Results 61 to 70 of about 2,467 (183)

Frequency Standard Contributions to Limitations on the Signal‐to‐Noise Ratio in Very Long Baseline Interferometric Observations

Radio Science, Volume 61, Issue 6, June 2026.
Abstract Since its observation in 2019, the first image of a super‐massive black hole using Very Long Baseline Interferometry (VLBI) with an Earth‐scale baseline has generated much scientific and public interest. Work is now underway to extend the baseline into space to obtain higher image resolution.
E. A. Burt, T. A. Ely, G. C. Bower, T. J. W. Lazio, M. Anderson, S. Hernandez   +5 more
wiley   +1 more source

What Observations Would an Energetic Neutral Atom Imager Have Made During the Voyager 2 Flyby of Uranus?

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We present large‐scale simulations of energetic neutral atom (ENA) emissions at Uranus from a spacecraft viewpoint. Models of magnetic field, extended hydrogen exosphere, moon‐sourced neutral tori, and proton radiation belt are implemented into a simulator to evaluate the production of ENAs for L $L$ = 1–15.
D. Santos‐Costa, N. André
wiley   +1 more source

Intermittent jet activity in the radio galaxy 4C 29.30? [PDF]

Monthly Notices of the Royal Astronomical Society, 2007
14 pages, 11 figures, accepted for publication in ...
Jamrozy, M., Konar, C., Saikia, D. J., Stawarz, L., Mack, K.H., Siemiginowska, A.   +5 more
openaire   +4 more sources

Martian Proton Albedo as Signature of Near‐Surface Water

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Understanding the Martian soil water budget is crucial not only for in situ resource utilization in future human missions to Mars, but also for reconstructing the geological and climatic history of the planet, as well as to assess the potential of ancient or even present microbial life.
Jan Leo Löwe, Robert F. Wimmer‐Schweingruber, Salman Khaksari, Sven Löffler, Sergey Nikiforov, Maya Djachkova, Jingnan Guo, Gabin Charpentier, Bent Ehresmann, Donald M. Hassler, Daniel Matthiä, Thomas Berger, Günther Reitz, Cary Zeitlin   +13 more
wiley   +1 more source

Solar Energetic Particle Prediction in the Inner Heliosphere Using Deep Learning and PSP/IS⊙IS Data

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Solar events, such as coronal mass ejections and solar flares, accelerate large numbers of energetic charged particles, producing solar energetic particle (SEP) events that can harm astronauts, damage satellites, and potentially damage infrastructure on Earth.
Tate Hutchins, Spiridon Kasapis, Hameedullah Farooki, Manuel E. Cuesta, Lengying Khoo, Sungmin Pak, Robert Czarnota, Jamie Rankin, Jamey Szalay, Zigong Xu, Georgios Livadiotis, Nikolaos Sarlis, David McComas   +12 more
wiley   +1 more source

On the Role of Electron Precipitation in Excess Radiation Doses Measured at Aviation Altitudes

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Radiation from space in the form of galactic cosmic rays (GCRs) generates a persistent background of ionizing radiation in Earth's atmosphere. The dose rate of ionizing radiation due to GCRs increases from sea level to aviation altitudes.
Julia Luna Claxton, Robert Marshall
wiley   +1 more source

Computers in Our Cosmos: Intersections in Geographies of Care, Abolition Geographies and Worker Movements

Transactions of the Institute of British Geographers, Volume 51, Issue 2, June 2026.
ABSTRACT AI assistants on spacecrafts. Netflix streamed through inter‐planetary communication networks. Colonies on Mars by 2050. While the glamorous public–private ventures into outer space curate discussions on the technical specificities of these proposed projects, this paper reorients discussions on such developments through critical frameworks of ...
Yung Au
wiley   +1 more source

Numerical Simulations of Blazar Jets and their Non-thermal Radiation [PDF]

, 2004
In the past years relativistic (magneto)hydrodynamic simulations have been used extensively to study the time-dependent hydrodynamic properties of extra galactic jets.
Mimica, Petar, Mimica, P.
core  

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, Volume 13, Issue 28, 18 May 2026.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source

LoTSS DR1: Double-double radio galaxies in the HETDEX field [PDF]

, 2018
Context. Double-double radio galaxies (DDRGs) represent a short but unique phase in the life-cycle of some of the most powerful radio-loud active galactic nuclei (RLAGN). These galaxies display large-scale remnant radio plasma in the intergalactic medium
L. K. Morabito, Brienza, M, Tasse, C., Morabito, L.K., Cochrane, R.K., Harwood, J. J., Shimwell, TW, M. Brienza, Morganti, R., Jamrozy, M, Best, P.N., Smith, DJB, Gürkan, G., J. H. Croston, Röttgering, H.J.A., Williams, W.L., Morabito, LK, Hardcastle, M.J., Mahatma, VH, Hardcastle, M. J., Röttgering, HJA, Croston, J. H., Shulevski, A., Croston, J.H., K. Duncan, Tasse, C, R. Morganti, Jurlin, N, P. N. Best, Duncan, K., J. Sabater, Croston, JH, Röttgering, H. J.A., Smith, D. J.B., Mahatma, V. H., Cochrane, R. K.; id_orcid, Jamrozy, M., Harwood, J.J., Smith, D.J.B., G. Gürkan, Cochrane, R. K., M. Jamrozy, H. J. A. Röttgering, Harwood, JJ, V. H. Mahatma, Jamrozy, Marek, T. W. Shimwell, Mingo, B, Shimwell, T.W., N. Jurlin, M. J. Hardcastle, Jarvis, M. J., B. Mingo, Röttgering, H. J. A., Duncan, K, Jarvis, M.J., Morganti, R, Smith, D. J. B., Hardcastle, MJ, Best, PN, Sabater, J, Shulevski, A, W. L. Williams, Brienza, M., D. J. B. Smith, Shimwell, T. W., Jarvis, Matthew J., Mingo, B., Jurlin, N., Sabater, J., Morabito, Leah K., Morabito, L. K., M. J. Jarvis, Williams, WL, Gürkan, G, Cochrane, RK, Best, P. N., J. J. Harwood, C. Tasse, Jarvis, MJ, A. Shulevski, R. K. Cochrane, Williams, W. L., Mahatma, V.H.   +83 more
core   +1 more source