Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.0701m&link_type=abstract
American Astronomical Society, AAS Meeting #212, #7.01; Bulletin of the American Astronomical Society, Vol. 40, p.197
Astronomy and Astrophysics
Astronomy
Scientific paper
The Herschel Inner Galaxy Gas Survey (HIGGS) is a recently approved Herschel Key Project to investigate the inflow of matter in the bulge of the Milky Way using the HIFI and PACS instruments to observe [CII], [NII], [OI], [OIII], and high-J CO emission lines to determine the relationship between central black holes and their host galactic bulges and thus the causes and mechanisms of starbursts. As Binney et al. (1991) have suggested, the gas in closed orbits in the bar of the Milky Way provides a means to study in detail the accretion processes leading to starbursts and active galactic nuclei. Shocks effectively transfer some fraction of the clouds' orbital kinetic energy into heat which escapes through dust continuum and line emission. By measuring this emission and characterizing the star formation that occurs under these unusual conditions, we can estimate the amount of orbital energy that has been dissipated and constrain estimates of the mass inflow from the decaying orbits.
We're currently looking for collaborators, post-docs, and students to perform additional observations and modeling to enable this exciting comprehensive characterization of gas in the inner galaxy.
Funding for this project has been provided by NASA and time on the Herschel satellite by ESA.
HIGGS Team
Martin Christopher L.
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