Is Dark Matter in Spiral Galaxies Cold Gas? I. Observational Constraints and Dynamical Clues About Galaxy Evolution

Abstract

Based on dynamical constraints about the Hubble sequence evolution, observational data and a number of "conspiracies", we propose that the dark matter around spiral galaxies is in the form of cold gas, essentially in molecular form and rotationally supported. (full A&A paper (in press) available by anonymous ftp at obssd8.unige.ch in /pub/fractal as postscript file: dm_paper_I.ps (170k), or papers I & II + figures as a compressed tar file dm_papers.Z.tar (2.1 Mb)).

15 pages, uuencoded compressed postscript, OBSGE-DM-I

Cited by in corpus (17)

• The New Galaxy: Signatures of its Formation
• Cosmology and Fundamental Physics with the Euclid Satellite
• Cosmology and fundamental physics with the Euclid satellite
• Missing Mass in Collisional Debris from Galaxies
• Molecules in galaxies
• Self-gravity as an explanation of the fractal structure of the interstellar medium
• Birth, life and survival of Tidal Dwarf Galaxies
• Fractal Dimensions and Scaling Laws in the Interstellar Medium: a new Field Theory approach
• Tidal Dwarf Galaxies and missing baryons
• Normal Nearby Galaxies
• The relationship between the neutral hydrogen and dark mass in the galaxies
• The Anthropic Principle and the Duration of the Cosmological Past
• Virial clouds explaining the observed rotational asymmetry in the galactic halos
• Tidal Dwarf Galaxies: Disc Formation at z=0
• Prospects for CDM sub-halo detection using high angular resolution observations
• H2 MAGIE: H2 as a Major Agent to Galaxy Interaction and Evolution
• Producing baryons from neutralinos in small H2 clumps over cosmological ages