Other
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942709k&link_type=abstract
American Astronomical Society, AAS Meeting #219, #427.09
Other
Scientific paper
I will present results showing the state of the art observations of the ionized gas in young star-forming regions in galaxies with extremely high star formation rates. Measuring the density, mass, and kinematics of the ionized gas in these regions tells us about the state of the interstellar medium in young star-forming regions and about the massive stars themselves. Unfortunately, the state of the ionized gas is difficult to determine in the optical due to the high extinction from the remnants of the surrounding natal cocoon of dust and gas. The ionized gas in these obscured regions can be more accurately traced using radio recombination lines (RRLs). RRLs have been difficult to detect in galaxies other than the brightest dozen nearby starburst galaxies because of the limited sensitivity and bandwidth of the previous generation of radio telescopes. RRL observations of fainter and more distant galaxies are now possible with the recent enormous improvements in radio telescope instrumentation. Our RRL observations showcase the power of these revitalized tracers of the ionized gas in young star-forming galaxies.
Balser Dana
Chomiuk Laura
Goss W.
Johnson Kaj
Kepley Amanda A.
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