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A new method to derive star formation histories in dwarf galaxies

Published online by Cambridge University Press:  30 October 2019

Marius Čeponis
Affiliation:
Center for Physical Sciences and Technology, Saulėtekis av. 3, 10257 Vilnius, Lithuania email: marius.ceponis@ftmc.lt
Rima Stonkutė
Affiliation:
Center for Physical Sciences and Technology, Saulėtekis av. 3, 10257 Vilnius, Lithuania email: marius.ceponis@ftmc.lt Astronomical Observatory of Vilnius University, M. K. Čiurlionis st. 29, 03100 Vilnius, Lithuania email: vladas.vansevicius@ff.vu.lt
Vladas Vansevičius
Affiliation:
Center for Physical Sciences and Technology, Saulėtekis av. 3, 10257 Vilnius, Lithuania email: marius.ceponis@ftmc.lt Astronomical Observatory of Vilnius University, M. K. Čiurlionis st. 29, 03100 Vilnius, Lithuania email: vladas.vansevicius@ff.vu.lt
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Abstract

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We present a new method to derive 2D star formation histories in dwarf irregular galaxies. Based on multicolor stellar photometry data we have found that in the Leo A galaxy during the last ∽400 Myr star formation was propagating according to the inside-out scenario. Star-forming regions have spread strongly asymmetrically from the center and their present day distribution correlates well with the Hi surface density maps.

Type
Contributed Papers
Copyright
© International Astronomical Union 2019 

References

Cole, A. A., Skillman, E. D., Tolstoy, E., et al . 2007, ApJ, 659, L17 CrossRefGoogle Scholar
Dolphin, A. E. 2002, MNRAS, 332, 91 CrossRefGoogle Scholar
Hunter, D. A., Ficut-Vicas, D., Ashley, T., et al . 2012, AJ, 144, 29 CrossRefGoogle Scholar
Kroupa, P. 2001, MNRAS, 322, 231 CrossRefGoogle Scholar
Marigo, P., Girardi, L., Bressan, A., et al . 2017, ApJ, 835, 77 CrossRefGoogle Scholar
Stonkutė, R., Arimoto, N., Hasegawa, T., et al . 2014, ApJS, 214, 19 CrossRefGoogle Scholar
Stonkutė, R., & Vansevičius, V. 2015, Baltic Astronomy, 24, 314 Google Scholar
Vansevičius, V., Arimoto, N., Hasegawa, T., et al . 2004, ApJL, 611, L93 CrossRefGoogle Scholar