Zobrazeno 1 - 10
of 157
pro vyhledávání: '"D. Dobrzycka"'
Autor:
Leonard Strachan, John C. Raymond, N.-E. Raouafi, M. Uzzo, D. Dobrzycka, Yuan-Kuen Ko, Angela Ciaravella
Publikováno v:
The Astrophysical Journal. 597:1106-1117
The Ultraviolet Coronagraph Spectrometer (UVCS) aboard the {\it SOHO} satellite has observed very fast Coronal Mass Ejections (CMEs) associated with X-class flares. These events show spectral signatures different than those seen in most other CMEs in
Autor:
Adam Dobrzycki, Kim-Vy Tran, Jill Bechtold, Brenda Wilden, D. Dobrzycka, Miwa Morita, Thomas L. Aldcroft, Jennifer Scott
Publikováno v:
The Astrophysical Journal Supplement Series. 140:143-238
We analyzed the absorption line spectra of all quasars observed with the high resolution gratings of the Faint Object Spectrograph on board the Hubble Space Telescope. We examined 788 spectra for 334 quasars, and present line lists and identification
Publikováno v:
The Astrophysical Journal. 565:621-629
We present an analysis of six polar coronal jets observed by the Ultraviolet Coronagraph Spectrometer (UVCS) at solar minimum (1996). Four of the events were also recorded by the Extreme-Ultraviolet Imaging Telescope (EIT) and/or the Large Angle Spec
Publikováno v:
Advances in Space Research. 29:337-341
We present ultraviolet spectroscopy of polar coronal jets obtained with the Ultraviolet Coronagraph Spectrometer aboard the Solar and Heliospheric Observatory . They correlate with the Extreme—Ultraviolet Imaging Telescope Fe XII (195A) and Large A
Publikováno v:
The Astrophysical Journal. 538:922-931
We have observed a total of five UVCS/SOHO polar jets that correlate with the Extreme-Ultraviolet Imaging Telescope (EIT) and Large Angle Spectrometric Coronagraph (LASCO) jet events. We analyzed spectroscopic observations of these jets and found tha
Autor:
John L. Kohl, Leonard Strachan, Giancarlo Noci, D. Dobrzycka, Sarah Gibson, Douglas A. Biesecker, Alexander Panasyuk
Publikováno v:
Journal of Geophysical Research: Space Physics. 105:2345-2356
Empirical determinations of outflow velocities in the solar corona provide a much needed constraint, along with density and temperature determinations, of the acceleration and heating mechanisms in the extended corona. Much progress has been made on
Publikováno v:
Journal of Geophysical Research: Space Physics. 104:9791-9799
We study the latitudinal distribution of the H I Lyman α and O VI (103.2 nm and 103.7 nm) line emission during the period of the Whole Sun Month campaign (August 10 to September 8, 1996) when the Sun was close to the minimum of its activity. The H I
Autor:
O. H. W. Siegmund, Marco Romoli, Steven R. Cranmer, Angela Ciaravella, Giannina Poletto, John C. Raymond, Leonard Strachan, S. Giordano, L. D. Gardner, Carlo Benna, Silvano Fineschi, J. Michels, Claudio Pernechele, Xing Li, M. C. E. Huber, Giuseppe Tondello, A. Modigliani, Daniele Spadaro, Giancarlo Noci, Raid Suleiman, Ester Antonucci, Giampiero Naletto, Piergiorgio Nicolosi, Randall V. Martin, Margarita Karovska, P. L. Smith, Shadia Rifai Habbal, J. L. Kohl, D. Dobrzycka, R. O'Neal, Alexander Panasyuk
Publikováno v:
Scopus-Elsevier
We present a comprehensive and self-consistent empirical model for several plasma parameters in the extended solar corona above a polar coronal hole. The model is derived from observations with the SOHO Ultraviolet Coronagraph Spectrometer (UVCS/SOHO
Autor:
Silvano Fineschi, Richard J. Edgar, D. Dobrzycka, Shadia Rifai Habbal, John C. Raymond, Ruth Esser, Madhulika Guhathakurta, John L. Kohl
Publikováno v:
The Astrophysical Journal. 510:L63-L67
Recent observations of the Lyα λ1216, Mg X λ625, and O VI λ1038 spectral lines carried out with the Ultraviolet Coronagraph Spectrometer (UVCS) on board SOHO at distances in the range 1.35-2.1 RS in the northern coronal hole are used to place lim
Autor:
Silvano Fineschi, Claudio Pernechele, Raid Suleiman, M. C. E. Huber, Xing Li, Alexander Panasyuk, A. Modigliani, L. D. Gardner, John C. Raymond, O. H. W. Siegmund, Marco Romoli, D. Dobrzycka, Ester Antonucci, Giancarlo Noci, R. O'Neal, J. Michels, R. Martin, Steven R. Cranmer, Giannina Poletto, Carlo Benna, J. L. Kohl, Giampiero Naletto, P. L. Smith, Shadia Rifai Habbal, Margarita Karovska, Daniele Spadaro, Piergiorgio Nicolosi, Angela Ciaravella, S. Giordano, Giuseppe Tondello, Leonard Strachan
Publikováno v:
The Astrophysical Journal. 501:L127-L131
We present a self-consistent empirical model for several plasma parameters of a polar coronal hole near solar minimum, derived from observations with the Solar and Heliospheric Observatory Ultraviolet Coronagraph Spectrometer. The model describes the