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An accurate knowledge of the dark matter distribution in the Milky Way is of crucial importance for galaxy formation studies and current searches for particle dark matter. In this paper we set new dynamical constraints on the Galactic dark…

Astrophysics of Galaxies · Physics 2015-12-03 Miguel Pato , Fabio Iocco , Gianfranco Bertone

We introduce a mass dependent density profile to describe the distribution of dark matter within galaxies, which takes into account the stellar-to-halo mass dependence of the response of dark matter to baryonic processes. The study is based…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Arianna Di Cintio , Chris B. Brook , Aaron A. Dutton , Andrea V. Macciò , Greg S. Stinson , Alexander Knebe

We derive the mass model of the Milky Way (MW) using a cored dark matter (DM) halo profile and recent data. The method used consists in fitting a spherically symmetric model of the Galaxy with a Burkert DM halo profile to available data: MW…

Astrophysics of Galaxies · Physics 2015-06-15 Fabrizio Nesti , Paolo Salucci

The rotation curve of the Milky Way is commonly used to estimate the local dark matter density $\rho_{{\rm DM},\odot}$. However, the estimates are subject to the choice of the distribution of baryons needed in this type of studies. In this…

Astrophysics of Galaxies · Physics 2019-10-16 P. F. de Salas , K. Malhan , K. Freese , K. Hattori , M. Valluri

We propose a complementary and fast approach to study galaxy rotation curves directly from the sample data, instead of individual fits. With this approach, some relevant tests can be done analytically. It is based on a dimensionless…

Astrophysics of Galaxies · Physics 2023-04-26 Davi C. Rodrigues , Alejandro Hernandez-Arboleda , Aneta Wojnar

We develop and apply new techniques in order to uncover galaxy rotation curves (RC) systematics. Considering that an ideal dark matter (DM) profile should yield RCs that have no bias towards any particular radius, we find that the Burkert…

Astrophysics of Galaxies · Physics 2017-07-07 Davi C. Rodrigues , Antonino del Popolo , Valerio Marra , Paulo L. C. de Oliveira

In this paper, we construct the circular velocity curve of the Milky Way out to $\sim 30$ kpc, providing an updated model of the dark matter density profile. We derive precise parallaxes for 120,309 stars with a data-driven model, using…

Astrophysics of Galaxies · Physics 2023-05-30 Xiaowei Ou , Anna-Christina Eilers , Lina Necib , Anna Frebel

Mass models of a sample of 171 low- and high-surface brightness galaxies are presented in the context of the cold dark matter (CDM) theory using the NFW dark matter halo density distribution to extract a new concentration-viral mass…

Astrophysics of Galaxies · Physics 2018-03-21 Hosein Haghi , Aziz Khodadadi , Amir Ghari , Akram Hasani Zonoozi , Pavel Kroupa

We develop a novel Bayesian methodology aimed at reliably and precisely inferring the distribution of dark matter within the Milky Way using rotation curve data. We identify a subset of the available rotation curve tracers that are mutually…

Astrophysics of Galaxies · Physics 2019-09-25 Ekaterina V. Karukes , Maria Benito , Fabio Iocco , Roberto Trotta , Alex Geringer-Sameth

We use recent very extended HI kinematics (out to 48 kpc) along with previous H$\alpha$ kinematics of the spiral galaxy NGC 3198 in order to derive its distribution of dark matter (DM). First, we used a chi-square method to model the…

Astrophysics of Galaxies · Physics 2015-05-27 E. V. Karukes , P. Salucci , G. Gentile

Aims. We present an analysis of 37 high-quality extended rotation curves that highlights the existence of a new discrepancy (or a new aspect of an old discrepancy) between the density profiles predicted by the Lambda Cold Dark Matter…

Astrophysics · Physics 2008-11-26 Gianfranco Gentile , Chiara Tonini , Paolo Salucci

We investigate the rotation curve of the Milky Way using a multi-component mass model including a stellar disk, a gaseous disk, a bulge/bar component, and a dark-matter halo. The stellar and gas contributions are calibrated using recent…

Astrophysics of Galaxies · Physics 2026-03-17 Zi Liu

Discoveries of extended rotation curves have suggested the presence of dark matter in spiral galaxy haloes. It has led to many studies that estimated the galaxy total mass, mostly by using the Navarro Frenk and White (NFW) density profile.…

Astrophysics of Galaxies · Physics 2021-10-13 Yongjun Jiao , Francois Hammer , Jianling Wang , Yanbin Yang

We present the 21-cm rotation curve of the nearby galaxy M33 out to a galactocentric distance of 16 kpc (13 disk scale-lengths). The rotation curve keeps rising out to the last measured point and implies a dark halo mass larger than 5…

Astrophysics · Physics 2009-10-31 Edvige Corbelli , Paolo Salucci

In this work we characterize the distribution of Dark Matter (DM) in the Milky Way (MW), and its uncertainties, adopting the well known "Rotation Curve" method. We perform a full marginalization over the uncertainties of the Galactic…

Astrophysics of Galaxies · Physics 2019-06-12 Maria Benito , Alessandro Cuoco , Fabio Iocco

We investigate the dark matter profile of the Milky Way using the observed rotation curve data out to 100 kpc. The baryonic matter of the Milky Way is divided into bulge, disk and gas components, and each component is modelled using various…

Astrophysics of Galaxies · Physics 2019-08-19 Hai-Nan Lin , Xin Li

We map the neutral atomic gas content of M33 using high resolution VLA and GBT observations and fit a tilted ring model to determine the orientation of the extended gaseous disk and its rotation curve. The disk of M33 warps from 8 kpc…

Astrophysics of Galaxies · Physics 2015-06-22 Edvige Corbelli , David Thilker , Stefano Zibetti , Carlo Giovanardi , Paolo Salucci

The radial mass distribution of dark matter haloes is investigated within the framework of the spherical infall model. We present a new formulation of spherical collapse including non-radial motions, and compare the analytical profiles with…

Astrophysics · Physics 2009-11-10 Y. Ascasibar , G. Yepes , S. Gottloeber , V. Mueller

The rotation curve, the total mass and the gravitational potential of the Galaxy are sensitive measurements of the dark matter halo profile. In this publication cuspy and cored DM halo profiles are analysed with respect to recent…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-30 Markus Weber , Wim de Boer

We review the~current status of the~study of rotation curve (RC) of the~Milky Way, and~present a~unified RC from the~Galactic Center to the galacto-centric distance of about 100 kpc. The~RC is used to directly calculate the~distribution of…

Astrophysics of Galaxies · Physics 2020-04-30 Yoshiaki Sofue
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