Results 61 to 70 of about 2,970 (256)
New Arabic Records From Cairo on Supernovae 1181 and 1006
Astronomische Nachrichten, EarlyView.ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer +3 more
wiley +1 more source
Investigating the Kinematics of Central and Satellite Galaxies Using Normalizing Flows
The Astrophysical JournalGalaxy clustering contains information on cosmology, galaxy evolution, and the relationship between galaxies and their dark matter hosts. On small scales, the detailed kinematics of galaxies within their host halos determines the galaxy clustering.
K. J. Kwon, ChangHoon Hahn
doaj +1 more source
Overconsumption, outflows and the quenching of satellite galaxies [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2014 Abstract The baryon cycle of galaxies is a dynamic process involving the intake, consumption and ejection of vast quantities of gas. In contrast, the conventional picture of satellite galaxies has them methodically turning a large gas reservoir into stars until this reservoir is forcibly removed due to external ram pressure. This picture
Sean L. McGee +3 more
openaire +5 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin +10 more
wiley +1 more source
Dynamics of the Galaxy's Satellites
, 2000 7 pages to appear in 'Star2000 -- Dynamics of Star Clusters and the Milky Way' eds R. Spurzem & R.
openaire +4 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT As the urgency to address global crises such as climate change and inequality intensifies, the concept of regenerative development has emerged as a transformative approach going beyond sustainability to actively restore and enhance both ecological and social systems.
Leonie Paul +3 more
wiley +1 more source
StreamGen: Connecting Populations of Streams and Shells to Their Host Galaxies
The Astrophysical JournalIn this work, we study how the abundance and dynamics of populations of disrupting satellite galaxies change systematically as a function of host galaxy properties.
Adriana Dropulic +5 more
doaj +1 more source
Resolved Star Formation in TNG100 Central and Satellite Galaxies
The Astrophysical Journal, 2023 Recent cosmological hydrodynamical simulations have produced populations of numerical galaxies whose global star-forming properties are in good agreement with those of observed galaxies.
Bryanne McDonough +2 more
doaj +1 more source
Satellite galaxies in nearby groups of galaxies
, 2015 We analyse distribution, kinematics and star-formation (SF) properties of satellite galaxies in three different samples of nearby groups. We find that studied groups are generally well approximated by low-concentration NFW model, show a variety of LOS velocity dispersion profiles and signs of SF quenching in outskirts of dwarf satellite galaxies.
Vennik, J., Hopp, U.
openaire +2 more sources
The rise and fall of satellites in galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 1997 Revised to match the published ...
Giuseppe Tormen, Giuseppe Tormen
openaire +4 more sources