Results 11 to 20 of about 4,939 (124)
EUVE J0425.6−5714: A Newly Discovered AM Herculis Star [PDF]
Publications of the Astronomical Society of the Pacific, 1998 We detected a new AM Her star serendipitously in a 25 day observation with the EUVE satellite. A coherent period of 85.82 min is present in the EUVE Deep Survey imager light curve of this source. A spectroscopic identification is made with a 19th magnitude blue star that has H and He emission lines, and broad cyclotron humps typical of a magnetic ...
Halpern, J. P. +4 more
openaire +4 more sources
IUE results on the AM Herculis stars CW 1103, E1114, and PG 1550
The Astrophysical Journal, 1985 IUE data are presented on three AM Her stars (CW 1103 + 254, E1114 + 182, and PG 1550 + 191) which are used in conjunction with optical and IR fluxes to study the accretion characteristics of these systems in relation to other polars.The time-resolved IUE spectra of CW 1103 show that the column contributes little to the UV, while the white dwarf, with ...
P. Szkody, J. Liebert, R. J. Panek
openaire +2 more sources
Circular polarimetry of EXO 033319-2554.2 - A new eclipsing AM Herculis star
The Astrophysical Journal, 1988 This Letter presents circular polarimetry that unequivocally identifies EXO 033319-2554.2 as only the third eclipsing AM Her star and brings the total number of AM Her stars now identified to 14. The orbital period is 126.4 minutes, as previously reported, and defines a new short-period edge to the period gap seen in all classes of cataclysmic variable
Graham Berriman, Paul S. Smith
openaire +2 more sources
The evolutionary state of UU Herculis stars
Publications of the Astronomical Society of the Pacific, 1989 J. Fernie, D. Sasselov
exaly +2 more sources
Food and Energy Security, Volume 11, Issue 2, May 2022., 2022 Abstract The female inflorescence of hops is traditionally used in the brewing industry to impart bitterness, aroma, flavour and longer shelf life to beer, where the bittering acids are the main compounds that enhance the quality of the beer. In recent years, a wide variety of bioactive compounds have been reported to be present in female flowers.
Shaokang Sun +11 more
wiley +1 more source
The Astronomical Journal, 2023 There have been relatively few published long-duration, uninterrupted light curves of magnetic cataclysmic variable stars in which the accreting white dwarf’s rotational frequency is slightly desynchronized from the binary orbital frequency.
Colin Littlefield +9 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 When the accreting white dwarf in a magnetic cataclysmic variable star (mCV) has a field strength in excess of 10 MG, it is expected to synchronize its rotational frequency to the binary orbit frequency, particularly at small binary separations, due to ...
Colin Littlefield +8 more
doaj +1 more source
Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable
The Astrophysical Journal, 2023 We present the results of our X-ray, ultraviolet, and optical follow-up campaigns of 1RXS J165424.6-433758, an X-ray source detected with the Swift Deep Galactic Plane Survey.
B. O’Connor +27 more
doaj +1 more source