Dark Galaxies and Lost Baryons (IAU S244)

Over the past century astronomers have discovered huge numbers of galaxies within our Universe by detecting the light from the stars they are made of. Now some astronomers believe that there are many other undetected galaxies that do not contain stars. IAU Symposium 244 saw heated debates surrounding the existence of these Dark Galaxies, discussing what a Dark Galaxy is and whether detections satisfy requirements for what one might be. Other contributions describe candidate Dark Galaxies, the baryon content of the Universe, and the discovery of the warm inter-galactic medium and low luminosity galaxies. Highlights include state-of-the-art observations of atomic hydrogen in the Universe that may be used to find Dark Galaxies, how gravitational lensing may be used to map the distribution of matter and inferences of dark structures, and the role of low luminosity galaxies in the formation of larger galaxies.

Spis treści:
Preface
Conference prelims
The HI that barked in the night M. J. Disney
The detection of dark galaxies in blind HI surveys J. I. Davies
Red haloes of galaxies - reservoirs of baryonic dark matter? E. Zackrisson, N. Bergvall, C. Flynn, G. Ostlin, G. Micheva and B. Baldwell
Constraints on dark and visible mass in galaxies from strong gravitational lensing S. Dye and S. Warren
Lost baryons at low redshift S. Mathur, F. Nicastro and R. Williams
Observed properties of dark matter on small spatial scales R. Wyse and G. Gilmore
The mass distribution in spiral galaxies P. Salucci
Connecting lost baryons and dark galaxies via QSO absorption lines T. Tripp
ALFALFA, HI cosmology in the local universe R. Giovanelli
The ALFALFA search for (almost) dark galaxies across the HI mass function M. Haynes
HI clouds detected towards Virgo with the Arecibo Legacy Fast ALFA Survey B. Kent
Cosmic variance in the HI mass function S. Schneider
The Arecibo Galaxy Environments Survey - potential for finding dark galaxies and results so far R. Minchin et al.
Free-floating HI clouds in the M81 group E. Brinks, F. Walter and E. Skillman
Where are the stars in dark galaxies J. Rosenberg, J. Salzer and J. Cannon
The halo by halo missing baryon problem S. McGaugh
The local void is really empty R. Tully
Voids in the local volume, a limit on appearance of a galaxy in a dark matter halo A. Tikhonov and A. Klypin
Dim baryons in the cosmic web C. Impey
A census of baryons in galaxy clusters and groups A. Gonzalez, D. Zaritsky and A. Zabludo
Statistical properties of the intercluster light from SDSS image stacking S. Zibetti
QSO strong gravitational lensing and the detection of dark halos A. Maccio
Strong gravitational lensing, bright galaxies and lost dark-matter L. Koopmans
Mapping the distribution of luminous and dark matter in strong lensing galaxies I. Ferreras, P. Saha, L. Williams and S. Burles
Tidal debris posing as dark galaxies P. Duc, F. Bournaud and E. Brinks
Numerical simulation of the dwarf companions of giant galaxies A. Nelson and P. Williams
Delayed galaxies C. Struck, M. Hancock, B. Smith, P. Appleton, V. Charmandaris and M. Giroux
Probe of dark galaxies via disturbed/lopsided isolated galaxies I. Karachentsev, V. Karachentseva, W. Huchtmeier, D. Makarov and S. Kaisin
Star formation thresholds J. Schaye
Scaling relations of dwarf galaxies without supernova-driven winds K. Tassis, A. Kravtsov and N. Gnedin
Star formation in massive low surface brightness galaxies K. ONeil
Linking clustering properties and the evolution of low surface brightness galaxies D. Bomans and S. Rosenbaum
Too small to form a galaxy, how the UV background determines the baryon fraction M. Hoeft, G. Yepes and S. Gottlober
Star formation in damped Lyman selected galaxies L. Christensen
Dark-matter content of early-type galaxies with planetary nebulae N. Napolitano et al.
Hunting for ghosts, low surface brightnesses from pixels R. Scaramella and S. Sabatini
Baryonic properties of the darkest galaxies E. Grebel
The dwarf low surface brightness population in different environments of the local universe S. Sabatini, J. Davies, S. Roberts and R. Scaramella
Mass modelling of dwarf spheroidal galaxies J. Klimentowski et al.
Evolution of dwarf galaxies in the Centaurus A Group L. Makarova and D. Makarov
A flat faint end of the Fornax cluster galaxy luminosity function S. Mieske, M. Hilker, L. Infante and C. Mendes de Oliveira
Can massive dark halos destroy the discs of dwarf galaxies? B. Fuchs and O. Esquivel
Dark galaxies and local very metal-poor gas-rich galaxies, possible interrelations S. Pustilnik
Morphology and environment of dwarf galaxies in the local universe H. Ann
Arecibo survey of HI emission from disk galaxies at redshift z 0.2 B. Catinella, M. Haynes, J. Gardner, A. Connolly and R. Giovanelli
AGES observations of Abel 1367 L. Cortese et al.
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