Počet záznamů: 1
Globular Cluster formation in a collapsing supershell
- 1.
SYSNO ASEP 0484220 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Globular Cluster formation in a collapsing supershell Author(s) Recchi, S. (IT)
Wünsch, Richard (ASU-R) RID, ORCID
Palouš, Jan (ASU-R) RID, ORCID
Dinnbier, F. (CZ)Source Title Astrophysics and Space Science - ISSN 0004-640X
Roč. 362, č. 10 (2017), 10/12-10/12Number of pages 12 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords dark age ; reionization ; first stars Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) R&D Projects GA15-06012S GA ČR - Czech Science Foundation (CSF) Institutional support ASU-R - RVO:67985815 UT WOS 000411111800002 EID SCOPUS 85028714644 DOI https://doi.org/10.1007/s10509-017-3165-1 Annotation We simulate, by means of a 1-D Eulerian hydrocode, the early evolution of the primordial cloud after the hypernova explosion, the formation of SSSs, and the following evolution, once the SSSs start to release energy and heavy elements into the interstellar medium. Our results indicate that a shell, enriched with nucleosynthetic products from SSSs, propagates inwards, towards the center of the primordial cloud. In a time span of a few Myr, this inward-propagating shell reaches a distance of only a few parsec away from the center of the primordial cloud. Its density is extremely high and its temperature very low, thus the conditions for a new episode of star formation are achieved. We study what fraction of these two distinct populations of stars can remain bound and survive until the present day. We study also under what conditions can this process repeat and form multiple stellar populations. We extensively discuss whether the proposed scenario can help to explain some open questions of the formation mechanism of globular clusters. Workplace Astronomical Institute Contact Anežka Melichárková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2018
Počet záznamů: 1