activity
20072023
most citedOn the oxygen and nitrogen chemical abundances and the evolution of the "green pea" galaxies

196 citations · 814 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2023★ 7 cited

A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies

A. Arroyo-Polonio, J. Iglesias-Páramo, C. Kehrig +6

Green Pea galaxies are remarkable for their intense star formation and serve as a window into the early universe. In our study, we used integral field spectroscopy to examine 24 of…

astro-ph.GA2022★ 19 cited

Spatially-resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: Evidence for recent accretion of metal-poor gas

M. G. del Valle-Espinosa, R. Sanchez-Janssen, R. Amorin +4

Nearby metal-poor starburst dwarf galaxies present a unique opportunity to probe the physics of high-density star formation with a detail and sensitivity unmatched by any observati…

astro-ph.GA2022★ 6 cited

Spatially-resolved properties of the ionized gas in the HII galaxy J084220+115000

D. Fernández-Arenas, E. Carrasco, R. Terlevich +20

We present a spatially resolved spectroscopic study for the metal poor HII galaxy J084220+115000 using MEGARA Integral Field Unit observations at the Gran Telescopio Canarias. We e…

astro-ph.GA2022★ 13 cited

Characterisation of the stellar content of SDSS EELGs through self-consistent spectral modelling

Iris Breda, José M. Vilchez, Polychronis Papaderos +6

Extreme emission line galaxies (EELGs) are a notable galaxy genus, ultimately being regarded as local prototypes of early galaxies at the cosmic noon. Robust characterisation of th…

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.GA2020★ 43 cited

Chemodynamics of Green Pea galaxies -- I. Outflows and turbulence driving the escape of ionising photons and chemical enrichment

L. Hogarth, R. Amorín, J. M. Vílchez +6

We investigate the ionised gas kinematics, physical properties and chemical abundances of SDSS142947, a Green Pea galaxy at redshift z0.17 with strong, double-peak Ly e…

astro-ph.GA2016★ 28 cited

The Kennicutt-Schmidt Relation in Extremely Metal-Poor Dwarf Galaxies

M. E. Filho, J. Sánchez Almeida, R. Amorín +3

The Kennicutt-Schmidt (KS) relation between the gas mass and star formation rate (SFR) describes the star formation regulation in disk galaxies. It is a function of gas metallicity…

astro-ph.GA2015★ 98 cited

Localized starbursts in dwarf galaxies produced by impact of low metallicity cosmic gas clouds

J. Sanchez Almeida, B. G. Elmegreen, C. Munoz-Tunon +7

Models of galaxy formation predict that gas accretion from the cosmic web is a primary driver of star formation over cosmic history. Except in very dense environments where galaxy…

astro-ph.CO2013★ 47 cited

Extremely Metal-Poor Galaxies: The HI Content

M. E. Filho, B. Winkel, Sánchez Almeida +12

Extremely metal-poor (XMP) galaxies are chemically, and possibly dynamically, primordial objects in the local Universe. Our objective is to characterize the HI content of the XMP g…

astro-ph.CO2013★ 16 cited

A Virtual Observatory Census to Address Dwarfs Origins. AVOCADO - I. Science goals, sample selection and analysis tools

R. Sánchez-Janssen, R. Amorín, M. García-Vargas +9

(Abridged) AVOCADO aims at establishing firm conclusions on the formation and evolution of dwarf galaxies by constructing and analysing a homogeneous, multiwavelength dataset for a…

astro-ph.CO2012★ 68 cited

Complex gas kinematics in compact, rapidly assembling star-forming galaxies

Ricardo Amorín, José M. Vílchez, Guillermo Hägele +3

Deep, high resolution spectroscopic observations have been obtained for six compact, strongly star-forming galaxies at redshift z~0.1-0.3, most of them also known as Green Peas. Re…

astro-ph.CO2012★ 126 cited

The star formation history and metal content of the "Green Peas". New detailed GTC-OSIRIS spectrophotometry of three galaxies

Ricardo Amorín, E. Pérez-Montero, J. M. Vílchez +1

We present deep broad-band imaging and long-slit spectroscopy of three compact, low-mass starburst galaxies at redshift z\sim0.2-0.3, also referred to as Green Peas (GP). We measur…

astro-ph.CO2010★ 196 cited

On the oxygen and nitrogen chemical abundances and the evolution of the "green pea" galaxies

Ricardo O. Amorín, E. Pérez-Montero, J. M. Vílchez

We have investigated the oxygen and nitrogen chemical abundances in extremely compact star-forming galaxies with redshifts between 0.11-0.35, popularly referred to as "green…

astro-ph.CO2009★ 26 cited

Search for blue compact dwarf galaxies during quiescence II: metallicities of gas and stars, ages, and star-formation rates

J. Sanchez Almeida, J. A. L. Aguerri, C. Munoz-Tunon +1

We examine the metallicity and age of a large set of SDSS/DR6 galaxies that may be Blue Compact Dwarf (BCD) galaxies during quiescence (QBCDs).The individual spectra are first clas…

astro-ph2008★ 47 cited

Search for Blue Compact Dwarf Galaxies During Quiescence

J. Sanchez Almeida, C. Munoz-Tunon, R. Amorin +3

Blue Compact Dwarf (BCD) galaxies are metal poor systems going through a major starburst that cannot last for long. We have identified galaxies which may be BCDs during quiescence…

astro-ph2007★ 41 cited

The stellar host in blue compact dwarf galaxies: the need for a two-dimensional fit

Ricardo O. Amorin, Casiana Munoz-Tunon, J. Alfonso L. Aguerri +2

The structural properties of the low surface brightness stellar host in blue compact dwarf galaxies are often studied by fitting r^{1/n} models to the outer regions of their radial…