Matches in SemOpenAlex for { <https://semopenalex.org/work/W2134456447> ?p ?o ?g. }
- W2134456447 endingPage "A145" @default.
- W2134456447 startingPage "A145" @default.
- W2134456447 abstract "Despite their importance to a number of astrophysical fields, the lifecycles of very massive stars are still poorly defined. In order to address this shortcoming, we present a detailed quantitative study of the physical properties of four early-B hypergiants (BHGs); Cyg OB2 #12, zeta Sco, HD190603 and BP Cru. These are combined with an analysis of their long-term spectroscopic and photometric behaviour in order to determine their evolutionary status. The long-term datasets revealed that they are remarkably stable over long periods (>40yr), with the possible exception of zeta Sco prior to the 20th century, in contrast to the typical excursions that characterise luminous blue variables (LBVs). Zeta Sco, HD190603 and BP Cru possess physical properties intermediate between B supergiants and LBVs; we therefore suggest that BHGs are the immediate descendants and progenitors (respectively) of such stars (for initial masses in the range ~30-60Msun). In contrast, while the wind properties of Cyg OB2 #12 are consistent with this hypothesis, the combination of extreme luminosity and spectroscopic mass (~110Msun) and comparatively low temperature means it cannot be accommodated in such a scheme. Likewise, despite its co-location with several LBVs above the Humphreys-Davidson (HD) limit, the lack of long term variability and its unevolved chemistry apparently excludes such an identification. Since such massive stars are not expected to evolve to such cool temperatures, the properties of Cyg OB2 #12 are difficult to understand under current evolutionary paradigms. [ABRIDGED]" @default.
- W2134456447 created "2016-06-24" @default.
- W2134456447 creator A5020684851 @default.
- W2134456447 creator A5025629194 @default.
- W2134456447 creator A5035039614 @default.
- W2134456447 creator A5047547447 @default.
- W2134456447 creator A5078510529 @default.
- W2134456447 creator A5080501979 @default.
- W2134456447 date "2012-05-01" @default.
- W2134456447 modified "2023-10-14" @default.
- W2134456447 title "On the nature of the galactic early-B hypergiants" @default.
- W2134456447 cites W1516349940 @default.
- W2134456447 cites W1586262041 @default.
- W2134456447 cites W1963796955 @default.
- W2134456447 cites W1964383319 @default.
- W2134456447 cites W1965369730 @default.
- W2134456447 cites W1965858347 @default.
- W2134456447 cites W1966795781 @default.
- W2134456447 cites W1967284924 @default.
- W2134456447 cites W1969545471 @default.
- W2134456447 cites W1970858303 @default.
- W2134456447 cites W1974190457 @default.
- W2134456447 cites W1975297493 @default.
- W2134456447 cites W1976914147 @default.
- W2134456447 cites W1977457396 @default.
- W2134456447 cites W1980648221 @default.
- W2134456447 cites W1983678437 @default.
- W2134456447 cites W1984522697 @default.
- W2134456447 cites W1986287522 @default.
- W2134456447 cites W1987113433 @default.
- W2134456447 cites W1990070583 @default.
- W2134456447 cites W1991092997 @default.
- W2134456447 cites W1993431461 @default.
- W2134456447 cites W1994689566 @default.
- W2134456447 cites W1997547663 @default.
- W2134456447 cites W2001281020 @default.
- W2134456447 cites W2001798821 @default.
- W2134456447 cites W2002544412 @default.
- W2134456447 cites W2002579380 @default.
- W2134456447 cites W2005582403 @default.
- W2134456447 cites W2007309957 @default.
- W2134456447 cites W2008356216 @default.
- W2134456447 cites W2012564688 @default.
- W2134456447 cites W2013859371 @default.
- W2134456447 cites W2015322641 @default.
- W2134456447 cites W2016665381 @default.
- W2134456447 cites W2017796621 @default.
- W2134456447 cites W2018271421 @default.
- W2134456447 cites W2018858432 @default.
- W2134456447 cites W2021039418 @default.
- W2134456447 cites W2023178823 @default.
- W2134456447 cites W2024909325 @default.
- W2134456447 cites W2025076181 @default.
- W2134456447 cites W2025107042 @default.
- W2134456447 cites W2025251371 @default.
- W2134456447 cites W2027731530 @default.
- W2134456447 cites W2031700711 @default.
- W2134456447 cites W2032897599 @default.
- W2134456447 cites W2033237632 @default.
- W2134456447 cites W2035538552 @default.
- W2134456447 cites W2036563115 @default.
- W2134456447 cites W2039176077 @default.
- W2134456447 cites W2039700937 @default.
- W2134456447 cites W2041151710 @default.
- W2134456447 cites W2041855568 @default.
- W2134456447 cites W2042194507 @default.
- W2134456447 cites W2042917575 @default.
- W2134456447 cites W2043779746 @default.
- W2134456447 cites W2045892282 @default.
- W2134456447 cites W2046418994 @default.
- W2134456447 cites W2047195951 @default.
- W2134456447 cites W2047935381 @default.
- W2134456447 cites W2048070483 @default.
- W2134456447 cites W2048107754 @default.
- W2134456447 cites W2048507479 @default.
- W2134456447 cites W2050451753 @default.
- W2134456447 cites W2050546252 @default.
- W2134456447 cites W2057959296 @default.
- W2134456447 cites W2058633551 @default.
- W2134456447 cites W2059484832 @default.
- W2134456447 cites W2060327971 @default.
- W2134456447 cites W2060929908 @default.
- W2134456447 cites W2061381182 @default.
- W2134456447 cites W2064474160 @default.
- W2134456447 cites W2065177573 @default.
- W2134456447 cites W2066555256 @default.
- W2134456447 cites W2066847928 @default.
- W2134456447 cites W2067129824 @default.
- W2134456447 cites W2070252310 @default.
- W2134456447 cites W2072631581 @default.
- W2134456447 cites W2072962981 @default.
- W2134456447 cites W2075412292 @default.
- W2134456447 cites W2076014018 @default.
- W2134456447 cites W2076151967 @default.
- W2134456447 cites W2076319849 @default.
- W2134456447 cites W2077310516 @default.
- W2134456447 cites W2078011235 @default.
- W2134456447 cites W2078716823 @default.