• Physics
  • Published 1998

EROS 2 intensive observation of the caustic crossing of microlensing event MACHO SMC-98-1

@inproceedings{Collaboration1998EROS2I,
  title={EROS 2 intensive observation of the caustic crossing of microlensing event MACHO SMC-98-1},
  author={Eros Collaboration},
  year={1998}
}
We report on intensive photometric monitoring on 18 June 1998 of MACHO SMC-98-1, a binary-lens microlensing event seen toward the Small Magellanic Cloud (SMC). The observations cover 5.3 hours (UT 5:17 -- 10:37), and show a sharp drop of 1.8 mag during the first 1.8 hours, followed by an abrupt flattening at UT 7:08 +- 0:02. We interpret the kink at 7:08 as the end of the second caustic crossing (when the source first moved completely outside the caustic). These results indicate that mu sin(phi… CONTINUE READING

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