Dwarf Galaxies: Keys to Galaxy Formation and Evolution: Proceedings of Symposium 3 of Jenam 2010

ISBN-13: 9783642220173 / Angielski / Twarda / 2012 / 346 str.

Polychronis Papaderos; Simone Recchi; Gerhard Hensler

Opis

Dwarf galaxy research constitutes an extremely vibrant field of astrophysical research, with many long-standing questions still unsettled and new ones constantly arising. The intriguing diversity of the dwarf galaxy population, observed with advanced ground-based and space-borne observatories over a wide spectral window providing an unprecedented level of detail, poses new challenges for both observers and theoreticians.

The aim of this symposium was to bring together these two groups to exchange ideas and new results on the many evolutionary aspects of and open issues concerning dwarf galaxies. The main topics addressed include: the birth of dwarf galaxies: theoretical concepts and observable relics across wavelengths and time, the morphological, structural and chemical evolution of dwarf galaxies, possible evolutionary connections between early-type and late-type dwarfs, the star formation history of dwarf galaxies and its dependence on intrinsic and environmental properties, the origin and implications of starburst activity in dwarf galaxies, the fate of dwarfish systems born out of tidally ejected matter in galaxy collisions.

Spis treści

Part I General Properties of Dwarf Galaxies.- Outstanding Questions in Dwarf Galaxy Research.- The ISM of Dwarf Galaxies.- Part II Dwarf GalaxyModels.- Predicting the frequencies of young and of tiny galaxies.- The Chemical and Dynamical Evolution of Isolated Dwarf Galaxies.- Formation and evolution of gas-rich dwarf galaxies.- Flat Metallicity Profiles in Rotating Dwarf Galaxies.- The formation of ultra-compact dwarf galaxies and nucleated dwarf galaxies.- MorphologicalMutations of Dwarf Galaxies.- Part III Dwarf Galaxies in the Local Group.- Stellar archeology: a cosmological view of dSphs.- Constraints on the Effects of Reionization in the Star Formation History of Dwarf Galaxies: some Conclusions from the LCID Project.- The Sagittarius Dwarf Galaxy as a Product of Tidal Stirring.- Spatial Distribution of Stellar Components in the Magellanic Clouds.- Origin and Evolution State of the Fehrenbach-Duflot Star.- Part IV Dwarf Elliptical Galaxies.- Dwarf Elliptical Galaxies - United and Divided.- The [α/Fe] Ratios in Dwarf Galaxies: Evidence for a Non-universal Stellar Initial Mass Function?.- A SAURON study of dwarf elliptical galaxies in the Virgo Cluster: kinematics and stellar populations.- Dust in cluster dwarf elliptical galaxies.- LPVs as Possible Distance Indicators in NGC147 and NGC185.- Part V Star-Forming Dwarf Galaxies.- Star forming dwarf galaxies.- Measuring Star Formation Rates in Dwarf Galaxies.- 3D Spectroscopic Observations of Star-Forming Dwarf Galaxies.- Ionization Conditions in the Central Giant Hii Region of NGC 5253.- Mapping the properties of Blue Compact Dwarf galaxies by means of Integral Field Spectroscopy.- Physical properties of 6dF dwarf galaxies.- Wolf-Rayet galaxies in SDSS DR7.- Lyman α emission and Super-Star Clusters in dwarf galaxies.- Unveiling the nature of the “Green Pea” galaxies.- On the metallicity of Blue Compact Dwarfs.- The LITTLE THINGS Survey.- Warp or Lag? The Ionized and Neutral Hydrogen Gas in the Edge-on Dwarf Galaxy UGC 1281.- Part VI Dwarf Galaxies and their Environment.- Properties of Hα emitting dwarf galaxies in nearby clusters.- Dwarf galaxies in nearby galaxy groups.- Dust content of Virgo star-forming dwarf galaxies.- Dwarf galaxies in nearby groups of galaxies: Photometric properties.- Near-Infrared Structural Properties of Irregular Dwarf Galaxies in Nearby Galaxy Groups.- Birth, life and survival of Tidal Dwarf Galaxies.- Dwarf galaxies in the nearby Lynx-Cancer void: photometry, colours and ages.- Pairwise dwarf galaxy formation and galaxy downsizing: some clues from extremely metal-poor Blue Compact Dwarf galaxies.

Blurb

Dwarf galaxy research constitutes an extremely vibrant field of astrophysical research, with many long-standing questions still unsettled and new ones constantly arising. The intriguing diversity of the dwarf galaxy population, observed with advanced ground-based and space-borne observatories over a wide spectral window providing an unprecedented level of detail, poses new challenges for both observers and theoreticians.

The aim of this symposium was to bring together these two groups to exchange ideas and new results on the many evolutionary aspects of and open issues concerning dwarf galaxies. The main topics addressed include:

• the birth of dwarf galaxies: theoretical concepts and observable relics across wavelength and time
• the morphological, structural and chemical evolution of dwarf galaxies
• possible evolutionary connections between early-type and late-type dwarfs
• the star formation history of dwarf galaxies and its dependence on intrinsic and environmental properties
• the origin and implications of starburst activity in dwarf galaxies
• the fate of dwarfish systems born out of tidally ejected matter in galaxy collisions