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Related papers: Visual morphological classification of the full Ma…

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Using high-resolution Hubble Space Telescope imaging data, we perform a visual morphological classification of $\sim 36,000$ galaxies at $z < 1$ in the DEVILS/COSMOS region. As the main goal of this study, we derive the stellar mass…

We present an automated morphological classification in 4 types (E,S0,Sab,Scd) of ~700.000 galaxies from the SDSS DR7 spectroscopic sample based on support vector machines. The main new property of the classification is that we associate to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Marc Huertas-Company , J. A. L Aguerri , M. Bernardi , S. Mei , J. Sánchez Almeida

We present a catalog of detailed visual classifications for 14034 galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4). Our sample includes nearly all spectroscopically-targeted galaxies in the redshift range 0.01<z<0.1 down…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Preethi B. Nair , Roberto G. Abraham

We study the internal gradients of stellar population properties within $1.5\;R_{\rm e}$ for a representative sample of 721 galaxies with stellar masses ranging between $10^{9}\;M_{\odot}$ to $10^{11.5}\;M_{\odot}$ from the SDSS-IV MaNGA…

We study the link between the kinematic-morphology of galaxies, as inferred from integral-field stellar kinematics, and their relation between mass and star formation rate (SFR). Our sample consists of $\sim 3200$ galaxies with…

Astrophysics of Galaxies · Physics 2020-05-15 Bitao Wang , Michele Cappellari , Yingjie Peng , Mark Graham

Early-type dwarf galaxies, once believed to be simple systems, have recently been shown to exhibit an intriguing diversity in structure and stellar content. To analyze this further, we started the SMAKCED project, and obtained deep H-band…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 J. Janz , E. Laurikainen , T. Lisker , H. Salo , R. F. Peletier , S. -M. Niemi , M. den Brok , E. Toloba , J. Falcón-Barroso , A. Boselli , G. Hensler

We present a study of the ratio of visible mass to total mass in spiral galaxies to better understand the relative amount of dark matter present in galaxies of different masses and evolutionary stages. Using the velocities of the H-alpha…

Astrophysics of Galaxies · Physics 2024-06-24 Nitya Ravi , Kelly A. Douglass , Regina Demina

We use 3.6 $\mu$m photometry from the Spitzer Survey of Stellar Structure in Galaxies (S$^{4}$G) to trace the stellar distribution in nearby disk galaxies ($z\approx0$) with total stellar masses $10^{8.5}\lesssim…

Astrophysics of Galaxies · Physics 2016-12-07 Simón Díaz-García , Heikki Salo , Eija Laurikainen

Using 'spatially' resolved spectroscopy, we investigated the characteristics and different modes of formation of stars in elliptical galaxies. We identified an unusual population of 59 star-forming elliptical (SF-E) galaxies in SDSS-MaNGA,…

Astrophysics of Galaxies · Physics 2024-07-29 Pralay Biswas , Yogesh Wadadekar

We investigate radial gradients in the recent star formation history (SFH) using 1917 galaxies with $0.01<z<0.14$ and integral-field spectroscopy from the ongoing MaNGA survey. For each galaxy, we obtain two-dimensional maps and radial…

We describe the SDSS-IV MaNGA PyMorph Photometric (MPP-VAC) and MaNGA Deep Learning Morphology (MDLM-VAC) Value Added Catalogs. The MPP-VAC provides photometric parameters from S\'ersic and S\'ersic+Exponential fits to the 2D surface…

Astrophysics of Galaxies · Physics 2018-12-13 J. -L. Fischer , H. Domínguez Sánchez , M. Bernardi

In this study, we investigate the morphology of galaxies in the TNG100 simulation by applying mock observation techniques and compare the results with the observational data from the Sloan Digital Sky Survey (SDSS). By employing a…

Astrophysics of Galaxies · Physics 2025-07-01 Jun-Yu Gong , Weipeng Lin , Lin Tang , Yanyao Lan

We present the results of an isophotal shape analysis of three samples of galaxies in the Coma cluster. Quantitative morphology, together with structural and photometric parameters, is given for each galaxy. Special emphasis has been placed…

Astrophysics · Physics 2007-05-23 S. Andreon , E. Davoust , R. Michard , J. -L. Nieto , P. Poulain

We investigate the redshift evolution of disk and bulge-dominated galaxies using a mass-complete sample of $\sim$14,000 galaxies from the CANDELS survey, selected with $H_{\rm mag} \leq 24$, $M_{\rm stellar} \geq 10^9\,{\rm M}_\odot$, and…

Astrophysics of Galaxies · Physics 2025-06-24 Vitor M. Sampaio , Igor Kolesnikov , Reinaldo R. de Carvalho , Ignacio Ferreras , Joseph Silk

We study the internal radial gradients of stellar population properties within $1.5\;R_{\rm e}$ and analyse the impact of galaxy environment. We use a representative sample of 721 galaxies with masses ranging between $10^{9}\;M_{\odot}$ to…

[abridged] New near-infrared surveys, using the HST, offer an unprecedented opportunity to study rest-frame optical galaxy morphologies at z>1 and to calibrate automated morphological parameters that will play a key role in classifying…

A catalogue of the morphological features for the complete Spitzer Survey of Stellar Structure in Galaxies (S$^4$G), including 2352 nearby galaxies, is presented. The measurements are made using 3.6 $\mu$m images, largely tracing the old…

Astrophysics of Galaxies · Physics 2015-10-21 M. Herrera-Endoqui , S. Díaz-García , E. Laurikainen , H. Salo

We examine morphology-separated color-mass diagrams to study the quenching of star formation in $\sim 100,000$ ($z\sim0$) Sloan Digital Sky Survey (SDSS) and $\sim 20,000$ ($z\sim1$) Cosmic Assembly Near-Infrared Deep Extragalactic Legacy…

Astrophysics of Galaxies · Physics 2020-06-29 Aritra Ghosh , C. Megan Urry , Zhengdong Wang , Kevin Schawinski , Dennis Turp , Meredith C. Powell

The morphological diversity of galaxies is a relevant probe of galaxy evolution and cosmological structure formation, but the classification of galaxies in large sky surveys is becoming a significant challenge. We use data from the…