1 / 27

The MOA Project 2013 Observing Season

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

havily
Télécharger la présentation

The MOA Project 2013 Observing Season

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 : 8kx10k 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) https://it019909.massey.ac.nz/moa/

  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 = 3×10-4t* 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 = 3×10-4s = 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 = 5×10-4s = 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 = 2×10-3s = 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 = 4×10-3s = 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 ×10-3s = 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 = 3×10-3s = 0.88 or q = 6×10-3s = 0.96

  16. High Magnification Alerts • 26 high mag alerts based in part on MOA data • MOA-2013-BLG-063 • MOA-2013-BLG-126 • MOA-2013-BLG-145/146 • MOA-2013-BLG-220 • MOA-2013-BLG-246 • OGLE-2013-BLG-0341/MOA-2013-BLG-260 • MOA-2013-BLG-067 • MOA-2013-BLG-299/OGLE-2013-BLG-0640 • OGLE-2013-BLG-0674/MOA-2013-BLG-346 • OGLE-2013-BLG-0488/MOA-2013-BLG-355 • OGLE-2013-BLG-0446/MOA-2013-BLG-306 • OGLE-2013-BLG-0860/MOA-2013-BLG-411 • OGLE-2013-BLG-0798/MOA-2013-BLG-432 • MOA-2013-BLG-456 • MOA-2013-BLG-460 • OGLE-2013-BLG-1066/MOA-2013-BLG-471 • OGLE-2013-BLG-1114/MOA-2013-BLG-485 • MOA-2013-BLG-498 • OGLE-2013-BLG-1177/MOA-2013-BLG-505 • MOA-2013-BLG-524 • MOA-2013-BLG-557 • OGLE-2013-BLG-1259/MOA-2013-BLG-528 • OGLE-2013-BLG-0911/MOA-2013-BLG-551 • MOA-2013-BLG-611 • MOA-2013-BLG-650 • OGLE-2013-BLG-1868/MOA-2013-BLG-655 Likelyplanetaryevents in red (notalleventschecked) 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 email review)

  17. High Mag Alerts MOA-2013-BLG-063 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-346 OGLE-2013-BLG-0446/MOA-306 planet

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

  21. High Mag Alerts OGLE-2013-BLG-0798/MOA-432 MOA-2013-BLG-460

  22. High Mag Alerts OGLE-2013-BLG-1066/MOA-471 OGLE-2013-BLG-1114/MOA-485

  23. High Mag Alerts MOA-2013-BLG-498 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-611 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

More Related