An optical time-resolved spectroscopic study of SS Cygni. 1: Quiescence

Bibcode
1994A&A...291..455M
Martinez-Pais, I. G.; Giovannelli, F.; Rossi, C.; Gaudenzi, S.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 2, p. 455-467

Advertised on:
11
1994
Number of authors
4
IAC number of authors
2
Citations
34
Refereed citations
30
Description
In this work we analyze time-resolved spectra of SS Cygni in quiescence. The geometrical and orbital fundamental parameters of the system are determined. When in the data the contribution of the secondary star is removed some weak emission lines and a Fe I absorption line become clearly visible. We detect strong emission from the secondary star due to being heated by irradiation from the inner regions of the disk. Evidence for non-keplerian regions in the accretion disk is also found.
Type
Refereed
Main sequence stars
White dwarf stars
Radial velocity

It may interest you

  • Refereed
    Characterisation at Cryogenic Temperatures of an Attenuator for an Application of Astrophysical Instrumentation with MKIDs
    The use of non-cryogenic certified commercial electronics for cryogenic applications may be attractive due to their cost and availability, but it also carries risks related to reliability, performance and thermal compatibility. The decision to use commercial components that are not certified for cryogenics instead of components specifically
    Rodríguez Ramos L.F. et al.

    Advertised on:

    12
    2024
  • Refereed
    Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission
    Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active
    Takase, Y. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024JCAP...12..036T
    Citations
    0
  • Refereed
    The Pristine survey: XXIV. The Galactic underdogs: Dynamic tales of a Milky Way metal-poor population
    Context. Metal-poor stars hold key information on the early Milky Way. Through the identification and characterisation of substructures, one can understand internal mechanisms (including merger and accretion events), which are indispensable to reconstruct the formation history of the Galaxy. Aims. To allow an investigation of a population of very
    de La Vernhe, Isaure González Rivera et al.

    Advertised on:

    12
    2024
    Bibcode
    2024A&A...692A.131D
    Citations
    0