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Paper IPM / Astronomy / 14343

School of Astronomy

Title:

Pulsating red giants and supergiants as probes of galaxy formation and evolution

Author(s):

1 .	J.Th. van Loon
2 .	A. Javadi
3 .	H.G. Khosroshahi
4 .	S. Rezaei
5 .	R. Golshan
6 .	M. Saberi

Status:

Published

Journal:

IAU

Year:

2015

Supported by:

IPM

Abstract:

We have developed new techniques to use pulsating red giant and supergiants stars to reconstruct the star formation history of galaxies over cosmological time, as well as using them to map the dust production across their host galaxies. We describe the large programme on the Local Group spiral galaxy Triangulum (M33), which we have monitored at near-infrared wavelengths for several years using the United Kingdom InfraRed Telescope in Hawai'i. We outline the methodology and present the results for the central square kiloparsec (Javadi et al. 2011a,b, 2013) and - fresh from the press - the disc of M33 (Javadi et al. 2015, and in preparation). We also describe the results from our application of this new technique to other nearby galaxies: the Magellanic Clouds (published in Rezaei et al. 2014), the dwarf galaxies NGC 147 and 185 (Golshan et al. in preparation), and Centaurus A.

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