SIMBAD references

2018AJ....156..197A - Astron. J., 156, 197-197 (2018/November-0)

Stellar Obliquities and Planetary Alignments (SOPA). I. Spin-orbit measurements of three transiting hot Jupiters: WASP-72b, WASP-100b, and WASP-109b.

ADDISON B.C., WANG S., JOHNSON M.C., TINNEY C.G., WRIGHT D.J. and BAYLISS D.

Abstract (from CDS):

We report measurements of the sky-projected spin-orbit angles for three transiting hot Jupiters, two of which are in nearly polar orbits, WASP-100b and WASP-109b, and a third in a low-obliquity orbit, WASP-72b. We obtained these measurements by observing the Rossiter-McLaughlin effect over the course of the transits from high-resolution spectroscopic observations made with the CYCLOPS2 optical fiber bundle system feeding the UCLES spectrograph on the Anglo-Australian Telescope. The resulting sky-projected spin-orbit angles are λ=-7○-12_○+11○^, λ=79○-10_○+19○^, and λ=99○-9_○+10○^ for WASP-72b, WASP-100b, and WASP-109b, respectively. These results suggests that WASP-100b and WASP-109b are on highly inclined orbits tilted nearly 90* from their host star's equator, while the orbit of WASP-72b appears to be well-aligned. WASP-72b is a typical hot Jupiter orbiting a mid-late F star (F7 with Teff = 6250 ± 120 K). WASP-100b and WASP-109b are highly irradiated bloated hot Jupiters orbiting hot early-mid F stars (F2 with Teff = 6900 ± 120 K and F4 with Teff = 6520 ± 140 K), making them consistent with the trends observed for the majority of stars hosting planets on high-obliquity orbits.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): planets and satellites: dynamical evolution and stability - stars: individual: (WASP-72, WASP-100, WASP-109) - techniques: radial velocities

Simbad objects: 15

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2018AJ....156..197A and select 'bookmark this link' or equivalent in the popup menu