Results 141 to 150 of about 83,866 (252)
Spectroscopic Study of Globular and Fuzzy Clusters in Lenticular Galaxy NGC 1023
The Astrophysical JournalWe here report the results from spectroscopic observations of a sample of 26 globular cluster (GC) and 21 faint fuzzy (FF) candidates in the lenticular galaxy NGC 1023 using the 10.4 m Gran Telescopio Canarias.
M. A. López-Santamaría +7 more
doaj +1 more source
The physiology of survival: Space
Experimental Physiology, EarlyView.
Damian M. Bailey, Angelique van Ombergen
wiley +1 more source
Wildlife Biology, Volume 2026, Issue 3, May 2026.Intergroup conflicts have a wide range of impacts, including affecting movement and ranging patterns. Previous studies found contrasting movement responses to intergroup conflicts, but no explanation for these differences has been suggested. However, these can be broadly grouped into ‘conflict avoidance' responses: avoiding areas close to the fight ...
Elizabeth F. R. Preston +3 more
wiley +1 more source
Igniting Galaxy Formation in the Postreionization Universe
The Astrophysical JournalIt is widely believed that the ultraviolet background produced during the epoch of reionization conspires against the formation of low-mass galaxies. Indeed, this mechanism is often invoked as part of the solution to the so-called “missing satellites ...
Jorge Moreno +11 more
doaj +1 more source
[Y/Mg] as a Stellar Chronometer: Combining Asteroseismic and Chemical Data
GalaxiesThe determination of stellar ages remains one of the greatest challenges in astrophysics, as age cannot be directly measured. Advances over the last decade highlight a great potential of chemical clocks, particularly abundance ratios involving s-process ...
Carlos Viscasillas Vázquez +8 more
doaj +1 more source
Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions
Earth's Future, Volume 14, Issue 5, May 2026.Abstract Satellite megaconstellations (SMCs) are driving rapid increases in rocket launch and re‐entry rates, emitting pollutants throughout the atmosphere. The environmental impact of SMCs lacks characterization to determine the need for regulation. We utilize a global 3D emission inventory of recent (2020–2022) space activity that distinguishes SMC ...
Connor R. Barker +12 more
wiley +1 more source
Two Distinct Classes of Quiescent Galaxies at Cosmic Noon Revealed by JWST PRIMER and UNCOVER
The Astrophysical Journal LettersWe present a measurement of the low-mass quiescent size–mass relation at cosmic noon (1 < z < 3) from the JWST PRIMER and UNCOVER treasury surveys, which highlights two distinct classes of quiescent galaxies.
Sam E. Cutler +33 more
doaj +1 more source
There are more things in heaven and Earth than we dream of in our physiology
The Journal of Physiology, EarlyView.
Victor A. Maltsev +2 more
wiley +1 more source
WACCM‐X Simulation of the Atmosphere From 1950 Through 2024 at an Hourly Resolution
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract Modeling of the upper atmosphere, namely the thermosphere and ionosphere, is becoming important for applications such as orbital propagation (including satellite collision avoidance), radio propagation for communications, radar and position, navigation and timing.
M. K. Brown +3 more
wiley +1 more source
Asteroseismology of Metal-poor Red Giants Observed by TESS
The Astrophysical JournalGalactic archeology has long been limited by a lack of precise masses and ages for metal-poor stars in the Milky Way’s thick disk. However, with TESS providing a growing number of photometric observations, it is possible to calculate masses and ages for ...
Corin Marasco +2 more
doaj +1 more source