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Robotic visible-light laser adaptive opticsChristoph Baranec (PI), Reed Riddle, Nicholas Law, A. N. Ramaprakash, Shriharsh Tendulkar, Khanh Bui, Mahesh Burse, Pravin Chordia, Hillol Das, Richard Dekany, Shri Kulkarni & Sujit Punnadi

Robo-AO on the 1.5-mat Palomar Observatory

The Robo-AO project is a collaboration between Caltech Optical Observatories and the Inter-University Centre for Astronomy and Astrophysics. It is partially funded by the National Science Foundation under grants AST-0906060, AST-0960343 and AST-1207891, the Office of Naval Research under grant N00014-11-1-0903, by the Mount Cuba Astronomical Foundation, by a gift from Samuel Oschin and by the Indo-US Science and Technology Forum. AO4ELT3, Florence, Italy, May 2013.

414 observations , executed over 2.5 nights, of stars in the search for (sub)-stellar companions.Each square represents a 3’’ x 3’’ area, and 90s of integration in i-band (λ = 765 nm), sufficient to

reach the photon noise floor and detect companions at 5-magnitudes within 0.2’’.

Telescope (Instrument)

Survey type λ Method Targets (#) Time Reference

MMT (Aries) &

Hale (PHARO)

Kepler KOI J-Ks NGS AO 90 12 nights Adams, et al. 2012

Calar Alto 2.2-m (AstraLux)

Kepler KOI i-z Lucky 98 19 nights Lillo-Box, et al. 2012

P60 (Robo-AO) Kepler KOI g-r-i-z LGS AO 1050 55 hours In prep.

KeckII (NIRC2) Sub-Stellar Kp LGS AO 78 (87 obs.) 10 nights Kraus & Hillenbrand, 2012

GeminiN (NIRI) (Sub)-Stellar CH4s NGS AO 85 84 hours, no overheads

Lafreniere, et al. 2007

KeckII (NIRC2) & Hale (PHARO)

(Sub)-Stellar Ks NGS AO 266 47 nights Metchev & Hillenbrand, 2009

SOAR (HRCam) (Sub)-Stellar I-y AO+Speckle 639 16 nights Hartkopf, et al. 2012

Calar Alto 2.2-m & NTT (2xAstraLux)

(Sub)-Stellar i-z Lucky 761 300 hours Markus, et al. 2012

P60 (Robo-AO) (Sub)-Stellar r-i-z LGS AO 3000+ 168 hours In prep.

Robo-AO is the only current LGS AO system which meets ELT

overhead requirements:

Robo-AO setup time: 50-60 sTMT requirement for science target-to-

target transition time:

< 5 minutes (REQ-1-OCD-3020)

GMT LTAO acquisition requirement:

< 5 min; 3 min goal (AO-0978)

• Keck LGS overhead: 5-10 minutes (Wizinowich, 2012)• Subaru LGS overhead: 11-16 minutes (Minowa, et al. 2012)• GEMINI GeMS overhead: 16-35 minutes (Neichel, et al. 2012)

• The first autonomous laser adaptive optics and science system operating on sky

• Visible-light imaging, ~0.1’’ angular resolution

• Pilot-safe 12W UV laser guide star

• ‘All-sky’ space-asset avoidance

• 58 nights on sky at the 1.5-m telescope at Palomar Observatory

• Over 6,400 robotic laser AO observations executed!!!

• Replication cost of ~USD1M

• Infrared instrumentation on its way

UV laser propagation

http://robo-ao.org