Results 1 to 10 of about 420,801 (268)

HC_nH⁻ Anion Chains with n ≤ 8 Are Nonlinear and Their Permanent Dipole Makes Them Potential Candidates for Astronomical Observation

Molecules, 2022
To be detectable in space via radio astronomy, molecules should have a permanent dipole moment. This is the plausible reason why HCnH chains are underproportionally represented in the interstellar medium in comparison with the isoelectronically ...
Ioan Bâldea
doaj   +1 more source

A Review of Requirements for Gamma Radiation Detection in Space Using CubeSats

Applied Sciences, 2021
Initially intended as student-led projects at universities and research institutions, the CubeSats now represent a unique opportunity to access space quickly and in a cost-effective fashion. CubeSats are standard and miniaturized satellites consisting of
Francesco Arneodo, Adriano Di Giovanni, Prashanth Marpu   +2 more
doaj   +1 more source

Astro-Particle Physics at INFN

Universe, 2021
In Italy, INFN coordinates the research in the field of astro-particle physics. The supported experimental activities include the study of the cosmic radiation, the search of gravitational waves, the study of dark universe, general and quantum physics ...
Oliviero Cremonesi
doaj   +1 more source

A Novel, Low-Cost, Position-Sensitive Neutron Detector to Support Thick-Target Inverse Kinematics Experiments for Nuclear Data Measurements

Universe, 2023
High quality nuclear data lie at the heart of accurately modelling stellar systems and terrestrial nuclear reactors. However, some key reaction cross sections have large uncertainties, which limit such models in predicting isotopic abundances and other ...
R. Smith, J. P. Stowell, D. Barker, L. F. Thompson   +3 more
doaj   +1 more source

Holding the Cosmos in Your Hand: Developing 3D Modeling and Printing Pipelines for Communications and Research

Frontiers in Earth Science, 2020
Three-dimensional (3D) visualization has opened up a Universe of possible scientific data representations. 3D printing has the potential to make seemingly abstract and esoteric data sets accessible, particularly through the lens of translating data into ...
Kimberly K. Arcand, Sara R. Price, Megan Watzke   +2 more
doaj   +1 more source

The Resonant Bremsstrahlung of Ultrarelativistic Electrons on a Nucleus with Radiation of Hard Gamma-Quanta in the Presence of a Pulsed Field of the X-ray Pulsar

Universe, 2020
The investigation scrutinizes the circulation of the large-scaled fluxes of ultrarelativistic electrons near the neutron stars. This work focuses on the effects that occur during the adjustment of the strong electromagnetic field near the X-ray pulsars ...
Alexander Dubov, Victor V. Dubov, Sergei P. Roshchupkin   +2 more
doaj   +1 more source

Domain-Agnostic Outlier Ranking Algorithms—A Configurable Pipeline for Facilitating Outlier Detection in Scientific Datasets

Frontiers in Astronomy and Space Sciences, 2022
Automatic detection of outliers is universally needed when working with scientific datasets, e.g., for cleaning datasets or flagging novel samples to guide instrument acquisition or scientific analysis.
Hannah R. Kerner, Umaa Rebbapragada, Kiri L. Wagstaff, Steven Lu, Bryce Dubayah, Eric Huff, Jake Lee, Vinay Raman, Sakshum Kulshrestha   +8 more
doaj   +1 more source

The Mg/Fe ratio of silicate minerals in the meteoritic materials and in the circumstellar environment: A case study for the chondritic-like composition

Open Astronomy, 2021
Kaba meteorite as a reference material (one of a least metamorphosed and most primitive carbonaceous chondrites fell on Earth) was chosen for this study providing an adequate background for study of the protoplanetary disk or even the crystallization ...
Futó Péter, Vanyó József, Simonia Irakli, Sztakovics János, Nagy Mihály, Gucsik Arnold, Döncző Boglárka, Kertész Zsófia, Novák Richárd, Csámer Árpád   +9 more
doaj   +1 more source

Practical Limits on Nanosatellite Telescope Pointing: The Impact of Disturbances and Photon Noise

Frontiers in Astronomy and Space Sciences, 2021
Accurate and stable spacecraft pointing is a requirement of many astronomical observations. Pointing particularly challenges nanosatellites because of an unfavorable surface area–to-mass ratio and a proportionally large volume required for even the ...
Ewan S. Douglas, Kevin Tracy, Zachary Manchester   +2 more
doaj   +1 more source

Visible Shapes of Black Holes M87* and SgrA*

Universe, 2020
We review the physical origins for possible visible images of the supermassive black hole M87* in the galaxy M87 and SgrA* in the Milky Way Galaxy. The classical dark black hole shadow of the maximal size is visible in the case of luminous background ...
Vyacheslav I. Dokuchaev, Natalia O. Nazarova   +1 more
doaj   +1 more source