==========================================================================
J/other/RAA/17.20 V977 Cep and V982 Cep long-term photometry (Ibryamov+, 2017)
The following files can be converted to FITS (extension .fit or fit.gz)
stars.dat table1.dat table2.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/other/RAA/17.20
==========================================================================
drwxr-xr-x 91 cats archive 4096 Apr 16 16:21 [Up]
drwxr-xr-x 3 cats archive 334 Jan 12 2023 [TAR file]
-rw-r--r-- 1 cats archive 493 Dec 19 2022 .message
-r--r--r-- 1 cats archive 5622 Feb 28 2017 ReadMe
-rw-r--r-- 1 cats archive 215 Aug 6 2020 +footg5.gif
-rw-r--r-- 1 cats archive 2080 Aug 6 2020 +footg8.gif
-r--r--r-- 1 cats archive 80 Feb 28 2017 stars.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 9267 Feb 28 2017 table1.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 10629 Feb 28 2017 table2.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :J/other/RAA/17.20 V977 Cep and V982 Cep long-term photometry (Ibryamov+, 2017)
================================================================================
Long-term photometric behavior of the PMS stars V977 Cep and V982 Cep in the
vicinity of NGC 7129.
Ibryamov S.I., Semkov E.H., Milanov T.R., Peneva S.P.
<Res. Astron. Astrophys., 17, 20 (2017)>
=2017RAA....17...20I (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Stars, variable ; Stars, pre-main sequence ; Photometry, UBVRI
Keywords: stars: pre-main sequence - star: variable: T Tauri -
stars: individual (V977 Cep, V982 Cep)
Abstract:
Long-term BVRI photometric light curves of the pre-main sequence stars
V977 Cep and V982 Cep during the period from 2000 October to 2016
August are presented. The stars are located in the vicinity of the
reflection nebula NGC 7129. Our photometric data show that both stars
exhibit strong photometric variability in all optical passbands, which
is typical for Classical T Tauri stars. Using our observational data
we analyze the reasons for the observed brightness variations. In the
case of V977 Cep we identify previously unknown periodicity in its
light curve.
Description:
BVRI photometric data of V977 Cep and V982 Cep during the period from
2000 October to 2016 August are presented. The CCD observations were
carried out with the 50/70-cm Schmidt and the 60-cm Cassegrain
telescopes administered by Rozhen National Astronomical Observatory in
Bulgaria. The observations were performed with four different types of
CCD cameras: SBIG ST-8, SBIG STL-11000M and FLI PL16803 on the
50/70-cm Schmidt telescope, and FLI PL09000 on the 60-cm Cassegrain
telescope. All frames were taken through a standard Johnson-Cousins
set of filters. All obtained frames are dark frame subtracted and flat
field corrected. The photometric data were reduced using subroutine
DAOPHOT in the IDL software package. All data were analyzed using the
same aperture, which was chosen to have a 6-arcsec radius and
background annulus from 10-arcsec to 15-arcsec. As a reference
sequence we used the BVRI comparisons reported in Semkov
(2002IBVS.5214....1S; 2003IBVS.5373....1S). The average value of the
errors in the reported magnitudes are 0.01-0.02mag for the I- and
R-band data, and 0.02-0.03mag for the V- and B-band data.