Nebular and stellar properties of a metal poor HII galaxy at z=3.36

Abstract

We have characterized the physical properties (electron temperature, density, metallicity) of the ionized gas and the ionizing population (age, metallicity, presence of WR stars) in the Lynx arc at z=3.36. This is a low metallicity (~10% solar) HII galaxy which is undergoing a burst of star formation of <5 Myr age. One possible scenario that explains the emission line spectrum of the Lynx arc, the large strength of the nitrogen lines and the HeII emission is that the object has experienced a merger event that has triggered a burst of star formation. WR stars have formed that contribute to a fast enrichment of the ISM and its overabundance of nitrogen.

12 pages, 1 figure. Accepted for publication in MNRAS

References in corpus (8)

• The 'Forbidden' Abundance of Oxygen in the Sun
• Ultraluminous X-Ray Sources in External Galaxies
• A Reappraisal of the Solar Photospheric C/O Ratio
• High Resolution Imaging of the HeII lambda 4686 Emission Line Nebula Associated with the Ultraluminous X-Ray Source in Holmberg II
• Massive star formation in a gravitationally-lensed HII-galaxy at z=3.357
• Further multiwavelength observations of the SSA22 Ly_alpha emitting `blob'
• How old are the HII Galaxies?
• Discovery of the high--ionization emission line [Ne V] 3426 in the blue compact dwarf galaxy Tol 1214-277

Cited by in corpus (43)

• Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results
• De Re Metallica: The cosmic chemical evolution of galaxies
• Strong Nebular Line Ratios in the Spectra of z~2-3 Star-forming Galaxies: First Results from KBSS-MOSFIRE
• Ionization State of Inter-Stellar Medium in Galaxies: Evolution, SFR-M_star-Z Dependence, and Ionizing Photon Escape
• Modelling the nebular emission from primeval to present-day star-forming galaxies
• The MOSDEF Survey: Electron Density and Ionization Parameter at $z\sim 2.3$
• Physical Conditions in a Young, Unreddened, Low Metallicity Galaxy at High Redshift
• The MOSDEF Survey: Direct-Method Metallicities and ISM Conditions at $z\sim 1.5-3.5$
• The VIMOS Ultra Deep Survey: Nature, ISM properties, and ionizing spectra of CIII]1909 emitters at z=2-4
• Gravitationally Lensed Galaxies at 2<z<3.5: Direct Abundance Measurements of Lya Emitters
• High-resolution spectroscopy of a young, low-metallicity optically-thin L=0.02L* star-forming galaxy at z=3.12
• A young star-forming galaxy at z = 3.5 with an extended Ly\,$\alpha$ halo seen with MUSE
• N-enhancement in GN-z11: First evidence for supermassive stars nucleosynthesis in proto-globular clusters-like conditions at high redshift ?
• The Physical Conditions, Metallicity and Metal Abundance Ratios In a Highly Magnified Galaxy at z = 3.6252
• The Low Mass End of the Fundamental Relation for Gravitationally Lensed Star Forming Galaxies at 1<z<6
• Extreme N-emitters at high-redshift: signatures of supermassive stars and globular cluster or black hole formation in action?
• An investigation of the luminosity-metallicity relation for a large sample of low-metallicity emission-line galaxies
• Temperature-based metallicity measurements at z=0.8: direct calibration of strong-line diagnostics at intermediate redshift
• Testing metallicity indicators at z~1.4 with the gravitationally lensed galaxy CASSOWARY 20
• CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high-$z$ analogs at the dawn of the JWST era
• The Effects of Stellar Population and Gas Covering Fraction on the Emergent Lyman Alpha Emission of High-Redshift Galaxies
• Ly-alpha excess in high redshift radio galaxies: a signature of star formation
• Evolution of N/O Abundance Ratios and Ionization Parameters from z~0 to 2 Investigated by the Direct Temperature Method
• The unusual NIV]-emitter galaxy GDS J033218.92-275302.7: star formation or AGN-driven winds from a massive galaxy at z=5.56
• The DEEP2 Galaxy Redshift Survey: Discovery of Luminous, Metal-poor, Sta r-forming Galaxies at Redshifts z~0.7
• Massive star formation in Wolf-Rayet galaxies: I. Optical and NIR photometric results
• Ly-alpha emitters in the GOODS-S field: a powerful pure nebular SED with N IV] emission at z=5.563
• Star formation and stellar populations in the Wolf-Rayet(?) luminous compact blue galaxy IRAS 08339+6517
• The BPT Diagram in Cosmological Galaxy Formation Simulations: Understanding the Physics Driving Offsets at High-Redshift
• Fast-rotating massive Population~III stars as possible sources of extreme N-enrichment in high-redshift galaxies
• Deep rest-frame far-UV spectroscopy of the giant Lyman-alpha emitter 'Himiko'
• Testing strong line metallicity diagnostics at z~2
• Nature and chemical abundances of a sample of Lyman-$\alpha$ emitter objects at high redshift
• Ionization of large-scale absorbing haloes and feedback events from high-redshift radio galaxies
• High N/O ratio at high redshift as a result of a strong burst of star formation and differential galactic winds
• Photoionization models for extreme Ly$\alpha$ $\lambda$1216 and HeII $\lambda$1640 ratios in quasar halos, and PopIII vs AGN diagnostics
• MUSE unravels the ionisation and origin of metal enriched absorbers in the gas halo of a z = 2.92 radio galaxy
• Very massive stars at low metallicity: evolution, synthetic spectroscopy, and impact on the integrated light of starbursts
• Galaxies in front of Quasars: Mrk 1456 and SDSS J114719.90+522923.2
• HeII emitters at cosmic noon and beyond. Characterising the HeII λ1640 emission with MUSE and JWST/NIRSpec
• Analogs of primeval galaxies two billion years after the Big Bang
• The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
• Discovery of new N-emitters over a wide redshift range