Results 61 to 70 of about 4,131 (126)

Galaxy Formation from the Primordial Black Holes

open access: yesEPJ Web of Conferences, 2017
Supermassive black hole (SMBH) of size MBH = 106-10M⊙ is common in the Universe and it defines the center of the galaxy. A galaxy and the SMBH are generally thought to have co-evolved.
Morikawa Masahiro
doaj   +1 more source

Made-to-measure dynamical particle models of elliptical galaxies [PDF]

open access: yes, 2007
NMAGIC modelling: Syer and Tremaine (1996) proposed a made-to-measure (M2M) algorithmto construct N-particle systems from observational data and used it to generate a triaxial model from density observables.
De Lorenzi, F., De Lorenzi, Flavio
core   +1 more source

Safe, Simple, and Rapid: A Minimally Invasive Coding Technique for Identifying Individuals of the Endangered Mongolian Racerunner (Eremias argus)

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
The second figure clearly illustrates the key coding method proposed in this paper. ABSTRACT Individual identification is essential for wildlife population research but commonly relies on invasive methods that may negatively affect animal welfare.
Jae Young Song   +3 more
wiley   +1 more source

Secondary evolution of galaxies investigated by N-body simulations

open access: yes, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core  

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

open access: yesAdvanced Science, Volume 13, Issue 18, 27 March 2026.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das   +13 more
wiley   +1 more source

Elliptical galaxies: fundamental relations, environmental effects and peculiar motions [PDF]

open access: yes, 1993
This thesis investigates the reliability of the D - σ and D - Mg(_2) distance indicators for elliptical galaxies. In particular, we test whether these empirical correlations are affected by differences in the stellar populations of elliptical galaxies ...
Llorente, R.G, Llorente, Rafael Guzmán
core  

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

open access: yesAstronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik   +12 more
wiley   +1 more source

Causal Discovery in Astrophysics: Unraveling Supermassive Black Hole and Galaxy Coevolution

open access: yesThe Astrophysical Journal
Correlation does not imply causation, but patterns of statistical association between variables can be exploited to infer a causal structure (even with purely observational data) with the burgeoning field of causal discovery.
Zehao Jin   +11 more
doaj   +1 more source

The colours of elliptical galaxies

open access: yes, 2006
We have compiled a sample of 2728 nearby (z < 0.08) elliptical galaxies with photometry in the g, r, i, z bands from the Sloan Digital Sky Survey (SDSS) and J, H, K photometry from the Two-Micron All-Sky Survey (2MASS).
Ivezić, Ž.   +20 more
core   +1 more source

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