Results 81 to 90 of about 402,684 (314)
On the origin of the stellar halo and multiple stellar populations in the globular cluster NGC 1851
, 2011 We propose that the observed stellar halo around the globular cluster (GC) NGC 1851 is evidence for its formation in the central region of its defunct host dwarf galaxy.
Anderson +69 more
core +1 more source
The unexpected diversity of dwarf galaxy rotation curves [PDF]
, 2015 We examine the circular velocity profiles of galaxies in A cold dark matter (CDM) cosmological hydrodynamical simulations from the EAGLE and LOCAL GROUPS projects and compare them with a compilation of observed rotation curves of galaxies spanning a wide
K. Oman +11 more
semanticscholar +1 more source
Evolution of Terrestrial Planetary Bodies and Implications for Habitability
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract The terrestrial planetary bodies of our solar system—Mercury, Venus, Earth, and Mars—share a common origin through nebular accretion and early magma ocean differentiation, yet they diverged significantly in geological evolution, tectonic regimes, and habitability.
Peter A. Cawood +4 more
wiley +1 more source
Quantifying Bursty Star Formation in Dwarf Galaxies
The Open Journal of AstrophysicsDwarf galaxy star formation histories are theoretically expected to be bursty, potentially leaving distinct imprints on their chemical evolution. We propose that episodic starbursts with quiescent periods longer than ~100 Myr should lead to discontinuous
Yuan-Sen Ting, Alexander Ji
doaj +1 more source
The Astrophysical Journal Letters, 2023 Local low-metallicity dwarf galaxies are relics of the early universe and are thought to hold clues into the origins of supermassive black holes. While recent studies are uncovering a growing population of active galactic nuclei (AGNs) in dwarf galaxies,
Michael Reefe +13 more
doaj +1 more source
Properties of the Dwarf Galaxy Population in Galaxy Clusters
, 2008 We present the observational properties of the dwarf galaxy population (Mr > M*+1) corresponding to one of the largest samples of spectroscopically confirmed galaxy cluster members reported in the literature. We have observed that red dwarf galaxies (u-r
Aguerri +26 more
core +1 more source
Dust in Nearby DWARF Galaxies [PDF]
Symposium - International Astronomical Union, 1994 The aim of the present paper is to look for the gas-to-dust ratio in different types of galaxies and for a correlation between this ratio and the metallicity in dwarf galaxies. The recent compilation of data on nearby galaxies by Schmidt & Boller (1992, hereinafter SB) including HI and dust ...
K.-H. Schmidt, T. Boller
openaire +1 more source
Visionaries and Crackpots, Maniacs and Saints: Existential Risk and the Politics of Longtermism
Ratio, Volume 38, Issue 4, Page 268-278, December 2025.ABSTRACT Despite advancing strong claims about our collective priorities, longtermism has received little attention in debates in political philosophy. I first provide an account of longtermism that highlights the way it departs from established work on intergenerational justice.
Alex McLaughlin
wiley +1 more source
Constraining Star-Formation Driven Outflows in Local Dwarf Galaxies with Herschel
Physical Sciences Forum, 2023 Galactic feedback (i.e., outflows) plays a fundamental role in regulating galaxy formation and evolution. We investigate the physical properties of galactic outflows in a sample of 29 local low-metallicity dwarf galaxies drawn from the Dwarf Galaxy ...
Michael Romano
doaj +1 more source
Discovery of a Dwarf Post-Starburst Galaxy Near a High Column Density Ly-alpha Absorber [PDF]
, 2003 We report the discovery of a dwarf (M_B = -13.9) post-starburst galaxy coincident in recession velocity (within uncertainties) with the highest column density absorber (N_HI = 10^15.85 cm^{-2} at cz = 1586 km/s) in the 3C~273 sightline. This galaxy is by
Babul A. +9 more
core +2 more sources