Zobrazeno 1 - 10
of 21
pro vyhledávání: '"T. Leifsen"'
Autor:
Jayant Joshi, Daniel Nóbrega-Siverio, Vasco Manuel de Jorge Henriques, Clara Froment, H. Skogsrud, Ada Ortiz, Göran B. Scharmer, Eamon Scullion, C. Quintero Noda, Milan Gošić, Georgios Chintzoglou, Mats Carlsson, R. Timmons, Lucia Kleint, Pia Zacharias, Tiago M. D. Pereira, T. Leifsen, M. M. Woods, Viggo Hansteen, Mikolaj Szydlarski, Petra Kohutova, Juan Martinez-Sykora, Gregal J. M. Vissers, Souvik Bose, Ainar Drews, David Graham, Shahin Jafarzadeh, A. Sainz Dalda, D. Schmit, A. Popovas, L. Rouppe van der Voort, J. de la Cruz Rodríguez, B. De Pontieu
Publikováno v:
Astronomy & Astrophysics
NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in June 2013, we have conducted systematic observation campaigns in coordi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc9acd3f7a018f7c6cd656cfba6b5ad9
Publikováno v:
Solar Physics. 191:129-159
Oscillations with a period of 3 minutes are observed in the transition region of six sunspots with the Solar and Heliospheric Observatory - SOHO joint observing programme for velocity fields in sunspot regions. Observations of the transition region l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e6d6b7de3352fb724e7a0abc95e3cfc
https://doi.org/10.1023/a:1005279321373
https://doi.org/10.1023/a:1005279321373
Autor:
B. N. Andersen, Christoph Wehrli, Janine Provost, Douglas Gough, V. Domingo, T. Appourchaux, Takashi Sekii, Wolfgang Finsterle, J. Romero, Hansjörg Roth, T. Leifsen, T. Toutain, María Gómez, Gabrielle Berthomieu, Udo Telljohann, J. M. Pap, D. Crommelynck, M. Lombaerts, A. Jiménez, Claus Fröhlich, T. Roca Cortes, Alain Fichot
Publikováno v:
Symposium - International Astronomical Union. 181:67-82
First results from the 4-6 months observations of the VIRGO experiment (Variability of solar IRradiance and Gravity Oscillations) on the ESA/NASA Mission SOHO (Solar and Heliospheric Observatory) are reported. The time series are evaluated in terms o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6aa35c0d7998eae2a981220071668d6
https://doi.org/10.1017/s0074180900061039
https://doi.org/10.1017/s0074180900061039
Publikováno v:
Solar Physics. 152:247-252
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::985e40756a67006dd3b96e6b123ce7cc
https://doi.org/10.1007/bf01473211
https://doi.org/10.1007/bf01473211
Autor:
T. Leifsen, P. Maltby
Publikováno v:
Solar Physics. 125:241-249
The detection of large-amplitude infrared solar intensity oscillations in the 5-min region is reported. Using a broad-band multichannel photometer, the peak-to-peak intensity variation at 2.23 μm is found to be as high as 2.4% for a circular apertur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34feb7f7d083cf578c160ec412c27494
https://doi.org/10.1007/bf00158404
https://doi.org/10.1007/bf00158404
Publikováno v:
Scopus-Elsevier
The authors have calculated the wavelet transform of so-called helio-seismological data from the IPHIR experiment onboard the Soviet Phobos spacecraft. The mother wavelet was a modified Morlet-Grossmann wavelet. The results show that the solar oscill
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dab73dc318cbe5a75eb89854d142adb
https://doi.org/10.1109/tfsa.1994.467341
https://doi.org/10.1109/tfsa.1994.467341
Based on observations obtained with the Solar and Heliospheric Observatory - SOHO joint observing program for velocity fields in sunspot regions, we have detected 3 min transition region umbral oscillations in NOAA 8156. Simultaneous recordings of O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb286d5f9a9f97126ca85f181b8ccac
Autor:
C. Fröhlich, B. N. Andersen, T. Appourchaux, G. Berthomieu, D. A. Crommelynck, V. Domingo, A. Fichot, W. Finsterle, M. F. Gómez, D. Gough, A. Jiménez, T. Leifsen, M. Lombaerts, J. M. Pap, J. Provost, T. Roca Cortés, J. Romero, H.-J. Roth, T. Sekii, U. Telljohann, T. Toutain, C. Wehrli
Publikováno v:
Sounding Solar and Stellar Interiors ISBN: 9780792348399
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3018a6c7911dbb89a981ac707fa24ab7
https://doi.org/10.1007/978-94-011-5163-4_6
https://doi.org/10.1007/978-94-011-5163-4_6
First Results from VIRGO, the Experiment for Helioseismology and Solar Irradiance Monitoring on SOHO
Autor:
Wolfgang Finsterle, B. N. Andersen, Antonio Jiménez, Douglas Gough, Claus Fröhlich, T. Toutain, María Gómez, Hansjörg Roth, V. Domingo, J. M. Pap, Takashi Sekii, Udo Telljohann, T. Appourchaux, D. Crommelynck, Janine Provost, Marc Lombaerts, Christoph Wehrli, Teodoro Roca Cortés, J. Romero, Alain Fichot, T. Leifsen, Gabrielle Berthomieu
Publikováno v:
The First Results from SOHO ISBN: 9789401062046
First results from the VIRGO experiment (Variability of solar IRradiance and Gravity Oscillations) on the ESA/NASA Mission SOHO (Solar and Heliospheric Observatory) are reported. The observations started mid-January 1996 for the radiometers and sunph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb5bc8e4f5d74e8bf4e80d680a58dc2e
https://doi.org/10.1007/978-94-011-5236-5_1
https://doi.org/10.1007/978-94-011-5236-5_1
Autor:
T. Leifsen
Publikováno v:
Infrared Solar Physics ISBN: 9780792325239
Large amplitude solar 5-min intensity oscillations have recently been detected at 2.23 μm using broad band(650 A FWHM) photometry (Leifsen and Maltby, 1990). Large intensity amplitudes in a broad range in the near infrared was unexpected, and severa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85d06c0bd537b610e0d910dec4081434
https://doi.org/10.1007/978-94-011-1926-9_34
https://doi.org/10.1007/978-94-011-1926-9_34