Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978677142> ?p ?o ?g. }
- W1978677142 endingPage "113" @default.
- W1978677142 startingPage "113" @default.
- W1978677142 abstract "We present new NH3 (1,1), (2,2), and (4,4) observations from the Karl G. Jansky Very Large Array (VLA) compiled with work in the literature to explore the range of conditions observed in young, massive star-forming regions. To sample the effects of evolution independent from those of distance/resolution, abundance, and large-scale environment, we compare clumps in different evolutionary stages within a single Infrared Dark Cloud (IRDC), G32.02+0.06. We find that the early stages of clustered star formation are characterized by dense, parsec-scale filamentary structures interspersed with complexes of dense cores (<0.1 pc cores clustered in complexes separated by ~1 pc) with masses from about 10 to 100 Msun. The most quiescent core is the most extended while the star-forming cores are denser and more compact, showing very similar column density structure before and shortly after the onset of massive star formation, with peak surface densities >~ 1 g cm^-2. Quiescent cores and filaments show smoothly varying temperatures from 10-20 K, rising to over 40 K in star-forming cores. We calculate the virial parameters for 16 cores and find that the level of support provided by turbulence is generally insufficient to support them against gravitational collapse (alpha_vir ~ 0.6). The star-forming filaments show smooth velocity fields, punctuated by discontinuities at the sites of active star formation. We discuss the Massive Molecular Filament (MMF; M > 10^5 Msun, l > 60 pc) hosting the IRDC, hypothesizing that it may have been shaped by previous generations of massive stars." @default.
- W1978677142 created "2016-06-24" @default.
- W1978677142 creator A5017413105 @default.
- W1978677142 creator A5024068537 @default.
- W1978677142 creator A5032329926 @default.
- W1978677142 creator A5039093835 @default.
- W1978677142 creator A5044734424 @default.
- W1978677142 creator A5057700015 @default.
- W1978677142 date "2014-05-09" @default.
- W1978677142 modified "2023-10-12" @default.
- W1978677142 title "THE ONSET OF MASSIVE STAR FORMATION: THE EVOLUTION OF TEMPERATURE AND DENSITY STRUCTURE IN AN INFRARED DARK CLOUD" @default.
- W1978677142 cites W1528320834 @default.
- W1978677142 cites W1557506597 @default.
- W1978677142 cites W1969824388 @default.
- W1978677142 cites W1975633338 @default.
- W1978677142 cites W1982241805 @default.
- W1978677142 cites W1983612735 @default.
- W1978677142 cites W1988977509 @default.
- W1978677142 cites W1989282130 @default.
- W1978677142 cites W1994233824 @default.
- W1978677142 cites W2005543297 @default.
- W1978677142 cites W2006426281 @default.
- W1978677142 cites W2015798493 @default.
- W1978677142 cites W2027367502 @default.
- W1978677142 cites W2031778057 @default.
- W1978677142 cites W2032417424 @default.
- W1978677142 cites W2043771047 @default.
- W1978677142 cites W2044019299 @default.
- W1978677142 cites W2049095523 @default.
- W1978677142 cites W2052491072 @default.
- W1978677142 cites W2055337526 @default.
- W1978677142 cites W2057634812 @default.
- W1978677142 cites W2058088756 @default.
- W1978677142 cites W2059674272 @default.
- W1978677142 cites W2066869552 @default.
- W1978677142 cites W2067524825 @default.
- W1978677142 cites W2067694347 @default.
- W1978677142 cites W2068269125 @default.
- W1978677142 cites W2069208947 @default.
- W1978677142 cites W2069974857 @default.
- W1978677142 cites W2071149024 @default.
- W1978677142 cites W2071571611 @default.
- W1978677142 cites W2082769498 @default.
- W1978677142 cites W2082771884 @default.
- W1978677142 cites W2083004552 @default.
- W1978677142 cites W2084060774 @default.
- W1978677142 cites W2096875730 @default.
- W1978677142 cites W210498976 @default.
- W1978677142 cites W2106563193 @default.
- W1978677142 cites W2110910225 @default.
- W1978677142 cites W2113824462 @default.
- W1978677142 cites W2115119783 @default.
- W1978677142 cites W2116513663 @default.
- W1978677142 cites W2119747781 @default.
- W1978677142 cites W2119967804 @default.
- W1978677142 cites W2121659150 @default.
- W1978677142 cites W2131664422 @default.
- W1978677142 cites W2135536375 @default.
- W1978677142 cites W2156271110 @default.
- W1978677142 cites W2156658280 @default.
- W1978677142 cites W2159407551 @default.
- W1978677142 cites W2963102747 @default.
- W1978677142 cites W3098572930 @default.
- W1978677142 cites W3098593440 @default.
- W1978677142 cites W3099244088 @default.
- W1978677142 cites W3099492531 @default.
- W1978677142 cites W3100106758 @default.
- W1978677142 cites W3100148325 @default.
- W1978677142 cites W3100167798 @default.
- W1978677142 cites W3100821791 @default.
- W1978677142 cites W3100899616 @default.
- W1978677142 cites W3100970929 @default.
- W1978677142 cites W3101186566 @default.
- W1978677142 cites W3101536651 @default.
- W1978677142 cites W3101916937 @default.
- W1978677142 cites W3102598696 @default.
- W1978677142 cites W3102782096 @default.
- W1978677142 cites W3103097675 @default.
- W1978677142 cites W3103383304 @default.
- W1978677142 cites W3103595623 @default.
- W1978677142 cites W3104170562 @default.
- W1978677142 cites W3104199804 @default.
- W1978677142 cites W3104530945 @default.
- W1978677142 cites W3104873745 @default.
- W1978677142 cites W3105094438 @default.
- W1978677142 cites W3105255565 @default.
- W1978677142 cites W3105325670 @default.
- W1978677142 cites W3105407663 @default.
- W1978677142 cites W3105930256 @default.
- W1978677142 cites W3125307563 @default.
- W1978677142 cites W4241435832 @default.
- W1978677142 cites W4293257072 @default.
- W1978677142 cites W4297676536 @default.
- W1978677142 cites W2040473837 @default.
- W1978677142 doi "https://doi.org/10.1088/0004-637x/787/2/113" @default.
- W1978677142 hasPublicationYear "2014" @default.
- W1978677142 type Work @default.
- W1978677142 sameAs 1978677142 @default.