The DOI matches its Crossref record.
The origin of dwarf galaxies, cold dark matter, and biased galaxy formation
Abstract
The formation of dwarf, diffuse, metal-poor galaxies as a result of supernova-driven winds is reexamined in view of the accumulating data on the systematic properties of dwarfs in the Local Group and in the Virgo Cluster. The observed luminosity-radius-metallicity relations are found to be produced naturally inside dominant halos, with a mass-radius relation that resembles the predictions of the "cold" dark matter cosmological scenario. The critical condition for global gas loss as a result of the first burst of star formation is that the virial velocity be below a critical value on the order of 100 km s-1. In any hierarchial scenario for galaxy formation, this condition leads to two distinct classes of galaxies as observed: (1) the diffuse dwarfs which mostly originate from typical density perturbations; and (2) the normal, brighter galaxies which can originate only from the highest density peaks. This provides a statistical biasing mechanism for the preferential formation of bright galaxies in denser regions (clusters and superclusters).
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In the citing paper
“Coincidentally, our Galaxy is at the critical mass where one expects both the SNe and black hole feedback to be active.”
From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Dekel & Silk 1986
In the citing paper
“Galactic outflows are ubiquitous in galaxies containing active star formation or supermassive black hole activity.”
From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Dekel & Silk 1986
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Simulations of the formation, evolution and clustering of galaxies and quasars
Springel, V., White, S. D. M., Jenkins, A. R., Frenk, C. S., Yoshida, N., Gao, L., Navarro, J. F., Thacker, R. J., Croton, D., Helly, J. C., et al. (2005) · Nature · doi:10.1038/nature03597 · Cited by 5,060
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
Kormendy, J., & Ho, L. C. (2013) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082708-101811 · Cited by 4,421
Dark Matter Substructure within Galactic Halos
Moore, B., Ghigna, S., Governato, F., Lake, G., Quinn, T., Stadel, J., & Tozzi, P. (1999) · The Astrophysical Journal · doi:10.1086/312287 · Cited by 3,025
“Numerous studies have invoked feedback from star formation or an ionizing background to darken dwarfs by expelling gas and inhibiting star formation in low mass halos (Dekel & Silk 1986; Quinn, Katz & Efstathiou 1996).”
BackgroundWhere Are the Missing Galactic Satellites?
Klypin, A. A., Kravtsov, A. V., Valenzuela, O., & Prada, F. (1999) · The Astrophysical Journal · doi:10.1086/307643 · Cited by 2,844
DWARF GALAXIES OF THE LOCAL GROUP
Mateo, M. (1998) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.36.1.435 · Cited by 2,325
“Star-formation (Dekel & Silk 1986, Babul & Rees 1992, De Young and Heckman 1994) and ram-pressure stripping (Faber & Lin 1983, van den Bergh 1994c) have been proposed as means of removing gas from dwarfs in the inner Galactic halo.”
Background
Metadata
- Authors
- Dekel, A., & Silk, J.
- Affiliations
- Yale University (US)
- University of California, Berkeley (US)
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1986-04
- Volume
- 303
- Pages
- 39
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1964280853
- Cited by
- 1,919
- References
- 0
- Citations by year
- 2026: 40 · 2025: 69 · 2024: 68 · 2023: 53 · 2022: 54 · 2021: 74 · 2020: 64 · 2019: 66 · 2018: 55 · 2017: 53 · 2016: 92 · 2015: 58 · 2014: 53 · 2013: 77 · 2012: 71
- FWCI
- 32.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Astrophysical Journal (publishedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Keywords
- dwarf galaxies, cold dark matter, biased galaxy formation, supernova-driven winds, metal-poor galaxies, mass-radius relation, gas loss, hierarchical structure formation, density perturbations, Local Group, Virgo cluster, galaxy formation
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