Results 81 to 90 of about 8,619 (182)
Secondary evolution of galaxies investigated by N-body simulations [PDF]
, 2008 In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core
Multiple mechanisms quench passive spiral galaxies [PDF]
, 2017 We examine the properties of a sample of 35 nearby passive spiral galaxies in order to determine their dominant quenching mechanism(s). All five low-mass (M⋆ < 1 × 1010 M⊙) passive spiral galaxies are located in the rich Virgo cluster.
Fraser-McKelvie, Amelia +9 more
core +1 more source
Small, Volume 22, Issue 41, 22 July 2026.This study reports intrinsically stretchable neuromorphic devices that exhibit outstanding mechanical stability while fully preserving their electrical characteristics over 105 repeated deformation cycles under 50% tensile strain. Such robustness is achieved through a rational molecular design strategy that systematically modulates the chain packing of
Kwan‐Nyeong Kim +12 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.Abstract The data from a cosmic ray (CR) detector in Mexico City were collected over a period of 2 years from September 2023 to September 2025, during the maximum phase of Solar Cycle 25. The CR detector consists of an array of scintillators and measures the muonic component of secondary CRs.
D. Martínez‐Montiel +4 more
wiley +1 more source
Supernovae and molecular clouds in spiral galaxies [PDF]
, 2001 We report N-body simulations of the birthrate and distribution of supernovae in spiral galaxies. The simulations assume that stars form in GMCs with mass greater than 10(5) Mcircle dot and that a Miller-Scalo IMF results.
Song, GX +4 more
core
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1593-1609, July 2026.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
SECULAR EVOLUTION OF SPIRAL GALAXIES [PDF]
Journal of The Korean Astronomical Society, 2003 15 pages, 8 figures, Invited talk presented at the 2nd APCTP workshop on Astrophysics, Pohang, Korea (June 2002)
openaire +2 more sources
Measuring the star formation rate density from CNOC2 [PDF]
, 2006 This thesis charts the evolution of the Universal Star Formation Rate Density (SFRD) across the redshift range 0.2 < z < 0.6, using the 2nd Canadian Network for Observational Cosmology Survey (CN0C2).
Whitaker, Richard James
core
A Constellation of Fluorescent Biosensors to Illuminate the Galaxy of Protein Kinases
ChemBioChem, Volume 27, Issue 11, 15 June 2026.Protein kinases (PKs) are enzymes that catalyze phosphorylation of protein substrates involved in a wide variety of biological signalling pathways. This review describes the different families and mechanisms of action and regulation of protein kinases, together with the different classes of fluorescent biosensors that have been engineered and ...
Timothe Abbura, May C. Morris
wiley +1 more source
Simulations of normal spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 Accepted for publication in: Monthly Notices of the Royal Astron. Soc. The astro-ph copy has a few figures with degraded resolution. A copy with high quality graphics (4281 kb) can be downloaded from the kapteyn institute weg page at http://www.astro.rug.nl (Goto preprints and preprints 2003)
openaire +2 more sources