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A double cluster at the core of 30 Doradus

Sabbi, E, Lennon, DJ, Gieles, M, Mink, SED, Walborn, NR, Anderson, J, Bellini, A, Panagia, N and Apellaniz, JM (2012) A double cluster at the core of 30 Doradus 2012, ApJ 754, L37.

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Based on an analysis of data obtained with the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) we report the identification of two distinct stellar populations in the core of the giant HII region 30Doradus in the Large Magellanic Cloud. The most compact and richest component coincides with the center of R136 and is ~1 Myr younger than a second more diffuse clump, located ~5.4 pc toward the northeast. We note that published spectral types of massive stars in these two clumps lend support to the proposed age difference. The morphology and age difference between the two sub-clusters suggests that an ongoing merger may occurring within the core of 30Doradus. This finding is consistent with the predictions of models of hierarchical fragmentation of turbulent giant molecular clouds, according to which star clusters would be the final products of merging smaller sub-structures.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Sabbi, E
Lennon, DJ
Mink, SED
Walborn, NR
Anderson, J
Bellini, A
Panagia, N
Apellaniz, JM
Date : 15 August 2012
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:40
Last Modified : 24 Jan 2020 22:39

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