Results 81 to 90 of about 64,819 (265)

The Supersonic Project: The Eccentricity and Rotational Support of SIGOs and DM GHOSts

The Astrophysical Journal, 2023
A supersonic relative velocity between dark matter (DM) and baryons (the stream velocity) at the time of recombination induces the formation of low-mass objects with anomalous properties in the early universe.
Claire E. Williams, Smadar Naoz, William Lake, Yeou S. Chiou, Blakesley Burkhart, Federico Marinacci, Mark Vogelsberger, Gen Chiaki, Yurina Nakazato, Naoki Yoshida   +9 more
doaj   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

Breaking the Degeneracy between Warps and Radial Flows in External Galaxies

The Astrophysical Journal
Observations of the line-of-sight (LOS) component of emitter velocities in galaxies are valuable for reconstructing their two-dimensional (2D) velocity fields, albeit requiring certain assumptions.
Francesco Sylos Labini, Giordano De Marzo, Matteo Straccamore   +2 more
doaj   +1 more source

Flattened Galaxy Rotation Curves in the Exochronous Metric

Galaxies
We examine some of the consequences of the Exochronous (timeless) metric and the associated ΣGR cosmological model for the formation of galaxies, and, in particular, their characteristic rotation curves.
Robin Booth
doaj   +1 more source

PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry

The Astrophysical Journal Supplement Series, 2022
We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone, Stéphane Courteau, Nikhil Arora, Matthew Frosst, Thomas H. Jarrett   +4 more
doaj   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Declining Rotation Curves at z = 2 in ΛCDM Galaxy Formation Simulations [PDF]

, 2017
Selecting disk galaxies from the cosmological, hydrodynamical simulation Magneticum Pathfinder, we show that almost half of our poster child disk galaxies at z = 2 show significantly declining rotation curves and low dark matter fractions, very similar ...
Adelheid F. Teklu, R. Remus, K. Dolag, A. Arth, A. Burkert, A. Obreja, F. Schulze   +6 more
semanticscholar   +1 more source

Many body gravity and the galaxy rotation curves

European Physical Journal C: Particles and Fields
A novel theory was proposed earlier to model systems with thermal gradients, based on the postulate that the spatial and temporal variation in temperature can be recast as a variation in the metric.
S. Ganesh
doaj   +1 more source

Rotation curves of luminous spiral galaxies [PDF]

Astronomische Nachrichten, 2011
AbstractWe have investigated the stellar light distribution and the rotation curves of high‐luminosity spiral galaxies in the local Universe. The sample contains 30 high‐quality extended Hα and H I rotation curves. The stellar disk scale‐length of these objects was measured or taken from the literature.
Yegorova, I. A., Babic, A., Salucci, Paolo, Spekkens, K., Pizzella, A.   +4 more
openaire   +3 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source