Results 211 to 220 of about 948,048 (332)
The Astrophysical JournalThe abundance of satellite galaxies is set by the hierarchical assembly of their host halo. We leverage this to investigate the low-mass end ( M _H < 10 ^11 M _⊙ ) of the stellar-to-halo mass relation (SHMR), which is key to constraining theories of ...
J. Sebastian Monzon +2 more
doaj +1 more source
Constraining SN Ia progenitors from the observed Fe-peak elemental abundances in the Milky Way dwarf galaxy satellites [PDF]
Ryan K. Alexander, Fiorenzo Vincenzo
openalex +1 more source
Effects of the alarm pheromone on Triatoma pallidipennis behaviour
Physiological Entomology, Volume 50, Issue 4, Page 374-387, December 2025.T. pallidipennis performs behavioural acts in response to volatiles emitted by mechanically disturbed conspecifics. T. pallidipennis shows a repellent response when exposed to volatiles emitted by mechanically disturbed conspecifics. Isobutyric and propanoic acids can be used as repellents of T. pallidipennis. Abstract Adults of some Triatomine species,
Claudia I. Albores‐Flores +5 more
wiley +1 more source
Interstellar Nitrogen Isotope Ratios: Measurements on Tracers of C14N and C15N
The Astrophysical JournalThe nitrogen isotope ratio ^14 N/ ^15 N is a powerful tool to trace Galactic stellar nucleosynthesis and constrain Galactic chemical evolution. Previous observations have found lower ^14 N/ ^15 N ratios in the Galactic center and higher values in the ...
J. L. Chen +8 more
doaj +1 more source
GAS-PHASE OXYGEN ABUNDANCES AND RADIAL METALLICITY GRADIENTS IN THE TWO NEARBY SPIRAL GALAXIES NGC 7793 AND NGC 4945 [PDF]
, 2015 Letizia Stanghellini +5 more
openalex +1 more source
Lessons from the void: What Boltzmann brains teach
Analytic Philosophy, Volume 66, Issue 4, Page 594-621, December 2025.Abstract Some physical theories predict that almost all brains in the universe are Boltzmann brains, that is, short‐lived disembodied brains that are accidentally assembled as a result of thermodynamic or quantum fluctuations. Physicists and philosophers of physics widely regard this proliferation as unacceptable, and so take its prediction as a basis ...
Bradford Saad
wiley +1 more source
MAMMOTH-MOSFIRE: Environmental Effects on Galaxy Interstellar Medium at z ∼ 2
The Astrophysical JournalThe MAMMOTH-MOSFIRE program is a deep Keck/MOSFIRE K -band spectroscopic follow-up of emission-line galaxies identified in the MAMMOTH-Grism Hubble Space Telescope/wide-field camera 3 G141 slitless spectroscopic survey, targeting the core regions of the ...
Hang Zhou +19 more
doaj +1 more source
Formation of massive star clusters with and without iron abundance spreads in a dwarf galaxy merger [PDF]
Hidenori Matsui +3 more
openalex +1 more source
The Astrophysical JournalGas-phase metallicity gradients are a crucial element in understanding the chemical evolution of galaxies. We use the FOGGIE simulations to study the metallicity gradients (∇ Z ) of six Milky Way–like galaxies throughout their evolution.
Ayan Acharyya +9 more
doaj +1 more source
Mid-Ultraviolet Determination of Elliptical Galaxy Abundances and Ages
, 2000 J. Lotz, H. Ferguson, R. Bohlin
semanticscholar +1 more source