activity
20132025
most citedThe Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

681 citations · 2.1k across the 40 of their papers we have counts for

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Showing 2018Show all

6 papers · 1 filter

astro-ph.IM2018★ 356 cited

The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library

D. S. Aguado, Romina Ahumada, Andres Almeida +230

Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years o…

astro-ph.GA2018★ 11 cited

The dynamic stage of clusters and its influence on the stellar populations of galaxies

N. R. Soares, S. B. Rembold

We investigate the stellar populations of galaxies in clusters at different dynamical stages, aiming to identify possible effects of the relaxation state of the cluster or subclust…

astro-ph.CO2018★ 64 cited

Optical Substructure and BCG Offsets of Sunyaev-Zel'dovich and X-ray Selected Galaxy Clusters

P. A. A. Lopes, M. Trevisan, T. F. Laganá +3

We used optical imaging and spectroscopic data to derive substructure estimates for local Universe () galaxy clusters from two different samples. The first was selected t…

astro-ph.GA2018★ 45 cited

The first 62 AGN observed with SDSS-IV MaNGA - II: resolved stellar populations

Nícolas Dullius Mallmann, Rogério Riffel, Thaisa Storchi-Bergmann +10

We present spatially resolved stellar population age maps, average radial profiles and gradients for the first 62 Active Galactic Nuclei (AGN) observed with SDSS-IV MaNGA to study…

astro-ph.GA2018★ 16 cited

Morphology of AGN Emission Line Regions in SDSS-IV MaNGA Survey

Zhicheng He, Ai-Lei Sun, Nadia L. Zakamska +6

Extended narrow-line regions (NLRs) around active galactic nuclei (AGN) are shaped by the distribution of gas in the host galaxy and by the geometry of the circumnuclear obscuratio…

astro-ph.GA2018★ 25 cited

Gradient Pattern Analysis Applied to Galaxy Morphology

Reinaldo. R. Rosa, Reinaldo. R. de Carvalho, Rubens. A. Sautter +6

Gradient pattern analysis (GPA) is a well-established technique for measuring gradient bilateral asymmetries of a square numerical lattice. This paper introduces an improved versio…