Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Peter V. Birch"'
Publikováno v:
Icarus. 118:223-270
We present the results of narrowband photometry of 85 comets observed over a period of 17 years. The data have been reduced homogeneously to molecular production rates and a proxy for the dust production rate. We confirm previous investigations, both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5906d92f014fa4900716d7bbaf0891c0
https://doi.org/10.1006/icar.1995.1190
https://doi.org/10.1006/icar.1995.1190
Autor:
W. D. Sears, T. Kwiatkowski, F. P. Velichko, Tadeusz Michalowski, V.G. Kalashnikov, Peter V. Birch, Vasilij G. Shevchenko, Yu. N. Krugly, M. Di Martino, P. Denchev
Publikováno v:
Icarus. 118:292-301
New photoelectric observations for 17 Thetis (1985, 1993, 1994-95), 52 Europa (1992, 1994), 532 Herculina (1982, 1988, 1992), and 704 Interamnia (1993) carried out at seven observatories, are presented. Using all available lightcurves, the spin vecto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72d46631fbce8437b4c339e0927cd078
https://doi.org/10.1006/icar.1995.1192
https://doi.org/10.1006/icar.1995.1192
Autor:
Valerij S. Shevchenko, Tomas Hudecek, Jean Lecacheux, Carol Neese, M. Antonietta Barucci, Leonid A. Akimov, Tsuko Nakamura, Vasilij G. Chiornij, Paolo Angelini, J.W. Young, O.B. Ezhkova, F. P. Velichko, C. A. Angeli, Claudia Venditti, Danilo Riccioli, François Colas, Peter Dentchev, Marcello Fulchignoni, Beatrice E. A. Mueller, Z.B. Korobova, Marc W. Buie, N. I. Koshkin, Peter V. Birch, Vasilij G. Shevchenko, Daniela Lazzaro, Michael C. Nolan, Elisabetta Dotto, S. Yu. Mel'Nikov, C. Blanco, Anna Caruso, Ben Zellner, Valdimir P. Kozhevnikov, M.Cristina De Sanctis, Nikolay Dorokhov, John R. Spencer, Roberta Venditti, Wayne Osborn, Alan W. Harris, Wieslaw Z. Wisniewski, Tadeusz Michalowski, Simon F. Green, Yurij N. Krugly, Ellen S. Howell, Petr Pravec, Valerij V. Kobelev, David J. Tholen, Alexander V. Kalashnikov, Jack MacConnell
Publikováno v:
Icarus. 117:71-89
The Apollo asteroid 4179 Toutatis passed within 0.0242 AU of Earth in December 1992, and photometry was obtained by observers from at least 25 sites around the world, at solar phase angles between 121° and 0.2°. The phase curve is well described in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c3fa7b9077cbb5939e85f40014e03b2
https://doi.org/10.1006/icar.1995.1143
https://doi.org/10.1006/icar.1995.1143
Publikováno v:
Icarus. 104:206-225
Distinctive cometary components (dust, ions, and radicals) are studied on the basis of 2D, narrow-band CCD images of Comet Wilson (1987VII). The fact that Comet Wilson showed no significant structures in the neutral coma during its first perihelion p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8887af3662dbbabafc78d1552f345e1f
https://doi.org/10.1006/icar.1993.1096
https://doi.org/10.1006/icar.1993.1096
Publikováno v:
Icarus. 90:299-307
Ground-based photoelectric photometry in b, y, and the 6190 and 7250 A methane-bands, as well as spectrum scans of the methane 6190 A band and CCD images at 6190 and 8900 A, were obtained for Neptune during Voyager 2's approach of that planet on Augu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dabdcab0a271d87fe9ea4df2314bd4cf
https://doi.org/10.1016/0019-1035(91)90108-6
https://doi.org/10.1016/0019-1035(91)90108-6
Autor:
Hugo Moreno, A. Gutierrez-Moreno, Robert L. Millis, Peter V. Birch, Michael F. A'Hearn, Wayne Osborn, Uri Carsenty, David G. Schleicher
Publikováno v:
Icarus. 88:228-245
Magnitudes are presented in 10 bandpasses for 63 stars that can be used as standards in photometric observations of comets. The bandpasses are, in addition to those for three (UV, blue, and red) continuum points, those which measure C2, C3, CN, CO(+)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59bb62748d8f41dea64dd71b6d3a3c2
https://doi.org/10.1016/0019-1035(90)90187-e
https://doi.org/10.1016/0019-1035(90)90187-e
Publikováno v:
Cometary Science after Hale-Bopp ISBN: 9789048161560
We present preliminary results from our on-going observational campaign of Comet LINEAR (2000 WM1). These ground-based observations include both narrowband photometry and CCD imaging. We began monthly photometric observations of LINEAR in August 2001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd7c553965b0d281236e04105116193
https://doi.org/10.1007/978-94-017-1088-6_40
https://doi.org/10.1007/978-94-017-1088-6_40
Autor:
Tony L. Farnham, Laura M. Woodney, Peter V. Birch, Lorenza Levy, David G. Schleicher, Clara A. Eberhardy
Publikováno v:
Science (New York, N.Y.). 292(5520)
We analyzed photometric measurements and images of comet C/LINEAR before perihelion and after its breakup. Results from our photometry data include a lower limit of 0.44 kilometer for the radius of the nucleus before breakup, and a determination that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4349ec9fa922f51704587714e7080f8f
https://pubmed.ncbi.nlm.nih.gov/11359005
https://pubmed.ncbi.nlm.nih.gov/11359005
Autor:
K. R. Pollard, Kailash C. Sahu, Penny D. Sackett, J.-W. Pel, Michael D. Albrow, Andrew Williams, J. A. R. Caldwell, R. Martin, J. W. Menzies, Martin Zwaan, Peter V. Birch, P. Vreeswijk
Publikováno v:
Astrophysical Applications of Gravitational Lensing ISBN: 9780792339557
A newly-formed microlensing monitoring network, the PLANET collaboration, is briefly described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2341172d44b481141c170a33d956b9fa
https://doi.org/10.1007/978-94-009-0221-3_57
https://doi.org/10.1007/978-94-009-0221-3_57
Autor:
William E. Allen, David Skillman, Galilean Satellite Observers, Thomas Langhans, C. Blanco, Lawrence H. Wasserman, Iain Coulson, David Rettig, John Westfall, Mitaka Shi, William M. Sinton, Peter V. Birch, Fred A. Franklin, Jan-Erik Solheim, James Walters, Mitsuru Soma, Kaare Aksnes, Jay D. Goguen, Robert C. Jones, Clive Rowe, Robert L. Marcialis, Tsuko Nakamura, J. L. Africano, William G. Weller, Robert L. Millis
Publikováno v:
The Astronomical Journal. 102:806
This paper derives midtimes and relative satellite positions from nearly 200 light curves of mutual eclipses and occultations of the Galilean satellites that occurred in 1985. It is shown that, at least for observations of the highest quality, the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bef001a0c597913b452d9216fbf95ae0
https://doi.org/10.1086/115912
https://doi.org/10.1086/115912