Zobrazeno 1 - 10
of 28
pro vyhledávání: '"D. H. Bradstreet"'
Publikováno v:
New Astronomy. 41:26-36
We present the results of our investigation on the geometrical and physical parameters of the W UMa type binary system HH Bootis from new CCD (BVRI) light curves and published radial velocity data. The photometric data were obtained in 2011 and 2012
Publikováno v:
New Astronomy. 39:9-18
We present the results of our investigation on the geometrical and physical parameters of the W UMa type binary system BO Ari from analyzed CCD (BVRI) light curves and radial velocity data. The photometric data were obtained in 2009 and 2010 at Ankar
Autor:
Virginia L. Trimble, Theodor Pribulla, John Southworth, Joanna Mikolajewska, Colin Scharfe, Carla Maceroni, D. H. Bradstreet, Mercedes T. Richards, Horst Dreschsel, Ulisse Munari, Andrej Prsa, Ignasi Ribas
Publikováno v:
Proceedings of the International Astronomical Union. 11:474-489
Commission 42 began life as Photometric Double Stars in 1948 at the 7th General Assembly in Zurich, under the presidency of Zdenek Kopal. As early as 1961, then General Secretary Lukas Plaut recommended a merger between C42 and C26, Double Stars, one
Publikováno v:
New Astronomy. 36:100-109
We present the results of our investigation on the geometrical and physical parameters of the W UMa-type binary V546 And from analyzed CCD (BVRI) light curves and radial velocity data. The photometric data were obtained in 2010 and 2011 at Ankara Uni
Autor:
J. M. Giammarco, Andrej Prsa, Edward F. Guinan, Scott G. Engle, E. J. Devinney, Charles Alcock, D. H. Bradstreet, M. DeGeorge
Publikováno v:
The Astrophysical Journal. 687:542-565
Achieving maximum scientific results from the overwhelming volume of astronomical data to be acquired over the next few decades will demand novel, fully automatic methods of data analysis. Artificial intelligence approaches hold great promise in cont
Autor:
Sergio Messina, D. H. Bradstreet, Padmakar Parihar, William Herbst, Claudio Melo, Elisa Distefano, Katia Biazzo, Antonino F. Lanza
We present the results of our analysis on V1481 Ori (JW 239), a young SB2 in the Orion Nebula Cluster with a circumbinary disc accreting on the lower-mass component. The analysis is based on high-resolution spectroscopic data and high-quality photome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9dc7a2aa886fd3e1811a335594fb7e1
http://hdl.handle.net/20.500.12386/24462
http://hdl.handle.net/20.500.12386/24462
We are carrying out a series of photometric monitoring to measure the rotation periods of members in the young $\beta$ Pictoris Association, as part of the RACE-OC project (Rotation and ACtivity Evolution in Open Clusters). In this paper, we present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0932220a9fe17a6f4e2579896fa26c5d
http://arxiv.org/abs/1502.02395
http://arxiv.org/abs/1502.02395
Autor:
Alvaro Gimenez, D. H. Bradstreet, J. D. Pritchard, Edward F. Guinan, F. P. Maloney, P. A. Maurone, Ignasi Ribas, Edward L. Fitzpatrick, Laurence E. DeWarf
Publikováno v:
The Astrophysical Journal. 528:692-701
We are carrying out an international, multi-wavelength program to determine the fundamental properties and independent distance estimates of selected eclipsing binaries in the LMC and SMC. Eclipsing binaries with well-defined double-line radial veloc
Autor:
Carme Jordi, D. H. Bradstreet, Ignasi Ribas, Juan Carlos Morales, C. Allende Prieto, S. J. Sanders
Publikováno v:
Astrophysics and Space Science. 304:231-233
Detached eclipsing binaries (EBs) provide a unique opportunity to carry out stringent tests on stellar evolution models. The value of EBs is enhanced by their membership in open clusters, but the number of known systems is still very scarce. We have
Autor:
Guillem Anglada-Escudé, D. H. Bradstreet, Mark E. Everett, Juan Carlos Morales, Ignasi Ribas, Francis T. O'Donovan, Guillermo Torres, David W. Latham, Georgi Mandushev, David Charbonneau, Carme Jordi, José A. Gallardo, Marek Wolf, Edward F. Guinan, Robert D. Mathieu
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
12 pages, 7 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0810.1541
Spectroscopic and eclipsing binary systems offer the best means for determining accurate physical properties of stars, including their masses and radii. The data
Spectroscopic and eclipsing binary systems offer the best means for determining accurate physical properties of stars, including their masses and radii. The data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26de6cd6cd9fd199da9d6507791c13fd