High-Efficiency Autonomous Laser Adaptive Optics

Baranec, Christoph; Riddle, Reed; Law, Nicholas M.; Ramaprakash, A. N.; Tendulkar, Shriharsh P.; Hogstrom, Kristina; Bui, Khanh; Burse, Mahesh; Chordia, Pravin; Das, H. K.; Dekany, Richard; Kulkarni, S. R.; Punnadi, Sujit

doi:10.1088/2041-8205/790/1/l8

Cited by 104 publications

(109 citation statements)

References 34 publications

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“…The observations were performed using the Robo-AO laser adaptive optics system (Riddle et al 2012;Baranec et al 2013Baranec et al , 2014b) mounted on the Palomar 1.5 m telescope. The first robotic laser guide star adaptive optics system, the automatic Robo-AO system can efficiently perform large, high Figure 1.…”

Section: Observations 221 Robo-aomentioning

confidence: 99%

Robo-Ao Kepler Planetary Candidate Survey. Iii. Adaptive Optics Imaging of 1629 Kepler Exoplanet Candidate Host Stars

Ziegler

Law

Morton

et al. 2017

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The Robo-AO Kepler Planetary Candidate Survey is observing every Kepler planet candidate host star with laser adaptive optics imaging to search for blended nearby stars, which may be physically associated companions and/or responsible for transit false positives. In this paper, we present the results of our search for stars nearby 1629 Kepler planet candidate hosts. With survey sensitivity to objects as close as ∼0 15, and magnitude differences Δm 6, we find 223 stars in the vicinity of 206 target KOIs; 209 of these nearby stars have not been previously imaged in high resolution. We measure an overall nearby-star probability for Kepler planet candidates of  12.6% 0.9% at separations between 0 15 and 4 0. Particularly interesting KOI systems are discussed, including 26 stars with detected companions that host rocky, habitable zone candidates and five new candidate planet-hosting quadruple star systems. We explore the broad correlations between planetary systems and stellar binarity, using the combined data set of Baranec et al. and this paper. Our previous 2σ result of a low detected nearby star fraction of KOIs hosting close-in giant planets is less apparent in this larger data set. We also find a significant correlation between detected nearby star fraction and KOI number, suggesting possible variation between early and late Kepler data releases.

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Section: Observations 221 Robo-aomentioning

confidence: 99%

Robo-Ao Kepler Planetary Candidate Survey. Iii. Adaptive Optics Imaging of 1629 Kepler Exoplanet Candidate Host Stars

Ziegler

Law

Morton

et al. 2017

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“…3. Imaging follow-up of DDOIs with the Robo-AO (Baranec et al 2014) instrument at the Palomar Observatory 60 inch telescope to check for background contaminants located closer to the star than DSS can probe.…”

Section: Discussionmentioning

confidence: 99%

Disk Detective: Discovery of New Circumstellar Disk Candidates Through Citizen Science

Kuchner

Silverberg

Bans

et al. 2016

ApJ

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The Disk Detective citizen science project aims to find new stars with 22 μm excess emission from circumstellar dust using data from NASA's Wide-field Infrared Survey Explorer (WISE) mission. Initial cuts on the AllWISE catalog provide an input catalog of 277,686 sources. Volunteers then view images of each source online in 10 different bands to identify false positives (galaxies, interstellar matter, image artifacts, etc.). Sources that survive this online vetting are followed up with spectroscopy on the FLWO Tillinghast telescope. This approach should allow us to unleash the full potential of WISE for finding new debris disks and protoplanetary disks. We announce a first list of 37 new disk candidates discovered by the project, and we describe our vetting and follow-up process. One of these systems appears to contain the first debris disk discovered around a star with a white dwarf companion: HD 74389. We also report four newly discovered classical Be stars (HD 6612, HD 7406, HD 164137, and HD 218546) and a new detection of 22 μm excess around the previously known debris disk host star HD 22128.

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“…The observations were performed using the Robo-AO laser adaptive optics system (Riddle et al 2012;Baranec et al 2013Baranec et al , 2014b) mounted on the Kitt Peak 2.1 m telescope (Jensen-Clem et al 2017), masked to a 1.85 m aperture. The AO system runs at a loop rate of 1.2 kHz to correct high-order wavefront aberrations.…”

Section: Observationsmentioning

confidence: 99%

Robo-AO Kepler Survey. IV. The Effect of Nearby Stars on 3857 Planetary Candidate Systems

Ziegler

Law

Baranec

et al. 2018

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We present the overall statistical results from the Robo-AO Kepler planetary candidate survey, comprising of 3857 high-angular resolution observations of planetary candidate systems with Robo-AO, an automated laser adaptive optics system. These observations reveal previously unknown nearby stars blended with the planetary candidate host stars that alter the derived planetary radii or may be the source of an astrophysical false positive transit signal. In the first three papers in the survey, we detected 440 nearby stars around 3313 planetary candidate host stars. In this paper, we present observations of 532 planetary candidate host stars, detecting 94 companions around 88 stars; 84 of these companions have not previously been observed in high resolution. We also report 50 more-widely separated companions near 715 targets previously observed by Robo-AO. We derive corrected planetary radius estimates for the 814 planetary candidates in systems with a detected nearby star. If planetary candidates are equally likely to orbit the primary or secondary star, the radius estimates for planetary candidates in systems with likely bound nearby stars increase by a factor of 1.54, on average. We find that 35 previously believed rocky planet candidates are likely not rocky due to the presence of nearby stars. From the combined data sets from the complete Robo-AO KOI survey, we find that 14.5±0.5% of planetary candidate hosts have a nearby star with 4″, while 1.2% have two nearby stars, and 0.08% have three. We find that 16% of Earth-sized, 13% of Neptune-sized, 14% of Saturn-sized, and 19% of Jupiter-sized planet candidates have detected nearby stars.

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High-Efficiency Autonomous Laser Adaptive Optics

Cited by 104 publications

References 34 publications

Robo-Ao Kepler Planetary Candidate Survey. Iii. Adaptive Optics Imaging of 1629 Kepler Exoplanet Candidate Host Stars

Robo-Ao Kepler Planetary Candidate Survey. Iii. Adaptive Optics Imaging of 1629 Kepler Exoplanet Candidate Host Stars

Disk Detective: Discovery of New Circumstellar Disk Candidates Through Citizen Science

Robo-AO Kepler Survey. IV. The Effect of Nearby Stars on 3857 Planetary Candidate Systems

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