239 Works

Laboratory tests on HeNOS, the MCAO test bench for NFIRAOS

Matthias Rosensteiner, Paolo Turri, David Andersen, Paolo Spano & Glen Herriot

Optical calibration of the M4 prototype toward the final unit

Runa Briguglio, Giorgio Pariani, Marco Xompero, Armando Riccardi, Mario Adrighettoni, Roberto Biasi, Matteo Tinori & Daniele Gallieni

Anti-aliasing wave-front reconstruction with Shack-Hartmann sensors

Charlotte Bond, Thierry Fusco, Carlos Correia, JeanPierre Veran & Joel Telxeira

Coupling of WFS with a segmented DM “Test of different concepts: SH, Pyramid, Zernike phase sensor”

Nicolas Galland, Kacem El Hadi, Kjetil Dohlen, Jean-Francoiss Sauvage, Thierry Fusco, Franck Marchis & Mamadou N'Diaye

State of the art IR cameras for wavefront sensing using e-APD MCT arrays

Pilippe Feautrier & Jean-Luc Gach

Measuring Segment Piston with a Non-Redundant Pupil Mask on the Giant Magellan Telescope

Marcos Van Dam, Peter Tuthill & Anthony Cheetham

Near-infrared tip-tilt sensing at Keck: System architecture and on-sky performance

Rachel Rampy, Bruno Femenia, Jim Lyke, Peter Wizinowich, Sylvain Cetre, Sam Ragland & Paul Stomski

Observations of the dynamic turbulence above La Palma using Stereo-SCIDAR

James Osborn, Timothy Butterley, Saavidra Perera, Dora Fohring & Richard Wilson

Resolving the low-mass content of Westerlund 1 using MCAO

Morten Andersen, Benoit Neichel & Anais Bernard

Optical design of the Post Focal Relay of MAORY

Matteo Lombini, Emiliano Diolaiti & Adriano De Rosa

Non Boltzmann Modeling of Sodium Guidestar Returns and Implications for Guidestar Linewidth

Shawn Hackett & Robert Johnson

New Cophasing and AO strategies for an extremely large telescope dedicated to extremely high contrast: The Colossus Project

Gilles Moretto, Jeff R. Kuhn, Maud Langlois, Michel Tallon, Eric Thiebaut, Svetlana Berdyugina & David Halliday

Analysis of GeMS tip-tilt on-sky data: LQG implementation for vibration rejections

Lucie Leboulleux, Gaetano Sivo, Rémy Juvenal, Caroline Kulcsár, Vincent Garrel, Jean-Marc Conan, Henri-François Raynaud, Cyril Petit, William Rambold, Eduardo Marin, Vanessa Montes & Chadwick Trujillo

Preliminary performance analysis of a LGS system for GTC

Iciar Montilla, Marcos Reyes Garcia-Talavera & Dolores Bello

Coastal Wetlands and Flood Damage Reduction: Using Risk Industry-based Models to Assess Natural Defenses in the Northeastern USA

S. Narayan, M. W. Beck, P. Wilson, C. Thomas, A. Guerrero, C. Shepard, B. G. Reguero, G. Franco, C. J. Ingram & D. Trespalacios

Financing Natural Infrastructure for Coastal Flood Damage Reduction

D-raising in Chamorro relative clauses and other A′ constructions

Jake Wayne Vincent

Fractional crystallization of a Martian magma ocean and formation of a thermochemical boundary layer at the base of the mantle

Garrett Zeff
BurnMan and pMELTS outputs for simulations of fractionally crystallizing magma oceans on Mars.

Dataset for: A Cross-Laboratory Comparison Study of Titan Haze Analogs: Surface Energy

Xinting Yu & Jialin Li
In Titan's nitrogen-methane atmosphere, photochemistry leads to the production of complex organic particles, forming Titan’s thick haze layers. Laboratory-produced aerosol analogs, or "tholins", are produced in a number of laboratories; however, most previous studies have investigated analogs produced by only one laboratory rather than a systematic, comparative analysis. In this study, we performed a comparative study of an important material property, the surface energy, of seven tholin samples produced in three independent laboratories under a...

Soil chemistry and dry season intensity, Panama Canal Area

Benjamin L. Turner & Richard Condit
Woody plant species were surveyed at 72 locations near the Panama Canal, spanning geological formations and a rainfall gradient. Soil chemistry, and dry season intensity at all the sites. Response of tree species to environmental gradients was estimated. The soil and climate data are provided in a single table here. Tree distributions are published at Condit et al. (2013a), including a data archive in Condit et al. (2013b). Note that the PNAS article incorrectly cites...

Demographic response to light environment of all species in the Barro Colorado plot: recruitment, growth, and mortality

Nadja Rüger, Stephen P. Hubbell & Richard Condit
We measured growth, death, and recruitment of 250,000 individual trees of 300 species in the Barro Colorado 50-ha plot in Panama. To understand how light limits demography, we also carried out a detailed map of the light environment across the 50 hectares, providing an estimate of the light at the top of every tree in the plot (Rüger et al. 2009, 2011ab, 2012, 2018, 2020). These tables combine results from the three main studies on...

Volatility in coral cover erodes niche structure, but not diversity, in reef fish assemblages

Cheng-Han Tsai, Hugh Sweatman, Löic Thibaut & Sean Connolly
Environmental fluctuations are becoming increasingly volatile in many ecosystems, highlighting the need to better understand how stochastic and deterministic processes shape patterns of commonness and rarity, particularly in high-diversity systems like coral reefs. We analyzed reef fish time-series across the Great Barrier Reef to show that approximately 75% of the variance in relative species abundance is attributable to deterministic, intrinsic species differences. Nevertheless, the relative importance of stochastic factors is markedly higher on reefs that...

Cedar Creek Tree Plot, Minnesota: Neighbor influence on growth and survival in a burned oak landscape

Mark A. Davis & Richard Condit
The 16-ha Cedar Creek plot had all trees at least 2 cm dbh measured every 5 years from 1990 to 2015. Additional censuses were carried out every year, but trees were only checked for survival in those intervening censuses. The six growth censuses are thus numbered 1, 6, 11, 16, 21, 26. Data included here were used in Davis and Condit (2022). More details on methods and other uses of the data appear Davis (2021)...

Field courses narrow demographic achievement gaps in ecology and evolutionary biology

Roxanne Beltran, Erin Marnocha, Alexandra Race, Don Croll, Gage Dayton & Erika Zavaleta
Disparities remain in the representation of marginalized students in STEM. Classroom-based experiential learning opportunities can increase student confidence and academic success; however, the effectiveness of extending learning to outdoor settings is unknown. Our objectives were to examine 1) demographic gaps in ecology and evolutionary biology (EEB) major completion, college graduation, and GPAs for students who did and did not enroll in field courses, 2) whether under-represented demographic groups were less likely to enroll in field...

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