output
20152020
most citedThe CALIFA survey across the Hubble sequence: Spatially resolved stellar population properties in galaxies

311 citations

24 papers

astro-ph.GA2020★ 10 cited

Mapping the ionized gas of the metal-poor HII galaxy PHL 293B with MEGARA

C. Kehrig, J. Iglesias-Paramo, J. M. Vilchez +14

Here we report the first spatially resolved spectroscopic study for the galaxy PHL293B using the high-resolution GTC/MEGARA IFU. PHL293B is a local, extremely metal-poor, high ioni…

astro-ph.GA2020★ 16 cited

MEGARA-IFU detection of extended HeII4686 nebular emission in the central region of NGC1569 and its ionization budget

Y. D. Mayya, E. Carrasco, V. M. A. Gomez-Gonzalez +21

We here report the detection of extended HeII4686 nebular emission in the central region of NGC1569 using the integral field spectrograph MEGARA at the 10.4-m Gran Telescopio Canar…

astro-ph.GA2020★ 33 cited

Properties of five z~0.3-0.4 confirmed LyC leakers: VLT/XShooter observations

N. G. Guseva, Y. I. Izotov, D. Schaerer +7

Using new VLT/XShooter spectral observations we analyse the physical properties of five z~0.3-0.4 confirmed LyC leakers. Strong resonant MgII 2796,2803 emission lines (I(2796,2803)…

astro-ph.SR2020★ 10 cited

MEGARA-GTC Stellar Spectral Library (I)

M. L. García-Vargas, E. Carrasco, M. Mollá +11

MEGARA (Multi Espectr{ó}grafo en GTC de Alta Resoluci{ó}n para Astronom{\'ı}a) is an optical (3650~--~9750Å), fibre-fed, medium-high spectral resolution (R = 6000, 12000, 20000) in…

astro-ph.GA2019

Spatially-resolved analysis of neutral winds, stars and ionized gas kinematics with MEGARA/GTC: new insights on the nearby galaxy UGC 10205

C. Catalán-Torrecilla, Á. Castillo-Morales, A. Gil de Paz +15

We present a comprehensive analysis of the multi-phase structure of the interstellar medium (ISM) and the stellar kinematics in the edge-on nearby galaxy UGC 10205 using integral f…

astro-ph.GA2019★ 21 cited

Searching for intergalactic star forming regions in Stephan's Quintet with SITELLE. I. Ionised gas structures and kinematics

S. Duarte Puertas, J. Iglesias-Páramo, J. M. Vilchez +3

Stephan's Quintet (SQ), the prototypical compact group of galaxies in the local Universe, has been observed with the imaging Fourier transform spectrometer SITELLE, attached to the…

astro-ph.GA2019★ 64 cited

SIGNALS: I. Survey Description

L. Rousseau-Nepton, R. P. Martin, C. Robert +60

SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing program designed to investigate massive star formation and HII regions in a sam…

astro-ph.GA2018★ 18 cited

High-resolution MEGARA IFU spectroscopy and structural analysis of a fast-rotating, disky bulge in NGC 7025

Bililign T. Dullo, Mario Chamorro-Cazorla, Armando Gil de Paz +12

Disky bulges in spiral galaxies are commonly thought to form out of disk materials (mainly) via bar driven secular processes, they are structurally and dynamically distinct from `c…

q-bio.PE2018★ 21 cited

Eco-evolutionary Model of Rapid Phenotypic Diversification in Species-Rich Communities

Paula Villa Martín, Jorge Hidalgo, Rafael Rubio de Casas +1

Evolutionary and ecosystem dynamics are often treated as different processes --operating at separate timescales-- even if evidence reveals that rapid evolutionary changes can feed…

astro-ph.GA2018★ 10 cited

Unveiling the environment and faint features of the isolated galaxy CIG 96 with deep optical and HI observations

P. Ramirez-Moreta, L. Verdes-Montenegro, J. Blasco-Herrera +21

Asymmetries in HI in galaxies are often caused by the interaction with close companions, making isolated galaxies an ideal framework to study secular evolution. The AMIGA project h…

astro-ph.GA2018★ 67 cited

The extended HeII4686 emission in the extremely metal-poor galaxy SBS0335-052E seen with MUSE

C. Kehrig, J. M. Vilchez, M. A. Guerrero +4

SBS0335-052E, one of the most metal-poor (Z ~ 3-4% Z) HeII-emitter starbursts known in the nearby universe, is studied using optical VLT/MUSE spectroscopic and Chandra X-…

astro-ph.GA2017★ 11 cited

The Wolf-Rayet star population in the dwarf galaxy NGC 625

Ana Monreal-Ibero, Jeremy R. Walsh, Jorge Iglesias-Paramo +4

ABRIGED: Quantifying the number, type and distribution of W-R stars is a key component in the context of galaxy evolution, since they put constraints on the age of the star formati…

astro-ph.GA2016★ 64 cited

Aperture-free star formation rate of SDSS star-forming galaxies

S. Duarte Puertas, J. M. Vilchez, J. Iglesias-Paramo +3

Large area surveys with a high number of galaxies observed have undoubtedly marked a milestone in the understanding of several properties of galaxies, such as star-formation histor…

astro-ph.GA2016★ 30 cited

Aperture effects on the oxygen abundance determinations from CALIFA data

J. Iglesias-Páramo, J. M. Vílchez, F. F. Rosales-Ortega +23

This paper aims at providing aperture corrections for emission lines in a sample of spiral galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA) database. In part…

astro-ph.GA2016★ 51 cited

Spatially resolved integral field spectroscopy of the ionized gas in IZw18

C. Kehrig, J. M. Vilchez, E. Perez-Montero +6

We present a detailed 2D study of the ionized ISM of IZw18 using new PMAS-IFU optical observations. IZw18 is a high-ionization galaxy which is among the most metal-poor starbursts…

astro-ph.GA2015★ 118 cited

The warm ionized gas in CALIFA early-type galaxies: 2D emission-line patterns and kinematics for 32 galaxies

J. M. Gomes, P. Papaderos, C. Kehrig +23

The morphological, spectroscopic and kinematical properties of the warm interstellar medium (wim) in early-type galaxies (ETGs) hold key observational constraints to nuclear activi…

astro-ph.GA2015★ 32 cited

Spectroscopic aperture biases in inside-out evolving early-type galaxies from CALIFA

J. M. Gomes, P. Papaderos, J. M. Vílchez +21

Integral field spectroscopy studies based on CALIFA data have recently revealed the presence of ongoing low-level star formation (SF) in the periphery of ~10% of local early-type g…

astro-ph.GA2015★ 46 cited

Spiral-like star-forming patterns in CALIFA early-type galaxies

J. M. Gomes, P. Papaderos, J. M. Vílchez +21

Based on a combined analysis of SDSS imaging and CALIFA integral field spectroscopy data, we report on the detection of faint (24 < μ mag/arcsec < 26) star-forming spiral-a…

astro-ph.GA2015★ 53 cited

Outer-disk reddening and gas-phase metallicities: The CALIFA connection

R. A. Marino, A. Gil de Paz, S. F. Sánchez +27

We study, for the first time in a statistically significant and well-defined sample, the relation between the outer-disk ionized-gas metallicity gradients and the presence of break…

astro-ph.GA2015★ 1 cited

PopIII-star siblings in IZw18 and WRs in metal-poor galaxies unveiled from integral field spectroscopy

Carolina Kehrig, Jose M. Vilchez, Enrique Perez-Montero +5

Here we highlight our recent results from the IFS study of Mrk178, the closest metal-poor WR galaxy, and of IZw18, the most metal-poor star-forming galaxy known in the local Univer…

astro-ph.GA2015★ 311 cited

The CALIFA survey across the Hubble sequence: Spatially resolved stellar population properties in galaxies

R. M. González Delgado, R. García-Benito, E. Pérez +32

This paper characterizes the radial structure of stellar population properties of galaxies in the nearby universe, based on 300 galaxies from the CALIFA survey. The sample covers a…

astro-ph.GA2015★ 121 cited

Tracing kinematic (mis)alignments in CALIFA merging galaxies: Stellar and ionized gas kinematic orientations at every merger stage

J. K. Barrera-Ballesteros, B. García-Lorenzo, J. Falcón-Barroso +27

We present spatially resolved stellar and/or ionized gas kinematic properties for a sample of 103 interacting galaxies, tracing all merger stages: close companions, pairs with morp…

astro-ph.GA2015★ 26 cited

Fossil group origins V. The dependence of the luminosity function on the magnitude gap

S. Zarattini, J. A. L Aguerri, R. Sanchez-Janssen +11

In nature we observe galaxy aggregations that span a wide range of magnitude gaps between the two first-ranked galaxies of a system (). There are systems with gaps close t…

astro-ph.GA2015★ 100 cited

The extended HeII4686-emitting region in IZw18 unveiled: clues for peculiar ionizing sources

C. Kehrig, J. M. Vilchez, E. Perez-Montero +5

New integral field spectroscopy has been obtained for IZw18, the nearby lowest-metallicity galaxy considered our best local analog of systems forming at high-z. Here we report the…