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The Ongoing Importance of Followup Observations
Jennifer Yee
Unique Advantages
• No set observing strategyCan choose targets, cadence, bands
• More sites better longitudinal coverage
OGLE
MOA
Wise
OGLE
MOA
Wise
OGLE
CTIO
FCOAOMAOKumeu
VLO
MOA
PossumTuritea
PESTCraigie
KKO
WiseWeizmann
IAC80
OPD
Science Opportunities
• High-magnification Events– Dense observations– Terrestrial parallax
• Events early and late in the season
• Events in low-cadence fields
• Multi-band information (particularly IR)
5988 5990 5992 5994
OGLE-2012-BLG-0026
Han et al., 2013, ApJL
Detection Threshold
Beaulieu et al. 2006, Nature, 439, 437Yee et al. 2012, ApJ, 755, 102
MOA-2011-BLG-293 OGLE-2005-BLG-390
Dong et al. 2009
MOA-2007-BLG-400
OGLE-2007-BLG-224
MOA-2010-BLG-523
Gould et al. 2013 ApJ
MOA-2008-BLG-310
Science Opportunities
• High-magnification Events– Dense observations– Terrestrial parallax
• Events early and late in the season
• Events in low-cadence fields
• Multi-band information (particularly IR)