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相关论文: Asteroids dimensions and the Truncated Pareto dist…

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We present here multi-band photometry for over 2000 Main-belt asteroids. For each target we report the probabilistic taxonomy using the measured V-R and V-I colors in combination with a machine-learning generated decision surface in…

地球与行星天体物理 · 物理学 2019-06-05 N. Erasmus , A. McNeill , M. Mommert , D. E. Trilling , A. A. Sickafoose , K. Paterson

Most asteroids are somewhat elongated and have non-zero lightcurve amplitudes. Such asteroids can be detected in large-scale sky surveys even if their mean magnitudes are fainter than the stated sensitivity limits. We explore the detection…

地球与行星天体物理 · 物理学 2021-05-21 Samuel Navarro-Meza , Erin Aadland , David Trilling

Quantifying the accuracy with which physical properties of asteroids can be determined from thermal modeling is critical to measuring the impact of infrared data on our understanding of asteroids. Previous work (Mainzer et al. 2011b) has…

地球与行星天体物理 · 物理学 2018-08-08 Joseph R. Masiero , A. K. Mainzer , E. L. Wright

The Gaia Data Release 2 provides precise astrometry for nearly 1.5 billion sources across the entire sky, including several thousand asteroids. In this work, we provide evidence that reasonably large asteroids (diameter $>$ 20 km) have high…

The larger number of models of asteroid shapes and their rotational states derived by the lightcurve inversion give us better insight into both the nature of individual objects and the whole asteroid population. With a larger statistical…

地球与行星天体物理 · 物理学 2013-01-30 J. Hanuš , J. Ďurech , M. Brož , A. Marciniak , B. D. Warner , F. Pilcher , R. Stephens , R. Behrend , B. Carry , D. Čapek , P. Antonini , M. Audejean , K. Augustesen , E. Barbotin , P. Baudouin , A. Bayol , L. Bernasconi , W. Borczyk , J. -G. Bosch , E. Brochard , L. Brunetto , S. Casulli , A. Cazenave , S. Charbonnel , B. Christophe , F. Colas , J. Coloma , M. Conjat , W. Cooney , H. Correira , V. Cotrez , A. Coupier , R. Crippa , M. Cristofanelli , Ch. Dalmas , C. Danavaro , C. Demeautis , T. Droege , R. Durkee , N. Esseiva , M. Esteban , M. Fagas , G. Farroni , M. Fauvaud , S. Fauvaud , F. Del Freo , L. Garcia , S. Geier , C. Godon , K. Grangeon , H. Hamanowa , H. Hamanowa , N. Heck , S. Hellmich , D. Higgins , R. Hirsch , M. Husarik , T. Itkonen , O. Jade , K. Kamiński , P. Kankiewicz , A. Klotz , R. A. Koff , A. Kryszczyńska , T. Kwiatkowski , A. Laffont , A. Leroy , J. Lecacheux , Y. Leonie , C. Leyrat , F. Manzini , A. Martin , G. Masi , D. Matter , J. Michałowski , M. J. Michałowski , T. Michałowski , J. Michelet , R. Michelsen , E. Morelle , S. Mottola , R. Naves , J. Nomen , J. Oey , W. Ogloza , A. Oksanen , D. Oszkiewicz , P. Pääkkönen , M. Paiella , H. Pallares , J. Paulo , M. Pavic , B. Payet , M. Polińska , D. Polishook , R. Poncy , Y. Revaz , C. Rinner , M. Rocca , A. Roche , D. Romeuf , R. Roy , H. Saguin , P. A. Salom , S. Sanchez , G. Santacana , T. Santana-Ros , J. -P. Sareyan , K. Sobkowiak , S. Sposetti , D. Starkey , R. Stoss , J. Strajnic , J. -P. Teng , B. Tregon , A. Vagnozzi , F. P. Velichko , N. Waelchli , K. Wagrez , H. Wücher

In this paper, we define a kernel estimator for the tail index of a Pareto-type distribution under random right-truncation and establish its asymptotic normality. A simulation study shows that, compared to the estimators recently proposed…

统计理论 · 数学 2015-12-02 Souad Benchaira , Djamel Meraghni , Abdelhakim Necir

Given the compositional diversity of asteroids, and their distribution in space, it is impossible to consider returning samples from each one to establish their origin. However, the velocity and molecular composition of primary minerals,…

Knowledge of the interior density distribution of an asteroid can reveal its composition and constrain its evolutionary history. However, most asteroid observational techniques are not sensitive to interior properties. We investigate the…

地球与行星天体物理 · 物理学 2022-10-20 Jack T Dinsmore , Julien de Wit

The Asteroid Belt is characterized by the radial mixing of bodies with different physical properties, a very low mass compared to Minimum Mass Solar Nebula expectations and has an excited orbital distribution. Models of the evolution of the…

地球与行星天体物理 · 物理学 2017-01-12 Rogerio Deienno , Rodney S. Gomes , Kevin J. Walsh , Alessandro Morbidelli , David Nesvorny

Generalized parton distributions describe the distribution of partons in the transverse plane. For transversely polarized quarks and/or nucleons, these impact parameter dependent parton distributions are not axially symmetric. These…

高能物理 - 唯象学 · 物理学 2008-11-26 Matthias Burkardt

Occultations, the covering up of one celestial body by another celestial body, have been used in astronomy for millennia to learn about the sun and moon. Since 2018, VERITAS has implemented a program to detect predicted asteroid…

天体物理仪器与方法 · 物理学 2025-12-15 Joshua Bartkoske , Anne Duerr , Dave Kieda

We report 491 new near-infrared spectroscopic measurements of 420 near-Earth objects (NEOs) collected on the NASA InfraRed Telescope Facility (IRTF) as part of the MIT-Hawaii NEO Spectroscopic Survey (MITHNEOS). These measurements were…

We present revised near-infrared albedo fits of 2835 Main Belt asteroids observed by WISE/NEOWISE over the course of its fully cryogenic survey in 2010. These fits are derived from reflected-light near-infrared images taken simultaneously…

地球与行星天体物理 · 物理学 2015-06-22 Joseph R. Masiero , T. Grav , A. K. Mainzer , C. R. Nugent , J. M. Bauer , R. Stevenson , S. Sonnett

Generalized parton distributions can be used to obtain information about the dependence of parton distributions on the impact parameter. Potential consequences for T-odd single-spin asymmetries are discussed.

高能物理 - 唯象学 · 物理学 2009-11-11 Matthias Burkardt

The statistical parameters of five generalizations of the Lindley distribution, such as the average, variance and moments, are reviewed. A new double truncated Lindley distribution with three parameters is derived. The new distributions are…

统计方法学 · 统计学 2020-03-31 Lorenzo Zaninetti

Recently some papers, such as Aban, Meerschaert and Panorska (2006), Nuyts (2010) and Clark (2013), have drawn attention to possible truncation in Pareto tail modelling. Sometimes natural upper bounds exist that truncate the probability…

统计理论 · 数学 2015-05-21 Jan Beirlant , Isabel Fraga Alves , Ivette Gomes

No less than 15% of large (diameter greater than 140 km) asteroids have satellites. The commonly accepted mechanism for their formation is post-impact reaccumulation. However, the detailed physical and dynamical properties of these systems…

The most popular approach in extreme value statistics is the modelling of threshold exceedances using the asymptotically motivated generalised Pareto distribution. This approach involves the selection of a high threshold above which the…

统计方法学 · 统计学 2014-05-27 Ioannis Papastathopoulos , Jonathan A. Tawn

The new approach of the regular spacing of planetary orbits and planet mass distribution in the Solar system is considered. The relative planetary distances will be represented as the inverse composite probabilities of two discrete…

天体物理学 · 物理学 2007-05-23 V. M. Bakulev

The upper tail of a claim size distribution of a property line of business is frequently modelled by Pareto distribution. However, the upper tail does not need to be Pareto distributed, extraordinary shapes are possible. Here, the…

统计方法学 · 统计学 2020-02-19 Mathias Raschke