Results 81 to 90 of about 51,951 (281)
Close Pairs as Proxies for Galaxy Cluster Mergers
, 2008 Galaxy cluster merger statistics are an important component in understanding the formation of large-scale structure. Unfortunately, it is difficult to study merger properties and evolution directly because the identification of cluster mergers in ...
A. E. Schulz +10 more
core +1 more source
An Integral Field Study of Abundance Gradients in Nearby LIRGs [PDF]
, 2012 We present for the first time metallicity maps generated using data from the Wide Field Spectrograph (WiFeS) on the ANU 2.3m of 9 Luminous Infrared Galaxies (LIRGs) and discuss the abundance gradients and distribution of metals in these systems.
Dopita, M. A. +4 more
core +2 more sources
Advanced Intelligent Systems, EarlyView.A low‐cost, portable point‐of‐care platform for rapid Mpox detection using loop‐mediated isothermal amplification is reported. The device integrates fluorescence readout and mobile monitoring. A machine‐learning model analyzes temperature data and correlates thermal changes with DNA concentration, enabling sensitive and reliable molecular diagnosis in ...
Nazente Atceken +4 more
wiley +1 more source
The THESEUS Space Mission and the Infrared Telescope Calibration Unit
Astronomische Nachrichten, EarlyView.ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó +9 more
wiley +1 more source
Bar Formation during a Gaia-Sausage-Enceladus-like Merger Event
The Astrophysical JournalBars are among the most prominent galactic structures, yet their formation mechanisms remain incompletely understood. They can form either internally, via dynamical instabilities, or externally, triggered by interactions with other galaxies.
Bin-Hui Chen +2 more
doaj +1 more source
Numerical simulations of dwarf galaxy merger trees [PDF]
, 2014 We investigate the evolution of dwarf galaxies using N -body/SPH simulations that incorporate their formation histories through merger trees constructed using the ex- tended Press-Schechter formalism.
Cloet-Osselaer, Annelies +5 more
core +3 more sources
The Shocking Features in the Closest Rich Galaxy Cluster Norma
The Astrophysical JournalThe merger shocks generated by the collision of galaxy clusters elevate the pressure within the intracluster medium, significantly influencing the evolution of embedded cluster galaxies.
Chong Ge +4 more
doaj +1 more source
Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves
Astronomische Nachrichten, EarlyView.ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón +4 more
wiley +1 more source
Sumo Puff: Tidal Debris or Disturbed Ultra-Diffuse Galaxy?
, 2017 We report the discovery of a diffuse stellar cloud with an angular extent $\gtrsim30^{\prime\prime}$, which we term "Sumo Puff", in data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). While we do not have a redshift for this object, it is
Goulding, Andy D. +12 more
core +1 more source
The Halo Shape and Evolution of Polar Disc Galaxies [PDF]
, 2012 We examine the properties and evolution of a simulated polar disc galaxy. This galaxy is comprised of two orthogonal discs, one of which contains old stars (old stellar disc), and the other, containing both younger stars and the cold gas (polar disc) of ...
A. Knebe +62 more
core +7 more sources