Book contents
- Frontmatter
- Contents
- Participants
- Preface
- Violent Star Formation in 30 Doradus
- The Initial Mass Function of the Center of 30 Doradus
- The Nature and Kinematics of the Emission Nebulae in the Cyg OBI Supershell
- Asymmetry in the Vertical Distribution of Giant Molecular Clouds in the Carina Arm
- Supersonic Motions in Giant HII Regions
- A Kinematical Study of NGC 604
- UV Spectroscopy of Giant Extragalactic HII Regions: the Case of NGC 604
- Evolution of GEHRs: The Effects Caused by Champagne Flows
- Bursts of Star Formation in Central Disks of Galaxies
- Violent Star Formation
- Superassociations as Star Complexes with Violent Star Formation
- Violent Star Formation Driven by Shock-Shock Collisions
- The Search for Hierarchical Structure inside M31 Superassociations
- A Stochastic PSF Model: Smooth Spirals in Differentially Rotating Disks
- Spatiotemporal Pattern Driven by a Self-Regulating Mechanism of Star Formation
- Detection of an Age Gradient along the z-Axis in a Star-Forming Region
- Abundances of HII Regions and the Chemical Evolution of Galaxies
- Galaxy Properties in Different Environments: Star Formation in Bulges of Late-Type Spirals
- Star Formation in Galaxies in the Bootes Void
- Physical Properties of Giant Extragalactic HII Regions
- The Giant HII Region NGC 2363
- Photometric Diagrams of NGC 2366
- Spectroscopical Imaging of Star-Forming Regions
- A Study on the HII Regions of NGC 4449
- Metallicity Effects on the Properties of Very Young Star Clusters
- The Prototype Starburst Galaxy NGC 7714: Physical Conditions of the Gas and the Stellar Populations
- Tracing Violent Star Formation: HI Observations of Nearby Galaxies
- Massive Star Formation and Supergiant Shells in the Irregular Galaxy NGC 55
- Galactic Supershells
- Violent Star Formation in Dwarf Irregular Galaxies
- Very Metal-Poor Galaxies and the Primordial Helium Abundance
- Implications from HI Composition and Lyα Emission of HII Galaxies
- The IR- and X-Radiation of the Starburst Dwarf Galaxy UGCA 86
- High-Resolution CCD Photometry of HII Galaxies
- Formation of Narrow Hell λ4686 Emission in HII Galaxies: Link with X-Ray Emission
- Environmental Effects in Star-Forming Dwarf Galaxies
- Theory of Starburst and Ultraluminous Galaxies
- Colliding Galaxies, Shocked Gas, and Violent Star Formation
- Violent Star Formation in Merger Remnants
- UV Variability of IRAS 13224-3809
- Star Formation in Polar-Ring Galaxies
- Infrared Spectroscopy of IR-Luminous Galaxies
- Application of the Multiphase Model to the Galactic Bulge
- Stellar Populations and Population Gradients in Spiral Bulges
- Implications of Galaxy Alignment for the Galaxy Formation Problem
- Annular Structure Analysis of the Starburst Spiral Galaxy NGC 7217
- How a Dust Concentration Mimics Dynamical Signatures around the Nucleus of NGC 7331
- UGC 5101: An Ultraluminous IRAS Galaxy with Circumnuclear Star Formation
- The Stellar Content of Nearby and Distant Starbursts
- WR Stars in the Giant HII Region NGC 4236III
- Consequences of High Mass Loss Rates on Wolf-Rayet Populations in Starbursts
- Optical and Ultraviolet Morphology of the Starburst Regions in Wolf-Rayet Galaxies
- The Starburst Nucleus of M83
- Spectrophotometry of Haro Starburst Galaxies
- Starbursts in the Irregular Galaxy VV 523
- Long-Slit Spectroscopy of the Central Regions of Starburst Galaxies Henize 2-10 and Markarian 52
- Star Formation in Active Galactic Nuclei: the Cases of NGC 5135, NGC 6221 and NGC 7130
- Metallicity Effects on Starburst
- From 30 Doradus to QSOs
- Distance Indicators to Low-Luminosity AGN
- Broad- and Narrow-Band Imaging of the CfA Seyfert Sample
- Type Transitions in Starburst-Powered AGN
- Stellar Ionization of Low-Luminosity Active Galactic Nuclei
- Line Profiles in Compact Supernova Remnants and Active Galactic Nuclei
- Composite Galactic Nuclei
- The Nature and Origin of X-Ray Emission in Active Galaxies
- Starbursts and Compact Supernova Remnants
- Broad-Band and Line Emission from Fast Radiative Shocks in Dense Media
- Study of the Stellar Populations in AGN
- Bidimensional Spectroscopy of Seyfert Galaxies: Offset BLR in NGC 3227
- ROSAT Detection of the Most Rapidly Varying Seyfert Galaxy
- QSO Evolution: a Link with Starbursts?
- Evolution of Elliptical Galaxies – a Chemo-Dynamical Model
- Birth of Galaxies at z = 2 or Violent Star Formation at z = 0.4?
Starbursts in the Irregular Galaxy VV 523
Published online by Cambridge University Press: 10 November 2010
- Frontmatter
- Contents
- Participants
- Preface
- Violent Star Formation in 30 Doradus
- The Initial Mass Function of the Center of 30 Doradus
- The Nature and Kinematics of the Emission Nebulae in the Cyg OBI Supershell
- Asymmetry in the Vertical Distribution of Giant Molecular Clouds in the Carina Arm
- Supersonic Motions in Giant HII Regions
- A Kinematical Study of NGC 604
- UV Spectroscopy of Giant Extragalactic HII Regions: the Case of NGC 604
- Evolution of GEHRs: The Effects Caused by Champagne Flows
- Bursts of Star Formation in Central Disks of Galaxies
- Violent Star Formation
- Superassociations as Star Complexes with Violent Star Formation
- Violent Star Formation Driven by Shock-Shock Collisions
- The Search for Hierarchical Structure inside M31 Superassociations
- A Stochastic PSF Model: Smooth Spirals in Differentially Rotating Disks
- Spatiotemporal Pattern Driven by a Self-Regulating Mechanism of Star Formation
- Detection of an Age Gradient along the z-Axis in a Star-Forming Region
- Abundances of HII Regions and the Chemical Evolution of Galaxies
- Galaxy Properties in Different Environments: Star Formation in Bulges of Late-Type Spirals
- Star Formation in Galaxies in the Bootes Void
- Physical Properties of Giant Extragalactic HII Regions
- The Giant HII Region NGC 2363
- Photometric Diagrams of NGC 2366
- Spectroscopical Imaging of Star-Forming Regions
- A Study on the HII Regions of NGC 4449
- Metallicity Effects on the Properties of Very Young Star Clusters
- The Prototype Starburst Galaxy NGC 7714: Physical Conditions of the Gas and the Stellar Populations
- Tracing Violent Star Formation: HI Observations of Nearby Galaxies
- Massive Star Formation and Supergiant Shells in the Irregular Galaxy NGC 55
- Galactic Supershells
- Violent Star Formation in Dwarf Irregular Galaxies
- Very Metal-Poor Galaxies and the Primordial Helium Abundance
- Implications from HI Composition and Lyα Emission of HII Galaxies
- The IR- and X-Radiation of the Starburst Dwarf Galaxy UGCA 86
- High-Resolution CCD Photometry of HII Galaxies
- Formation of Narrow Hell λ4686 Emission in HII Galaxies: Link with X-Ray Emission
- Environmental Effects in Star-Forming Dwarf Galaxies
- Theory of Starburst and Ultraluminous Galaxies
- Colliding Galaxies, Shocked Gas, and Violent Star Formation
- Violent Star Formation in Merger Remnants
- UV Variability of IRAS 13224-3809
- Star Formation in Polar-Ring Galaxies
- Infrared Spectroscopy of IR-Luminous Galaxies
- Application of the Multiphase Model to the Galactic Bulge
- Stellar Populations and Population Gradients in Spiral Bulges
- Implications of Galaxy Alignment for the Galaxy Formation Problem
- Annular Structure Analysis of the Starburst Spiral Galaxy NGC 7217
- How a Dust Concentration Mimics Dynamical Signatures around the Nucleus of NGC 7331
- UGC 5101: An Ultraluminous IRAS Galaxy with Circumnuclear Star Formation
- The Stellar Content of Nearby and Distant Starbursts
- WR Stars in the Giant HII Region NGC 4236III
- Consequences of High Mass Loss Rates on Wolf-Rayet Populations in Starbursts
- Optical and Ultraviolet Morphology of the Starburst Regions in Wolf-Rayet Galaxies
- The Starburst Nucleus of M83
- Spectrophotometry of Haro Starburst Galaxies
- Starbursts in the Irregular Galaxy VV 523
- Long-Slit Spectroscopy of the Central Regions of Starburst Galaxies Henize 2-10 and Markarian 52
- Star Formation in Active Galactic Nuclei: the Cases of NGC 5135, NGC 6221 and NGC 7130
- Metallicity Effects on Starburst
- From 30 Doradus to QSOs
- Distance Indicators to Low-Luminosity AGN
- Broad- and Narrow-Band Imaging of the CfA Seyfert Sample
- Type Transitions in Starburst-Powered AGN
- Stellar Ionization of Low-Luminosity Active Galactic Nuclei
- Line Profiles in Compact Supernova Remnants and Active Galactic Nuclei
- Composite Galactic Nuclei
- The Nature and Origin of X-Ray Emission in Active Galaxies
- Starbursts and Compact Supernova Remnants
- Broad-Band and Line Emission from Fast Radiative Shocks in Dense Media
- Study of the Stellar Populations in AGN
- Bidimensional Spectroscopy of Seyfert Galaxies: Offset BLR in NGC 3227
- ROSAT Detection of the Most Rapidly Varying Seyfert Galaxy
- QSO Evolution: a Link with Starbursts?
- Evolution of Elliptical Galaxies – a Chemo-Dynamical Model
- Birth of Galaxies at z = 2 or Violent Star Formation at z = 0.4?
Summary
Introduction
VV 523 (= NGC 3991 – UGC 6933 – IRAS11549+3237) is a typical clumpy irregular galaxy. Its distance is 42.6 Mpc, its absolute blue magnitude is −20.2 and its U – B index –0.44. On CCD frames taken at the Bernard Lyot 2-m telescope of the Observatoire du Pic-du- Midi VV 523 shows a complex structure with three components of bright clumps scattered in a common envelope. The extension of the envelope is 80″ × 2″ within a surface brightness of 25 mag arcsec−2.
Observations
Three filters (B, R and I) were used for the CCD observations. The seeing was about 1 arcsecond. A wavelet transform with a scale parameter suited to the size of the starforming cells was used to detect the clumps and to provide their size, location and colour indexes. Figure 1 shows the wavelet transform of the B image. The photometric results are in Table 1. The clumps have a mean size of 200 parsecs and the B – I indexes exhibit a sequence in colour which corresponds to their location in the galaxy.
Long-slit spectra with a dispersion of 33 and 260 Å mm−1 were recorded with the Carelec spectrograph at the 1.93-m telescope of the Observatoire de Haute Provence. The spectra show strong emission lines typical of HII regions. Three regions of different intensities are detected and named A, B and C. In Table 1 we give the physical properties of each of the three regions.
- Type
- Chapter
- Information
- Violent Star FormationFrom 30 Doradus to QSOs, pp. 317 - 318Publisher: Cambridge University PressPrint publication year: 1994