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| Paper: |
High-Resolution Sub/millimeter Observations of Mergers and Luminous Galaxy Nuclei |
| Volume: |
477, Galaxy Mergers in an Evolving Universe |
| Page: |
21 |
| Authors: |
Sakamoto, K. |
| Abstract: |
I present recent high-resolution submillimeter and millimeter observations of molecular gas
and dust in some mergers, luminous galaxy nuclei, and possible mergers.
Such observations tell us the behavior and properties of interstellar medium in merger nuclei.
For example, the gas sometimes makes a mini disk around the remnant nucleus,
feeds starburst and/or a massive black hole there, hides such a power source(s) by enveloping it,
and is blown out by the embedded power source.
Even when the power source is completely enveloped and hidden
we can still constrain its physical parameters and nature from
high-resolution (sub)millimeter observations.
The observables include
gas motion such as rotation (hence dynamical mass) and inflow/outflow,
luminosity and luminosity density of the embedded nucleus,
and
mass, temperature, density, chemical composition, and (sometimes unusual) excitation conditions
of gas. |
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