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Table 1

Parameters of the super star cluster in our field.

Obs Size Age AK Mass Nion K Reference
Myr mag     ×    106M     ×    1052 s-1 mag

HST  − 4.8a 0.8ab 1.2a  −  − #28 from Table 8 in [1]
Keck + VLT 046c 5.7d  − 4.1e 1.3e 15.2f SSC-C in [2]
VLT/SINFONI 06g  <6 0.4 6.0 4.4eh 15.0f Our work [3]
4.5 6.6i



From the comparison of integrated photometry UBVIHα with population synthesis models,


estimated from measured E(B − V) = 2.20 and assuming RV = 3.1 extinction curve (Weingartner & Draine 2001),


deconvolved FWHM from Lorentzian fit,


based on the Brγ equivalent width as an age indicator comparing it with Starburst99 (Leitherer et al. 2010) models,


not corrected for extinction,


K-band apparent magnitude for an aperture of 2″,


it is unresolved. The angular size (FWHM) measured from a Gaussian fit corresponds to the size of the seeing disk,


from observed Brγ luminosity,


from the fluxes of the [Ne ii] and [Ne iii] lines at 12.81 and 15.56   μm.

References. [1] Whitmore et al. (2010) based on ACS and NICMOS observations, [2] Gilbert & Graham (2007) based on Keck/NIRSPEC-SCAM and VLT/ISAAC observations, [3] for details see Sect. 3.1.

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