On the Appearance of Terrestrial Planets in Formation: EmergentNear-Infrared Spectra of Hot Proto-planet Collision Afterglows

Details On the Appearance of Terrestrial Planets in Formation: EmergentNear-Infrared Spectra of Hot Proto-planet Collision Afterglows On the Appearance of Terrestrial Planets in Formation: EmergentNear-Infrared Spectra of Hot Proto-planet Collision Afterglows

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340302m&link_type=abstract

American Astronomical Society, AAS Meeting #213, #403.02; Bulletin of the American Astronomical Society, Vol. 41, p.194

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary calculations concerning plausible emergent spectra that could be observed from terrestrial and super-Earth protoplanets during their collisional formation. While such collisions are rare, current work suggests that the surfaces of these bodies may remain above 800 K for up to millions of years during the epoch of their formation 10-100 Myr. Such molten protoplanets are luminous enough in the thermal infrared to permit detection with current instrumentation provided the atmosphere of the forming planet allow astronomers to observe the brightness temperature of the molten surface. Assuming a range of protoplanet masses, surface temperatures, and atmospheric properties, we explore the diversity of emergent spectra expected for such bodies. It appears that under the range of parameters investigated, hot protoplanet collision remnants are observable with current and future ground- and space-based telescopes. Details concerning this work can be found in Miller-Ricci et al. (2009).

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