J/A+A/600/A96 V407 Cyg spectral variations (Iijima+, 2017)
Spectral variations of the symbiotic star V407 Cygni around light maximum of
the secondary Mira variable in 2012.
Iijima T., Naito H.
<Astron. Astrophys. 600, A96 (2017)>
=2017A&A...600A..96I 2017A&A...600A..96I (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, cataclysmic ; Novae ; Spectroscopy
Keywords: stars: individual: V407 Cyg - novae, cataclysmic variables -
stars: symbiotic
Abstract:
The outburst of the symbiotic recurrent nova V407 Cyg in 2010 has been
studied by numerous authors. On the other hand, its spectral
variations in the quiescent stage have not been well studied yet. This
paper is probably the first report for the relation between the
pulsation of the secondary Mira variable and the temperature of the
primary hot component for V407 Cyg.
The spectral variation in the post-outburst stage has been monitored
to study the properties of this object. In the course of this work, we
found some unexpected spectral variations around the light maximum of
the secondary Mira variable in 2012. The relation between the mass
transfer in the binary system and the pulsation of the secondary Mira
variable is studied.
High- and low-resolution optical spectra obtained at the Astronomical
Observatories at Asiago were used. The photometric data depend on the
database of the VSNET.
Description:
The calibrated low- and high-resolution spectra of V407 Cyg used in
the article are presented. The spectra are given in the Fits format.
The low- dispersion spectra are named as becNNNNN.fits, and the
high-dispersion spectra as echNNNNN.fits, where NNNNN is the ID number
of the spectra given in Table 1. The sensitivity of the spectrographs
were calibrated using the spectra of the standard stars BD+40 4032 or
HD192281 obtained during the same nights of the observations. The
wavelengths are given in the heliocentric frame, and no correction is
applied for the interstellar extinction.
Objects:
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RA (2000) DE Designation(s)
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21 02 09.81 +45 46 33.0 V407 Cyg = NOVA Cyg 1936
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 141 18 List of fits spectra
fits/* . 18 Individual fits spectra
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000)
4- 5 I2 min RAm Right ascension (J2000)
7- 8 I2 s RAs Right ascension (J2000)
10 A1 --- DE- Declination sign (J2000)
11- 12 I2 deg DEd Declination (J2000)
14- 15 I2 arcmin DEm Declination (J2000)
17- 18 I2 arcsec DEs Declination (J2000)
20- 23 I4 --- Nx Number of measurements
25- 45 A21 --- Obs.Date Observation date (YYYY-MM-DDThh:mm:ss.s)
47- 50 I4 s TExp Exposure time
52- 58 F7.2 0.1nm blambda Lower value of wavelength interval
60- 66 F7.2 0.1nm Blambda Upper value of wavelength interval
68- 75 F8.6 0.1nm dlambda Wavelenght resolution
77- 80 I4 Kibyte size Size of FITS file
82- 94 A13 --- FileName Name of FITS file, in subdirectory fits
96-141 A46 --- Title Title of the FITS file
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Acknowledgements:
Takashi Iijima, takashi.iijima(at)oapd.inaf.it
(End) Patricia Vannier [CDS] 16-Jan-2017