The variable star 120.1906 Persei
نویسندگان
چکیده
منابع مشابه
53 Persei : a slowly pulsating B star ?
A new investigation of the behaviour of the star 53 Per was performed. New photometric observations allow to confirm twodominant periods p1=2.16 d, p2= 1.67 d.A third one p3= 3.64 d is detected. These long period variations are present in our radial velocities data and in old equivalent width data. The amplitude of the p1 = 2.16 d period increases from 1977 to 1991, while the amplitude of the 1...
متن کاملThe Blazhko Effect of the RR Lyrae Star FM Persei
We have obtained 615 new V and R observations of the RR Lyrae star FM Per. A period search identified a primary period of 0.489256 days; however, the light curve of FM Per cannot be well described by a single period. We conclude that FM Per demonstrates the Blazhko effect with a Blazhko period of approximately 122 days.
متن کاملLuminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
متن کاملOn the polarization of φ Persei
Polarimetric data of φ Per from recent observations with the HPOL spectropolarimeter and from an earlier study in the literature have been compared. It is shown that for measurements with accuracies ∆p ∼ 0.003%, temporal changes are readily detected, these seemingly being unrelated to periodic changes in scattering geometry associated with the binary nature of the star. From studies of the p(λ)...
متن کاملThe Double-Mode Cepheid V371 Persei Redux
A metallicity of 1⁄2Fe=H 1⁄4 0:05 to 0:40 was derived from four spectra of the peculiar beat Cepheid V371 Per. This conflicts with previous estimates ranging from 0:7 to 1:0 based on the period ratio. It is suggested that the discrepancy may be resolved by assuming near solar metallicity but a low mass. This is in accord with a suggestion by Sandage and Tammann that the AHB3 (or BL Her) stars a...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1907
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19071741903