1. The MOA Project 2013 Observing Season
David Bennett
University of Notre Dame

2. MOA-II 1.8m telescope （New Zealand/Mt. John Observatory at NZ, 44S ）
Mirror : 1.8m
CCD : 8k　x　10k pix.
FOV : 2.2 deg.2
- Allows high cadence monitoring

3. MOA Observing Strategy
50 deg.2(20Mstars)
2.2 deg.2 per field
1obs./night.(>MJup)
1obs./95min.(Mjup)
1obs./47min. (Mnep)
1obs./15min. (M)
G.C.
Real time photometry and alerts
668 microlensing events (2013)

4. MOA-2009-BLG-266
parallax uncertainty is asymmetric

5. Summary of Planetary Results
10 events with planetary signals in MOA data
MOA-2013-BLG-040/OGLE-2013-BLG-0077*
MOA-2013-BLG-093*
MOA-2013-BLG-220
MOA-2013-BLG-605/OGLE-2013-BLG-1835
OGLE-2013-BLG-0132/MOA-2013-BLG-148*
OGLE-2013-BLG-0341/MOA-2013-BLG-26
OGLE-2013-BLG-1125/MOA-2013-BLG-584
OGLE-2013-BLG-1271/MOA-2013-BLG-579*
OGLE-2013-BLG-1721/MOA-2013-BLG-618
OGLE-2013-BLG-1761/MOA-2013-BLG-651
Many anomalies not detected in real time (*)
Plan to fix this in 2014

6. MOA-2013-BLG-040/OGLE-0077
MOA+OGLE survey discovery - Not alerted in real time q = 3×10-4 t* poorly constrained

7. MOA-2013-BLG-093
MOA+OGLE survey discovery - No real-time alert q = 3×10-3

8. MOA-2013-BLG-220
High mag event, alerted by MOA, covered by uFUN, Robonet, MOA and OGLE q = 3×10-3

9. MOA-2013-BLG-605/OGLE-1835
Planetary anomaly alerted as single lens event in real time – understood as planetary event when it began brightening again. q = 3×10-4 s = 2.3 likely parallax signal

10. OGLE-2013-BLG-0132/MOA-148
1st planetary peak missed by MOA real-time analysis. Identified by Han with OGLE data from the next night, but not follow-up data obtained q = 5×10-4 s = 1.14 likely parallax signal

11. OGLE-2013-BLG-0341/MOA-260
Identified by Gould & Han as likely planetary event before high-mag – binary star system with planet. Gould et al. paper in preparation planet has low mass 2-3 Earth-masses.

12. OGLE-2013-BLG-1125/MOA-584
Alerted in real time by MOA, but toward the end of the planetary anomaly. But, peak observed by Robonet, μFUN. q = 2×10-3 s = 1.05 strong parallax

13. OGLE-2013-BLG-1271/MOA-579
MOA+OGLE survey discovery. Not identified in real time Strong cusp crossing in MOA data q = 4×10-3 s = 1.45

14. OGLE-2013-BLG-1721/MOA-618
Planetary signal in OGLE data identified by Han “Manual alert” used to produce MOA light curve q = 1.3 ×10-3 s = 0.96

15. OGLE-2013-BLG-1761/MOA-651
Anomaly identified in real time by MOA, but no follow-up data. (Late in season – Sep. 10) q = 3×10-3 s = 0.88 or q = 6×10-3 s = 0.96

16. High Magnification Alerts
26 high mag alerts based in part on MOA data
MOA-2013-BLG-063
OGLE-2013-BLG-1066/MOA-2013-BLG-471
MOA-2013-BLG-126
OGLE-2013-BLG-1114/MOA-2013-BLG-485
MOA-2013-BLG-145/146
MOA-2013-BLG-498
MOA-2013-BLG-220
OGLE-2013-BLG-1177/MOA-2013-BLG-505
MOA-2013-BLG-246
MOA-2013-BLG-524
OGLE-2013-BLG-0341/MOA-2013-BLG-260
MOA-2013-BLG-557
MOA-2013-BLG-067
OGLE-2013-BLG-1259/MOA-2013-BLG-528
MOA-2013-BLG-299/OGLE-2013-BLG-0640
OGLE-2013-BLG-0911/MOA-2013-BLG-551
OGLE-2013-BLG-0674/MOA-2013-BLG-346
MOA-2013-BLG-611
OGLE-2013-BLG-0488/MOA-2013-BLG-355
MOA-2013-BLG-650
OGLE-2013-BLG-0446/MOA-2013-BLG-306
OGLE-2013-BLG-1868/MOA-2013-BLG-655
OGLE-2013-BLG-0860/MOA-2013-BLG-411
OGLE-2013-BLG-0798/MOA-2013-BLG-432
Likely planetary events in red (not all events checked)
MOA-2013-BLG-456
MOA-2013-BLG-460
MOA real-time photometry means that most high mag alerts have most recent data from MOA
7 other high mag alerts with OGLE data only
(according to my possibly incomplete review)

17. High Mag Alerts
MOA-2013-BLG MOA-2013-BLG-220 planet!

18. High Mag Alerts
OGLE-2013-BLG-0341 (planet) MOA-2013-BLG-299/OGLE-0640

19. High Mag Alerts
OGLE-2013-BLG-0674/MOA OGLE-2013-BLG-0446/MOA planet

20. High Mag Alerts
OGLE-2013-BLG-0860/MOA-411

21. High Mag Alerts
OGLE-2013-BLG-0798/MOA MOA-2013-BLG-460

22. High Mag Alerts
OGLE-2013-BLG-1066/MOA OGLE-2013-BLG-1114/MOA-485

23. High Mag Alerts
MOA-2013-BLG MOA-2013-BLG-557

24. High Mag Alerts
OGLE-2013-BLG-1259/MOA-528 OGLE-2013-BLG-0911/MOA-511 possible planet

25. High Mag Alerts
MOA-2013-BLG OGLE-2013-BLG-1868/MOA-655

26. Improvements Planned for 2014
Problems:
missed planetary anomaly alerts
likely missed short, “rogue planet” events
Develop remote anomaly alert capability
Reduce false alarms in real-time event alert system
many false alarms are due to image artifacts that can be removed
Closer cooperation with LCOGT? – particularly SAAO site which can immediately follow possible anomalies seen by MOA
Arrange for planetary signals and good weather in the middle of the season when it is easier to collect data