Výsledky vyhledávání

Surveying Geology Concepts In Education Standards For A Rapidly Changing Global Context

Autor: Timothy F. Slater, Sharon P. Schleigh, Stephanie J. Slater, Inge Heyer, Sarah K. Guffey

Publikováno v: Contemporary Issues in Education Research (CIER). 9:167-188

Internationally much attention is being paid to which of a seemingly endless list of scientific concepts should be taught to schoolchildren to enable them to best participate in the global economy of the 21st Century. In regards to science education,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de30e1a1a76da8c20250de1cc6d3244a
https://doi.org/10.19030/cier.v9i4.9788

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iSTAR First Light: Characterizing Astronomy Education Research Dissertations In The iSTAR Database

Autor: Timothy F. Slater, Sharon P. Schleigh, Inge Heyer, Paulo Sergio Bretones, Coty B. Tatge, David H. McKinnon, Stephanie J. Slater

Publikováno v: Journal of Astronomy & Earth Sciences Education (JAESE). 3:125

There is widespread interest among discipline-based science education researchers to situate their research in the existing scholarly literature base. Unfortunately, traditional approaches to conducting a thorough literature review are unduly hindere

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48d79cdddef00241243da8ae1fed464a
https://doi.org/10.19030/jaese.v3i2.9845

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Charge‐Transfer Efficiency of WFPC2

Autor: Stefano Casertano, Inge Heyer, Bradley C. Whitmore

Publikováno v: Publications of the Astronomical Society of the Pacific. 111:1559-1576

Observations of ω Centauri have been used to characterize the charge‐transfer efficiency (CTE) of the Wide Field and Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope. A set of formulae has been developed to correct aperture photometr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2562074619abe38267c6f70e9c4861d4
https://doi.org/10.1086/316475

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Four-colour photometry of eclipsing binaries

Autor: Johannes Andersen, J. V. Clausen, Inge Heyer, L. P.R. Vaz, B. W. Casey, Robert D. Mathieu

Publikováno v: Astronomy and Astrophysics Supplement Series. 130:245-250

Complete uvby light curves of the detached Herbig Be eclipsing binary TY Coronae Australis are presented. A total of 1789 photometric measurements in each of the four colours were obtained in 1989 and in 1992-1994. A detailed analysis of the y light

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b1660f476fb0e4fc792ada0ca7f83b9
https://doi.org/10.1051/aas:1998224

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Bar evolution over the last 8 billion years: A constant fraction of strong bars in the gems survey

Publikováno v: ASTROPHYSICAL JOURNAL. 615(2)

One-third of present-day spirals host optically visible strong bars that drive their dynamical evolution. However, the fundamental question of how bars evolve over cosmological times has yet to be resolved, and even the frequency of bars at intermedi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39f90ad3f6f890a0335fd8090880e0a5
http://ora.ox.ac.uk/objects/uuid:12ada899-7784-4572-8704-0420c68f1257

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Evolution and Impact of Bars over the Last Nine Gyr: Early Results from GEMS

Publikováno v: Astrophysics and Space Science Library ISBN: 9789401570855

Bars drive the dynamical evolution of disk galaxies by redistributing mass and angular momentum, and they are ubiquitous in present-day spirals. Early studies of the Hubble Deep Field reported a dramatic decline in the rest-frame optical bar fraction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75e95f32cca67900a18c3af7cded4671
https://doi.org/10.1007/978-1-4020-2862-5_26

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The Hubble Deep Field South Flanking Fields

As part of the Hubble Deep Field South program, a set of shorter 2-orbit observations were obtained of the area adjacent to the deep fields. The WFPC2 flanking fields cover a contiguous solid angle of 48 square arcminutes. Parallel observations with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::060bda131f440d1398ebe5b6d595720d
http://arxiv.org/abs/astro-ph/0212416

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WFPC2 Observations of the Hubble Deep Field-South

Autor: Massimo Stiavelli, Robert Williams, Inge Heyer, Rosa A. Gonzalez-Lopezlira, Henry C. Ferguson, Andrew S. Fruchter, R. Hook, Stefano Casertano, Zolt Levay, T. Ed Smith, Duilia F. de Mello, Michael S. Wiggs, Russell B. Makidon, Jennifer Mack, Max Mutchler, Mark Dickinson, Ray A. Lucas

The Hubble Deep Field-South observations targeted a high-galactic-latitude field near QSO J2233-606. We present WFPC2 observations of the field in four wide bandpasses centered at roughly 300, 450, 606, and 814 nm. Observations, data reduction proced

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2421823d5a9db91c39610cb8188a7ac8

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WFPC2 Observations of NGC 454: an Interacting Pair of Galaxies

Autor: Inge Heyer, S. Gonzaga, Nino Panagia, Massimo Stiavelli, C. Marcella Carollo, M. Romaniello

We present WFPC2 images in the F450W, F606W and F814W filters of the interacting pair of galaxies NGC 454. Our data indicate that the system is in the early stages of interaction. A population of young star-clusters has formed around the late compone

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea95a7d2b580b8803770f0e452324a9d
http://arxiv.org/abs/astro-ph/9711058

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