Results 71 to 80 of about 300,769 (347)

Rapid contraction of giant planets orbiting the 20-million-year-old star V1298 Tau [PDF]

, 2021
A. Suárez Mascareño, M. Damasso, N. Lodieu, A. Sozzetti, V. J. S. Béjar, S. Benatti, M. R. Zapatero Osorio, G. Micela, R. Rébolo, S. Desidera, F. Murgas, R. Claudi, J. I. Gónzalez Hernández, L. Malavolta, C. del Burgo, V. D’Orazi, P. J. Amado, D. Locci, H. M. Tabernero, F. Marzari, David S. Aguado, D. Turrini, C. Cardona Guillén, B. Toledo-Padrón, A. Maggio, J. Aceituno, F. F. Bauer, J. A. Caballero, P. Chinchilla, E. Esparza-Borges, E. González-Álvarez, T. Granzer, R. Luque, E. L. Martı́n, G. Nowak, M. Oshagh, Ε. Πάλλη, H. Parviainen, A. Quirrenbach, A. Reiners, I. Ribas, K. G. Strassmeier, M. Weber, M. Mallonn   +43 more
openalex   +1 more source

Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity

Arthritis Care &Research, EarlyView.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

Quantum mechanism of extremely high energy processes at neutron star collapse and of quasar luminosity

Journal of High Energy Physics, 2022
Using the braid group topological approach to quantum statistics we demonstrate that for strong gravitational field occurring in neutron star merger with mass exceeding the Tolman, Oppenheimer and Volkoff limit the quantum statistics of particles beneath
Janusz Edward Jacak
doaj   +1 more source

Massive Star Formation in the Ultraviolet Observed with the Hubble Space Telescope

Galaxies, 2020
Spectroscopic observations of a massive star formation in the ultraviolet and their interpretation are reviewed. After a brief historical retrospective, two well-studied resolved star clusters and the surrounding H II regions are introduced: NGC 2070 in ...
Claus Leitherer
doaj   +1 more source

The star cluster system of the 3 Gyr old merger remnant NGC 1316: Clues from optical and near-infrared photometry

, 2001
The giant merger remnant galaxy NGC 1316 (Fornax A) is an ideal probe for studying the long-term effects of a past major merger on star cluster systems, given its spectroscopically derived merger age of ~3 Gyr which we reported in a recent paper. Here we
Alonso, M. Victoria, Goudfrooij, Paul, Maraston, Claudia, Minniti, Dante   +3 more
core   +2 more sources

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source

James Webb Space Telescope Observations of the Nearby and Precisely Localized FRB 20250316A: A Potential Near-IR Counterpart and Implications for the Progenitors of Fast Radio Bursts

The Astrophysical Journal Letters
We present deep James Webb Space Telescope near-infrared imaging to search for a quiescent or transient counterpart to FRB 20250316A, which was precisely localized with the CHIME Outriggers array to an area of 11 × 13 pc in the outer regions of NGC 4141 ...
Peter K. Blanchard, Edo Berger, Shion E. Andrew, Aswin Suresh, Kohki Uno, Charles D. Kilpatrick, Brian D. Metzger, Harsh Kumar, Navin Sridhar, Amanda M. Cook, Yuxin Dong, Tarraneh Eftekhari, Wen-fai Fong, Walter W. Golay, Daichi Hiramatsu, Ronniy C. Joseph, Victoria M. Kaspi, Mattias Lazda, Calvin Leung, Kiyoshi W. Masui, Juan Mena-Parra, Kenzie Nimmo, Aaron B. Pearlman, Vishwangi Shah, Kaitlyn Shin, Sunil Simha   +25 more
doaj   +1 more source

Rapidly oscillating M giant stars? [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
ABSTRA C T The Hipparcos mission discovered a few dozen M giant stars with periods P shorter than 10 d. Similar stars may be found in other large data bases of new variables (e.g., OGLE). The three possible sources of the magnitude variations ‐ pulsation, starspots and ellipsoidal deformation ‐ are discussed in general terms.
C. Koen, D. Laney
openaire   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Infrared Survey of Giant M Stars

Journal of Mathematical and Fundamental Sciences, 2019
. A spectrocospic survey in an area of 5 squares degrees, located in the general direction of the Palomar-Groningen Variable-Star Field 2 , yields 263 Giant M stars.
Bambang Hidajat
doaj