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Browsing Articles by Title
Now showing items 629-648 of 761
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(Springer Nature, 2017-11--2)The metal abundance of the hot plasma that permeates galaxy clusters represents the accumulation of heavy elements produced by billions of supernovae1. Therefore, X-ray spectroscopy of the intracluster medium ...
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(American Association of Physics TeachersAmerican Institute of Physics, 1986-09)An experiment is described using readily available satellite television receiving equipment to obtain an approximate value for the solar (quiet Sun) temperature at a frequency of 4 GHz (7.5 cm), using a comparison method. ...
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(American Astronomical SocietyIOP Publishing, 2011-04-20)We compare the simultaneous 2007 space-based MOST photometry and ground-based radial velocity (RV) observations of the F5 star Procyon. We identify slow variations in the MOST data that are similar to those reported in the ...
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(American Astronomical Society, 2010-04-20)We have measured solar-like oscillations in red giants using time-series photometry from the first 34 days of science operations of the Kepler Mission. The light curves, obtained with 30 minute sampling, reveal clear ...
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(IOP Publishing Limited, 2012-06-01)Asteroseismology of F-type stars has been hindered by an ambiguity in identification of their oscillation modes. The regular mode pattern that makes this task trivial in cooler stars is masked by increased line widths. The ...
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(American Astronomical Society, 2011-03-01)We present initial results on some of the properties of open clusters NGC 6791 and NGC 6819 derived from asteroseismic data obtained by NASA’s Kepler mission. In addition to estimating the mass, radius, and log g of stars ...
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(American Astronomical SocietyIOP PUblishing, 2006-01-10)The space telescope MOST is now providing us with extremely accurate low-frequency p-mode oscillation data for the star [eta] Boo.We demonstrate in this paper that these data, when combined with ground-based measurements ...
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(Springer, 2019-06-18)Invasive grasses are an important threat in tropical savannas and grasslands and may be affected by natural and anthropogenic features of the environment. They may affect native species at a variety of scales, but a ...
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(Elsevier, 2022-11)Vegetation structural diversity, also called structural complexity, has great effects on biodiversity and ecological processes, with higher biodiversity often observed in areas with higher structural diversity. As for other ...
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(Canadian Science Publishing, 2021-02-02)Forested wetlands are an integral but understudied part of heterogeneous landscapes in Atlantic Canada, although they are known to provide habitat for species at risk. Our objectives were to explore patterns of forest ...
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(Borderlands, 2010)This essay examines the process of foundation through which Samuel de Champlain's public image as the founder of Québec has been instituted both historically and during Québec City’s 400th anniversary commemorations in ...
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(EDP Sciences, 2011-06)A series of 353 red electronic spectra (from three observatories, mostly from 6300 to 6700 A) obtained between 1994 and 2010, and of 171 UBV photometric observations (from two observatories) of the 2010 eclipse, were ...
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(Elsevier, 2008)The ground state structure of [superscript 9]Li has been investigated through the d([superscript 9]Li, t)[superscript 8]Li one-neutron transfer reaction at E/A = 1.68 MeV. The [superscript 8]Li sub-system in [superscript ...
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(Royal Astronomical SocietyOxford University Press, 2011-06)We present measurements of the specific star formation rate (SSFR)–stellar mass relation for star-forming galaxies. Our deep spectroscopic samples are based on the Redshift One LDSS3 Emission line Survey (ROLES) and European ...
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(American Physical Society, 2015-03-04)Background: In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei provides information on the details of the effective hyperon-nucleon interaction. Purpose: To ...
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Spectroscopy, MOST photometry, and interferometry of MWC 314: is it an LBV or an interacting binary? (Oxford University Press, 2016)MWC 314 is a bright candidate luminous blue variable (LBV) that resides in a fairly close binary system, with an orbital period of 60.753 [plus or minus] 0.003 d. We observed MWC 314 with a combination of optical spectroscopy, ...
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Stable and unstable accretion in the classical T Tauri stars IM Lup and RU Lup as observed by MOST (Oxford University Press, 2016-03-11)Results of the time variability monitoring of the two classical T Tauri stars, RU Lup and IM Lup, are presented. Three photometric data sets were utilized: (1) simultaneous (same field) MOST satellite observations over ...
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(Oxford University Press, 2014-10-11)We present an analysis of the 2011 photometric observations of TW Hya by the MOST satellite; this is the fourth continuous series of this type. The large-scale light variations are dominated by a strong, quasi-periodic ...
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(American Astronomical Society, 2013-12)A group of suspected protostars in a dark cloud northwest of the young (∼2 Myr) cluster Berkeley 59 and two sources in a pillar south of the cluster have been studied in order to determine their evolutionary stages and ...
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(American Astronomical Society, 1997-09)The central region of the Monoceros R2 molecular cloud has been studied using molecular line maps, maps in continuum emission, and an M-band (4.7 [micrometres]) absorption spectrum toward Mon R2 IRS 3. Maps were made in ...
Now showing items 629-648 of 761