The young stellar population of NGC 4214 as observed with HST. II. Results

Abstract

We present the results of a detailed UV-optical study of the nearby dwarf starburst galaxy NGC 4214 using multifilter HST/WFPC2+STIS photometry. The stellar extinction is found to be quite patchy, with some areas having values of E(4405-5495)< 0.1 mag and others, associated with star forming regions, much more heavily obscured, a result which is consistent with previous studies of the nebular extinction. We determined the ratio of blue-to-red supergiants and found it to be consistent with theoretical models for the metallicity of the SMC. The stellar IMF of the field in the range 20-100 solar masses is found to be steeper than Salpeter. A number of massive clusters and associations with ages between a few and 200 million years are detected and their properties are discussed.

arXiv comment49 pages, 12 figures, 6 tables

References in corpus (40)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Stellar population synthesis at the resolution of 2003
• Starburst99: Synthesis Models for Galaxies with Active Star Formation
• Embedded Clusters in Molecular Clouds
• The Initial Mass Function of Stars: Evidence for Uniformity in Variable Systems
• Database of Geneva stellar evolution tracks and isochrones for UBVRIJHKLL'M, HST-WFPC2, Geneva and Washington photometric systems
• The Effective Temperature Scale of Galactic Red Supergiants: Cool, But Not As Cool As We Thought
• Stellar evolution with rotation X: Wolf-Rayet star populations at solar metallicity
• Stellar evolution with rotation VII: Low metallicity models and the blue to red supergiant ratio in the SMC
• An analytical description of the disruption of star clusters in tidal fields with an application to Galactic open clusters
• The Age Distribution of Massive Star Clusters in the Antennae Galaxies
• Starburst-like Dust Extinction in the Small Magellanic Cloud
• The Evolution of Massive Stars. I. Red Supergiants in the Magellanic Clouds
• A Reanalysis of theUltraviolet Extinction from Interstellar Dust in the Large Magellanic Cloud
• Analysing observed star cluster SEDs with evolutionary synthesis models: Systematic uncertainties
• Numerical biases on IMF determinations created by binning
• Compact Star Clusters in Nearby Dwarf Irregular Galaxies
• CHORIZOS: a CHi-square cOde for parameteRized modelIng and characteriZation of phOtometry and Spectrophotometry
• Star formation in unbound giant molecular clouds: the origin of OB associations?
• The Origin of Massive O-type Field Stars. Part I: A Search for Clusters
• The Ionized Gas in Local Starburst Galaxies: Global and Small--Scale Feedback from Star Formation
• Star Cluster Formation and Evolution in Nearby Starburst Galaxies: I. Systematic Uncertainties
• Structural Properties of Massive Young Clusters
• On biases in the predictions of stellar population synthesis models
• The massive stellar content in NGC604 and its evolutionary state
• The Star Formation History of NGC 1705: a Post-Starburst Galaxy on the Verge of Activity
• Star Cluster Formation and Disruption Time-Scales - II. Evolution of the Star Cluster System in M82's Fossil Starburst
• The blue to red supergiant ratio in young clusters at various metallicities
• The Stellar Population and Star Clusters in the Unusual Local Group Galaxy IC 10
• Dynamical Mass Estimates for Five Young Massive Stellar Clusters
• Tip of the Red Giant Branch Distances to NGC 4214, UGC 685, and UGC 5456
• The Interaction between the ISM and Star Formation in the Dwarf Starburst Galaxy NGC 4214
• The Stellar Content of Nearby Star-Forming Galaxies. III. Unravelling the Nature of the Diffuse Ultraviolet Light
• Systematic uncertainties in the analysis of star cluster parameters based on broad-band imaging observations
• HST/WFPC2 and VLA Observations of the Ionized Gas in the Dwarf Starburst Galaxy NGC 4214
• The infrared Hourglass cluster in M8
• The Dwarf Irregular/Wolf-Rayet Galaxy NGC4214: I. A New Distance, Stellar Content, and Global Parameters
• On the importance of the few most massive stars: the ionizing cluster of NGC 588
• The young stellar population of NGC 4214 as observed with HST. I. Data and methods
• Spectral Types of Field and Cluster O-Stars

Cited by in corpus (32)

• An Overview of the Dwarf Galaxy Survey
• The Dawes Review 8: Measuring the Stellar Initial Mass Function
• Diverging UV and Halpha fluxes of star forming galaxies predicted by the IGIMF theory
• The galaxy-wide IMF of dwarf late-type to massive early-type galaxies
• An IMF Study of the Dwarf Starburst Galaxy NGC 4214
• Biases on initial mass function determinations. III. Cluster masses derived from unresolved photometry
• Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
• Far-Ultraviolet Observations of Outflows from IR-Luminous Galaxies
• The Star Formation History and Dynamics of the Ultra-diffuse Galaxy Dragonfly 44 in MOND and MOG
• Disentangling the ISM phases of the dwarf galaxy NGC 4214 using [CII] SOFIA/GREAT observations
• The Initial Mass Function of Field OB Stars in the Small Magellanic Cloud
• The Magnetic Field of the Irregular Galaxy NGC 4214
• Was the Milky Way a chain galaxy? Using the IGIMF theory to constrain the thin-disk star formation history and mass
• The 100 Myr Star Formation History of NGC 5471 from Cluster and Resolved Stellar Photometry
• The Chandra Local Volume Survey I: The X-ray Point Source Populations of NGC 55, NGC 2403, and NGC 4214
• The young stellar population of NGC 4214 as observed with HST. I. Data and methods
• Mapping the Recent Star Formation History of the Disk of M51
• The ACS Nearby Galaxy Survey Treasury VII. The NGC 4214 Starburst and the Effects of Star Formation History on Dwarf Morphology
• The dust SED of dwarf galaxies I. The case of NGC 4214
• A close look at the Centaurus A group of galaxies III. Recent star formation histories of late-type dwarfs around M83
• Modeling the physical properties in the ISM of the low-metallicity galaxy NGC4214
• Spitzer mid-infrared point sources in the fields of nearby galaxies
• Stellar population synthesis models with a physically varying IMF
• Infrared photometry of Young Massive Clusters in the starburst galaxy NGC 4214
• IMF-induced intrinsic uncertainties on measuring galaxy distances based on the number of giant stars: the case of the ultra-diffuse galaxy NGC 1052-DF2
• Resolved photometry of Young Massive Clusters in the starburst galaxy NGC 4214
• The Massive Star Population in M101. II. Spatial Variations in the Recent Star Formation History
• Identifying Stars of Mass >150 Msun from Their Eclipse by a Binary Companion
• Ultra-violet photo-ionisation in far-infrared selected sources
• H$\alpha$ Kinematics of Superbubbles and Supernova Remnants of the Dwarf galaxy NGC 4214
• Modeling the dust Spectral Energy Distribution of NGC 4214
• The Young Stellar Population of the Nearby Late-Type Galaxy NGC 1311