Results 41 to 50 of about 452,450 (226)

Minimizing the stochasticity of halos in large-scale structure surveys [PDF]

, 2010
In recent work (Seljak, Hamaus and Desjacques 2009) it was found that weighting central halo galaxies by halo mass can significantly suppress their stochasticity relative to the dark matter, well below the Poisson model expectation.
N. Gehrels, N. Ross, Nico Hamaus, P. J. E. Peebles, R. W. Hockney, Robert E. Smith, Tobias Baldauf, Uroš Seljak, Vincent Desjacques, W. H. Press   +9 more
core   +1 more source

#WMHD Talks: Analyses of Mental Health Conversations Among Indonesian Community on Twitter

Gadjah Mada Journal of Psychology
One of the right moments to comprehend people’s understanding of mental health topics is through World Mental Health Day (WMHD). This study aimed to explore themes related to mental health that are the conversation topics on Twitter as social reactions ...
Syurawasti Muhiddin, Griselda Maria Ancela Wodong, Afga Yudistikhar, Azmul Fuady Idham, Audrey Alya Vanessa, Patricia Cecilia Soharto   +5 more
doaj   +1 more source

The Immitigable Nature of Assembly Bias: The Impact of Halo Definition on Assembly Bias

, 2017
Dark matter halo clustering depends not only on halo mass, but also on other properties such as concentration and shape. This phenomenon is known broadly as assembly bias.
Bosch, Frank C. van den, Campbell, Duncan, Diemer, Benedikt, Lange, Johannes U., Mao, Yao-Yuan, Purcell, Chris W., Villarreal, Antonio S., Wang, Kuan, Zentner, Andrew R.   +8 more
core   +1 more source

The mass of a halo [PDF]

Astronomy & Astrophysics, 2001
6 pages,to appear in A& ...
openaire   +3 more sources

Mass Models for Spiral Galaxies from 2-D Velocity Maps

, 2004
We model the mass distributions of 40 high surface brightness spiral galaxies inside their optical radii, deriving parameters of mass models by matching the predicted velocities to observed velocity maps.
Andersen D. R., Arimoto N., Arthur Kosowsky, Bosma A., Bottema R., Corradi R. L. M., de Jong R. S., Eric I. Barnes, J. A. Sellwood, Sofue Y.   +9 more
core   +2 more sources

Assembly of the outer Galactic stellar halo in the hierarchical model

, 2010
We provide a set of numerical N-body simulations for studying the formation of the outer Milky Ways's stellar halo through accretion events. After simulating minor mergers of prograde and retrograde orbiting satellite halo with a Dark Matter main halo ...
Adelman-McCarthy, Belokurov, Binney, Boylan-Kolchin, Bullock, Chiba, Curir, Grillmair, Huang, Miceli, Moore, Navarro, Press, White, Yanny, Zolotov   +15 more
core   +1 more source

Galaxy clustering in the NEWFIRM Medium Band Survey: the relationship between stellar mass and dark matter halo mass at 1 < z < 2 [PDF]

, 2010
We present an analysis of the clustering of galaxies as a function of their stellar mass at 1 < z < 2 using data from the NEWFIRM Medium Band Survey (NMBS). The precise photometric redshifts and stellar masses that the NMBS produces allows us to define a
Abazajian, Abbas, Adam Muzzin, Adelberger, Adelberger, Auger, Barmby, Baugh, Behroozi, Berlind, Bielby, Blanc, Blanton, Brammer, Brammer, Britt F. Lundgren, Brown, Brown, Budavári, Calzetti, Coil, Coil, Coil, Conroy, Conroy, Conroy, Conroy, Daddi, Danilo Marchesini, David A. Wake, Davis, Eisenstein, Fall, Gabriel Brammer, Guo, Hamana, Hayashi, Infante, Ivo Labbé, Jing, Katherine E. Whitaker, Kong, Kong, Kravtsov, Kriek, Kriek, Labbé, Lee, Lee, Ma, Marchesini, Marijn Franx, Mariska Kriek, McCracken, Moster, Muzzin, Ouchi, Pieter G. van Dokkum, Pérez-González, Quadri, Quadri, Ryan Quadri, Sanders, Scoccimarro, Scoville, Tinker, Tinker, Tinker, van der Wel, van Dokkum, Wetzel, Whitaker, Whitaker, White, White, Yan, Yang, York, Zehavi, Zehavi, Zehavi, Zehavi, Zheng, Zheng   +83 more
core   +2 more sources

Preliminary Assessment of Quantitative Phase Analysis from Focal Construct Tomography

NDT
New methods for real-time materials phase identification based upon focal construct tomography (FCT) have been examined. Such quantitative assessment has significant potential in sectors where in-line analysis is required, including screening within ...
Varsha Samuel, Daniel Spence, Liam Farmer, Simon Godber, Keith Rogers, Anthony Dicken   +5 more
doaj   +1 more source

Implications of Kappa Suprathermal Halo of the Solar Wind Electrons

Frontiers in Astronomy and Space Sciences, 2022
The electron velocity distributions measured in-situ in space plasmas reveal two central populations, a low-energy and highly dense (quasi-)thermal core, and a more diffuse but hotter suprathermal halo. Even if the core contributes much more to the total
Viviane Pierrard, Viviane Pierrard, Marian Lazar, Marian Lazar, Stepan Stverak, Stepan Stverak   +5 more
doaj   +1 more source

How are galaxies assigned to halos? Searching for assembly bias in the SDSS galaxy clustering

, 2018
Clustering of dark matter halos has been shown to depend on halo properties beyond mass such as halo concentration, a phenomenon referred to as halo assembly bias.
Hahn, ChangHoon, Vakili, Mohammadjavad
core   +1 more source