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The stellar population in the dwarf starburst galaxy NGC 1705

Published online by Cambridge University Press:  26 May 2016

Gerardo A. Vázquez ,
Claus Leitherer ,
Duilia de Mello ,
Timothy M. Heckman ,
Gerhardt R. Meurer ,
Crystal L. Martin  and
Kenneth R. Sembach
Gerardo A. Vázquez
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Claus Leitherer
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Duilia de Mello
Affiliation:
Onsala Space Observatory, S-43992 Onsala, Sweden
Timothy M. Heckman
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
Gerhardt R. Meurer
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
Crystal L. Martin
Affiliation:
Department of Astronomy, California Institute of Technology, 1201 East California Blvd., Pasadena, CA 91125, USA
Kenneth R. Sembach
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA

Abstract

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We report preliminary results from high-resolution UV spectroscopy of the super star cluster 1 in the nearby dwarf starburst galaxy NGC 1705, using HST-stis. These new observations can help us to quantify accurately the stellar content in this super cluster. Together with high quality spectra from SMC stars and the evolutionary synthesis code starburst99, we estimate an age for this cluster of 12±3 Myr, in agreement with previous studies. The measured dynamical mass and the theoretical L/M ratio suggest a normal IMF down to the hydrogen-burning limit.

Type
Part 4. Feedback from Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 755 - 756
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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