Optical Photometry of the Eclipsing LMC Supersoft Source CAL 87 Conferences uri icon

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abstract

  • AbstractWe present optical photometry of the eclipsing supersoft source, CAL 87. We find the eclipse structure to be stable over ~ 4 y, derive an improved ephemeris of To = HJD 2450111.5144(3)+0.442674(7)E, and see new structure in the light curve morphology.

authors

  • Southwell, KA
  • Charles, PA
  • O’Donoghue, D
  • Alcock, C
  • Allsman, RA
  • Alves, D
  • Axelrod, TS
  • Bennett, DP
  • Cook, KH
  • Freeman, KC
  • Griest, K
  • Guern, J
  • Lehner, MJ
  • Marshall, SL
  • Peterson, BA
  • Pratt, MR
  • Quinn, PJ
  • Rodgers, AW
  • Stubbs, CW
  • Sutherland, W
  • Welch, Douglas L

publication date

  • 1997