A transition starting from a thermally populated vibrationally excited state. Its intensity depends on the lower-state population through the Boltzmann distribution. Anharmonicity and coupling between normal modes can shift it away from the corresponding vibrational fundamental.
The term "hot band" can refer to different concepts depending on the context: 1. **Music**: In the music industry, a "hot band" typically refers to a musical group that is currently very popular or trending. These bands often receive a lot of media attention, sell out shows, and have a strong following. They could span various genres, including rock, pop, hip hop, and more.
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