SIMBAD references

2014ApJ...783L..29L - Astrophys. J., 783, L29 (2014/March-2)

Near-IR direct detection of water vapor in Tau Bootis b.

LOCKWOOD A.C., JOHNSON J.A., BENDER C.F., CARR J.S., BARMAN T., RICHERT A.J.W. and BLAKE G.A.

Abstract (from CDS):

We use high dynamic range, high-resolution L-band spectroscopy to measure the radial velocity (RV) variations of the hot Jupiter in the τ Boötis planetary system. The detection of an exoplanet by the shift in the stellar spectrum alone provides a measure of the planet's minimum mass, with the true mass degenerate with the unknown orbital inclination. Treating the τ Boo system as a high flux ratio double-lined spectroscopic binary permits the direct measurement of the planet's true mass as well as its atmospheric properties. After removing telluric absorption and cross-correlating with a model planetary spectrum dominated by water opacity, we measure a 6σ detection of the planet at Kp= 111±5 km/s, with a 1σ upper limit on the spectroscopic flux ratio of 10–4. This RV leads to a planetary orbital inclination of i = 45–4+3° and a mass of MP = 5.90–20+0.35MJup. We report the first detection of water vapor in the atmosphere of a non-transiting hot Jupiter, τ Boo b.

Abstract Copyright:

Journal keyword(s): planets and satellites: atmospheres - techniques: spectroscopic

Simbad objects: 5

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2019.10.21-21:06:18

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