FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2141529712> ?p ?o ?g. }

• W2141529712 endingPage "A81" @default.
• W2141529712 startingPage "A81" @default.
• W2141529712 abstract "Aims: Revealing the fragmentation, infall, and outflow processes in the immediate environment around massive young stellar objects is crucial for understanding the formation of the most massive stars. Methods: With this goal in mind we present the so far highest spatial-resolution thermal submm line and continuum observations toward the young high-mass protostar NGC7538 IRS1. Using the Plateau de Bure Interferometer in its most extended configuration at 843mum wavelength, we achieved a spatial resolution of 0.2x0.17, corresponding to ~500AU at a distance of 2.7,kpc. Results: For the first time, we have observed the fragmentation of the dense inner core of this region with at least three subsources within the inner 3000 AU. The outflow exhibits blue- and red-shifted emission on both sides of the central source indicating that the current orientation has to be close to the line-of-sight, which differs from other recent models. We observe rotational signatures in northeast-southwest direction; however, even on scales of 500 AU, we do not identify any Keplerian rotation signatures. This implies that during the early evolutionary stages any stable Keplerian inner disk has to be very small (<=500 AU). The high-energy line HCN(4-3)v2=1 (E_u/k=1050K) is detected over an extent of approximately 3000 AU. In addition to this, the detection of red-shifted absorption from this line toward the central dust continuum peak position allows us to estimate infall rates of ~1.8x10^(-3)Msun/yr on the smallest spatial scales. Although all that gas will not necessarily be accreted onto the central protostar, nevertheless, such inner core infall rates are among the best proxies of the actual accretion rates one can derive during the early embedded star formation phase. These data are consistent with collapse simulations and the observed high multiplicity of massive stars." @default.
• W2141529712 created "2016-06-24" @default.
• W2141529712 creator A5030471986 @default.
• W2141529712 creator A5062209257 @default.
• W2141529712 creator A5072775492 @default.
• W2141529712 date "2013-10-01" @default.
• W2141529712 modified "2023-10-06" @default.
• W2141529712 title "Fragmentation, infall, and outflow around the showcase massive protostar NGC 7538 IRS1 at 500 AU resolution" @default.
• W2141529712 cites W1653496791 @default.
• W2141529712 cites W1679973192 @default.
• W2141529712 cites W1964862177 @default.
• W2141529712 cites W1965372241 @default.
• W2141529712 cites W1967433269 @default.
• W2141529712 cites W1970098680 @default.
• W2141529712 cites W1974945287 @default.
• W2141529712 cites W1975513891 @default.
• W2141529712 cites W1981113393 @default.
• W2141529712 cites W1988536102 @default.
• W2141529712 cites W1991857324 @default.
• W2141529712 cites W2004333979 @default.
• W2141529712 cites W2005695433 @default.
• W2141529712 cites W2009821926 @default.
• W2141529712 cites W2013582474 @default.
• W2141529712 cites W2014687698 @default.
• W2141529712 cites W2018657673 @default.
• W2141529712 cites W2021429567 @default.
• W2141529712 cites W2026285818 @default.
• W2141529712 cites W2034649301 @default.
• W2141529712 cites W2055281353 @default.
• W2141529712 cites W2057891613 @default.
• W2141529712 cites W2058194439 @default.
• W2141529712 cites W2059674272 @default.
• W2141529712 cites W2061718958 @default.
• W2141529712 cites W2068005805 @default.
• W2141529712 cites W2073455766 @default.
• W2141529712 cites W2080285004 @default.
• W2141529712 cites W2081550845 @default.
• W2141529712 cites W2082250392 @default.
• W2141529712 cites W2088514135 @default.
• W2141529712 cites W2089819200 @default.
• W2141529712 cites W2093858980 @default.
• W2141529712 cites W2106404450 @default.
• W2141529712 cites W2109700480 @default.
• W2141529712 cites W2118236047 @default.
• W2141529712 cites W2139243881 @default.
• W2141529712 cites W2140347367 @default.
• W2141529712 cites W2140883726 @default.
• W2141529712 cites W2150529442 @default.
• W2141529712 cites W2153249052 @default.
• W2141529712 cites W2153318110 @default.
• W2141529712 cites W2157598648 @default.
• W2141529712 cites W2170204004 @default.
• W2141529712 cites W3099123091 @default.
• W2141529712 cites W3099244088 @default.
• W2141529712 cites W3100194344 @default.
• W2141529712 cites W3100455678 @default.
• W2141529712 cites W3100842461 @default.
• W2141529712 cites W3100847552 @default.
• W2141529712 cites W3102040420 @default.
• W2141529712 cites W3102256768 @default.
• W2141529712 cites W3103708395 @default.
• W2141529712 cites W3104911998 @default.
• W2141529712 cites W3106118197 @default.
• W2141529712 cites W4300577254 @default.
• W2141529712 cites W4301772955 @default.
• W2141529712 doi "https://doi.org/10.1051/0004-6361/201321498" @default.
• W2141529712 hasPublicationYear "2013" @default.
• W2141529712 type Work @default.
• W2141529712 sameAs 2141529712 @default.
• W2141529712 citedByCount "45" @default.
• W2141529712 countsByYear W21415297122014 @default.
• W2141529712 countsByYear W21415297122015 @default.
• W2141529712 countsByYear W21415297122016 @default.
• W2141529712 countsByYear W21415297122017 @default.
• W2141529712 countsByYear W21415297122018 @default.
• W2141529712 countsByYear W21415297122019 @default.
• W2141529712 countsByYear W21415297122020 @default.
• W2141529712 countsByYear W21415297122021 @default.
• W2141529712 countsByYear W21415297122022 @default.
• W2141529712 countsByYear W21415297122023 @default.
• W2141529712 crossrefType "journal-article" @default.
• W2141529712 hasAuthorship W2141529712A5030471986 @default.
• W2141529712 hasAuthorship W2141529712A5062209257 @default.
• W2141529712 hasAuthorship W2141529712A5072775492 @default.
• W2141529712 hasBestOaLocation W21415297121 @default.
• W2141529712 hasConcept C111919701 @default.
• W2141529712 hasConcept C121332964 @default.
• W2141529712 hasConcept C125857072 @default.
• W2141529712 hasConcept C1276947 @default.
• W2141529712 hasConcept C150846664 @default.
• W2141529712 hasConcept C153294291 @default.
• W2141529712 hasConcept C18797539 @default.
• W2141529712 hasConcept C191015642 @default.
• W2141529712 hasConcept C23254167 @default.
• W2141529712 hasConcept C2778146052 @default.
• W2141529712 hasConcept C2780928442 @default.
• W2141529712 hasConcept C41008148 @default.
• W2141529712 hasConcept C44870925 @default.

• next