FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2129450230> ?p ?o ?g. }

• W2129450230 abstract "Context. Massive stars, although being important building blocks of galaxies, are still not fully understood. This especially holds true for Wolf-Rayet (WR) stars with their strong mass loss, whose spectral analysis requires adequate model atmospheres. Aims. Following our comprehensive studies of the WR stars in the Milky Way, we now present spectroscopic analyses of almost all known WN stars in the LMC. Methods. For the quantitative analysis of the wind-dominated emission-line spectra, we employ the Potsdam Wolf-Rayet (PoWR) model atmosphere code. By fitting synthetic spectra to the observed spectral energy distribution and the available spectra (ultraviolet and optical), we obtain the physical properties of 107 stars. Results. We present the fundamental stellar and wind parameters for an almost complete sample of WN stars in the LMC. Among those stars that are putatively single, two different groups can be clearly distinguished. While 12% of our sample are more luminous than 106 L ⊙ and contain a significant amount of hydrogen, 88% of the WN stars, with little or no hydrogen, populate the luminosity range between log  (L /L ⊙ ) = 5.3 ... 5.8. Conclusions. While the few extremely luminous stars (log  (L /L ⊙ ) > 6), if indeed single stars, descended directly from the main sequence at very high initial masses, the bulk of WN stars have gone through the red-supergiant phase. According to their luminosities in the range of log  (L /L ⊙ ) = 5.3 ... 5.8, these stars originate from initial masses between 20 and 40 M ⊙ . This mass range is similar to the one found in the Galaxy, i.e. the expected metallicity dependence of the evolution is not seen. Current stellar evolution tracks, even when accounting for rotationally induced mixing, still partly fail to reproduce the observed ranges of luminosities and initial masses. Moreover, stellar radii are generally larger and effective temperatures correspondingly lower than predicted from stellar evolution models, probably due to subphotospheric inflation." @default.
• W2129450230 created "2016-06-24" @default.
• W2129450230 creator A5005962967 @default.
• W2129450230 creator A5018340610 @default.
• W2129450230 creator A5049916940 @default.
• W2129450230 creator A5068030754 @default.
• W2129450230 creator A5069978045 @default.
• W2129450230 creator A5074638066 @default.
• W2129450230 creator A5075109615 @default.
• W2129450230 creator A5078031163 @default.
• W2129450230 creator A5079599514 @default.
• W2129450230 date "2014-05-01" @default.
• W2129450230 modified "2023-10-16" @default.
• W2129450230 title "The Wolf-Rayet stars in the Large Magellanic Cloud - A comprehensive analysis of the WN class" @default.
• W2129450230 cites W1509200084 @default.
• W2129450230 cites W1559280018 @default.
• W2129450230 cites W1594939389 @default.
• W2129450230 cites W1620468892 @default.
• W2129450230 cites W1633924865 @default.
• W2129450230 cites W1634943124 @default.
• W2129450230 cites W1653395361 @default.
• W2129450230 cites W1839232526 @default.
• W2129450230 cites W1958408535 @default.
• W2129450230 cites W1967276478 @default.
• W2129450230 cites W1974013510 @default.
• W2129450230 cites W1974755865 @default.
• W2129450230 cites W1977965963 @default.
• W2129450230 cites W1979415629 @default.
• W2129450230 cites W1983785702 @default.
• W2129450230 cites W1986248936 @default.
• W2129450230 cites W1986287522 @default.
• W2129450230 cites W1987079650 @default.
• W2129450230 cites W1987528764 @default.
• W2129450230 cites W1989319885 @default.
• W2129450230 cites W1991371002 @default.
• W2129450230 cites W1993133574 @default.
• W2129450230 cites W1996900209 @default.
• W2129450230 cites W1997270031 @default.
• W2129450230 cites W1998335860 @default.
• W2129450230 cites W2002416181 @default.
• W2129450230 cites W2004645596 @default.
• W2129450230 cites W2012787733 @default.
• W2129450230 cites W2013767313 @default.
• W2129450230 cites W2018284940 @default.
• W2129450230 cites W2018512095 @default.
• W2129450230 cites W2022616507 @default.
• W2129450230 cites W2028491290 @default.
• W2129450230 cites W2029512469 @default.
• W2129450230 cites W2031789850 @default.
• W2129450230 cites W2034560836 @default.
• W2129450230 cites W2036107912 @default.
• W2129450230 cites W2038617548 @default.
• W2129450230 cites W2040481510 @default.
• W2129450230 cites W2041030501 @default.
• W2129450230 cites W2041659957 @default.
• W2129450230 cites W2043792386 @default.
• W2129450230 cites W2044520990 @default.
• W2129450230 cites W2045367318 @default.
• W2129450230 cites W2045489864 @default.
• W2129450230 cites W2046376209 @default.
• W2129450230 cites W2048067910 @default.
• W2129450230 cites W2049117680 @default.
• W2129450230 cites W2050518262 @default.
• W2129450230 cites W2054273224 @default.
• W2129450230 cites W2059975997 @default.
• W2129450230 cites W2062150455 @default.
• W2129450230 cites W2067886648 @default.
• W2129450230 cites W2071212245 @default.
• W2129450230 cites W2071655479 @default.
• W2129450230 cites W2071762022 @default.
• W2129450230 cites W2071811825 @default.
• W2129450230 cites W2074238959 @default.
• W2129450230 cites W2074590184 @default.
• W2129450230 cites W2077282444 @default.
• W2129450230 cites W2079168096 @default.
• W2129450230 cites W2085211109 @default.
• W2129450230 cites W2085692565 @default.
• W2129450230 cites W2087033679 @default.
• W2129450230 cites W2088535364 @default.
• W2129450230 cites W2088579389 @default.
• W2129450230 cites W2089708303 @default.
• W2129450230 cites W2090335768 @default.
• W2129450230 cites W2090712384 @default.
• W2129450230 cites W2090985705 @default.
• W2129450230 cites W2093360324 @default.
• W2129450230 cites W2099071628 @default.
• W2129450230 cites W2099461377 @default.
• W2129450230 cites W2099710546 @default.
• W2129450230 cites W2101758936 @default.
• W2129450230 cites W2104588216 @default.
• W2129450230 cites W2108976558 @default.
• W2129450230 cites W2112022263 @default.
• W2129450230 cites W2113865096 @default.
• W2129450230 cites W2120460672 @default.
• W2129450230 cites W2121128861 @default.
• W2129450230 cites W2123228472 @default.
• W2129450230 cites W2123573539 @default.
• W2129450230 cites W2125328487 @default.
• W2129450230 cites W2125902541 @default.
• W2129450230 cites W2129303303 @default.

• next