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2004MNRAS.352..263D - Mon. Not. R. Astron. Soc., 352, 263-276 (2004/July-3)
CIRPASS near-infrared integral-field spectroscopy of massive star clusters in the starburst galaxy NGC 1140.
DE GRIJS R., SMITH L.J., BUNKER A., SHARP R.G., GALLAGHER III J.S., ANDERS P., LANCON A., O'CONNELL R.W. and PARRY I.R.
Abstract (from CDS):
This scenario is (provisionally) confirmed by our analysis of the spectral energy distributions of the compact, young massive star clusters (YMCs) detected in new and archival broad-band Hubble Space Telescope images. The YMC ages in NGC 1140 are all ≲20Myr, consistent with independently determined estimates of the starburst age of the galaxy, while there appears to be an age difference between the northern and southern YMC complexes in the sense expected from our CIRPASS analysis. Our photometric mass estimates of the NGC 1140 YMCs, likely upper limits, are comparable to those of the highest-mass Galactic globular clusters and to spectroscopically confirmed masses of (compact) YMCs in other starburst galaxies. Our detection of similarly massive YMCs in NGC 1140 supports the scenario that such objects form preferentially in the extreme environments of interacting and starburst galaxies.
Abstract Copyright: 2004 RAS
Journal keyword(s): galaxies: individual: NGC 1140 - galaxies: starburst - galaxies: star clusters - infrared: galaxies
Nomenclature: Fig.1, Table 2: [DSB2004] NN (Nos 1-9, 14-19).
Simbad objects: 30
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