Zobrazeno 1 - 10
of 49
pro vyhledávání: '"F. A. Ringwald"'
Autor:
Kenia Velasco, F. A. Ringwald
Publikováno v:
New Astronomy. 17:108-111
A radial velocity study of the cataclysmic variable ES Dra (PG 1524+622) is presented. ES Dra is found to have an orbital period of 0.17660 \pm 0.00006 d (4.2384 \pm 0.0014 h). The mass-losing secondary star of ES Dra is detectable in the spectrum, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f5a86e153d4f005be3416d816d7065c
https://doi.org/10.1016/j.newast.2011.07.007
https://doi.org/10.1016/j.newast.2011.07.007
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. II The Second Year (2009–2010)
Autor:
Enrique de Miguel, Katsura Matsumoto, Pavol A. Dubovsky, Kousei Yamashita, Shinichi Nakagawa, Arne Henden, Rod Stubbings, Daichi Fujii, Christopher Stockdale, Igor Kudzej, Kazuyoshi Imamura, Ryoko Ishioka, Daisaku Nogami, David Boyd, Etienne Morelle, Tim Crawford, F. A. Ringwald, Nanae Kunitomi, Peter Nelson, Akira Imada, Makoto Uemura, Roger D. Pickard, Bart Staels, Kenji Tanabe, Seiichiro Kiyota, Arto Oksanen, Eriko Iino, Elena P. Pavlenko, Ryo Noguchi, Eddy Muyllaert, Hiroshi Itoh, Rudolf Novak, Gianluca Masi, Taichi Kato, Mike Simonsen, Sachi Ohtomo, Michael Richmond, Tetsuya Kuramoto, Hiroyuki Maehara, Steve Brady, Atsushi Miyashita, Tomas Hynek, Tomohito Ohshima, Hirofumi Yanagisawa, Tomás L. Gómez, Shawn Dvorak, Javier Ruiz, Kazuyuki Ogura, Hiroshi Kobayashi, Irina Voloshina, Ian Miller, Ryosuke Takagi, Franz-Josef Hambsch, Greg Bolt, Mikiha Nose, Jeremy Shears, Berto Monard, Thomas Krajci, Hidehiko Akazawa
Publikováno v:
Publications of the Astronomical Society of Japan. 62:1525-1584
As an extension of the project in Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 61 SU UMa-type dwarf novae mainly observed during the 2009-2010 season. The newly obtained data confirmed the basic findings reported in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a1ca40c7418303f306a996f78c9d4c2
https://doi.org/10.1093/pasj/62.6.1525
https://doi.org/10.1093/pasj/62.6.1525
Publikováno v:
Publications of the Astronomical Society of the Pacific. 117:1223-1229
Time-resolved spectroscopy and photometry of two cataclysmic variables (CVs) are presented. A radial velocity study shows CT Ser (Nova Ser 1948) has an orbital period of 0.195 ± 0.002 days. Its light curve shows only erratic flickering. A radial vel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b88786ed612a3682afac3c76b026bfaf
https://doi.org/10.1086/491721
https://doi.org/10.1086/491721
Publikováno v:
Publications of the Astronomical Society of the Pacific. 117:938-943
This paper collects together early IAU Circular observations, plots the light curve, and presents our own spectra of V475 Scuti (Nova Sct 2003). We describe the early spectral evolution of this nova during the 7 weeks after its discovery. The princip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d55d585246ed1d21f855acc7637deef3
https://doi.org/10.1086/432227
https://doi.org/10.1086/432227
Publikováno v:
The Astrophysical Journal. 594:428-434
DQ Herculis (Nova Herculis 1934) is a deeply eclipsing cataclysmic variable containing a magnetic white dwarf primary. The accretion disk is thought to block our line of sight to the white dwarf at all orbital phases due to its extreme inclination an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::685115eb60ef088f25736fd5c4b89513
https://doi.org/10.1086/376752
https://doi.org/10.1086/376752
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 344:521-526
The novae V4742 and V4743 Sagittarii (Sgr) erupted less than a week apart in 2002 September. This paper collects together early IAU Circular observations, plots light curves, and presents our own spectra of these novae. The spectra were collected wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fbff0add5135755b4156a273846e6e2
https://doi.org/10.1046/j.1365-8711.2003.06852.x
https://doi.org/10.1046/j.1365-8711.2003.06852.x
Autor:
Knox S. Long, D. K. Witherick, Cynthia S. Froning, J. S. Clark, Christian Knigge, F. A. Ringwald, Raman K. Prinja
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 340:551-561
We present Far Ultraviolet Spectroscopic Explorer (FUSE) satellite time-series data of the low-inclination, nova-like cataclysmic variable RW Sex. The data span the wavelength range between ∼905 and 1188 A, which contains the resonance lines of C i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a865619e7d48d09905eb8445867da59
https://doi.org/10.1046/j.1365-8711.2003.06307.x
https://doi.org/10.1046/j.1365-8711.2003.06307.x
Publikováno v:
Astronomy & Astrophysics. 384:504-512
We present broadband optical polarimetry of the classical novae V705 Cas, V4362 Sgr, V2313 Oph and BY Cir in outburst. The data indicate that, in all cases, there is an intrinsic component of polarization and in some cases the variability is very rap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df497907d0f6400c5240572aab539889
https://doi.org/10.1051/0004-6361:20020055
https://doi.org/10.1051/0004-6361:20020055
Autor:
Holly A. Sheets, Christopher S. Peters, Julie N. Skinner, John R. Thorstensen, Cynthia J. Taylor, Kathryn E. Weil, F. A. Ringwald, Erek H. Alper
Publikováno v:
Research Notes of the AAS. 1:29
We present a table of 58 cataclysmic binary orbital periods determined using data from MDM Observatory. Most are heretofore unpublished; some are refinements of previously published periods.
Comment: One table; accepted for publication in Resear
Comment: One table; accepted for publication in Resear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::226155e5647afdc303061c9a1d4b6de1
https://doi.org/10.3847/2515-5172/aa9d2a
https://doi.org/10.3847/2515-5172/aa9d2a
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 318:368-374
We report on the time-dependent behaviour of ultraviolet spectral lines in Hubble Space Telescope Goddard High-Resolution Spectrograph data of the classical nova V603 Aql. In particular, episodic blueshifted absorption (extending to similar to -2500
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be935275b2640b5b44ae2261537804a3
https://doi.org/10.1046/j.1365-8711.2000.03702.x
https://doi.org/10.1046/j.1365-8711.2000.03702.x