Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Fred Marang"'
Autor:
Derya Sürgit, Petr Zasche, Petr Hadrava, Ahmet Erdem, Chris A Engelbrecht, Fred Marang, Martin Mašek, Daniel J Stevens
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:4699-4715
The veracity of stellar evolution models and theoretical internal structure constants may be subjected to stringent tests by using physical parameters obtained from spectroscopic and photometric observations of eclipsing binary systems that exhibit a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cbafc00bdfbd78ddc1453dee9a194be
https://doi.org/10.1093/mnras/stac3738
https://doi.org/10.1093/mnras/stac3738
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 493:2659-2675
We present combined photometric and spectroscopic analyses of the three southern eclipsing binary stars: DQ Car, BK Ind, and V4396 Sgr. Radial velocity curves of these three systems were obtained at the South African Astronomical Observatory, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::791bbc549c295649690259a122d6a891
https://doi.org/10.1093/mnras/staa438
https://doi.org/10.1093/mnras/staa438
Autor:
Marissa Kotze, Thea Koen, Rudolph Kuhn, Anja Schroeder, Daniel Groenewald, Fred Marang, A. Y. Kniazev, Enrico J. Kotze, Christian Hettlage, Veronica Van Wyk, Moses Mogotsi, Rosalind E. Skelton, Lee Townsend, Sifiso Myeza, Lonwabo Zaula, Petri Väisänen, Encarni Romero-Colmenero, Nhlavutelo Macebele
Publikováno v:
Observatory Operations: Strategies, Processes, and Systems VIII
SALT is a 10-m class optical telescope located in Sutherland, South Africa, owned by an international consortium and operated in fully queue-scheduled mode by the South African Astronomical Observatory. In this paper we present an update on all obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c1186e2b6601f53c25843a7ff9c0abb
Autor:
Rosalind E. Skelton, T. B. Williams, Christian Hettlage, Anelisiwe Mayekiso, Brent Miszalski, Thea Koen, A. Y. Kniazev, Rudolph Kuhn, Anja Schroeder, Steven M. Crawford, Veronica Van Wyk, Nhlavutelo Macebele, Éric Depagne, Fred Marang, Petri Väisänen, Chris Coetzee, Encarni Romero-Colmenero, Marissa Kotze
Publikováno v:
Observatory Operations: Strategies, Processes, and Systems VII.
SALT is a 10-m class optical telescope located in Sutherland, South Africa, owned by an international consortium and operated in fully queue-scheduled mode by the South African Astronomical Observatory. Since the start of its science operations in la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d1d95f3430f4664273d48256daff03
https://doi.org/10.1117/12.2313881
https://doi.org/10.1117/12.2313881
Autor:
Karel A. van der Hucht, Fred Marang, Patrice Bouchet, Francois van Wyk, Peredur M. Williams, Patricia A. Whitelock, D. S. Gunawan
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 429:494-505
1 Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ; 2 Space Research Organization Netherlands, Sorbonnelaan 2, NL-3584 CA Utrecht, The Netherlands; 3 Astronomical Institute `Anton Pannekoek', University of Amster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6426d131079c10f5b03de0b16e1e77df
https://doi.org/10.1093/mnras/sts352
https://doi.org/10.1093/mnras/sts352
Autor:
Thea Koen, Ockert J. Strydom, Éric Depagne, S. Crawford, Veronica Van Wyk, Encarni Romero Colmenero, David A. H. Buckley, Petri Väisänen, Anja Schroeder, Fred Marang, Chris Coetzee, A. Y. Kniazev, Brent Miszalski, T. B. Williams, P. Kotze, Janus D. Brink
Publikováno v:
Observatory Operations: Strategies, Processes, and Systems VI.
SALT is a 10-m class optical telescope located in Sutherland, South Africa. We present an update on all observatory performance metrics since the start of full science operations in late 2011, as well as key statistics describing the science efficien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46bbdedfe9b4066600542285dca8172a
https://doi.org/10.1117/12.2232873
https://doi.org/10.1117/12.2232873
Autor:
D. S. Gunawan, Patrice Bouchet, Karel A. van der Hucht, Peredur M. Williams, Patricia A. Whitelock, Fred Marang, Francois van Wyk
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 420:2526-2538
We present infrared photometry of the WC8 Wolf-Rayet system WR 48a observed with telescopes at ESO, the SAAO and the AAT between 1982 and 2011 which show a slow decline in dust emission from the previously reported outburst in 1978--79 until about 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3c79f8145e841ac3a999d4da6b34f7a
https://doi.org/10.1111/j.1365-2966.2011.20218.x
https://doi.org/10.1111/j.1365-2966.2011.20218.x
Autor:
Bart Vandenbussche, Gert Raskin, Martin Groenewegen, Fred Marang, W. Zima, Peter Martinez, T. Maas, D. Ladjal, Tom Lloyd Evans, Laurent Eyer, Roy Ostensen, Pieter Deroo, K. Uytterhoeven, Maryline Briquet, Maarten Reyniers, Hans Van Winckel, Wim De Meester, Sophie Saesen, M. Desmet, Joris De Ridder, Peter De Cat, R. Drummond, M. Vučković, Christoffel Waelkens, Karolien Lefever, Pieter Degroote, Francois van Wyk, J. Vanautgaerden, Katrien Kolenberg, David Kilkenny, Pierre Royer
Publikováno v:
Astronomy & Astrophysics. 505:1221-1232
While the first binary post-AGB stars were serendipitously discovered, the distinct characteristics of their Spectral Energy Distribution (SED) allowed us to launch a more systematic search for binaries. We selected post-AGB objects which show a broa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64bd05a48edc8b2c52df96213bb99fe2
https://doi.org/10.1051/0004-6361/200912332
https://doi.org/10.1051/0004-6361/200912332
Autor:
Antonio Mário Magalhães, Jon E. Bjorkman, A. V. Kusakin, Juan Fabregat, Fred Marang, J. V. Perea Calderón, P. Garcí a-Lario, Alex C. Carciofi, K. S. Kuratov, Anatoly S. Miroshnichenko, Karen S. Bjorkman
Publikováno v:
The Astrophysical Journal. 652:1617-1625
We present optical $WBVR$ and infrared $JHKL$ photometric observations of the Be binary system $\delta$ Sco, obtained in 2000--2005, mid-infrared (10 and $18 \mu$m) photometry and optical ($\lambda\lambda$ 3200--10500 \AA) spectropolarimetry obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99a930f2040625f23205d92653fc3edb
https://doi.org/10.1086/507935
https://doi.org/10.1086/507935
Autor:
T. Maas, L.-Å. Nyman, F. van Wyk, T. Lloyd Evans, H. Van Winckel, P. Martinez, Fred Marang, David Kilkenny
Publikováno v:
Astronomy & Astrophysics. 405:271-283
We present an analysis of our extensive data-set on IRAS 08544-4431. It is the first object we discuss of our newly defined sample of stars, selected for their position in the 'RV Tauri' box in the IRAS [12]-[25], [25]-[60] two-color diagram. Moreove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3a3467903c33b0c331f675dd9c33e72
https://doi.org/10.1051/0004-6361:20030613
https://doi.org/10.1051/0004-6361:20030613