Results 21 to 30 of about 261,856 (238)

Astronomiaren arloan Lehen Hezkuntzako graduko ikasleen ezagutzari buruzko ikerketa [PDF]

Ikastorratza.e-Revista de Didáctica, 2017
This study examines the understanding that preservice teachers have on astronomy, a very relevant educational objective at primary levels. To that end, a sample of students in their final educational level of the Bachelor of Primary Education has been ...
Jon Ander Garibi
doaj  

Evolution of Lithium-Beryllium-Boron and Oxygen in the early Galaxy [PDF]

, 2001
Oxygen is a much better evolutionary index than iron to describe the history of Lithium-Beryllium-Boron (LiBeB) since it is the main producer of these light elements at least in the early Galaxy.
Boesgaard, Bykov, Elisabeth Vangioni-Flam, Fields, Israelian, Meneguzzi, Michel Cassé, Ramaty, Vangioni-Flam, Vangioni-Flam, Vangioni-Flam, Vangioni-Flam   +11 more
core   +3 more sources

Digital Data Preservation for Scholarly Publications in Astronomy

International Journal of Digital Curation, 2007
Astronomy is similar to other scientific disciplines in that scholarly publication relies on the presentation and interpretation of data. But although astronomy now has archives for its primary research telescopes and associated surveys, the highly ...
Sayeed Choudhury, Tim DiLauro, Alex Szalay, Ethan Vishniac, Robert Hanisch, Julie Steffen, Robert Milkey, Teresa Ehling, Ray Plante   +8 more
doaj   +1 more source

Radial Velocities as an Exoplanet Discovery Method

, 2017
The precise radial velocity technique is a cornerstone of exoplanetary astronomy. Astronomers measure Doppler shifts in the star's spectral features, which track the line-of/sight gravitational accelerations of a star caused by the planets orbiting it ...
B Campbell, C Chubak, D Queloz, D Queloz, DA Fischer, DW Latham, FA Pepe, GW Marcy, H Kjeldsen, I Boisse, JF Kasting, JL Bean, JT Wright, M Mayor, RP Butler, RP Butler, WJ Borucki, X Dumusque   +17 more
core   +1 more source

Fourier decomposition and frequency analysis of the pulsating stars with P < 1day in the OGLE database. II. Multiperiodic RR Lyrae variables in the Galactic Bulge [PDF]

, 2002
We present the results of a systematic search for multiperiodic pulsators among the Galactic Bulge RR Lyrae stars of the OGLE-1 sample. We identify one "canonical" double-mode variable (RRd star) pulsating in two radial modes.
Alcock, Borkowski, Dziembowski, E. Poretti, Jerzykiewicz, Kovács, Nagy, Nowakowski, Olech, P. Moskalik, Poretti, Smith, Smith, Szeidl, Udalski, Udalski, Udalski, Udalski, Udalski   +18 more
core   +2 more sources

Interactive Games and Plays in Teaching Physics and Astronomy

Education Sciences, 2023
Physics is a difficult subject in which to trigger interest in pupils, particularly in junior high school classes: this reflects in the results of maturity exams.
Zhuldyzay Akimkhanova, Kunduz Turekhanova, Grzegorz P. Karwasz   +2 more
doaj   +1 more source

New ADS Functionality for the Curator

, 2017
In this paper we provide an update concerning the operations of the NASA Astrophysics Data System (ADS), its services and user interface, and the content currently indexed in its database.
Accomazzi, Alberto, Blanco-Cuaresma, Sergi, Chyla, Roman, Grant, Carolyn S., Henneken, Edwin A., Hostetler, Timothy W., Kurtz, Michael J., McDonald, Steven, Shapurian, Golnaz, Shaulis, Taylor J., Templeton, Matthew R., Thompson, Donna M.   +11 more
core   +1 more source

Galactic Winds [PDF]

, 2005
Galactic winds are the primary mechanism by which energy and metals are recycled in galaxies and are deposited into the intergalactic medium. New observations are revealing the ubiquity of this process, particularly at high redshift.
Bland-Hawthorn, J., Cecil, G., Veilleux, S.   +2 more
core   +3 more sources

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Greek Astromythology: intersections between mythology history and modern Astronomy Education

Frontiers in Education
This article provides a comparative assessment of the intersection between Greek Astromythology and Astronomy Education, as an interdisciplinary and intercultural contribution. The research is based on a qualitative assessment of narratives and concepts,
Marcello Ferreira, Marcos Orso da Fonseca, Michel Corci Batista, Olavo Leopoldino da Silva Filho, Alexandre Strapasson, Alexandre Strapasson   +5 more
doaj   +1 more source