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

Abstract

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 these galaxies in the optical spectrum. We focused on the interaction between their ionized interstellar medium and the star formation processes within them. Our research generated spatial maps of emission lines and other properties like ionization structures and chemical conditions. These maps showed that areas with higher levels of excitation are usually located where starbursts are occurring. Continuum maps displayed more intricate structures than emission line maps and hinted at low brightness ionized gas in the galaxies' outer regions. We also analyzed integrated spectra from selected areas within these galaxies to derive physical properties like electron densities and temperatures. In some galaxies, we were able to determine metallicity levels. Our observations revealed the presence of high-ionizing lines in three galaxies, two of which had extremely high rates of star formation. Our findings provide valuable insights into the properties and star-forming processes in Green Pea galaxies, contributing to our broader understanding of galactic evolution in the early universe.

References in corpus (66)

• The Global Schmidt Law in Star Forming Galaxies
• The Host Galaxies of AGN
• Theoretical Modeling of Starburst Galaxies
• The Host Galaxies and Classification of Active Galactic Nuclei
• [O III]/[N II] as an Abundance Indicator at High Redshift
• Galaxy Zoo : Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
• The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• The Star-formation Mass Sequence out to z=2.5
• The MUSE second-generation VLT instrument
• PyNeb: a new tool for analyzing emission lines. I. Code description and validation of results
• The star formation history of mass-selected galaxies in the COSMOS field
• Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies
• Two Remarkably Luminous Galaxy Candidates at $z\approx 10-12$ Revealed by JWST
• The Data Processing Pipeline for the MUSE Instrument
• Detection of high Lyman continuum leakage from four low-redshift compact star-forming galaxies
• Identification and properties of intense star-forming galaxies at redshifts z>10
• The Origin and Optical Depth of Ionizing Radiation in the "Green Pea" Galaxies
• Green Pea Galaxies and cohorts: Luminous Compact Emission-Line Galaxies in the Sloan Digital Sky Survey
• Deriving model-based T${}_e$-consistent chemical abundances in ionised gaseous nebulae
• On the oxygen and nitrogen chemical abundances and the evolution of the "green pea" galaxies
• Ly$\alpha$ profile, dust, and prediction of Ly$\alpha$ escape fraction in Green Pea Galaxies
• Ultraviolet spectra of extreme nearby star-forming regions --- approaching a local reference sample for JWST
• The Optical Depth of H II Regions in the Magellanic Clouds
• First look with JWST spectroscopy: $z\sim 8$ galaxies resemble local analogues
• The evolving SFR-M_star relation and sSFR since z~5 from the VUDS spectroscopic survey
• Nitrogen and oxygen abundances in the Local Universe
• Ionized gaseous nebulae chemical abundance determination using the direct method
• Nebular emission and the Lyman continuum photon escape fraction in CALIFA early-type galaxies
• The COS Legacy Archive Spectroscopy SurveY (CLASSY) Treasury Atlas
• New Insights into the Evolution of Massive Stars and Their Effects on Our Understanding of Early Galaxies
• Green Pea Galaxies Reveal Secrets of Ly$\alpha$ Escape
• The Nitrogen-to-Oxygen evolution in galaxies: the role of the star formation rate
• Effects of episodic gas infall on the chemical abundances in galaxies
• The extended HeII4686-emitting region in IZw18 unveiled: clues for peculiar ionizing sources
• Finding Peas in the Early Universe with JWST
• Linking Ly-alpha and Low-Ionization Transitions at Low Optical Depth
• Photoelectric Emission from Dust Grains Exposed to Extreme Ultraviolet and X-ray Radiation
• A Close Relationship between Lyman Alpha and Mg II in Green Pea Galaxies
• The Limited Impact of Outflows: Integral-Field Spectroscopy of 20 Local AGNs
• A Sample of Massive Black Holes in Dwarf Galaxies Detected via [Fe X] Coronal Line Emission: Active Galactic Nuclei and/or Tidal Disruption Events
• The interplay between ionized gas and massive stars in the HII galaxy IIZw70: integral field spectroscopy with PMAS
• Complex gas kinematics in compact, rapidly assembling star-forming galaxies
• Kinematics and Optical Depth in the Green Peas: Suppressed Superwinds in Candidate LyC Emitters
• JWST/NIRCam Observations of Stars and HII Regions in $z\simeq 6-8$ Galaxies: Properties of Star Forming Complexes on 150 pc Scales
• Spatially resolved integral field spectroscopy of the ionized gas in IZw18
• Extreme Emission-Line Galaxies in SDSS. I. Empirical and model-based calibrations of chemical abundances
• The Low-redshift Lyman-continuum Survey: [S II]-deficiency and the leakage of ionizing radiation
• Probing black hole accretion tracks, scaling relations and radiative efficiencies from stacked X-ray active galactic nuclei
• Neutral Gas Properties and Ly$\alpha$ Escape in Extreme Green Pea Galaxies
• A VLT VIMOS integral field spectroscopic study of perturbed blue compact galaxies: UM 420 and UM 462
• Mass-Metallicity and Star Formation Rate in Galaxies: a complex relation tuned to stellar age
• Lyman alpha and Lyman continuum emission of MgII-selected star-forming galaxies
• Mapping the starburst in Blue Compact Dwarf Galaxies. PMAS Integral Field Spectroscopy of Mrk 1418
• Ly$\alpha$ and UV Sizes of Green Pea Galaxies
• A 2D multiwavelength study of the ionized gas and stellar population in the Giant HII Region NGC 588
• MUSE Illuminates Channels for Lyman Continuum Escape in the Halo of SBS 0335-52E
• Local analogues of high-redshift star-forming galaxies: integral field spectroscopy of green peas
• Spectral Shapes of the Lya Emission from Galaxies. II. the influence of stellar properties and nebular conditions on the emergent Lya profiles
• The Importance Of Star Formation Intensity In LYα Escape From Green Pea Galaxies And Lyman Break Galaxy Analogs
• J-PLUS: Uncovering a large population of extreme [OIII] emitters in the local Universe
• Photon leaking or very hard ionizing radiation? Unveiling the nature of heII-emitters using the softness diagram
• A $\sim$15 kpc outflow cone piercing through the halo of the blue compact metal-poor galaxy SBS0335-052
• Characterisation of the stellar content of SDSS EELGs through self-consistent spectral modelling
• On the triggering of extreme starburst events in low-metallicity galaxies: a deep search for companions of Green Peas
• Mapping the ionized gas of the metal-poor HII galaxy PHL 293B with MEGARA
• SDSS-IV MaNGA: an observational evidence of density bounded region in a Lyman-$\alpha$ emitter

Cited by in corpus (4)

• Low-metallicity massive single stars with rotation. III. Source of ionization and C-IV emission in I Zw 18
• Extreme Emission-Line Galaxies in the MUSE Hubble Ultra Deep Field Survey
• The Environments of Star-Forming Galaxies Detected in the SFACT Survey: Do Mergers and Interactions Drive the Star Formation?
• J-PAS: First Identification, Physical Properties and Ionization Efficiency of Extreme Emission Line Galaxies