The UHH Research Park includes the headquarters for the East Asian Observatory, the Caltech Submillimeter Observatory, Subaru, Gemini, UKIRT, the Smithsonian Submillimeter Array and the Institute for Astronomy, plus the astronomers at the University of Hawaii at Hilo. We are one of the major centres for astronomy in the world and encourage all visitors to the JCMT to take advantage of the proximity of these institutes, and give a seminar while in Hilo. Your talk will be advertised at each of the above institutes.

Most Recent Seminar: July 7th, 2017, 2pm (HST)

Investigating Dense Gas and Star Formation at Different Scales: from Milky Way Molecular Clouds to the GMCs of the Antennae Galaxies (NGC 4038/39)

Location: EAO Office, Hilo

Ashley Bemis, McMaster University, Canada

We explore the relationship between dense gas and star formation on a range of physical scales. This range includes individual cores that will go on to form single stellar systems and extends out to giant molecular complexes consisting of hundreds or thousands of such cores within nearby galaxies. We focus on the Antennae system, a nearby galaxy merger, which presents an extreme environment of star formation. We study the relationship between dense gas and star formation in the Antennae galaxies by comparing emission of dense gas tracers, HCN, HCO+, and HNC, from high-resolution ALMA observations to 70-μm infrared observations taken with Herschel PACS. We compare these results to that of nearby molecular clouds, including preliminary results of the Aquila Molecular Complex using JCMT HCN(4-3) data. Combining these results with work on nearby giant molecular clouds in the Milky Way allows us to calibrate observational tracers used to understand the relationship between star formation and dense gas in extragalactic systems.

Where and How:

EAO seminars are (usually) held in the second floor conference room at the East Asia Observatory, 660 N. A’ohoku Place, Hilo, Hawaii. Please note that access to EAO is possible only through the main entrance (through the side doors facing Subaru).

If you would like to view the seminar via Polycom, please contact the helpdesk well in advance of the talk and we will make sure it’s switched on!

Our Polycom contact details are available on request.

The EAO phone number is: (808) 961-3756. A full list of past seminar speakers can be found here for 2017, here for 2016 and here for 2015. These pages also contain links to PDF copies of the seminar slides, where available.

To join the Seminar e-mail list:

EAO Seminars are sent out via If you wish to join this seminar list please send an e-mail to

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