Interstellar medium conditions in starburst galaxies
Beirão, M.P.L.
Citation
Beirão, M. P. L. (2010, January 13). Interstellar medium conditions in starburst galaxies.
Retrieved from https://hdl.handle.net/1887/14559
Version: Not Applicable (or Unknown)
License: Leiden University Non-exclusive license Downloaded from: https://hdl.handle.net/1887/14559
Note: To cite this publication please use the final published version (if applicable).
Propositions
associated with the thesis
ISM Conditions in Starburst Galaxies
1. PAH abundances in the low density ISM of blue compact dwarf galaxies are un- related to the metallicity of these galaxies.
Chapter 2 2. Negative feedback from supernovae has suppressed star formation in M82 in the
last 5 Myr.
Chapter 3 3. Massive star formation on scales of several kiloparsecs is triggered by radially expanding shock waves resulting from head-on galaxy-galaxy collisions such as Arp 143.
Chapter 4 4. Very small dust grains account for most of sub-millimeter emission in star for-
ming galaxies only when their molecular gas mass is MH2 < 109 M!.
Chapter 5 5. Accurate determinations of PAH band fluxes require the coverage of the whole
mid infrared wavelength range.
6. To accurately determine the age of a starburst, spectral synthesis models need to fit to both far-UV and near-UV fluxes.
7. The number of datapoints in an SED limits the use of realistic SED models.
8. With space telescopes and online databases, astronomers have become sedentary scientists.
9. High-speed internet access widens the gap between people with self control and people without it.
10. There is no correlation between the size of a country and its influence in world history.
Leiden, October 2009 Pedro Beir˜ao
