Results 11 to 20 of about 451,370 (306)
Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source
Surface Density of Disk Galaxies in MOND
Universe, 2023 In this paper, we extend a paper by Milgrom (2009, MNRAS 398, 1023) dealing with the existence of a quasi-universal surface density for object of all mass and structure, if they are in the Newtonian regime, i.e., that their mean acceleration is larger ...
Antonino Del Popolo, Morgan Le Delliou
doaj +1 more source
Acknowledgement to Reviewers of Galaxies in 2018
Galaxies, 2019 Rigorous peer-review is the cornerstone of high-quality academic publishing [...]
Galaxies Editorial Office
doaj +1 more source
Spirality: A Novel Way to Measure Spiral Arm Pitch Angle
Galaxies, 2022 We present the MATLAB code Spirality, a novel method for measuring spiral arm pitch angles by fitting galaxy images to spiral templates of known pitch. Computation time is typically on the order of 2 min per galaxy, assuming 8 GB of working memory.
Deanna Shields +9 more
doaj +1 more source
Acknowledgement to Reviewers of Galaxies in 2015
Galaxies, 2016 The editors of Galaxies would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2015. [...]
Galaxies Editorial Office
doaj +1 more source
Cosmological Model Tests with JWST
Galaxies, 2022 The James Webb Space Telescope (JWST), which has recently become operational, is capable of detecting objects at record-breaking redshifts, z≳15. This is a crucial advance for observational cosmology, as at these redshifts the differences between ...
Nikita Lovyagin +3 more
doaj +1 more source
Massive Stars in the Tarantula Nebula: A Rosetta Stone for Extragalactic Supergiant HII Regions
Galaxies, 2019 A review of the properties of the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud is presented, primarily from the perspective of its massive star content.
Paul A. Crowther
doaj +1 more source
The triggering probability of radio-loud AGN: A comparison of high and low excitation radio galaxies in hosts of different colors [PDF]
, 2012 Low luminosity radio-loud active galactic nuclei (AGN) are generally found in massive red elliptical galaxies, where they are thought to be powered through gas accretion from their surrounding hot halos in a radiatively inefficient manner.
Abazajian +30 more
core +3 more sources
Effects of Higher Order Retarded Gravity
Universe, 2021 In a recent paper, we have a shown that the flattening of galactic rotation curves can be explained by retardation. However, this will rely on a temporal change of galactic mass.
Asher Yahalom
doaj +1 more source
Structural and Morphological Properties of Ultraluminous Infrared Galaxies at 1 < z < 3
Open Astronomy, 2015 Using the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) near-infrared high-resolution imaging from the 3D-HST survey, we analyze the morphology and structure of 502 ultraluminous infrared galaxies (ULIRGs; LIR > 1012L⊙) at 1 < z < 3. Their rest-
Fang Guanwen +3 more
doaj +1 more source