Results 101 to 110 of about 2,005,952 (304)

Review of topo-astronomical methods for the precise orientation in archaeological sites

, 2009
Cosmology across cultures; workshop held at Parque de las Ciencias, Granada, Spain, 8-12 September 2008.A review of the methods and instrumentation used in the determination of topo-astronomical alignments is presented in this paper, with a detailed ...
Folgueira López, Marta, Pascual, Esther, Mejuto, Javier, Rodríguez Caderot, Gracia   +3 more
core   +1 more source

Converged Simulations of the Nozzle Shock in Tidal Disruption Events

The Astrophysical Journal Letters
A star experiences a tidal disruption event (TDE) after passing too close to a massive black hole. When the debris returns to pericenter on the second passage, it is compressed, leading to the formation of nozzle shocks (in the orbital plane) and pancake
Fangyi (Fitz) Hu, Ilya Mandel, Rebecca Nealon, Daniel J. Price   +3 more
doaj   +1 more source

Wafer‐Scale Atomically‐Thin Gold: Transferable Platform for Flexible Optoelectronics, Thermal Management and Bio‐Interfaces

Advanced Science, EarlyView.
Combining template stripping with a graphene‐inspired transfer yields continuous, transferable gold films at 6‐inch wafer scale with thicknesses approaching the atomic limit. The atomically smooth, near‐bulk‐quality films offer above 86% transmittance and sub‐20 Ω/square sheet resistance, serving as a universal platform for flexible optoelectronics ...
Dmitry Yakubovsky, Mikhail Mironov, Georgy Ermolaev, Aleksandr Khrebtov, Aleksandr Slavich, Prashant Narute, Pritom Chowdhury, Roman Kirtaev, Igor Khramtsov, Anton Minnekhanov, Gleb Tselikov, Dmitriy Grudinin, Maria Sidorova, Nikolay Pak, Pavel Maslov, Andrey Vyshnevyy, Hongkai Zhou, Vasyl G. Kravets, Alexander N. Grigorenko, Ivan Kruglov, Nikita Orekhov, Dmitry Kireev, Aleksey Arsenin, Kostya S. Novoselov, Valentyn Volkov   +24 more
wiley   +1 more source

Correcting For Telluric Absorption: Methods, Case Studies, And Release Of The TelFit Code [PDF]

, 2014
Ground-based astronomical spectra are contaminated by the Earth's atmosphere to varying degrees in all spectral regions. We present a Python code that can accurately fit a model to the telluric absorption spectrum present in astronomical data, with ...
Gullikson, Kevin, Dodson-Robinson, Sarah, Kraus, Adam   +2 more
core   +1 more source

Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2

Advanced Science, EarlyView.
Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding, Daehyeon An, Jiwon Choi, Dongmin Moon, Youngsu Choi, Sivasakthi Kuppusamy, Sritharan Krishnamoorthi, Raman Sankar, Myung Joon Han, Se Kwon Kim, Kwang‐Yong Choi   +10 more
wiley   +1 more source

Prospects for Identifying Pulsar Candidates in Radio Surveys Using Scintillation

The Astrophysical Journal
In our previous paper, we developed a technique for identifying pulsar candidates in interferometric radio images using their distinctive scintillation signatures.
Jitendra Salal, Shriharsh P. Tendulkar, Visweshwar Ram Marthi   +2 more
doaj   +1 more source

End-to-end simulation framework for astronomical spectrographs: SOXS, CUBES, and ANDES

Modeling, Systems Engineering, and Project Management for Astronomy XI
We present our numerical simulation approach for the End-to-End (E2E) model applied to various astronomical spectrographs, such as SOXS (ESO-NTT), CUBES (ESO-VLT), and ANDES (ESO-ELT), covering multiple wavelength regions. The E2E model aim at simulating the expected astronomical observations starting from the radiation of the scientific sources (or ...
Scaudo, A., Genoni, M., Causi, G. Li, Cabona, L., Landoni, M., Campana, S., Schipani, P., Claudi, R., Aliverti, M., Baruffolo, A., Ben-Ami, S., Biondi, F., Capasso, G., Cosentino, R., D'Alessio, F., D'Avanzo, P., Hershko, O., Kuncarayakti, H., Munari, M., Santhakumari, K. Radhakrishnan, Pignata, G., Rubin, A., Scuderi, S., Vitali, F., Young, D., Achrén, J., Araiza-Duran, J. A., Arcavi, I., Battaini, F., Brucalassi, A., Bruch, R., Cappellaro, E., Colapietro, M., Della Valle, M., De Pascale, M., Di Benedetto, R., D'Orsi, S., Gal-Yam, A., Hernandez, M., Kotilainen, J., Marty, L., Mattila, S., Rappaport, M., Ricci, D., Riva, M., Salasnich, B., Smartt, S., Sanchez, R. Zanmar, Stritzinger, M., Ventura, H., Cupani, G., Porru, M., Franchini, M., Cirami, R., Calderone, G., Covino, S., Smiljanic, R., Monteiro, M., Balestra, A., Sordo, R., Mason, E., Rousseu, S., Leão, I. de Castro, Zanutta, A., Martins, A. de Meideros, Sosnowska, D., Marquart, T., Boisse, I., Sousa, S., Hernandez, J., Piskunov, N., Puschnig, J., Senna, N., Martins, B., Di Marcantonio, P., Marconi, A.   +75 more
openaire   +2 more sources

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

Hybrid Simulations of Supersonic Shear Flows. II. Cosmic-Ray Viscosity

The Astrophysical Journal
In this second paper in a series dedicated to characterizing shear layers via 2D hybrid (kinetic ions–fluid electrons) simulations, we study the dynamical role of nonthermal particles (cosmic rays, CRs), either spontaneously generated or preexisting.
Naixin Liang, Damiano Caprioli
doaj   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source