Results 91 to 100 of about 480,960 (375)
Astronomische Nachrichten, EarlyView.ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley +1 more source
, 2013 The cosmological peculiar velocity field (deviations from the pure Hubble flow) of matter carries significant information on dark energy, dark matter and the underlying theory of gravity on large scales.
A. Cimatti +23 more
core +1 more source
Peculiar Velocities of Nearby Galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 Over the last five years, enormous progress in accurate distance measurements for nearby galaxies has been attained. The Hubble Space Telescope allows us to estimate distances of about 7–10% accuracy using red giant branch (RGB) up to 8 Mpc. Now we have very accurate distances for more than 200 galaxies within ~6 Mpc.
D. Makarov +9 more
openaire +1 more source
A multiwavelength view of the galaxy cluster Abell 523 and its peculiar diffuse radio source [PDF]
, 2015 We study the structure of the galaxy cluster Abell 523 (A523) at z=0.104 using new spectroscopic data for 132 galaxies acquired at the Telescopio Nazionale Galileo, new photometric data from the Isaac Newton Telescope, and X-ray and radio data from the ...
M. Girardi +12 more
semanticscholar +1 more source
Batteries &Supercaps, EarlyView.Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet +7 more
wiley +1 more source
The Complex Multiwavelength Morphology of the Peculiar Compact Galaxy Group IC 2431
The Astrophysical JournalWe present new Chandra X-ray imaging spectroscopy of the compact galaxy group IC 2431, and compare with archival ultraviolet, optical, infrared, and radio images. IC 2431 is a starburst system containing three tidally distorted disk galaxies.
Beverly J. Smith +5 more
doaj +1 more source
CMB Multipole Expansion in a Frame Dragging-Sustained Milky Way
GalaxiesWe study the impact on the cosmic microwave background (CMB) landscape of peculiar rotational general relativistic effects. These effects, on galactic scales, do not possess a Newtonian analogue, and therefore could a priori impact CMB analysis.
Federico Re +2 more
doaj +1 more source
SDSS superclusters: morphology and galaxy content
, 2014 We compare the galaxy populations in superclusters of different morphology in the nearby Universe (180 < d < 270 Mpc) to see whether the inner structure and overall morphology of superclusters are important in shaping galaxy properties in superclusters ...
Einasto, J. +5 more
core +1 more source
GASP. XVI. Does cosmic web enhancement turn on star formation in galaxies? [PDF]
, 2019 Galaxy filaments are a peculiar environment, and their impact on the galaxy properties is still controversial. Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP), we provide the first characterisation of the spatially ...
Bettoni, Daniela +8 more
core +2 more sources
The peculiar radio galaxy 4C 35.06: a case for recurrent AGN activity? [PDF]
, 2015 Using observations obtained with the LOw Fequency ARray (LOFAR), the Westerbork Synthesis Radio Telescope (WSRT) and archival Very Large Array (VLA) data, we have traced the radio emission to large scales in the complex source 4C 35.06 located in the ...
A. Shulevski +102 more
semanticscholar +1 more source