Results 51 to 60 of about 15,938 (229)

Evaluating the African arid corridor hypothesis: A meta‐analysis including the phylogenetic and biogeographical history of Sesamothamnus

American Journal of Botany, EarlyView.
Abstract Premise We examined the African arid corridor (AAC) disjunction pattern of vascular plants between northeastern and southwestern Africa in the context of geological and climatic events since the late Miocene. We developed a phylogenetic and biogeographical framework for the arid‐adapted genus Sesamothamnus (Pedaliaceae), a classic example of ...
John G. Zaborsky, Jeffrey P. Rose, Ricardo Kriebel, Bryan T. Drew, Emily Moriarty Lemmon, Alan R. Lemmon, Kenneth J. Sytsma   +6 more
wiley   +1 more source

Asteroid lightcurve phase shift from rough‐surface shadowing [PDF]

Meteoritics & Planetary Science, 2013
AbstractWe have simulated asteroid lightcurves for simple shape models using a realistic surface scattering law. The scattering law includes a shadowing function computed with numerical ray‐tracing. We computed lightcurves in a variety of illumination geometries for both the traditional Lommel–Seeliger law and our seminumerical law.
Muinonen Karri, Wilkman Olli
openaire   +1 more source

The Mineralogical Connection between M- and K-type Asteroids as Indicated by Polarimetry

The Planetary Science Journal
Polarimetry has the capacity to provide a unique probe of the surface properties of asteroids. Trends in polarization behavior as a function of wavelength trace asteroid regolith mineral properties that are difficult to probe without measurements in situ
Joseph R. Masiero, Yuna G. Kwon, Elena Selmi, Manaswi Kondapally   +3 more
doaj   +1 more source

Observing the variation of asteroid thermal inertia with heliocentric distance [PDF]

, 2018
Thermal inertia is a useful property to characterise a planetary surface since it can be used as a qualitative measure of the regolith grain size. It is expected to vary with heliocentric distance because of its dependence on temperature.
Alí-Lagoa, B Rozitis, Balridge, Bowell, Bus, Busch, Chesley, Cruikshank, Davidsson, Debye, Decin, Delbo, Delbo, Delbo, E MacLennan, Emery, Fowler, Gueymard, Gundlach, Gundlach, Hahn, Hanus, Hanus, Harris, Harris, Harris, Holsapple, Houck, Housen, Hughes, Hörz, J P Emery, Jarrett, Kaasalainen, Keihm, Keihm, Kieffer, Lauretta, Lebofsky, Lebouteiller, Lellouch, Lim, Lowry, Macke, Magri, Mainzer, Marsset, Mitchell, Murdoch, Müller, Müller, Nugent, Nugent, Nugent, Okada, Opeil, Petit, Pettengill, Rivkin, Robie, Rozitis, Rozitis, Rozitis, Rozitis, Rozitis, Rozitis, Rozitis, S F Green, Scheeres, Scheeres, Shepard, Snyder, Tedesco, Tedesco, Tedesco, Usui, Vasavada, Veeder, Vokrouhlický, Wan, Werner, Werner, Williams, Wolters, Wolters, Wright   +85 more
core   +1 more source

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

The Secular Dynamical Evolution of Binary Asteroid System (65803) Didymos Post-DART

The Planetary Science Journal
The successful impact of NASA’s DART mission with Dimorphos, the secondary body of binary asteroid system (65803) Didymos, altered the attitude, shape, and orbit of Dimorphos.
Rachel H. Cueva, Jay W. McMahon, Alex J. Meyer, Daniel J. Scheeres, Masatoshi Hirabayashi, Sabina D. Raducan, Seth A. Jacobson, Colby C. Merrill   +7 more
doaj   +1 more source

Taxonomic Classification of Asteroids Using the KMTNet Multiband Photometry Data Set

The Planetary Science Journal, 2023
We report the multiband photometry of asteroids observed over 14 nights from 2015 December to 2017 December using the Korea Microlensing Telescope Network telescopes with the taxonomic classification of those objects. The data set contains the photometry
Sangho Choi, Hong-Kyu Moon, Dong-Goo Roh, Min-Su Shin, Myung-Jin Kim, Young-Jong Sohn   +5 more
doaj   +1 more source

Rotationally Resolved Spectroscopy of Asteroid Pairs: No Spectral Variation Suggests Fission is followed by Settling of Dust

, 2014
We examine the spectral properties of asteroid pairs that were disrupted in the last 2 Myrs to examine whether the site of the fission can be revealed.
Binzel, Richard P., DeMeo, Francesca, Moskovitz, Nicholas, Polishook, David   +3 more
core   +1 more source

High atmospheric pressure rescues plant growth under humidity stress: A model for climate‐resilient deep underground agriculture

Deep Underground Science and Engineering, EarlyView.
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He, Linglu Xu, Xiao Tan, Wenhua Zhuang, Naiwen Li, Chao Liu, Bo Tan   +6 more
wiley   +1 more source

OBSERVED ASTEROID SURFACE AREA IN THE THERMAL INFRARED [PDF]

The Astronomical Journal, 2017
ABSTRACT The rapid accumulation of thermal infrared observations and shape models of asteroids has led to increased interest in thermophysical modeling. Most of these infrared observations are unresolved. We consider what fraction of an asteroid’s surface area contributes the bulk of the emitted thermal flux for two model asteroids of ...
C. R. Nugent, A. Mainzer, J. Masiero, E. L. Wright, J. Bauer, T. Grav, E. Kramer, S. Sonnett   +7 more
openaire   +3 more sources