Published September 8, 2017
| Version Published
Journal Article
Open
Spitzer observations of large amplitude variables in the LMC and IC 1613
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1.
University of Cape Town
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2.
California Institute of Technology
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3.
Goddard Space Flight Center
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4.
University of Maryland, College Park
Abstract
The 3.6 and 4.5 µm characteristics of asymptotic giant branch variables in the LMC and IC 1613 are discussed. For C-rich Mira variables there is a very clear periodluminosity-colour relation, where the [3.6] . [4.5] colour is associated with the amount of circumstellar material and correlated with the pulsation amplitude. The [4.5] periodluminosity relation for dusty stars is approximately one mag brighter than for their naked counterparts with comparable periods.
Additional Information
© 2017 The Authors, published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Published online: 8 September 2017. This work makes use of VizieR, the CDS catalogue service, and the TOPCAT ([12]) data processing package. PAW acknowledges the receipt of a research grant from the South African National Research Foundation (NRF).Attached Files
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Additional details
Identifiers
- Eprint ID
- 85401
- Resolver ID
- CaltechAUTHORS:20180321-130648156
Funding
- South African National Research Foundation
Dates
- Created
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2018-03-26Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field