Theoretical light curve for the recurrent nova U Scorpii

Mariko Kato

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Sequences of steady mass loss and static solutions are constructed for the envelopes on a 1.377 M white dwarf as models of the decay phase of novae. The envelopes are assumed to have a uniform chemical composition with X = 0.73, 0.33, 0.11, and 0.05 and Z = 0.02 and 0.03 for hydrogen and heavy elements by weight, respectively. An excellent agreement with the observed light curve is obtained by the hydrogen deficient models of X < 0.33, which is consistent with the observed helium enrichment. The distance to U Sco is obtained, from the comparison between the theoretical and observed visual magnitude, to be 5.2 kpc for the model X = 0.11 and the permitted range is 3.3 < D < 8.6 kpc.

Original languageEnglish
Pages (from-to)277-280
Number of pages4
JournalAstrophysical Journal
Issue number1
Publication statusPublished - 1990 May 20
Externally publishedYes


  • Stars: abundances
  • Stars: individual (U Sco)
  • Stars: interiors
  • Stars: novae

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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