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  Detecting free-floating planets using water-dependent colour terms in the next generation of infrared space-based surveys

Deacon, N. R. (2018). Detecting free-floating planets using water-dependent colour terms in the next generation of infrared space-based surveys. Monthly Notices of the Royal Astronomical Society, 481, 447-451.

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Deacon, N. R.1, Author
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1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: surveys brown dwarfs infrared: stars Astrophysics - Earth and Planetary Astrophysics
 Abstract: The next decade will see two large-scale space-based near-infrared surveys, Euclid and WFIRST. This paper shows that the subtle differences between the filters proposed for these surveys and those from ground- based photometric systems will produce a ground-space colour term that is dependent on water absorption in the spectra of astronomical objects. This colour term can be used to identify free-floating planets in star- forming regions, mimicking a successful ground-based technique that uses a filter sensitive to water absorption. This paper shows that this colour term is an effective discriminant between reddened background stars and ultracool dwarfs. This represents just one science justification for a Galactic Plane survey in the event of an extension to the Euclid mission beyond its original time frame.

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 Dates: 2018
 Publication Status: Issued
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Title: Monthly Notices of the Royal Astronomical Society
Source Genre: Journal
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Pages: - Volume / Issue: 481 Sequence Number: - Start / End Page: 447 - 451 Identifier: -