Results 51 to 60 of about 407,723 (180)
The Galactic Radial Gradient of Velocity Dispersion [PDF]
Symposium - International Astronomical Union, 1985 The kinematical study of the stars in the solar neighbourhood allows, via the equation of the so-called asymmetrical drift, to deduce the sum of the gradients of the density and the velocity dispersions, . In order to deduce the density gradients in the solar neighbourhood, the second term is generally supposed to be zero.
Michel Mayor, Edouard Oblak
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Analysis of terahertz generation using tilted-pulse-fronts
, 2018 A 2-D spatio-temporal analysis of terahertz generation by optical rectification of tilted-pulse-fronts is presented. Closed form expressions of terahertz transients and spectra in two spatial dimensions are furnished in the undepleted limit. Importantly,
Kärtner, Franz X., Ravi, Koustuban
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Weak Lensing Detection of Cl 1604+4304 at z = 0.90
, 2004 We present a weak lensing analysis of the high-redshift cluster Cl 1604+4304. At z=0.90, this is the highest-redshift cluster yet detected with weak lensing.
Bower R. G. +9 more
core +3 more sources
Velocity Dispersion of Excited H2
, 2005 We present a study of the high rotational bands (J > 2) of H2 toward 4 early type galactic stars: HD 73882, HD 192639, HD 206267, and HD 207538. In each case, the velocity dispersion - characterized by the spectrum fitting parameter b - increases with the level of excitation, a phenomenon that has previously been detected by the Copernicus and IMAPS
Lacour, S. +6 more
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Group-velocity-dispersion engineering of tantala integrated photonics
Optics Letters, 2021 Designing integrated photonics, especially to leverage Kerr-nonlinear optics, requires accurate and precise knowledge of the refractive index across the visible to infrared spectral ranges. Tantala ( T a 2 O 5 ) is an ...
Jennifer A. Black +5 more
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Automatic Single Droplet Generator with Control over Droplet Size and Detachment Frequency
Colloids and Interfaces, 2019 This paper presents a quite simple, fully automatized single droplet generator, which can be an alternative for more expensive and complicated microfluidic devices. The simple generation nozzle connected to the pressure cells and cheap peristaltic pumps,
Dorota Gawel, Jan Zawala
doaj +1 more source
, 2017 We present Keck/OSIRIS adaptive optics observations with 150-400 pc spatial sampling of 7 turbulent, clumpy disc galaxies from the DYNAMO sample ($0 ...
Abraham, R. +7 more
core +1 more source
, 2009 We investigate the mean velocity dispersion and the velocity dispersion profile of stellar systems in MOND, using the N-body code N-MODY, which is a particle-mesh based code with a numerical MOND potential solver developed by Ciotti, Londrillo and Nipoti
Angus +38 more
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The velocity dispersion among galaxies
The Astrophysical Journal, 1981 The galaxies in the Revised Shapley-Ames redshift catalog, which is complete to Broughly-equal13, are used to determine the velocity dispersion in the local galaxy field (..nu..
A. R. Rivolo, A. Yahil
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On the Origin of the Variety of Velocity Dispersion Profiles of Galaxies
The Astrophysical JournalObserved and simulated galaxies exhibit a significant variation in their velocity dispersion profiles. We examine the inner and outer slopes of stellar velocity dispersion profiles using integral field spectroscopy data from two surveys, SAMI (for z < 0 ...
San Han +10 more
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