Zobrazeno 1 - 10
of 57
pro vyhledávání: '"R. Ziener"'
Publikováno v:
Astronomy and Astrophysics Supplement Series. 124:189-196
We report on the measurement of absolute proper motions of stars of magnitude 7 to 14.5 in a 22 eld in the region of the M 81 group of galaxies. This work is part of the Bonn program for the extragalactic link of Hipparcos. The proper motions were de
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 278:251-264
Autor:
N. Bade, M. Varady, R. Ziener, W. S. Paciesas, A. V. Barabanov, Gerald J. Fishman, Jan Florián, Robert B. Wilson, Chryssa Kouveliotou, René Hudec, P. Spruný, S. B. Tritton, T. Ichikawa, W. Wensel, C. A. Meegan, K. Birkle, E. I. Moskalenko, Jochen Greiner, P. Štěpán
Publikováno v:
International Astronomical Union Colloquium. 151:381-384
This status report presents details on the project to search for serendipitous time-correlated optical photographic observations of γ-ray bursters. The ongoing photographic observations at nine observatories are used to look for plates which have be
Publikováno v:
International Astronomical Union Colloquium. 148:486-489
We report on the present status of an ongoing study of variability and proper motion of quasars based on Tautenburg Schmidt plates of the field around M3. The main aspects are: (i) a thorough investigation of variability of a sample of known quasars
Publikováno v:
Astronomische Nachrichten: A Journal on all Fields of Astronomy. 312:149-160
The structure of the centre of the galaxy cluster A 1795 and its surroundings, representing different cluster components, has been investigated in several wavelength ranges. A preferred orientation deviating about 10–20° from the north-south direc
Autor:
J. Greiner, W. Wenzel, R. Hudec, M. Varady, P. Štěpán, P. Spurný, J. Florián, E. I. Moskalenko, A. V. Barabanov, R. Ziener, K. Birkle, N. Bade, S.B. Tritton, T. Ichikawa, G. J. Fishmano, C. Kouveliotou, C. A. Meegan, W. S. Paciesas, R. B. Wilson
Publikováno v:
Flares and Flashes ISBN: 9783540600572
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::092ca9416094ac7166c86b390a1262fb
https://doi.org/10.1007/3-540-60057-4_314
https://doi.org/10.1007/3-540-60057-4_314
Autor:
F. W. Baier, R. Ziener
Publikováno v:
Astronomische Nachrichten: A Journal on all Fields of Astronomy. 311:5-30
Publikováno v:
Symposium - International Astronomical Union. 161:737-739
We report first results of a photometric investigation of the optical long-term behaviour of a sample of quasars. Our study is based on the plate archive of the Tautenburg 134 cm Schmidt telescope which covers a time baseline of over 30 years.
Autor:
T. Ichikawa, René Hudec, S. B. Tritton, R. B. Wilson, W. S. Paciesas, Jan Florián, C. A. Meegan, A. V. Barabanov, N. S. Chernych, J. Greiner, K. Birkle, E. I. Moskalenko, Pavel Spurný, N. Bade, C. Kouveliotou, W. Wenzel, G. J. Fishman, R. Ziener
Publikováno v:
AIP Conference Proceedings.
We report on the on-going project to search for serendipitous time-correlated optical photographic observations of γ-ray bursts (GRBs). The regular photography at 12 observatories is used to look for plates which have been exposed simultaneously wit
Publikováno v:
Astronomy from Wide-Field Imaging ISBN: 9780792328797
We report first results of a photometric investigation of the optical long-term behaviour of a sample of quasars. Our study is based on the plate archive of the Tautenburg 134 cm Schmidt telescope which covers a time baseline of over 30 years.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9e1578b466b849579c5da24f9c67db1
https://doi.org/10.1007/978-94-011-1146-1_155
https://doi.org/10.1007/978-94-011-1146-1_155