SIMBAD references

2022AJ....164..104R - Astron. J., 164, 104 (2022/September-0)

A Tendency Toward Alignment in Single-star Warm-Jupiter Systems.

RICE M., WANG S., WANG X.-Y., STEFANSSON G., ISAACSON H., HOWARD A.W., LOGSDON S.E., SCHWEIKER H., DAI F., BRINKMAN C., GIACALONE S. and HOLCOMB R.

Abstract (from CDS):

The distribution of spin-orbit angles for systems with wide-separation, tidally detached exoplanets offers a unique constraint on the prevalence of dynamically violent planetary evolution histories. Tidally detached planets provide a relatively unbiased view of the primordial stellar obliquity distribution, as they cannot tidally realign within the system lifetime. We present the third result from our Stellar Obliquities in Long-period Exoplanet Systems (SOLES) survey: a measurement of the Rossiter-McLaughlin effect across two transits of the tidally detached warm Jupiter TOI-1478 b with the WIYN/NEID and Keck/HIRES spectrographs, revealing a sky-projected spin-orbit angle $\lambda ={6.2}_{-5.5}^{+5.9^\circ} $. Combining this new measurement with the full set of archival obliquity measurements, including two previous constraints from the SOLES survey, we demonstrate that, in single-star systems, tidally detached warm Jupiters are preferentially more aligned than closer-orbiting hot Jupiters. This finding has two key implications: (1) planets in single-star systems tend to form within aligned protoplanetary disks, and (2) warm Jupiters form more quiescently than hot Jupiters, which, in single-star systems, are likely perturbed into a misaligned state through planet-planet interactions in the post-disk-dispersal phase. We also find that lower-mass Saturns span a wide range of spin-orbit angles, suggesting a prevalence of planet-planet scattering and/or secular mechanisms in these systems.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Planetary alignment - Exoplanet dynamics - Exoplanet evolution - Star-planet interactions - Exoplanets - Planetary theory - Exoplanet systems - Exoplanet astronomy - Planetary dynamics - Hot Jupiters - Protoplanetary disks

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 105

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2022AJ....164..104R and select 'bookmark this link' or equivalent in the popup menu


2023.01.31-11:39:43

© Université de Strasbourg/CNRS

    • Contact