Zobrazeno 1 - 10
of 46
pro vyhledávání: '"M. R. Sanad"'
Publikováno v:
Astrophysics. 64:316-326
We present International Ultraviolet Explorer (IUE) observations of the luminous, non- eclipsing, double lined spectroscopic binary system UX Ari over the period 1978-1996. Three spectra showing modulations in line fluxes at different times are prese
Autor:
M. R. Sanad, M. A. Abdel-Sabour
Publikováno v:
Revista Mexicana de Astronomía y Astrofísica. 56:63-69
Ultraviolet observations of the symbiotic nova HM Sge were obtained from the International Ultraviolet Explorer (IUE) through the interval from 1980 - 1992. Three line profiles demonstrating the variations of some emission lines at different dates ar
Publikováno v:
Astrophysics. 61:91-100
We investigated the spectral evolution of some normalized UV emission lines through different stages of the outburst of the classical nova V1974 Cyg using International Ultraviolet Explorer (IUE) low resolution short wavelength spectra. The emission
Publikováno v:
Astronomische Nachrichten. 339:173-182
Autor:
M. R. Sanad, M. A. Abdel-Sabour
Publikováno v:
Astrophysical Bulletin. 73:77-83
We studied the intermediate polar TVCol during and after its flare in November 1982 observed in the ultraviolet range with the International Ultraviolet Explorer. Two spectra revealing the variations of emission lines at different times are presented
Autor:
M. R. Sanad, M. Bobrowsky
Publikováno v:
New Astronomy. 53:20-25
Ultraviolet spectra from the International Ultraviolet Explorer (IUE) and from the Hubble Space Telescope (HST) of the symbiotic novae AG Peg during the period 1978–1996 are analyzed. Some spectra showing the modulations of spectral lines at differ
Publikováno v:
New Astronomy. 52:122-132
We report the results of spectral and photometric observations of SU UMa. Available spectra from International Ultraviolet Explorer (IUE) and CCD photometry of five nights were used. Some profiles revealing the variations of some spectral lines at di
Autor:
M. R. Sanad
Publikováno v:
New Astronomy. 52:14-19
We present International Ultraviolet Explorer (IUE) & Hubble Space Telescope Space Telescope Imaging Spectrograph (HST STIS) observations of the symbiotic nova V1016 Cyg through the period 1978 – 2000. Four spectra at different times revealing the
Publikováno v:
Applied Mathematics and Nonlinear Sciences. 2:181-194
We report the results of spectral and photometric observations of DQ Her. Available spectra from International Ultraviolet Explorer (IUE), Hubble Space Telescope Faint Object Spectrograph (HST - FOS) and CCD photometry of one night were used. Some pr
Autor:
M. R. Sanad
Publikováno v:
Open Astronomy, Vol 24, Iss 3, Pp 327-341 (2015)
We present ultraviolet spectroscopic study of two polar systems, HU Aqr and AN UMa, observed with the Hubble Space Telescope’s Space Telescope Imaging Spectrograph (STIS) and Faint Object Spectrograph (FOS) and with the International Ultraviolet Ex