Photometry & spectroscopy of EE Cep: 2014-15 Virtual Observatory Resource

Authors
  1. Pienkowski D.
  2. Galan C.
  3. Tomov T.
  4. Gazeas K.
  5. Wychudzki P.,Mikolajewski M.
  6. Kubicki D.
  7. Staels B.
  8. Zola S.
  9. Pakonska P.
  10. Debski B.,Kundera T.
  11. Ogloza W.
  12. Drozdz M.
  13. Baran A.
  14. Winiarski M.
  15. Siwak M.,Dimitrov D.
  16. Kjurkchieva D.
  17. Marchev D.
  18. Arminski A.
  19. Miller I.,Kolaczkowski Z.
  20. Mozdzierski D.
  21. Zahajkiewicz E.
  22. Brus P.
  23. Pigulski A.,Smela T.
  24. Conseil E.
  25. Boyd D.
  26. Conidis G.J.
  27. Plauchu-Frayn I.
  28. Heras T.A.,Kardasis E.
  29. Biskupski M.
  30. Kneip R.
  31. Hambalek L.
  32. Pribulla T.
  33. Kundra E.,Nedoroscik J.
  34. Lopatovsky J.
  35. Garai Z.
  36. Rodriguez D.
  37. Kaminski T.,Dubois F.
  38. Logie L.
  39. Blanco A.Capetillo
  40. Kankiewicz P.
  41. Swierczynski E.,Martignoni M.
  42. Sergey I.
  43. Kare Trandem Qvam J.
  44. Semkov E.
  45. Ibryamov S.,Peneva S.
  46. Gonzalez Carballo J.-L.
  47. Ribeiro J.
  48. Dean S.
  49. Apostolovska G.,Donchev Z.
  50. Corp L.
  51. McDonald P.
  52. Rodriguez M.
  53. Sanchez A.
  54. Wiersema K.,Conseil E.
  55. Menke J.
  56. Sergey I.
  57. Richardson N.
  58. Published by
    CDS
Abstract

EE Cep is one of few eclipsing binary systems with a dark, dusty disk around an invisible object similar to epsilon Aur. The system is characterized by grey and asymmetric eclipses every 5.6yr, with a significant variation in their photometric depth, ranging from ~0.5mag to ~2.0mag. The main aim of the observational campaign of the EE Cep eclipse in 2014 was to test the model of disk precession (Galan et al. 2012). We expected that this eclipse would be one of the deepest with a depth of ~2m.mag. We collected multicolor observations from almost 30 instruments located in Europe and North America. This photometric data covers 243 nights during and around the eclipse. We also analyse the low- and high- resolution spectra from several instruments. The eclipse was shallow with a depth of 0m.71 in V-band. The multicolor photometry illustrates small color changes during the eclipse with a total amplitude of order ~+0.15mag in B-I color index. The linear ephemeris for this system is updated by including new times of minima, measured from the three most recent eclipses at epochs E=9, 10 and 11. New spectroscopic observations were acquired, covering orbital phases around the eclipse, which were not observed in the past and increased the data sample, filling some gaps and giving a better insight into the evolution of the H{alpha} and NaI spectral line profiles during the primary eclipse. The eclipse of EE Cep in 2014 was shallower than expected 0.71mag instead of ~2.0mag. This means that our model of disk precession needs revision.

Keywords
  1. eclipsing-binary-stars
  2. ccd-photometry
  3. infrared-photometry
  4. visible-astronomy
  5. Wide-band photometry
  6. h-alpha-photometry
  7. h-beta-photometry
  8. spectroscopy
  9. be-stars
Bibliographic source Bibcode
2020A&A...639A..23P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/639/A23
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/639/A23
Document Object Identifer DOI
doi:10.26093/cds/vizier.36390023

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/639/A23
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/639/A23
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/639/A23
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2020-07-02T07:49:17Z
Resource record created
2020-07-02T07:49:17Z
Created
2020-10-06T09:03:17Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr