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The destruction of planets by migration into the star will releasesignificant amounts of energy and material, which will present opportunities toobservational study planets in new ways. To observe planet destruction, it isimportant to understand the processes of how this energy and material isreleased as planets are destroyed. It is not known how fast the large amountsof energy and material are released, making it difficult to predict howobservable planet destruction will be. There is a huge amount of energy madeavailable by falling deep into the star's potential well: Simple calculationsshow that many of the currently known "hot Jupiters" can potentially produceevents as luminous as a small nova if the energy is released fast enough. Toobserve these events, the important questions are how will this energy bereleased, and whether the energy will be released rapidly enough to create anevent luminous enough to be found by transient surveys.  Alternatively, if planet destruction is slowed by the inward migrationalternating with periods of outward migration caused by Roche lobe overflow(RLOF), then the primary signature may be the effects of the release of largeamounts of gas. The infall of this gas also may significantly contribute to thesystem's luminosity. The release of planetary gas may be a searchable signatureof planet destruction. Signs of runaway RLOF and outward or alternating RLOFshould be searched for.  Observing planet destruction will provide a new window for study ofexoplanets.

Observing the Luminosity Increase and Roche Lobe Overflow of Planet Destruction