Results 21 to 30 of about 202,170,919 (180)

Scalable Computation of Topological Abstractions for Scalar Data

Computer Graphics Forum, EarlyView.
Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will, J. Lukasczyk, J. Tierny, A. Gyulassy, G. H. Weber, H. Carr, C. Garth   +6 more
wiley   +1 more source

The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email [PDF]

, 2001
The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide.
Kurtz, Michael J., Eichhorn, Guenther, Grant, Carolyn S., Accomazzi, Alberto, Murray, Stephen S.   +4 more
core   +1 more source

Post‐flight assessment of the OSIRIS‐REx Sample Return Capsule (SRC) for organic and other potential contaminants

Meteoritics &Planetary Science, EarlyView.
Abstract Regolith samples from the carbonaceous asteroid Bennu were stowed and delivered to Earth in the OSIRIS‐REx spacecraft's Sample Return Capsule (SRC). We applied multiple analytical techniques to study the components of the post‐flight SRC, with a focus on assessing the conditions and any contaminants to which the Bennu samples were exposed ...
Scott A. Sandford, Jason P. Dworkin, Kevin Righter, Feargus A. J. Abernethy, Romain Alosius, José C. Aponte, James Ball, Eve L. Berger, Denise K. Buckner, Henner Busemann, Simon J. Clemett, George Cody, Jamie Elsila, Dionysis I. Foustoukos, Ian A. Franchi, Daniel P. Glavin, Monica M. Grady, Heather V. Graham, Philipp R. Heck, Amy E. Hofmann, Yongsong Huang, Bumsoo Kim, Daniela Krietsch, Nicole G. Lunning, Colin Maden, Hannah L. McLain, Angel Mojarro, Michel Nuevo, Philippe Schmitt‐Kopplin, Ewerton Santos, Maria Schönbächler, Christopher J. Snead, Kathie L. Thomas‐Keprta, Alexander B. Verchovsky, Harold C. Connolly Jr., Dante S. Lauretta   +35 more
wiley   +1 more source

Astrophysics in a nutshell [PDF]

, 2007
A concise but thorough introduction to the observational data and theoretical concepts underlying modern astronomy, Astrophysics in a Nutshell is designed for advanced undergraduate science majors taking a one-semester course.
Maoz, Dan
core  

Astrophysics is easy! an introduction for the amateur astronomer

, 2007
With some justification, many amateur astronomers believe astrophysics is a very difficult subject, requiring at least degree-level mathematics to understand it properly. This isn’t necessarily the case.
Inglis, Mike
core   +1 more source

Astronomy & Astrophysics (CAUCASUS)-VOLUME 4

, 2018
The IV volume of Journal “Astronomy & Astrophysics (Caucasus)” was dedicated to the 110th Anniversary of Academician Victor Hambardzumyan. AcademicianVictor Hambardzumyan President of International Union of Astronomy (in 1961 – 1964 and 1966 – 72 ...
(CAUCASUS), Astronomy & Astrophysics
core   +1 more source

Properties of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies (Corrigendum) [PDF]

, 2017
Published VersionThis article is an erratum for: Properties of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies (Astronomy & Astrophysics vol 575, A13, 2015)
P. Rafanelli, Lähteenmäki, A., Tornikoski, M., L. Maraschi, Cracco, V., Caccianiga, A., VERCELLONE, STEFANO, S. Vercellone, ROMANO, Patrizia, M. Tornikoski, B. M. Peterson, S. Mathur, Lisakov, M. M., J. L. Richards, FOSCHINI, LUIGI, M. M. Lisakov, L. Gallo, Tammi, J., L. Foschini, Grupe, D., Ciroi, S., CACCIANIGA, Alessandro, V. Cracco, Lister, M. L., Angelakis, E., Romano, P., S. Kaufmann, M. Berton, Peterson, B. M., Järvelä, E., Sievers, A., Maraschi, L., E. Angelakis, S. Ciroi, Fuhrmann, L., Richards, J. L., G. Tagliaferri, Braito, V., Vercellone, S., V. Braito, Rafanelli, P., Gallo, Luigi C., G. La Mura, Foschini, L., Gallo, L., A. Sievers, Mathur, S., Tagliaferri, G., S. Komossa, Tibolla, O., P. Romano, L. Fuhrmann, A. Lähteenmäki, Berton, M., D. Grupe, E. Järvelä, O. Tibolla, La Mura, G., Kaufmann, S., Komossa, S., M. L. Lister, Kovalev, Y. Y., Y. Y. Kovalev, J. Tammi, A. Caccianiga   +64 more
core   +1 more source

Active Neutron Spectroscopy to Determine the Hydration of Low‐Mass, Sealed Mars Samples

Journal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract Mars samples returned to Earth as part of the NASA Mars Sample Return program (MSR) will be subject to a wide range of scientific analyses, many of which will have important implications for the search for life/habitability and planetary evolution. Critical to both of these is the hydration state of the samples. But to ensure the most accurate
Sean Czarnecki, Patrick Gasda, Katherine E. Mesick, Carey Legett, Craig Hardgrove   +4 more
wiley   +1 more source

Flux Reconstruction With Machine Learning Techniques for the ESA JUICE Mission Radiation Monitor, RADEM

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Solar energetic particles (SEPs) are a significant space weather hazard to spacecraft. For Radiation Hardness Assurance (RHA) in future space missions, it is important to characterize the differential flux spectra of SEP events. In this paper, we present a machine learning model developed for reconstructing the differential flux spectrum from ...
Rafael Parente, Marco Pinto, Inês Ochoa, António Gomes, Patrícia Gonçalves   +4 more
wiley   +1 more source

Energy Spectra of High Energy Helium An Extended and Improved Data Product From SOHO EPHIN

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Context. The Electron Proton Helium INstrument (EPHIN) aboard the SOlar and Heliospheric Observatory (SOHO) is a particle telescope that measures energetic protons and Helium particles with kinetic energies above 4 MeV/nuc and electrons with kinetic energies above 150 KeV. Located at the Lagrangian point L1 of the Earth‐Sun system, it provides
M. Hörlöck, B. Heber, S. Jensen, M. Köberle, P. Kühl, H. Sierks   +5 more
wiley   +1 more source