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Related papers: Identifying mergers using non-parametric morpholog…

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We measure the role of major and minor mergers in forming the stellar masses of galaxies over $0<z<3$ using a combination of $\sim 3.25$ deg$^{2}$ of the deepest ground based near-infrared imaging taken to date as part of the REFINE survey.…

Astrophysics of Galaxies · Physics 2022-12-07 Christopher J. Conselice , Carl J. Mundy , Leonardo Ferreira , Kenneth Duncan

Using a combination of numerical simulation and synthesized Hubble Space Telescope Wide Field Camera 2 (HST WFC2) images, we follow the detectability of morphological signatures of disk galaxy mergers at intermediate redshifts z=0.4 and…

Astrophysics · Physics 2007-05-23 Chris Mihos

We present a comprehensive analysis of galaxy close-pair fractions and major merger rates to evaluate the importance of mergers in the hierarchical growth of galaxies over cosmic time. This study focuses on the previously poorly understood…

We present results of a statistical study of the cosmic evolution of the mass dependent major-merger rate since z=1. A stellar mass limited sample of close major-merger pairs (the CPAIR sample) was selected from the archive of the COSMOS…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 C. Kevin Xu , Yinghe Zhao , N. Scoville , P. Capak , N. Drory , Y. Gao

We present an analysis of the morphological classification of 89 luminous infrared galaxies (LIRGs) from the Great Observatories All-sky LIRG Survey (GOALS) sample using non-parametric coefficients and compare their morphology as a function…

Astrophysics of Galaxies · Physics 2016-06-15 A. Psychogyios , V. Charmandaris , T. Diaz- Santos , L. Armus , S. Haan , J. Howell , E. Le Floc'h , S. M. Petty , A. S. Evans

Dwarf galaxies (M*<10^9 Msun) are key drivers of mass assembly in high mass galaxies, but relatively little is understood about the assembly of dwarf galaxies themselves. Using the \textsc{NewHorizon} cosmological simulation (40 pc spatial…

Astrophysics of Galaxies · Physics 2020-11-18 G. Martin , R. A. Jackson , S. Kaviraj , H. Choi , J. E. G. Devriendt , Y. Dubois , T. Kimm , K. Kraljic , S. Peirani , C. Pichon , M. Volonteri , S. K. Yi

We study the galaxy merger fraction and its dependence on star formation mode in the5.4 square degrees of the North Ecliptic Pole-Wide field. We select 6352 galaxies withAKARI 9{\mu}m detections, and identify mergers among them using the…

Galaxy morphology is one of the most fundamental ways to describe galaxy properties, but the morphology we observe may be affected by wavelength and spatial resolution, which may introduce systematic bias when comparing galaxies at…

Astrophysics of Galaxies · Physics 2023-07-27 Yao Yao , Jie Song , Xu Kong , Guanwen Fang , Hong-Xin Zhang , Xinkai Chen

Galaxy mergers play a critical role in galaxy evolution - altering the size, morphology, dynamics and composition of galaxies. So far, galaxy mergers have mostly been identified through visual inspection of their rest-frame optical and NIR…

Astrophysics of Galaxies · Physics 2024-06-05 I. Langan , G. Popping , M. Ginolfi , F. Gentile , F. Valentino , M. Kaasinen

We present an automatic method to identify galaxy mergers using the morphological information contained in the residual images of galaxies after the subtraction of a Sersic model. The removal of the bulk signal from the host galaxy light is…

We study the significance of mergers in the quenching of star formation in galaxies at z~1 by examining their color-mass distributions for different morphology types. We perform two-dimensional light profile fits to GOODS iz images of ~5000…

(Abriged) Our goal here is to provide merger frequencies that encompass both major and minor mergers, derived from close pair statistics. We use B-band luminosity- and mass-limited samples from an Spitzer/IRAC-selected catalogue of GOODS-S.…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-27 C. López-Sanjuan , M. Balcells , P. G. Pérez-González , G. Barro , J. Gallego , J. Zamorano

From mock Hubble Space Telescope images, we quantify non-parametric statistics of galaxy morphology, thereby predicting the emergence of relationships among stellar mass, star formation, and observed rest-frame optical structure at 1 < z <…

Slow rotator galaxies are distinct amongst galaxy populations, with simulations suggesting that a mix of minor and major mergers are responsible for their formation. A promising path to resolve outstanding questions on the type of merger…

The rest-frame far-ultraviolet (FUV) morphologies of 8 nearby interacting and starburst galaxies (Arp 269, M 82, Mrk 8, NGC 520, NGC 1068, NGC 3079, NGC 3310, NGC 7673) are compared with 54 galaxies at z ~ 1.5 and 46 galaxies at z ~ 4…

Cosmology and Nongalactic Astrophysics · Physics 2009-06-18 Sara M. Petty , Duilia F. de Mello , John S. Gallagher , Jonathan P. Gardner , Jennifer M. Lotz , C. Matt Mountain , Linda J. Smith

Precise tracking of the growth in galaxy size and the evolution of merger fractions with redshift is vital for understanding the formation history of submillimeter galaxies (SMGs). This study investigates these evolutions over a broad…

Astrophysics of Galaxies · Physics 2025-02-24 Jian Ren , F. S. Liu , Nan Li , Pinsong Zhao , Qifan Cui , Qi Song , Yubin Li , Hao Mo , Hassen M. Yesuf , Weichen Wang , Fangxia An , Xian Zhong Zheng

Using multiwavelength surveys of active galactic nuclei across a wide range of bolometric luminosities (10^{43}<L_{bol}(erg/s<5x10^{46}) and redshifts (0<z<3), we find a strong, redshift-independent correlation between the AGN luminosity…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 E. Treister , K. Schawinski , C. M. Urry , B. D. Simmons

The global 21 cm HI emission-line profile of a galaxy encodes valuable information on the spatial distribution and kinematics of the neutral atomic gas. Galaxy interactions significantly influence the HI disk and imprint observable features…

Astrophysics of Galaxies · Physics 2022-04-20 Pei Zuo , Luis C. Ho , Jing Wang , Niankun Yu , Jinyi Shangguan

The kinematic characterization of different galaxy populations is a key observational input to distinguish between different galaxy evolutionary scenarios, since it helps to determine the number ratio of rotating disks to mergers at…

Astrophysics of Galaxies · Physics 2016-06-22 Enrica Bellocchi , Santiago Arribas , Luis Colina
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