Matches in SemOpenAlex for { <https://semopenalex.org/work/W1598160123> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W1598160123 abstract "There are now two dominant models of how stars form: gravitational collapse theory holds that star-forming molecular clumps, typically hundreds to thousands of solar masses in mass, fragment into gaseous cores that subsequently collapse to make individual stars or small multiple systems. In contrast, competitive accretion theory suggests that at birth all stars are much smaller than the typical stellar mass (~0.5 solar masses), and that final stellar masses are determined by the subsequent accretion of unbound gas from the clump. Competitive accretion models explain brown dwarfs and free-floating planets as protostars ejected from star-forming clumps before accreting much mass, predicting that they should lack disks, have high velocity dispersions, and form more frequently in denser clumps. They also predict that mean stellar mass should vary within the Galaxy. Here we derive a simple estimate for the rate of competitive accretion as a function of the star-forming environment, based partly on simulations, and determine in what types of environments competitive accretion can occur. We show that no observed star-forming region produces significant competitive accretion, and that simulations that show competitive accretion do so because their properties differ from those determined by observation. Our result shows that stars form by gravitational collapse, and explains why observations have failed to confirm predictions of the competitive accretion scenario." @default.
- W1598160123 created "2016-06-24" @default.
- W1598160123 creator A5014544028 @default.
- W1598160123 creator A5050357373 @default.
- W1598160123 creator A5071800427 @default.
- W1598160123 date "2005-10-13" @default.
- W1598160123 modified "2023-09-23" @default.
- W1598160123 title "Stars Form By Gravitational Collapse, Not Competitive Accretion" @default.
- W1598160123 cites W163416985 @default.
- W1598160123 cites W1866380421 @default.
- W1598160123 cites W1968137411 @default.
- W1598160123 cites W1980548226 @default.
- W1598160123 cites W1985631600 @default.
- W1598160123 cites W1993244509 @default.
- W1598160123 cites W2001401569 @default.
- W1598160123 cites W2011578107 @default.
- W1598160123 cites W2042150149 @default.
- W1598160123 cites W2064412245 @default.
- W1598160123 cites W2073961934 @default.
- W1598160123 cites W2078796566 @default.
- W1598160123 cites W2088763329 @default.
- W1598160123 cites W2096393314 @default.
- W1598160123 cites W2100758318 @default.
- W1598160123 cites W2107225101 @default.
- W1598160123 cites W2126461585 @default.
- W1598160123 cites W2126792076 @default.
- W1598160123 cites W2139126784 @default.
- W1598160123 cites W2142228699 @default.
- W1598160123 cites W2142538376 @default.
- W1598160123 cites W2159923351 @default.
- W1598160123 cites W2166026900 @default.
- W1598160123 hasPublicationYear "2005" @default.
- W1598160123 type Work @default.
- W1598160123 sameAs 1598160123 @default.
- W1598160123 citedByCount "1" @default.
- W1598160123 countsByYear W15981601232013 @default.
- W1598160123 crossrefType "posted-content" @default.
- W1598160123 hasAuthorship W1598160123A5014544028 @default.
- W1598160123 hasAuthorship W1598160123A5050357373 @default.
- W1598160123 hasAuthorship W1598160123A5071800427 @default.
- W1598160123 hasConcept C121332964 @default.
- W1598160123 hasConcept C125857072 @default.
- W1598160123 hasConcept C1276947 @default.
- W1598160123 hasConcept C150846664 @default.
- W1598160123 hasConcept C165129702 @default.
- W1598160123 hasConcept C168589115 @default.
- W1598160123 hasConcept C18797539 @default.
- W1598160123 hasConcept C189159749 @default.
- W1598160123 hasConcept C2776401274 @default.
- W1598160123 hasConcept C44870925 @default.
- W1598160123 hasConcept C51244244 @default.
- W1598160123 hasConcept C98444146 @default.
- W1598160123 hasConceptScore W1598160123C121332964 @default.
- W1598160123 hasConceptScore W1598160123C125857072 @default.
- W1598160123 hasConceptScore W1598160123C1276947 @default.
- W1598160123 hasConceptScore W1598160123C150846664 @default.
- W1598160123 hasConceptScore W1598160123C165129702 @default.
- W1598160123 hasConceptScore W1598160123C168589115 @default.
- W1598160123 hasConceptScore W1598160123C18797539 @default.
- W1598160123 hasConceptScore W1598160123C189159749 @default.
- W1598160123 hasConceptScore W1598160123C2776401274 @default.
- W1598160123 hasConceptScore W1598160123C44870925 @default.
- W1598160123 hasConceptScore W1598160123C51244244 @default.
- W1598160123 hasConceptScore W1598160123C98444146 @default.
- W1598160123 hasLocation W15981601231 @default.
- W1598160123 hasOpenAccess W1598160123 @default.
- W1598160123 hasPrimaryLocation W15981601231 @default.
- W1598160123 hasRelatedWork W1548527772 @default.
- W1598160123 hasRelatedWork W1660872606 @default.
- W1598160123 hasRelatedWork W1971324370 @default.
- W1598160123 hasRelatedWork W1974945287 @default.
- W1598160123 hasRelatedWork W2036762411 @default.
- W1598160123 hasRelatedWork W2107225101 @default.
- W1598160123 hasRelatedWork W2109866421 @default.
- W1598160123 hasRelatedWork W2132926566 @default.
- W1598160123 hasRelatedWork W2137885638 @default.
- W1598160123 hasRelatedWork W2181701868 @default.
- W1598160123 hasRelatedWork W2240558118 @default.
- W1598160123 hasRelatedWork W2469549514 @default.
- W1598160123 hasRelatedWork W2615281278 @default.
- W1598160123 hasRelatedWork W2964287126 @default.
- W1598160123 hasRelatedWork W2984796226 @default.
- W1598160123 hasRelatedWork W3099103929 @default.
- W1598160123 hasRelatedWork W3101134556 @default.
- W1598160123 hasRelatedWork W3104251152 @default.
- W1598160123 hasRelatedWork W3106248563 @default.
- W1598160123 hasRelatedWork W3112103559 @default.
- W1598160123 isParatext "false" @default.
- W1598160123 isRetracted "false" @default.
- W1598160123 magId "1598160123" @default.
- W1598160123 workType "article" @default.