منابع مشابه
Apsidal motion in southern eccentric eclipsing binaries: YY Sgr, V523 Sgr, V1647 Sgr, V2283 Sgr and V760 Sco
Several new times of minimum light recorded with photoelectric means have been gathered for the early-type eccentric eclipsing binaries YY Sgr (P = 2. d63, e = 0.16), V523 Sgr (2. d32, 0.16), V1647 Sgr (3. d28, 0.41), V2283 Sgr (3. d47, 0.49) and V760 Sco (1. d73, 0.03). The O − C diagrams are analyzed using all reliable timings found in the literature and improved values for the elements of th...
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متن کاملSgr A* and Company -multiwavelength Observations of Sgr A* and Vla Search of " Sgr A*'s " in Liners
We report first results from a multiwavelength campaign to measure the simultaneous spectrum of Sgr A* from cm to mm wavelengths. The observations confirm that the previously detected submm-excess is not due to variability; the presence of an ultracompact component with a size of a few Schwarzschild radii is inferred. In a VLA survey of LINER galaxies, we found Sgr A*-like nuclei in one quarter...
متن کاملRadio variability of Sgr
We determine the characteristics of the 7mm to 20 cm wavelength radio variability in Sgr A* on time scales from days to three decades. The amplitude of the intensity modulation is between 30 and 39% at all wavelengths. Analysis of uniformly sampled data with proper accounting of the sampling errors associated with the lightcurves shows that Sgr A* exhibits no 57or 106-day quasi-periodic oscilla...
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ژورنال
عنوان ژورنال: Annals of Emergency Medicine
سال: 2016
ISSN: 0196-0644
DOI: 10.1016/j.annemergmed.2015.11.020