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Related papers: Emerging angular momentum physics from kinematic s…

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We investigate environmental effects on galaxy spin using the recent public data of MaNGA integral field spectroscopic survey containing ~2800 galaxies. We measure the spin parameter of 1830 galaxies through the analysis of two-dimensional…

Astrophysics of Galaxies · Physics 2018-04-04 Jong Chul Lee , Ho Seong Hwang , Haeun Chung

As available data sets grow in size and complexity, advanced visualization tools enabling their exploration and analysis become more important. In modern astronomy, integral field spectroscopic galaxy surveys are a clear example of…

This work presents a study of galactic outflows driven by stellar feedback. We extract main sequence disc galaxies with stellar mass $10^9\le$ M$_{\star}/$M$_{\odot} \le 5.7\times10^{10}$ at redshift $z=0$ from the highest resolution…

We investigate the relationship between the baryonic angular momentum and mass for a sample of 36 isolated disc galaxies with resolved HI kinematics and infrared WISE photometry drawn from -- and representative in terms of morphologies,…

Astrophysics of Galaxies · Physics 2023-12-29 A. Sorgho , L. Verdes-Montenegro , K. M. Hess , M. G. Jones , T. H. Jarrett , S. Sanchez-Expósito , J. Garrido

We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey to understand the link between properties of the…

Using the Horizon-AGN simulation we find a mass dependent spin orientation trend for galaxies: the spin of low-mass, rotation-dominated, blue, star-forming galaxies are preferentially aligned with their closest filament, whereas high-mass,…

Astrophysics of Galaxies · Physics 2017-02-15 charlotte Welker , Yohan Dubois , Julien Devriendt , Christophe Pichon , Sebastien Peirani

We take advantage of the first data from the Sydney-AAO Multi-object Integral field (SAMI) Galaxy Survey to investigate the relation between the kinematics of gas and stars, and stellar mass in a comprehensive sample of nearby galaxies. We…

Our new formulation of the Spherical Collapse Model (SCM-L) takes into account the presence of angular momentum associated with the motion of galaxy groups infalling towards the centre of galaxy clusters. The angular momentum is responsible…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-30 Guido Cupani , Marino Mezzetti , Fabio Mardirossian

We present new measurements of the coherent motion of galaxies based on observations of the large-scale redshift-space distortions seen in the two-dimensional two-point correlation function of Luminous Red Galaxies in Data Release Seven of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Yong-Seon Song , Cristiano G. Sabiu , Issha Kayo , Robert C. Nichol

We determine the character of orbits of stars moving in the meridional plane $(R,z)$ of an axially symmetric time-independent disk galaxy model with a spherical central nucleus. In particular, we try to reveal the influence of the value of…

Astrophysics of Galaxies · Physics 2017-09-28 Euaggelos E. Zotos

Even over relatively recent epochs, galaxies have evolved significantly in their location in the mass-metallicity plane, which must be telling us something about the latter stages of galaxy evolution. In this paper, we analyse data from the…

Astrophysics of Galaxies · Physics 2023-10-31 Shuang Zhou , Alfonso Aragón-Salamanca , Michael Merrifield , V. M. Sampaio

The existence of a kinematic morphology-density relation remains uncertain, and instead stellar mass appears the more dominant driver of galaxy kinematics. We investigate the dependence of the stellar spin parameter proxy $\lambda_{R_e}$ on…

Non-circular (NC) motions represent the imprints of non-axisymmetric structures in galaxies, providing opportunities to study the physical properties of gas departing from circular rotation. In this work, we have conducted a systematic…

Astrophysics of Galaxies · Physics 2024-10-31 Carlos Lopez-Coba , Lihwai Lin , Justus Neumann , Matthew A. Bershady

[Abridged] We study the angular-momentum profiles of a statistical sample of halos drawn from a high-resolution N-body simulation of the LCDM cosmology. We find that the cumulative mass distribution of specific angular momentum, j, in a…

We search for correlations between the spin in pairs of spiral galaxies, to study if the angular momentum gain for each galaxy was the result of tidal torques imprint by the same tidal field. To perform our study we made use of a sample of…

Astrophysics of Galaxies · Physics 2015-05-13 B. Cervantes-Sodi , X. Hernandez , Changbom Park

We present here a brief summary of the currenly on-going IFU surveys of galaxies in the Local Universe, describing their main characteristics, including their sample selections, instrumental setups, wavelength ranges, and area of the…

Astrophysics of Galaxies · Physics 2015-06-23 S. F. Sanchez , the CALIFA collaboration

The standard picture for the formation of disk galaxies has come to face a number of problems related to angular momentum. Numerical simulations produce disks that are too small, and analytical models predict too much low angular momentum…

Astrophysics · Physics 2007-05-23 Frank C. van den Bosch

We examine the kinematic morphology of early-type galaxies (ETGs) in eight galaxy clusters in the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The clusters cover a mass range of 14.2<log(M_200/M_odot)<15.2 and…

A Monte Carlo simulation of mergers in clusters of galaxies is carried out. An ``explosive'' character of the merging process (an analog of phase transition), suggested earlier by Cavaliere et al. (1991), Kontorovich et al. (1992), is…

Astrophysics · Physics 2007-05-23 D. S. Krivitsky , V. M. Kontorovich

The evolution and distribution of the angular momentum of dark matter (DM) halos have been discussed in several studies over the past decades. In particular, the idea arose that angular momentum conservation should allow to infer the total…

Astrophysics of Galaxies · Physics 2015-10-14 A. F. Teklu , R. -S. Remus , K. Dolag , A. M. Beck , A. Burkert , A. S. Schmidt , F. Schulze , L. K. Steinborn