Results 91 to 100 of about 1,055 (264)
The Kinematic Signature of the Warp and Waves in the Milky Way Disk
The Astrophysical JournalUsing over 170,000 red clump (RC) stars selected from LAMOST and APOGEE, we conduct a detailed analysis of the stellar V _Z as a function of L _Z (or R _g ) across different ϕ bins for various disk populations.
Weixiang Sun +3 more
doaj +1 more source
The Astronomical JournalWe present a flare temperature study of the highly active M dwarf Wolf 359 using simultaneous multiband ( u , g , r , i , and z ) photometric observations from the Lulin 1 m and 41 cm telescopes.
Chia-Lung Lin +4 more
doaj +1 more source
Role of Nonthermal Processes in the Quiescent and Active Millimeter Spectrum of a Young M Dwarf
The Astrophysical JournalMillimeter (mm) emission from F-M dwarfs (cool stars) primarily traces chromospheric activity, with thermal emission thought to dominate in quiescence. Despite the high chromospheric activity, the quiescent mm spectral fluence (mm- S ( ν )) of young (1 ...
Atul Mohan +5 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li +12 more
wiley +1 more source
The Anatomical Record, EarlyView.This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose +2 more
wiley +1 more source
The Solar-like Latitudinal Distribution of Flaring Activities Revealed by TESS, APOGEE, and GALAH
The Astrophysical Journal Supplement SeriesFlare flux reflects the contribution from active regions rather than the contribution from the entire hemisphere of a star. Unlike the amplitude of light curves caused by starspots, flare detection is independent of inclination.
Huiqin Yang +4 more
doaj +1 more source
Stellar Flares, Superflares, and Coronal Mass Ejections—Entering the Big Data Era
UniverseFlares, sometimes accompanied by coronal mass ejections (CMEs), are the result of sudden changes in the magnetic field of stars with high energy release through magnetic reconnection, which can be observed across a wide range of the electromagnetic ...
Krisztián Vida +8 more
doaj +1 more source
Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
The Anatomical Record, EarlyView.Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +1 more source
Comparative Statistics of Solar Flares and Flare Stars
Solar PhysicsAbstract The distribution of interval times between recurrent discrete events, such as Solar and stellar flares, reflects their underlying dynamics. Log-normal functions provide good fits to the interval time distributions of many astronomical processes.
Jonathan Katz +3 more
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source