Canada
5 Papers
1 Citations
Canada is an academic researcher. The author has contributed to research in topics: Orbital period & Radial velocity. The author has an hindex of 1, co-authored 1 publications.
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Papers
Statistical methods for
William J. Reed,Canada +1 more
- 01 Jan 2004
Abstract: We are interested here in the estimation of the lifetime distribution by using the right censored observations taking into account the probability p that a censored item might contract the interest event after the right censoring. This type of censorship is known in the literature as long-term survival item. We assume that the lifetime follows a log-normal distribution with parameters µ and σ 2 . An EM-algorithm is developed so as to estimate the parameters µ, σ and p. Simulations indicate good accurate and robustness results. The EM-algorithm is then applied to the Cameroonian custom services data set in order to estimate the distribution of the return delays of the Global Position System (GPS). The EM-algorithm leads to accurate results of the parameters involved with smaller mean squared error
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Detailed stellar activity analysis and modelling of GJ 832. Reassessment of the putative habitable zone planet GJ 832c
P. Gorrini,Nicola Astudillo-Defru,Stefan Dreizler,Mario Damasso,R. D'iaz,Xavier Bonfils,S. V. Jeffers,J. Barnes,Fabio Del Sordo,J. M. Almenara,Étienne Artigau,François Bouchy,David Charbonneau,Xavier Delfosse,René Doyon,Pedro Figueira,T. Forveille,Carole A. Haswell,M. J. L'opez-Gonz'alez,C. Melo,Ronald E. Mennickent,G. Gaisn'e,N. Morales,Felipe Murgas,Francesco Pepe,E. Rodr'iguez,Nuno C. Santos,Lev Tal-Or,Yiannis Tsapras,S. U. U. D. Concepci'on,D. D. Astronom'ia,Chile,I. F. Astrophysik,Georg-August-Universitat,German,Departamento de Matem'atica y F'isica Aplicadas,U. Concepci'on,I. Torino,Italy.,International School for Advanced Studies,Icifi,Argentina,U. G. Alpes,France.,M. F. M. Research,S. O. Sciences,T. O. University,UK.,Institute for Space Sciences,Spain.,Inaf - Catania,Institut de Recherche sur les Exoplanetes,U. D. Montr'eal,Canada,Observatoire du Mont-M'egantic,Observatoire de Geneve,U. Geneve,Switzerland,C. F. A. HarvardSmithsonian,Usa,E. Observatory,I. D. A. E. C. D. Espacco,U. Porto,Portugal,Inst. de Astrof'isica de Andaluc'ia,Portuguese Space Agency,Instituto de Astrof'isica de Canarias,D. D. Astrof'isica,U. L. Laguna,D. Astronomia,Faculdade de Ciências,D. Physics,A. University,Israel,Astrophysics Geophysics,Space Science Data Center,Zentrum fur Astronomie der Universitat Heidelberg +76 more
TL;DR: In this paper , the radial velocity time series of Gliese-832 (GJ 832) was modelled with Keplerians and Gaussian process (GP) regressions alongside activity indicators to subsequently compare them within a Bayesian framework.
Updated modelling and refined absolute parameters of the oscillating eclipsing binary AS Eri
Patricia Lampens,David Mkrtichian,Holger Lehmann,K. Gunsriwiwat,L. Vermeylen,J. M. Matthews,R. K. K. S. V. Belgie,Brussels,Belgium,National Astronomical Research Institute of Thailand,T. Donkaew,A. Maerim,Chi-Hsien Mai,Thailand,Thüringer Landessternwarte,Tautenburg,German,D. Physics,M. Science,Faculty of Computer Science,Chiang Mai University,Muang,Astronomy,U British Columbia,Vancouver,Bc,Canada,I. Physics,Karl-Franzens-University Graz,Nawi Graz,Universitatsplatz 5II,Graz,Austria +32 more
TL;DR: In this article , the authors presented a new study of the Algol-type eclipsing binary system AS Eri based on the combination of the MOST and TESS light curves and a collection of very precise radial velocities obtained with the spectrographs HERMES operating at theMercator telescope, La Palma, and TCES Operating at the Alfred Jensch telescope, Tautenburg.
2
Recommendations for extending the GFF3 specification for improved interoperability of genomic data
Surya Saha,Scott Cain,Ethalinda K. S. Cannon,Nathan Dunn,Andrew Farmer,Zhi-Liang Hu,Gareth Maslen,Sierra A. T. Moxon,Christopher J. Mungall,Rex T. Nelson,Monica F. Poelchau Boyce Thompson Institute,Ithaca,Ny,Ontario Institute for Cancer Research,Toronto,Canada,Usda,Agricultural Research Service,Corn.,Insects,Crop Genetics Research Unit,Truveta,Seattle,Wa,National Center for Genome Resources,I. S. University,Ames,Ia,European Molecular Biology Laboratory,European Bioinformatics Institute,Wellcome Genome Campus,Hinxton,UK.,Lawrence Berkeley National Lab.,Berkeley,California,Usa,National Agricultural Library +37 more
- 15 Feb 2022
TL;DR: The GFF3 format is a common, flexible tab-delimited format representing the structure and function of genes or other mapped features as mentioned in this paper , however, with increasing re-use of annotation data, this flexibility has become an obstacle for standardized downstream processing.
Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves. II. Period–Fourier–Metallicity Relations for First Overtone RR Lyrae
J. P. Mullen,Massimo Marengo,C. E. Mart'inez-V'azquez,Giuseppe Bono,Vittorio F. Braga,Brian Chaboyer,Juliana Crestani,Massimo Dall'Ora,M. Fabrizio,Giuliana Fiorentino,Matteo Monelli,Jillian R. Neeley,Peter B. Stetson,F. L. D. O. Physics,Astronomy,I. S. University,Ames,Ia,Usa,G. Observatory,NSF's National Optical-Infrared Astronomy Research Laboratory,Hilo,Hi,Cerro Tololo Inter-American Observatory,Luca Serena,Chile,Dipartimento Fisica,Universita' di Roma Tor Vergata,Roma,Italy.,I. Roma,Monteporzio Catone,Space Science Data Center,D. Physics,Dartmouth College,Hanover,Nh,D. D. Astronomia,Universidade Federal do Rio Grande do Sul,Porto Alegre,Brazil,I. A. D. Capodimonte,Napoli,Instituto de Astrof'isica de Canarias,La Laguna,Tenerife,Spain.,Departmento de Astrof'isica,U. L. Laguna,Florida Atlantic University,Boca Raton,Fl,H. Astronomy,Astrophysics,National Research Council,Victoria,Bc,Canada,Universit'e de Nice Sophia-antipolis,Cnrs,Observatoire de la Côte d'Azur,Laboratoire Lagrange,Nice,France. +63 more
TL;DR: In this paper , the authors presented period-ϕ 31]-Fe/H relations for first-overtone RRL stars (RRc), calibrated over a broad range of metallicities (−2.5 −0.5 ) using the largest currently available set of Galactic halo field RRL with homogeneous spectroscopic metallicities.