Access to Astronomical Catalogues

← Click to display the menu
J/PAZh/32/662       Photometric Variability of HD 51585      (Arkhipova+, 2006)

Spectroscopic and Photometric Variability of HD 51585 As a Manifestation of Stellar Wind. Arkhipova V.P., Ikonnikova N.P., Komissarova G.V., Esipov V.F. <Pis'ma Astron. Zh. 32, 662 (2006)> =2006PAZh...32..662A =2006AstL...32..594A
ADC_Keywords: Stars, Be; Spectroscopy; Photometry, UBV Abstract: Photoelectric observations of HD 51585 (OY Gem), a B[e] star with an infrared excess and a candidate for protoplanetary nebulae, obtained with a 60-cm telescope at the Crimean Station of the Sternberg Astronomical Institute in 1992-2005 are presented. The star exhibited rapid irregular brightness variations with amplitudes from 0.1mag in the V band to 0.2mag in the U band within the observing season as well as slow systematic variations with amplitudes from 0.3mag in the V band to 0.65mag in the U band and with a quasi-period of ∼2800days. The B-V color index varied within 0.1mag and did not follow the slow systematic brightness variations, while U-B correlated with the U brightness and varied between 0.7mag at maximum light and 0.35mag at minimum light. Our low-resolution spectroscopy performed in 1994-2005 has revealed significant variability of the Balmer and Paschen hydrogen emission lines as well as the He I and OI lines. Equivalent widths are given for the HI, He I, OI, and Fe II lines; a correlation has been found between the star's photometric variability and the hydrogen line intensities. Our joint analysis of the photometric and spectroscopic data suggests that variations in a strong stellar wind are responsible for the variability of the star. Objects: ------------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------------- 06 58 30.3 +16 19 25 HD 51585 = V* OY Gem = EM* MWC 162 ------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 41 113 UBV observations of HD 51585
See also: J/A+AS/117/281 : Spectroscopy of HD 51585 (= OY Gem) (Jaschek+, 1996) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 I7 d JD Julian date 9- 14 F6.3 mag Vmag V magnitude 16- 21 F6.3 mag Bmag B magnitude 23- 28 F6.3 mag Umag U magnitude 30- 34 F5.3 mag B-V B-V color index 36- 41 F6.3 mag U-B U-B color index

(End) Veta Avedisova (INASAN) 20-Feb-2007
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact