Star Observation of Flares in Lyman α by the PROBA2/LYRA Radiometer by Kretzschmar, M., Dominique, M., Dammasch, I. E.

“…There are very few reports of flare signatures in the solar irradiance at H i Lyman α at 121.5 nm, i.e. the strongest line of the solar spectrum. The LYRA…”
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The LYRA Instrument Onboard PROBA2: Description and In-Flight Performance by Dominique, M., Hochedez, J.-F., Schmutz, W., Dammasch, I. E., Shapiro, A. I., Kretzschmar, M., Zhukov, A. N., Gillotay, D., Stockman, Y., BenMoussa, A.

“…The Large Yield Radiometer (LYRA) is an XUV–EUV–MUV (soft X-ray to mid-ultraviolet) solar radiometer onboard the European Space Agency Project for On-Board…”
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LYRA Mid-Term Periodicities by Wauters, L., Dominique, M., Dammasch, I. E.

“…The spectra of the PROBA2/LYRA data, similarly to every other solar time series, show predominant periodicities that can be of solar or instrumental origin. In…”
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Doppler Shift Oscillations of Hot Solar Coronal Plasma Seen by SUMER: A Signature of Loop Oscillations? by Wang, Tongjiang, Solanki, S. K, Curdt, W, Innes, D. E, Dammasch, I. E

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Correlated Dynamics of Hot and Cool Plasmas in the Main Phase of a Solar Flare by Kliem, B, Dammasch, I. E, Curdt, W, Wilhelm, K

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REDSHIFTS, WIDTHS, AND RADIANCES OF SPECTRAL LINES EMITTED BY THE SOLAR TRANSITION REGION by FELDMAN, U, DAMMASCH, I. E, DOSCHEK, G. A

“…A long-standing problem in understanding the physics of the transition region has been the ubiquitous redshifts of transition region ultraviolet spectral lines…”
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The Emission Measure of the Solar Lower Transition Region (2 × 104-2 × 105 K) by Feldman, U, Dammasch, I. E, Landi, E

“…We analyze Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectra in the 750-790 A wavelength range from 12 different solar regions on the disk to…”
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The redshifted footpoints of coronal loops by DAMMASCH, I. E, CURDT, W, DWIVEDI, B. N, PARENTI, S

“…The physics of coronal loops holds the key to understanding coronal heating and the flow of mass and energy in the region. However, the energy source,…”
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Detection of Solar Rotational Variability in the Large Yield RAdiometer (LYRA) 190 – 222 nm Spectral Band by Shapiro, A. V., Shapiro, A. I., Dominique, M., Dammasch, I. E., Wehrli, C., Rozanov, E., Schmutz, W.

“…We analyze the variability of the spectral solar irradiance during the period from 7 January 2010 until 20 January 2010 as measured by the Herzberg channel…”
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The Projects for Onboard Autonomy (PROBA2) Science Centre: Sun Watcher Using APS Detectors and Image Processing (SWAP) and Large-Yield Radiometer (LYRA) Science Operations and Data Products by Zender, J., Berghmans, D., Bloomfield, D. S., Cabanas Parada, C., Dammasch, I., De Groof, A., D’Huys, E., Dominique, M., Gallagher, P., Giordanengo, B., Higgins, P. A., Hochedez, J.-F., Yalim, M. S., Nicula, B., Pylyser, E., Sanchez-Duarte, L., Schwehm, G., Seaton, D. B., Stanger, A., Stegen, K., Willems, S.

“…The PROBA2 Science Centre (P2SC) is a small-scale science operations centre supporting the Sun observation instruments onboard PROBA2: the EUV imager Sun…”
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Degradation assessment of LYRA after 5 years on orbit - Technology Demonstration by BenMoussa, A., Giordanengo, B., Gissot, S., Dammasch, I. E., Dominique, M., Hochedez, J.-F., Soltani, A., Bourzgui, N., Saito, T., Schühle, U., Gottwald, A., Kroth, U., Jones, A. R.

“…We present a long-term assessment of the radiometric calibration and degradation of the Large Yield Radiometer (LYRA), which has been on orbit since 2009. LYRA…”
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Spectroscopy of Solar Prominences Simultaneously From Space and Ground by Stellmacher, G, Wiehr, E, Dammasch, Ie

“…We present a comprehensive set of spectral data from two quiescent solar prominences observed in parallel from space and ground: with the VTT, simultaneous…”
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On the Unresolved Fine Structures of the Solar Upper Atmosphere. IV. The Interface with the Chromosphere by Feldman, U, Dammasch, I. E, Wilhelm, K

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A new approach for deriving the solar irradiance from nonflaring solar upper atmosphere plasmas at 2 × 104 ≤ T ≤ 2 × 107 K by Feldman, U., Brown, C. M., Seely, J. F., Dammasch, I. E., Landi, E., Doschek, G. A., Colgan, J., Abdallah Jr, J., Fontes, C. J., Sherrill, M. E.

“…We propose a new approach for deriving the solar irradiance due to the emission by solar upper atmosphere plasmas at 2 × 104 ≤ T ≤ 2 × 107 K for wavelengths…”
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The Morphology of the Solar Upper Atmosphere During the Sunspot Minimum by Feldman, U, Dammasch, I E, Wilhelm, K

“…The solar upper atmosphere (SUA) is defined as the volume above the photosphere occupied by plasmas with electron temperatures, T^sub e^, above [asymptotically…”
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Solar Wind Outflow and the Chromospheric Magnetic Network by Hassler, Donald M., Dammasch, Ingolf E., Lemaire, Philippe, Brekke, På l, Curdt, Werner, Mason, Helen E., Vial, Jean-Claude, Wilhelm, Klaus

“…Observations of outflow velocities in coronal holes (regions of open coronal magnetic field) have recently been obtained with the Solar and Heliospheric…”
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Free-Free Emission in the Far-Ultraviolet Spectral Range: A Resource for Diagnosing Solar and Stellar Flare Plasmas by Feldman, U, Landi, E, Doschek, G. A, Dammasch, I, Curdt, W

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Coronal response of Bi-directional Jets by Doyle, J.G., Madjarska, M.S., DzifČÁkovÁ, E., Dammasch, I.E.

“…EUV bi-directional jets are a prominent class of phenomena characterizing the solar transition region. Using simultaneously obtained SUMER observations in the…”
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