Results 41 to 50 of about 431,245 (326)

Optical Polarimetry in Undergraduate Education [PDF]

EPJ Web of Conferences, 2019
Polarimetry plays an important part in observational astronomy, but it is all too often given limited attention in astronomy textbooks. Coupled with a sometimes confusing mathematical introduction, students may feel that polarization is a difficult ...
Topasna Gregory
doaj   +1 more source

The Orion constellation as an installation - An innovative three dimensional teaching and learning environment

, 2012
Visualising the three dimensional distribution of stars within a constellation is highly challenging for both students and educators, but when carried out in an interactive collaborative way it can create an ideal environment to explore common ...
Brako E., Brown D., Daniel Brown, Hernandez U. O.   +3 more
core   +1 more source

Exploring galactic properties with machine learning. Predicting star formation, stellar mass, and metallicity from photometric data [PDF]

Astronomy & Astrophysics
We explore machine learning techniques to forecast the star-formation rate, stellar mass, and metallicity across galaxies with redshifts ranging from 0.01 to 0.3.
F. Z. Zeraatgari, F. Hafezianzadeh, Y.-X. Zhang, A. Mosallanezhad, J.-Y. Zhang   +4 more
semanticscholar   +1 more source

The Cosmic Stellar Birth and Death Rates

, 2006
The cosmic stellar birth rate can be measured by standard astronomical techniques. It can also be probed via the cosmic stellar death rate, though until recently, this was much less precise.
Ahn, Ando, Ando, Beacom, Bionta, Bisnovatyi-Kogan, Clayton, Fukugita, Hirata, Hopkins, John F. Beacom, Krauss, Malek, Milne, Mirizzi, Schiminovich, Strigari, Strigari, Watanabe, Woosley, Yoshida, Zhang, Zhang   +22 more
core   +2 more sources

Galactic Open Clusters [PDF]

, 2005
The study of open clusters has a classic feel to it since the subject predates anyone alive today. Despite the age of this topic, I show via an ADS search that its relevance and importance in astronomy has grown faster in the last few decades than ...
von Hippel, Ted
core   +2 more sources

Efficient Multifunctional Response and Polarization Switching in BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4‐Based Triphasic Composites for Advanced Pulsating Applications

Advanced Engineering Materials, EarlyView.
Triphasic BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4 composites exhibit enhanced ferroelectric and magnetic behavior, achieving 70.76% energy‐storage efficiency and improved polarization switching. The coupling between ferroelectric and magnetic phases enables multifunctional performance, making these composites promising candidates for next‐generation energy ...
Hassan Raza Khan, Muzzamal Hussain, Rabia Baqi, Shahid Ali, Abdulaziz Alhazaa, Muhammad Ali Shar, Ammar Tariq, Shahid Atiq   +7 more
wiley   +1 more source

An Augmented Reality Application for eLearning: Design of Stellar Escape Prototype for Immersive Space Exploration

Sukkur IBA Journal of Emerging Technologies
Education has undergone significant transformation in the digital age, leveraging innovative technologies and online platforms to enhance engagement and accessibility.
Aisha Muzaffar, Aiman Manahil, Amirita Dewani, Memoona Sami, Veena Kumari, Dua Agha   +5 more
doaj   +1 more source

KOI-3158: The oldest known system of terrestrial-size planets

EPJ Web of Conferences, 2015
The first discoveries of exoplanets around Sun-like stars have fueled efforts to find ever smaller worlds evocative of Earth and other terrestrial planets in the Solar System. While gas-giant planets appear to form preferentially around metal-rich stars,
Campante T. L., Barclay T., Swift J. J., Huber D., Adibekyan V. Zh., Cochran W., Burke C. J., Isaacson H., Quintana E. V., Davies G. R., Silva Aguirre V., Ragozzine D., Riddle R., Baranec C., Basu S., Chaplin W. J., Christensen-Dalsgaard J., Metcalfe T. S., Bedding T. R., Handberg R., Stello D., Brewer J. M., Hekker S., Karoff C., Kolbl R., Law N. M., Lundkvist M., Miglio A., Rowe J. F., Santos N. C., Van Laerhoven C., Arentoft T., Elsworth Y. P., Fischer D. A., Kawaler S. D., Kjeldsen H., Lund M. N., Marcy G. W., Sousa S. G., Sozzetti A., White T. R.   +40 more
doaj   +1 more source

Stellar astronomy of the Bronze Age sanctuaries in North Khakassia [PDF]

Archaeoastronomy and Ancient Technologies, 2015
This publication presents the results of two studies of astroarchaeological monuments in North Khakassia confirming the existence of Siberia stellar astronomy in the Bronze age (andronovo culture, Khakassia, mid-II millennium BC).
Larichev, V.E., Gienko, E.G., Parshikov, S.A.   +2 more
doaj   +1 more source

Multiple Stellar Populations in Globular Clusters [PDF]

Annual Review of Astronomy and Astrophysics, 2017
Globular clusters (GCs) exhibit star-to-star variations in specific elements (e.g., He, C, N, O, Na, Al) that bear the hallmark of high-temperature H-burning. These abundance variations can be observed spectroscopically and also photometrically, with the
N. Bastian, C. Lardo
semanticscholar   +1 more source