Results 71 to 80 of about 887 (163)

Galaxy Clusters from the DESI Legacy Imaging Surveys. II. Environmental Effects on the Size–Mass Relation

The Astrophysical Journal
To investigate the environmental effects on the growth of galaxies, we study the size–mass relation across a broad range of environments with a vast sample of approximately 32 million galaxies at z < 0.5 from the DESI Legacy Imaging Surveys.
Zhaobin Chen, Yizhou Gu, Hu Zou, Qirong Yuan   +3 more
doaj   +1 more source

The Shape of the Chameleon Fifth-Force on the Mass Components of Galaxy Clusters

Universe
In the context of chameleon gravity, we present a semi-analytical solution of the chameleon field profile in an accurately modelled galaxy cluster’s mass components, namely the stellar mass of the Brightest Cluster Galaxy (BCG), the baryonic mass in ...
Lorenzo Pizzuti, Valentina Amatori, Alexandre M. Pombo, Sandeep Haridasu   +3 more
doaj   +1 more source

Galaxy Superclusters Detected in the Modified PF-Catalog Using the FOF Method

Open Astronomy, 2011
The Modified Catalog of Galaxy Clusters and Groups (Panko & Flin 2006, PF), covering an area of 5000 square degrees in the southern sky, was used as the input for the search of galaxy superclusters.
Panko E.
doaj   +1 more source

Circadian clock disruption promotes retinal photoreceptor degeneration

The FASEB Journal, Volume 39, Issue 7, 15 April 2025.
Mice carrying a knock‐in of the P23H mutation of the rhodopsin gene are a well‐characterized model of retinitis pigmentosa (RP), a hereditary retinal degeneration affecting primarily rods. Here, by combining the P23H Rho mutation with the rod‐specific invalidation of the Bmal1 clock gene and by performing functional, structural, and molecular analyses,
Shumet T. Gegnaw, Cristina Sandu, Amandine Bery, Jacoline B. ten Brink, Nemanja Milićević, Aldo Jongejan, Perry D. Moerland, Arthur A. Bergen, Marie‐Paule Felder‐Schmittbuhl   +8 more
wiley   +1 more source

Correlation Between the Delay and Rise Time of VLF/LF Amplitudes During 20 Solar X‐Ray Flares Observed in February 2014 at Mid‐Latitude

Radio Science, Volume 60, Issue 4, April 2025.
Abstract During daylight hours, the concentration of electrons in the ionosphere can be amplified by solar flares, which may subsequently influence the propagation of radio waves. Previous research on Very Low Frequency (VLF) signals focused on X‐class and M‐class flares.
Y. Liu, M. Füllekrug
wiley   +1 more source

Environmental dependence of the structure of brightest cluster galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2005
11 pages, accepted for publication in ...
Sarah Brough, Sarah Brough, P. Lynam, Chris A. Collins, Robert G. Mann, Douglas Burke   +5 more
openaire   +5 more sources

Extended Radio Emission in the Perhipheral Regions of the Shapley Concentration Core

Galaxies, 2017
The Shapley Concentration (SC) is a galaxy supercluster (few tens of degrees) in the Local Universe (<z>∼0.048) which is currently undergoing cluster mergers and group accretion.
Tiziana Venturi, Sandro Bardelli, Daniele Dallacasa, Gabriella Di Gennaro, Fabio Gastaldello, Simona Giacintucci, Mariachiara Rossetti   +6 more
doaj   +1 more source

Review of asteroid, meteor, and meteorite‐type links

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 928-973, April 2025.
Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens, Hadrien A. R. Devillepoix   +1 more
wiley   +1 more source

Impact of Sudden Stratospheric Warming and Elevated Stratopause Events on the Very Low Frequency Radio Signal

Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.
Abstract Sudden Stratospheric Warmings (SSW) and Elevated Stratopause (ES) events are mid‐to‐high latitudinal, atmospheric wave‐driven phenomena leading to significant changes in wind, temperatures, and vertical mass transport, especially at stratospheric and mesospheric altitudes.
H. Schneider, V. Wendt, D. Banyś, M. Hansen, M. Clilverd, P. T. Verronen   +5 more
wiley   +1 more source

Commodity risk assessment of Populus alba, Populus nigra and Populus tremula plants from the UK

EFSA Journal, Volume 23, Issue 3, March 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Anna Berlin, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Francesco Di Serio, Anna Filipiak, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van Der Gaag, Andrea Battisti, Claude Bragard, Christer Sven Magnusson, Hugo Mas, Daniel Rigling, Massimo Faccoli, Alžběta Mikulová, Fabio Stergulc, Eugen Christoph, Olaf Mosbach‐Schulz, Franz Streissl, Paolo Gonthier   +32 more
wiley   +1 more source