scholarly journals Diversity of Dark Matter Density Profiles in the Galactic Dwarf Spheroidal Satellites

2020 ◽  
Vol 904 (1) ◽  
pp. 45 ◽  
Author(s):  
Kohei Hayashi ◽  
Masashi Chiba ◽  
Tomoaki Ishiyama
Keyword(s):  
Dark Matter ◽  
Matter Density ◽  
Density Profiles ◽  
Dark Matter Density

scholarly journals Isolated dwarf galaxies: from cuspy to flat dark matter density profiles and metalicity gradients

2010 ◽  
Vol 514 ◽  
pp. A47 ◽  
Author(s):  
S. Pasetto ◽  
E. K. Grebel ◽  
P. Berczik ◽  
R. Spurzem ◽  
W. Dehnen
Keyword(s):  
Dark Matter ◽  
Dwarf Galaxies ◽  
Matter Density ◽  
Density Profiles ◽  
Dark Matter Density

scholarly journals NIHAO – IV: core creation and destruction in dark matter density profiles across cosmic time

2016 ◽  
Vol 456 (4) ◽  
pp. 3542-3552 ◽  
Author(s):  
Edouard Tollet ◽  
Andrea V. Macciò ◽  
Aaron A. Dutton ◽  
Greg S. Stinson ◽  
Liang Wang ◽  
...  
Keyword(s):  
Dark Matter ◽  
Cosmic Time ◽  
Matter Density ◽  
Density Profiles ◽  
Dark Matter Density

scholarly journals On the physical origin of dark matter density profiles

2004 ◽  
Vol 352 (4) ◽  
pp. 1109-1120 ◽  
Author(s):  
Y. Ascasibar ◽  
G. Yepes ◽  
S. Gottlöber ◽  
V. Müller
Keyword(s):  
Dark Matter ◽  
Matter Density ◽  
Physical Origin ◽  
Density Profiles ◽  
Dark Matter Density

scholarly journals Dark matter density profiles: a comparison of nonextensive theory with N-body simulations

2006 ◽  
Vol 453 (1) ◽  
pp. 21-25 ◽  
Author(s):  
T. Kronberger ◽  
M. P. Leubner ◽  
E. van Kampen
Keyword(s):  
Dark Matter ◽  
Matter Density ◽  
Density Profiles ◽  
Dark Matter Density

ERRATUM: "ON THE UNIVERSALITY OF BARYONS AND DARK MATTER DENSITY PROFILES"

2010 ◽  
Vol 19 (11) ◽  
pp. 1873-1873
Author(s):  
ANTONINO DEL POPOLO ◽  
ISMAIL SAFFET YEŞILYURT
Keyword(s):  
Dark Matter ◽  
Matter Density ◽  
Density Profiles ◽  
Dark Matter Density

On the Mass Dependence of the Inner Slopes of Dark Matter Density Profiles

2014 ◽  
Vol 23 (1) ◽  
Author(s):  
A. Del Popolo
Keyword(s):  
Dark Matter ◽  
Matter Density ◽  
Mass Dependence ◽  
Analytic Model ◽  
Dark Matter Halos ◽  
Logarithmic Density ◽  
Density Profiles ◽  
Dark Matter Density

AbstractWe study through a semi-analytic model how the inner slopes of relaxed ΛCDM dark matter halos with and without baryons depend on the halo mass. We find that the inner logarithmic density slope, α ≡

scholarly journals Mass models of gas-rich void dwarf galaxies

2019 ◽  
Vol 491 (4) ◽  
pp. 4993-5014 ◽  
Author(s):  
Sushma Kurapati ◽  
Jayaram N Chengalur ◽  
Peter Kamphuis ◽  
Simon Pustilnik
Keyword(s):  
Dark Matter ◽  
Dwarf Galaxies ◽  
Matter Density ◽  
Field Analysis ◽  
Dark Matter Halo ◽  
Normal Density ◽  
Density Profiles ◽  
Dark Matter Density ◽  
Average Slope ◽  
Systematic Effects

ABSTRACT We construct mass models of eight gas rich dwarf galaxies that lie in the Lynx–Cancer void. From NFW fits to the dark matter halo profile, we find that the concentration parameters of haloes of void dwarf galaxies are similar to those of dwarf galaxies in normal density regions. We also measure the slope of the central dark matter density profiles, obtained by converting the rotation curves derived using 3D (fat) and 2D (ROTCUR) tilted ring fitting routines, into mass densities. We find that the average slope (α = −1.39 ± 0.19), obtained from 3D fitting is consistent with that expected from an NFW profile. On the other hand, the average slope measured using the 2D approach is closer to what would be expected for an isothermal profile. This suggests that systematic effects in velocity field analysis have a significant effect on the slope of the central dark matter density profiles. Given the modest number of galaxies we use for our analysis, it is important to check these results using a larger sample.

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