Results 141 to 150 of about 695,772 (397)

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

open access: yesAstronomische 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

The Optical Variability of the BL Lac AO 0235+164

open access: yesGalaxies, 2016
In this work, we present optical R band observations of AO 0235+164 carried out during the period of November 2006 to December 2012 using the Ap6E CCD camera attached to the primary focus of the 70 cm meniscus telescope at Abastumani Observatory, Georgia.
Junhui Fan   +12 more
doaj   +1 more source

Secular Evolution and the Formation of Pseudobulges in Disk Galaxies [PDF]

open access: yes, 2004
▪ Abstract The Universe is in transition. At early times, galactic evolution was dominated by hierarchical clustering and merging, processes that are violent and rapid.
J. Kormendy, R. Kennicutt
semanticscholar   +1 more source

The dust masses of powerful radio galaxies: clues to the triggering of their activity [PDF]

open access: yes, 2014
We use deep Herschel Space Observatory observations of a 90% complete sample of 32 intermediate-redshift 2Jy radio galaxies (0.05 < z < 0.7) to estimate the dust masses of their host galaxies and thereby investigate the triggering mechanisms for their ...
Almeida, C.   +7 more
core   +4 more sources

Understanding Degradation Mechanisms in Water‐In‐Salt Electrolyte. Part 2: Impact of the Electrochemical Parameters on the Cycling Behavior of LiFePO4 versus TiS2

open access: yesBatteries &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

Theoretical Re-evaluations of Scaling Relations between SMBHs and Their Host Galaxies—1. Effect of Seed BH Mass

open access: yesFrontiers in Astronomy and Space Sciences, 2017
We use a semi-analytic model of galaxy formation and investigate how the mass of a seed black hole affect the scaling relation between black hole mass and bulge mass at z ~ 0.
Hikari Shirakata   +10 more
doaj   +1 more source

UV Excess Galaxies: Wolf-Rayet Galaxies

open access: yesThe Astrophysical Journal, 2000
4 pages, including 4 figures. Uses AASTeX and emulateapj5.sty.
Brown, Warren R.   +3 more
openaire   +2 more sources

Properties of bars in the local universe

open access: yes, 2008
We studied the fraction and properties of bars in a sample of about 3000 galaxies extracted from SDSS-DR5. This represents a volume limited sample with galaxies located between redshift 0.01-20, and inclination i < 60.
Aguerri, J. A. L.   +2 more
core  

Parametric Recovery of Line‐of‐Sight Velocity Distributions from Absorption‐Line Spectra of Galaxies via Penalized Likelihood [PDF]

open access: yes, 2003
We investigate the accuracy of the parametric recovery of the line‐of‐sight velocity distribution (LOSVD) of the stars in a galaxy while working in pixel space.
M. Cappellari, E. Emsellem
semanticscholar   +1 more source

Dwarf galaxies: Important clues to galaxy formation [PDF]

open access: yesAstrophysics and Space Science, 2003
10 pages, 4 figures, Invited talk in "Galaxy Evolution III: From Simple Approaches to Self-Consistent Models" (Kiel, Germany, July 16-20, 2002) eds. G.
openaire   +3 more sources

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