نتایج جستجو برای: 1806
تعداد نتایج: 1066 فیلتر نتایج به سال:
In this study, as a result of field studies conducted in Edirne province the Marmara Region, Türkiye between March 2021 and June 2022, totally 18 species 11 genera belonging to subfamily Paederinae (Coleoptera: Staphylinidae) were recorded. conclusion new genus Lathrobiuum Gravenhorst, Lathrobium gocmeni sp. n. (Edirne, Enez) is described, illustrated, distinguished from congeners. Astenus thor...
We have obtained infrared spectra of the star suggested to be the counterpart of the soft γ-ray repeater (SGR) 1806−20. We found strong emission lines similar to those seen in the spectra of the rare Luminous Blue Variables and B[e] stars. A He I absorption line is also seen, from which we infer a spectral type O9–B2. This classification, in combination with the minimum distance of ∼ > 6 kpc in...
The recent discovery of high frequency oscillations during giant flares from the Soft Gamma Repeaters SGR 1806-20 and SGR 1900+14 may be the first direct detection of vibrations in a neutron star crust. If this interpretation is correct it offers a novel means of testing the neutron star equation of state, crustal breaking strain, and magnetic field configuration. We review the observational da...
Soft Gamma Repeaters (SGRs) undergo changes in their pulse properties and persistent emission during episodes of intense burst activity. Both SGR 1900+14 and SGR 1806−20 have shown significant changes in their spin-down rates during the last several years, yet the bulk of this variability is not correlated with burst activity. SGR 1900+14 has undergone large changes in flux and a dramatic pulse...
The Belfast Medical Society – a forerunner of the Ulster Medical Society – was founded in 1806. Following the Act of Union, in 1801, Ireland lost its own Parliament but Dublin remained the administrative capital of the country. Indeed, at that time, many regarded Dublin as the second city in the Empire. It was only natural that all the seats of learning – University and College – had been estab...
The brightest giant flare from the soft γ-ray repeater (SGR) 1806-20 was detected on 2004 December 27. The isotropic-equivalent energy release of this burst is at least one order of magnitude more energetic than those of the two other SGR giant flares. Starting from about one week after the burst, a very bright (∼ 80 mJy), fading radio afterglow was detected. Follow-up observations revealed the...
The spectra of the quiescent counterparts to the Soft Gamma-Ray Repeaters SGR 1900+14 and SGR 1806–20 peak in the infrared. Their infrared spectra appear to contain several components: the photospheric emission from star(s) dominates at shorter wavelengths, a bright point source dominates at 25 μm, while an extended source dominates at 60 μm. However, we show here that these counterparts were n...
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