de Grijs, R. and Goodwin, S.P. (2008) Star cluster 'infant mortality' in the Small Magellanic Cloud (Redivivus). Monthly Notices of the Royal Astronomical Society, 383 (3). pp. 1000-1006. ISSN 0035-8711
Abstract
The early evolution of star clusters in the Small Magellanic Cloud (SMC) has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase (referred to as ‘infant mortality’). Here, we take a fresh approach to the problem, using an independent, homogeneous data set of UBVR imaging observations, from which we obtain the SMC's cluster age and mass distributions in a self-consistent manner. We conclude that the (optically selected) SMC star cluster population has undergone at most ∼30 per cent (1σ) infant mortality between the age range from about (3–10) Myr, to that of approximately (40–160) Myr. We rule out a 90 per cent cluster mortality rate per decade of age (for the full age range up to 109 yr) at a >6σ level. We independently affirm this scenario based on the age distribution of the SMC cluster sample.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2008 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Keywords: | stellar dynamics; globular clusters : general; open clusters and associations : general; Magellanic Clouds; galaxies : star clusters |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Feb 2018 11:58 |
Last Modified: | 16 Feb 2018 11:58 |
Published Version: | https://doi.org/10.1111/j.1365-2966.2007.12509.x |
Status: | Published |
Publisher: | Oxford University Press |
Refereed: | Yes |
Identification Number: | 10.1111/j.1365-2966.2007.12509.x |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:127507 |