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Related papers: The rotation curves shapes of late-type dwarf gala…

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R-band surface photometry is presented for 171 late-type dwarf and irregular galaxies. For a subsample of 46 galaxies B-band photometry is presented as well. We present surface brightness profiles as well as isophotal and photometric…

Astrophysics · Physics 2009-11-07 R. A. Swaters , M. Balcells

The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim that the shape…

We present a detailed study of the shape of the innermost part of the rotation curves of a sample of 29 nearby spiral galaxies, based on high angular and spectral resolution kinematic Halpha Fabry-Perot observations. In particular, we…

While galaxy rotation curves provide one of the most powerful methods for measuring dark matter profiles in the inner regions of rotation-supported galaxies, at the dwarf scale there are factors that can complicate this analysis. Given the…

We use a compilation of disc galaxy rotation curves to assess the role of the luminous component ("baryons") in the rotation curve diversity problem. As in earlier work, we find that rotation curve shape correlates with baryonic surface…

The frequently observed lopsidedness of the distribution of stars and gas in disc galaxies is still considered as a major problem in galaxy dynamics. It is even discussed as an imprint of the formation history of discs and the evolution of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 J. van Eymeren , E. Juette , C. J. Jog , Y. Stein , R. -J. Dettmar

We study how stellar rotation curves (RCs) of galaxies are correlated on average with morphology and stellar mass ($M_\mathrm{star}$) using the final release of Sloan Digital Sky Survey IV MaNGA data. We use the visually assigned $T$-types…

Astrophysics of Galaxies · Physics 2021-12-15 Yongmin Yoon , Changbom Park , Haeun Chung , Kai Zhang

We present rotation curves of 19 galaxies from THINGS, The HI Nearby Galaxy Survey. The high spatial and velocity resolution of THINGS make these the highest quality HI rotation curves available to date for a large sample of nearby…

Astrophysics · Physics 2009-11-13 W. J. G. de Blok , F. Walter , E. Brinks , C. Trachternach , S-H. Oh , R. C. Kennicutt

Context. The cusp-core discrepancy is one of the major problems in astrophysics. It results from comparing the observed mass distribution of galaxies with the predictions of Cold Dark Matter simulations. The latter predict a cuspy density…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 J. van Eymeren , C. Trachternach , B. S. Koribalski , R. -J. Dettmar

We present high-resolution rotation curves and mass models of 26 dwarf galaxies from LITTLE THINGS. LITTLE THINGS is a high-resolution Very Large Array HI survey for nearby dwarf galaxies in the local volume within 11 Mpc. The rotation…

We present observations and analysis of rotation curves and dark matter halo density profiles in the central regions of four nearby dwarf galaxies. This observing program has been designed to overcome some of the limitations of other…

Astrophysics · Physics 2007-05-23 Alberto D. Bolatto , Joshua D. Simon , Adam Leroy , Leo Blitz

We address the issue of accuracy in recovering density profiles from observations of rotation curves of galaxies. We ``observe'' and analyze our models in much the same way as observers do the real galaxies. We find that the tilted ring…

Astrophysics · Physics 2009-11-10 George Rhee , Octavio Valenzuela , Anatoly Klypin , Jon Holtzman , Bhasker Moorthy

We present DEIMOS multi-object spectroscopy (MOS) of 22 star-forming dwarf galaxies located in four gas-rich groups, including six newly-discovered dwarfs. Two of the galaxies are strong tidal dwarf galaxy (TDG) candidates based on our…

We present high-resolution rotation curves of a sample of 26 low surface brightness galaxies. From these curves we derive mass distributions using a variety of assumptions for the stellar mass-to-light ratio. We show that the predictions of…

Astrophysics · Physics 2008-11-26 W. J. G. de Blok , A. Bosma

We review the topic of rotation curves of spiral galaxies emphasizing the standard interpretation as evidence for the existence of dark matter halos. Galaxies other than spirals and late-type dwarfs may also possess great amounts of dark…

Astrophysics · Physics 2007-05-23 Eduardo Battaner , Estrella Florido

We examine the circular velocity profiles of galaxies in {\Lambda}CDM cosmological hydrodynamical simulations from the EAGLE and LOCAL GROUPS projects and compare them with a compilation of observed rotation curves of galaxies spanning a…

In the last 20 years, rotation curves derived from H I kinematics obtained on radio synthesis instruments were used to probe the dark matter distribution in spiral and dwarf irregular galaxies. It is shown, with the aid of the Sd galaxy NGC…

Astrophysics · Physics 2007-05-23 Sebastien Blais-Ouellette , Claude Carignan , Philippe Amram

We present first results from the KMOS Ultra-deep Rotation Velocity Survey (KURVS), aimed at studying the outer rotation curves shape and dark matter content of 22 star-forming galaxies at $z\sim1.5$. These galaxies represent `typical'…

In this paper we study long slit spectra in the region of H$\alpha$ emission line of a sample of 111 spiral galaxies with recognizable and well defined spiral morphology and with a well determined environmental status, ranging from…

Astrophysics · Physics 2009-11-07 I. Marquez , J. Masegosa , M. Moles , J. Varela , D. Bettoni , G. Galletta

We use mock interferometric HI measurements and a conventional tilted-ring modelling procedure to estimate circular velocity curves of dwarf galaxy discs from the APOSTLE suite of {\Lambda}CDM cosmological hydrodynamical simulations. The…

Astrophysics of Galaxies · Physics 2018-11-05 Kyle A. Oman , Antonino Marasco , Julio F. Navarro , Carlos S. Frenk , Joop Schaye , Alejandro Benítez-Llambay