منابع مشابه
Some Properties of rw-Sets and rw-Continuous Functions
In 1937, Stone [6] introduced and investigated the regular open sets. These sets are contained in the family of open sets since a set is regular open if it is equal to the interior of its closure. In 1978, Cameron [2] also introduced and investigated the concept of a regular semiopen set. A set A is regular semiopen if there is a regular open set U such that U ⊆ A ⊆ U . In 2007, a new class of ...
متن کاملFuzzy rw-Connectedness and Fuzzy rw-Disconnectedness in Fuzzy Topological Spaces
In this paper, using the concept of fuzzy rw-open set we shall define various notions of fuzzy rw-connectedness and fuzzy rw-disconnectedness in fuzzy topological spaces and some of their properties and characterizations of such spaces are also investigated.
متن کاملThe three-body system V505 Sagittarii
It is known that the period of the eclipsing binary V 505 Sgr changes, and that the changes can be explained at least partly by a light-time effect. The system is also known as a speckle binary. In this paper parameters of the third body orbit are suggested in order to explain both sets of data. Some discrepancies in the size of the orbit and radial velocity data remain. Next periastron passage...
متن کاملNova Sagittarii 1994 # 1 ( V 4332 Sagittarii ) : The Discovery and Evolution of an Unusual Luminous 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 کاملSpitzer Observations of V4332 Sagittarii: Detection of Alumina Dust
We present broad-band 24, 70 and 160 μm photometry, 5-35 μm and 55-90 μm spectra of the eruptive variable V4332 Sgr from Spitzer observations. The distinguishing feature of the 5-35 μm spectrum is an unusually broad absorption feature near 10 μm at the position generally associated with silicate-rich dust. Through radiative transfer modeling, we show that this broad feature cannot arise from si...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1923
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/84.1.34