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1.
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We describe the results of the world-wide observing campaign of the highly eccentric Be binary system d Scorpii 2011 periastron passage which involved professional and am[...]
2013 | Text | Faculty and Staff Works |
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2.
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We present the results of our observations of the poorly-studied emission-line star AS 314 which include high-resolution spectroscopy, obtained at the 6 -meter telescope [...]
2000 | Text | English | Faculty and Staff Works |
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3.
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Aims. We study the enigmatic B[e] star MWC?300 to investigate its disk and binary with milli-arcsecond-scale angular resolution. Methods. We observed MWC?300 with the VLT[...]
2012 | Text | Faculty and Staff Works |
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4.
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We present an atlas of spectra of 5 emission-line stars: the low-luminosity luminous blue variables (LBVs) HD 168625 and HD 160529, the white hypergiants (and LBV candida[...]
2003 | Text | English | Faculty and Staff Works |
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5.
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We selected a group of 11 B-type emission-line stars with large IR excesses, which show a steep flux decrease towards longer wave-lengths. Analysis of their observational[...]
2000 | Text | English | Faculty and Staff Works |
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6.
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We present the results of high-resolution spectroscopic observations of the bright Be star and(gamma) Cas obtained at the Ritter Observatory of the University of Toledo i[...]
2002 | Text | English | Faculty and Staff Works |
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7.
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We present the results of bispectrum speckle interferometry of the B[e] star MWC 349A obtained with the SAO 6 m telescope. Our diffraction-limited J-, H-, and K-band imag[...]
2008 | Text | English | Faculty and Staff Works |
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8.
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We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-termoptical brightening in 2006–2013. Based on our earl[...]
2014 | Text | Faculty and Staff Works |
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9.
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We report the discovery of two new Galactic candidate luminous blue variable (LBV) stars via detection of circular shells (typical of confirmed and candidate LBVs) and fo[...]
2012 | Text | English | Faculty and Staff Works |
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10.
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Aims. The work is aimed at studying the circumstellar disk of the bright classical binary Be star p Aqr. Methods. We analysed variations of a double-peaked profile of the[...]
2013 | Text | Faculty and Staff Works |
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11.
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A sample of Be stars with large far-infrared excesses detected by IRAS is selected and their high-resolution IRAS images are examined. The far-infrared emission from most[...]
2000 | Text | English | Faculty and Staff Works |
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12.
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We present the results of a study of spectral features and the velocity field in the atmosphere and circumstellar envelope of the yellow hypergiant V1302 Aql, the optical[...]
2016 | Text | English | Faculty and Staff Works |
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13.
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The results of high-resolution optical spectroscopy obtained for a recently suggested LBV candidate, MWC 314, are presented. Photospheric lines mostly of N ii and S ii ha[...]
1998 | Text | English | Faculty and Staff Works |
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14.
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Context. MWC?314 is one of the most luminous stars in the Milky Way. Its fundamental parameters are similar to those of luminous blue variables (LBVs), although no large [...]
2016 | Text | English | Faculty and Staff Works |
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15.
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We present our recent photometric and spectroscopic observations of the bright classical Be star and#x03C0 Aquarii and analyse those available in literature. This star cu[...]
2000 | Text | English | Faculty and Staff Works |
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16.
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Z CMa, a remarkable star, has been attracting the attention of observers for many years. Its photometric behaviour summarized at least twice recently (Covino et al., 1984[...]
1993 | Text | English | Faculty and Staff Works |
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17.
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LS II +22(degrees)8 was discovered by Stock et al. (1960) as a possible luminous early-type star with emission in the Ha line. Later it was listed in the Henize (1976) ca[...]
1999 | Text | English | Faculty and Staff Works |
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18.
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We present the results of optical and near-IR spectroscopic and broadband multicolour photometric observations of the emission-line star AS 381. Its properties were found[...]
2002 | Text | Faculty and Staff Works |
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19.
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A new sample of possibly massive early-type emission-line stars (METELS) based on the previous lists of peculiar Be stars is presented. It consists of 36 objects divided [...]
1995 | Text | English | Faculty and Staff Works |
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20.
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We present self-consistent solutions for the disk structure of classical Be stars. Our disk model is hydrostatically supported in the vertical direction and the radial st[...]
2006 | Text | English | Faculty and Staff Works |
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21.
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Aims. The study is aimed at discovering new objects with the B[e] phenomenon in the Large Magellanic Cloud.Methods. We report medium-resolution optical spectroscopic obse[...]
2014 | Text | English | Faculty and Staff Works |
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22.
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The results of multicolor photometric and low resolution spectroscopic observations of 9 Herbig Ae/Be candidate stars are reported. This sample includes two newly recogni[...]
1999 | Text | English | Faculty and Staff Works |
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23.
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We present multiwavelength (optical, IR, radio) observations of CI Cam, the optical counterpart to the transient X-ray source XTE J0421+560. Pre-outburst quiescent observ[...]
2000 | Text | Faculty and Staff Works |
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24.
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Our spectroscopic (with resolution R = 75 000) and spectropolarimetric (R = 15 000) observations with the 6-m telescope of the Special Astrophysical Observatory have enab[...]
2004 | Text | English | Faculty and Staff Works |
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25.
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The pulsation activity of small-amplitude Cepheid Alpha UMi (Polaris) during the period of its radial velocity observations has been analyzed. In the 20th century, Polari[...]
2017 | Text | English | Faculty and Staff Works |
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