J/other/RAA/14.1264 V350 Cep UBVRI long-term photometry (Ibryamov+, 2014)
A long-term UBVRI photometric study of the pre-main sequence star V350 Cep.
Ibryamov S., Semkov E., Peneva S.
<Res. Astron. Astrophys., 14, 1264 (2014)>
=2014RAA....14.1264I 2014RAA....14.1264I
ADC_Keywords: Stars, variable ; Stars, pre-main sequence ; Photometry, UBVRI
Keywords: stars: pre-main sequence - star: variable: T Tauri -
stars: individual (V350 Cep)
Abstract:
Results from UBVRI optical photometric observations of the pre-main
sequence star V350 Cep during the period 2004-2014 are presented. The
star was discovered in 1977 due to its remarkable increase in
brightness by more than 5mag (R). In previous studies, V350 Cep is
considered to be a potential FUor or EXor eruptive variable. Our data
suggest that during the period of observations the star keeps its
maximum brightness with low amplitude photometric variations. Our
conclusion is that V350 Cep is probably an intermediate object between
FUors and EXors, similar to V1647 Ori.
Description:
UBVRI photometric data of the pre-main sequence star V350 Cep during
the period 2004-2014 are presented. The CCD observations were
performed in two observatories with four telescopes: the 2-m
Ritchey-Chretien-Coude (RCC), the 50/70-cm Schmidt and the 60-cm
Cassegrain telescopes of the Rozhen National Astronomical Observatory
(Bulgaria) and the 1.3-m Ritchey-Chretien (RC) telescope of the
Skinakas Observatory of the University of Crete (Greece). The
observations were performed with seven types of CCD cameras. All
frames were taken through a standard Johnson- Cousins set of filters.
All data were analyzed using the same aperture, which was chosen to
have a 6" radius (while the background annulus was taken from 10" to
15"). The mean value of the errors in the reported magnitudes are:
0.01-0.02mag for I- and R-band data, 0.02-0.04mag for V-band data,
0.02-0.05mag for B-band data and 0.04-0.07mag for U-band data.
Objects:
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RA (2000) DE Designation(s)
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21 43 00.01 +66 11 28.0 V350 Cep = HBC 732
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 81 244 Photometric CCD observations of V350 Cep during
the period August/2004-February/2014
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 "date" Date Date of observation ("YYYY/MMM/DD" format)
13- 23 F11.3 d JD Julian Date
25- 29 F5.2 mag Imag ? Cousins I magnitude
31- 35 F5.2 mag Rmag ? Cousins R magnitude
37- 41 F5.2 mag Vmag ? Johnson V magnitude
43- 47 F5.2 mag Bmag ? Johnson B magnitude
49- 53 F5.2 mag Umag ? Johnson U magnitude
55- 61 A7 --- Tel Telescope used (1)
63- 72 A10 --- CCD CCD used
74- 81 A8 --- Obs Name of observatory
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Note (1): Telescopes are:
2-m = 2-m Ritchey-Chretien-Coude telescope of the Rozhen National
Astronomical Observatory (Bulgaria)
60-cm = 60-cm Cassegrain telescope of the Rozhen National Astronomical
Observatory (Bulgaria)
Schmidt = 50/70-cm Schmidt telescope of the Rozhen National Astronomical
Observatory (Bulgaria)
1.3-m = 1.3-m Ritchey-Chretien telescope of the Skinakas Observatory of
the University of Crete (Greece)
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Acknowledgements:
Sunay Ibryamov, sibryamov(at)astro.bas.bg
(End) Patricia Vannier [CDS] 12-Sep-2014