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J/A+A/584/A40       2MASS J22560844+5954299 spectra         (Kjurkchieva+, 2015)

2MASS J22560844+5954299: the newly discovered cataclysmic star with the deepest eclipse. Kjurkchieva D., Khruzina T., Dimitrov D., Groebel R., Ibryamov S., Nikolov G. <Astron. Astrophys. 584, A40 (2015)> =2015A&A...584A..40K (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Spectra, red Keywords: binaries: eclipsing - stars: individual: 2MASS J22560844+5954299 - novae, cataclysmic variables - white dwarfs - accretion, accretion disks Abstract: The SW Sex stars are assumed to represent a distinguished stage in CV evolution, making it especially important to study them. We discovered a new cataclysmic star and carried out prolonged and precise photometric observations, as well as medium- resolution spectral observations. Modelling these data allowed us to determine the physical parameters and to establish its peculiarities. To obtain a light curve solution we used model whose emission sources are a white dwarf surrounded by an accretion disk with a hot spot, a gaseous stream near the disk's lateral side, and a secondary star filling its Roche lobe. The obtained physical parameters are compared with those of other SW Sex-subtype stars. Description: The spectral observations of 2MASS J22560844+5954299 were carried by the 2m RCC telescope equipped with the focal reducer FoReRo 2 and grism with 720-lines/mm. The resolution of the spectra is 2pix or 2.7Å; and they cover the range 5600-7000Å. Most of the spectra have a S/N of 16-22 excluding those at the eclipse where the S/N value is around 7. The spectra were reduced using IRAF packages for bias subtraction, flat-fielding, cosmic ray removal, and one-dimensional spectrum extraction. Objects: ------------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------------- 22 56 08.44 +59 54 30.0 J2256 = 2MASS J22560844+5954299 ------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 89 22 List of fits spectra sp/* 0 22 Individual fits spectra
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Nx Number of measurements 6- 15 A10 "DD/MM/YYYY" Observation date 17- 24 A8 "h:m:s" Obs.time Time of observation 26- 29 I4 0.1nm blambda Lower value of wavelength interval 31- 34 I4 0.1nm Blambda Upper value of wavelength interval 36 I1 0.1nm dlambda Wavelength resolution 38- 39 I2 Kibyte size Size of the file 41- 49 A9 --- FileName Name of the fits file in subdirectory sp 51- 89 A39 --- Title Title of the fits file
Acknowledgements: Diana Kjurkchieva, kyurk(at)
(End) Patricia Vannier [CDS] 04-Nov-2015
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