... A planetary nebula forms after an aging, low-massstar swells to become a "red giant" and blows off some of its outer layers of ... The current theoretical models do not predict such fast evolution for low-massstars like that of the Stingray nebula." ...
... HII and hot dust emission around young massivestars in G9:62 + 0:19 Leonardo Testi ... first stages of evolution of a young massivestar, the source may be observable at K ...
... HCs are believed to host young forming massivestars which have been suggested to be ... The importance of the study of highmassstar forma tion derives from the close ...
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Ссылки http://www.arcetri.astro.it/~lt/preprints/g29g31/maxia.ps.gz -- 386.4 Кб -- 11.09.2007 Похожие документы
... associata (Premio Tacchini) Stars having initial masses between 7-11 M0 (so-called Super-AGB stars) fill the gap between "intermediate-mass'' stars unable to ignite core C-burning and "massive'' stars able to evolve through all nuclear burning stages ...
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Ссылки http://www.arcetri.astro.it/~sait07/materiainterstellare.pdf -- 58.9 Кб -- 14.05.2007 Похожие документы
... Big Bang material, should have unusually massivestars (a topheavy IMF), with ... The very massive PopIII stars would then produce a short phase of unusually hard and ...
... trace the earliest evolutionary phases of massivestars, much before the onset of an ... thus the ideal indicators of the youngest massivestars which have not yet swept out ... that the bulk of the emission from the youngest massivestars is expected ...
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Ссылки http://www.arcetri.astro.it/~lt/preprints/p45maser/p45maser.ps.gz -- 74.0 Кб -- 11.09.2007 Похожие документы
... is the search for rocky planets with habitable conditions around low-massstars ... down to a few Earth masses) around low massstars by means of accurate (few m/s ... mass, rocky planets around cool low-massstars which are too red for being observed ...
... evidence of disk-jet systems is found in high-massstar-forming regions ... context of star formation, high-massstars are commonly defined as those exceeding 8 ... questioning the possibility that high-massstars can form through (disk) accretion ...
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Ссылки http://www.arcetri.astro.it/science/starform/preprints/cesa_23.pdf -- 493.9 Кб -- 16.11.2012 Похожие документы
... STScI-PRC99-12 MULTIPLE GENERATIONS OF STARS IN THE TARANTULA NEBULA In the most active starburst region in the local universe lies a cluster of brilliant, massivestars, known to astronomers as Hodge 301. ...