J/PAZh/32/737 UBV light curve and spectroscopy of StHa62 (Arkhipova+, 2006) ================================================================================ Spectroscopy and photometry of the protoplanetary nebula candidate StHa62 = IRAS 07171+1823. Arkhipova V.P., Klochkova V.G., Chentsov E.L., Esipov V.F., Ikonnikova N.P., Komissarova G.V. =2006PAZh...32..737A =2006AstL...32..661A ================================================================================ ADC_Keywords: Planetary nebulae; Photometry, UBV; Spectroscopy 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 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 a quasi-period of ~2800-days. Low-resolution spectroscopy performed in 1994-2005 has revealed significant variability of the Balmer and Paschen hydrogen emission lines as well as the HeI and OI lines. Equivalent widths are given for the HI, HeI, OI, and FeII lines. Correlation has been found between the star's photometric variability and the hydrogen line intensities. Objects: ------------------------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------------------------- 07 20 01.614 +18 17 26.47 StHA 62 = PN G199.4+14.3 = IRAS 07171+1823 ------------------------------------------------------------------------- File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table3.dat 61 48 Parameters of individual lines in the spectrum of StHa62 table7.dat 42 50 UBV observations of StHa62 -------------------------------------------------------------------------------- See also: J/A+A/385/884 : BVRIJHK photometry of 27 post-AGB candidates (Fujii+, 2002) Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- El ? Element 9 A1 --- n_El Note to Element (1) 10- 12 A3 --- Rem Remarks to observed parameters 15- 21 F7.2 0.1nm Lambda Wavelength 23- 27 F5.2 --- r1999 ? Residual intensity of Mar. 6 1999 observation 28 A1 --- u_r1999 Uncertainty flag on r1999 29 A1 --- n_r1999 [#] Saturated line 31- 33 I3 km/s Vr1999 ? Heliocentric radial velocity of Mar.6 1999 observation 34 A1 --- u_Vr1999 ? Uncertainty flag on Vr1999 37- 42 F6.3 --- r2000 ? Residual intensity of Apr.23 2000 observation 43 A1 --- u_r2000 Uncertainty flag on r2000 44 A1 --- n_r2000 [#] Saturated line 46- 47 I2 km/s Vr2000 ? Heliocentric radial velocity of Apr.23 2000 observation 48 A1 --- u_Vr2000 Uncertainty flag on Vr2000 51- 55 F5.2 --- r2002 ? Residual intensity of Dec. 2 2002 observation 56 A1 --- u_r2002 Uncertainty flag on r2002 59- 60 I2 km/s Vr2002 ? Heliocentric radial velocity of Dec.2 2002 observation 61 A1 --- u_Vr2002 Uncertainty flag on Vr2002 -------------------------------------------------------------------------------- Note (1): Notes as follows: * = profile of P Cyg min = minimal values of parameters max = maximal values of parameters -------------------------------------------------------------------------------- Byte-by-byte Description of file: table7.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 I7 d JD Julian date 9- 14 F6.3 mag Umag U magnitude 16- 21 F6.3 mag Bmag B magnitude 23- 28 F6.3 mag Vmag V magnitude 30- 35 F6.3 mag U-B U-B color index 37- 42 F6.3 mag B-V B-V color index -------------------------------------------------------------------------------- ================================================================================ (End) Veta Avedisova [INASAN] 11-Apr-2007