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Now showing items 195-214 of 761

Evidence for photometric contamination in key observations of Cepheids in the benchmark galaxy IC 1613

Majaess, Daniel J.; Turner, David Gerald, 1945-; Gieren, W.; Ngeow, C. (EDP Sciences, 2014-12)

This study helps increase awareness of the pernicious effects of photometric contamination (crowding/blending), since it can propagate an undesirable systematic offset into the cosmic distance scale. The latest Galactic ...
Evidence for the hierarchical formation of the galactic spheroid

West, Michael J.; Cote, Patrick; Marzke, Ronald O.; Minniti, Dante (American Astronomical Society, 2000-04)

The possibility that the Galactic spheroid was assembled from isolated, chemically distinct proto-Galactic fragments is investigated using a Monte Carlo technique designed to simulate the chemical evolution of the Galaxy ...
Evidence for transverse spread in Leonid meteors

LeBlanc, Andrew Glenn; Murray, I. S.; Hawkes, R. L.; Worden, P.; Campbell, M. D.; Brown, P.; Jenniskens, P.; Correll, R. R.; Montague, T.; Babcock, D. D. (Royal Astronomical SocietyOxford University Press, 2000-03-21)

We report here evidence for significant transverse spread of the light production region in bright Leonid meteors. One Leonid meteor has an apparent spread in the light production region of about 600 m perpendicular to the ...
Evidence of silicate immiscibility within flood basalts from the Central Atlantic Magmatic Province

Shellnutt, J. G.; Dostal, J.; Iizuka, Y. (American Geophysical Union, 2013-11-22)

The role silicate-liquid immiscibility plays in the formation of macro-scale, bimodal volcanic/plutonic igneous complexes, and Fe-Ti oxide deposits is debated as the rock compositions produced by immiscibility are similar ...
Evidence of soft dipole resonance in Li-11 with isoscalar character

Kanungo, Rituparna; Sanetullaev, Alisher; Tanaka, J.; Ishimoto, S.; Hagen, G.; Myo, T.; Suzuki, T.; Andreoiu, C.; Bender, P.; Chen, A. A.; Fortin, J. P.; Purcell, Julia; Randhawa, Jaspreet (American Physical Society, 2015-05-12)

The first conclusive evidence of a dipole resonance in ¹¹Li having isoscalar character observed from inelastic scattering with a novel solid deuteron target is reported. The experiment was performed at the ...
Evidence-based cardiovascular care. Family physicians' views of obstacles and opportunities.

Twohig, Peter; Putnam, W.; Burge, F.I.; Jackson, L.I.; Cox, J.L. (College of Family Physicians of Canada, 2004)
The evolution of very massive stars

Bever, J. Van; Belkus, H.; Vanbeveren, D. (American Astronomical Society, 2007-04)

Core collapse of dense massive star clusters is unavoidable, and this leads to the formation of massive objects, with masses of up to 1000 M[circled dot] and even larger. When these objects become stars, stellar wind mass ...
Evolution, structure, and seismology of intermediate-mass stars

Guenther, David B. (American Astronomical Society, 2002-04)

The interior structure, the evolution, and the p-mode oscillation spectra of stellar models between 2.0 and 5 M[subscript circled dot] are presented. Interior details, including convective core and envelope growth and ...
The Evolutionary Consequences of Habitat Fragmentation: Body Morphology and Coloration Differentiation Among Brook Trout Populations of Varying Size

Zastavniouk, Carol; Weir, Laura K.; Fraser, Dylan J. (Wiley, 2017-05-25)

A reduction in population size due to habitat fragmentation can alter the relative roles of different evolutionary mechanisms in phenotypic trait differentiation. While deterministic (selection) and stochastic (genetic ...
Evolutionary influences on the structure of red-giant acoustic oscillation spectra from 600d of Kepler observations

Guenther, David B.; Gruberbauer, Michael; Kallinger, T.; Hekker, S.; Mosser, B.; De Ridder, J.; Bedding, T. R.; Elsworth, Y. P.; Stello, D.; Basu, S. (EDP Sciences, 2012-05)

Context. It was recently discovered that the period spacings of mixed pressure/gravity dipole modes in red giants permit a distinction between the otherwise unknown evolutionary stage of these stars. The Kepler space mission ...
Evolutionary model and oscillation frequencies for [alpha] Ursae Majoris: a comparison with observations

Guenther, David B.; Demarque, P.; Buzasi, D.; Catanzarite, J.; Laher, R.; Conrow, T.; Kreidl, T. (American Astronomical Society, 2000-02)

Inspired by the observations of low-amplitude oscillations of [alpha] Ursae Majoris A by Buzasi et al. using the WIRE satellite, a grid of stellar evolutionary tracks has been constructed to derive physically consistent ...
Excited states in neutron rich boron isotopes

Kanungo, Rituparna; Elekes, Z.; Baba, H.; Dombradi, Zs.; Fulop, Zs.; Gibelin, J.; Horvath, A.; Ichikawa, Y.; Ideguchi, E.; Iwasa, N. (Elsevier, 2005)

New experimental results on in-beam gamma spectroscopy of neutron rich boron isotopes are presented for [superscript 17]B and its neutron removal fragments [superscript 14,15]B, after scattering with a H[subscript 2] target. ...
Experiment in Fourier analysis

Lonc, William, 1930- (American Association of Physics TeachersAmerican Institute of Physics, 1973-03)

Utilizing only commonly available components and instruments, construction and performance details are given for a system capable of extracting the sinusoidal components of a 10 kHz square wave and a 10 kHz half-wave ...
Experimental study of the gamma function rightwards arrow kappa[superscript0]n-ary summation[superscript+], gamma function rightwards arrow kappa[superscript0]logical, and gamma function rightwards arrow kappa[superscript0] n-ary summation[superscript0] reactions at the Mainz Microtron

Akondi, C.S.; Bantawa, K.; Manley, D.M.; Abt, S.; Achenbach, P.; Afzal, F.; Aguar-Bartolome, P.; Ahmed, Z.; Annand, J.R.M.; Arends, H.J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N.; Braghieri, A.; Briscoe, W.J.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Dieterle, M.; Downie, E.J.; Drexler, P.; Ferretti Bondy, M.I.; Gardner, S.; Glazier, D.I.; Gorodnov, I.; Gradl, W.; Gunther, M.; Gurevich, D.; Kay, S.; Heijkenskjold, L.; Hornidge, D.; Huber, G.M.; Kaser, M.; Kashevarov, V.L.; Korolija, M.; Krusche, B.; Lazarev, A.; Livingston, K.; Lutterer, S.; McGeorge, J.C.; MacGregor, I.J.D.; Martel, P.P.; Middleton, D.G.; Miskimen, R.; Mornacchi, E.; Mushkarenkov, A.; Mullen, C.; Neganov, A.; Neiser, A.; Oberle, M.; Ostrick, M.; Otte, P.B.; Oussena, B.; Paudyal, D.; Pedroni, P.; Powell, A.; Prakhov, S.N.; Ron, G.; Rostomyan, T.; Sarty, Adam James, 1965-; Sfienti, C.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Strakovsky, I.I.; Strub, Th.; Supek, I.; Thiel, A.; Thiel, M.; Thomas, A.; Unverzagt, M.; Usov, Yu.A.; Walford, N.K.; Watts, D.P.; Wagner, S.; Werthmuller, D.; Wettig, J.; Witthauer, L.; Wolfes, M. (Springer, 2019-11-14)

This work measured dσ/dΩ for neutral kaon photoproduction reactions from threshold up to a c.m. energy of 1855MeV, focusing specifically on the γp→K⁰Σ⁺, γn→K< ...
Exploring the anomaly in the interaction cross section and matter radius of [superscript 23]O

Kanungo, Rituparna; Prochazka, A.; Uchida, M.; Horiuchi, W.; Hagen, G.; Papenbrock, T.; Nociforo, C.; Aumann, T.; Boutin, D.; Cortina-Gil, D. (American Physical Society, 2011-12-21)

New measurements of the interaction cross sections of [superscript 22,23]O at 900A MeV performed at the GSI, Darmstadt are reported that address the unsolved puzzle of the large cross section previously observed for ...
Factors driving structure of natural and anthropogenic forest edges from temperate to boreal ecosystems

Esseen, Per-Anders; Hedstrom Ringvall, Anna; Harper, Karen A., 1969-; Christensen, Pernilla; Svensson, Johan (Internation Association of Vegetation ScienceWiley, 2016-05)

Questions: What factors control broad-scale variation in edge length and three dimensional boundary structure for a large region extending across two biomes? What is the difference in structure between natural and anthropogenic ...
The faint-end slope of the redshift 5.7 Ly[alpha] luminosity function

Sawicki, Marcin, 1969-; Henry, Alaina L.; Martin, Crystal L.; Dressler, Alan; McCarthy, Patrick (American Astronomical SocietyIOP Publishing, 2012-01-10)

Using new Keck DEIMOS spectroscopy, we examine the origin of the steep number counts of ultra-faint emission-line galaxies recently reported by Dressler et al. We confirm six Ly[alpha] emitters (LAEs), three of which have ...
The first evidence for multiple pulsation axes: a new rapidly oscillating Ap star in the Kepler field, KIC 10195926

Gruberbauer, Michael; Kurtz, D. W.; Cunha, M. S.; Saio, H.; Bigot, L.; Balona, L. A.; Elkin, V. G.; Shibahashi, H.; Brandao, I. M.; Uytterhoeven, K. (Royal Astronomical Society, 2011-07-01)

We have discovered a new rapidly oscillating Ap (roAp) star among the Kepler mission target stars, KIC 10195926. This star shows two pulsation modes with periods that are amongst the longest known for roAp stars at 17.1 ...
First measurement of target and beam-target asymmetries in the [gamma] p [right arrow] [pi superscript 0][eta] p reaction

Annand, J. R. M.; Arends, H. J.; Beck, R.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cherepnya, S.; Collicott, Cristina; Costanza, S.; Downie, E. J.; Sarty, Adam James, 1965- (American Physical Society, 2015-05-26)

The first data on target and beam-target asymmetries for the [gamma] p [right arrow] [pi superscript 0][eta] p reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using the ...
First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

Dieterle, M.; Witthauer, L.; Cividini, F.; Abt, S.; Achenbach, P.; Adlarson, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N. S.; Braghieri, A.; Briscoe, W. J.; Costanza, S.; Collicott, C.; Denig, A.; Downie, E. J.; Drexler, P.; Ferretti-Bondy, M.I.; Gardner, S.; Garni, S.; Glazier, D. I.; Glowa, D.; Gradl, W.; Günther, M.; Gurevich, G. M.; Hamilton, D.; Sarty, A. (Elsevier, 2017-07-10)

The double-polarization observable E and the helicity-dependent cross sections σ_1/2and σ_3/2have been measured for the first time for single π⁰photoproduction from protons and ...

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