Evidence from the solar system suggests that, unlike Venus and Mars, the
presence of a strong magnetic dipole moment on Earth has helped maintain liquid
water on its surface. Therefore, planetary magnetism could have a significant
effect on the long-term maintenance of atmosphere and liquid water on rocky
exoplanets. We use Olson and Christensen's (2006) model to estimate magnetic
dipole moments of rocky exoplanets with radii R$_p$ $łe$ 1.23 R$_øplus$.
Even when modelling maximum magnetic dipole moments, only Kepler-186 f has a
magnetic dipole moment larger than the Earth's, while approximately half of
rocky exoplanets detected in the circumstellar habitable zone have a negligible
magnetic dipole moment. This suggests that planetary magnetism is an important
factor when prioritizing observations of potentially habitable planets.
Description
Planetary Magnetism as a Parameter in Exoplanet Habitability
%0 Generic
%1 mcintyre2019planetary
%A McIntyre, Sarah R. N.
%A Lineweaver, Charles H.
%A Ireland, Michael J.
%D 2019
%K and habitability magnetism planetary
%R 10.1093/mnras/stz667
%T Planetary Magnetism as a Parameter in Exoplanet Habitability
%U http://arxiv.org/abs/1903.03123
%X Evidence from the solar system suggests that, unlike Venus and Mars, the
presence of a strong magnetic dipole moment on Earth has helped maintain liquid
water on its surface. Therefore, planetary magnetism could have a significant
effect on the long-term maintenance of atmosphere and liquid water on rocky
exoplanets. We use Olson and Christensen's (2006) model to estimate magnetic
dipole moments of rocky exoplanets with radii R$_p$ $łe$ 1.23 R$_øplus$.
Even when modelling maximum magnetic dipole moments, only Kepler-186 f has a
magnetic dipole moment larger than the Earth's, while approximately half of
rocky exoplanets detected in the circumstellar habitable zone have a negligible
magnetic dipole moment. This suggests that planetary magnetism is an important
factor when prioritizing observations of potentially habitable planets.
@misc{mcintyre2019planetary,
abstract = {Evidence from the solar system suggests that, unlike Venus and Mars, the
presence of a strong magnetic dipole moment on Earth has helped maintain liquid
water on its surface. Therefore, planetary magnetism could have a significant
effect on the long-term maintenance of atmosphere and liquid water on rocky
exoplanets. We use Olson and Christensen's (2006) model to estimate magnetic
dipole moments of rocky exoplanets with radii R${}_{p}$ $\le$ 1.23 R$_\oplus$.
Even when modelling maximum magnetic dipole moments, only Kepler-186 f has a
magnetic dipole moment larger than the Earth's, while approximately half of
rocky exoplanets detected in the circumstellar habitable zone have a negligible
magnetic dipole moment. This suggests that planetary magnetism is an important
factor when prioritizing observations of potentially habitable planets.},
added-at = {2019-08-09T22:34:36.000+0200},
author = {McIntyre, Sarah R. N. and Lineweaver, Charles H. and Ireland, Michael J.},
biburl = {https://www.bibsonomy.org/bibtex/233b80b0afcb472cb63670ad8bf7a3903/ericblackman},
description = {Planetary Magnetism as a Parameter in Exoplanet Habitability},
doi = {10.1093/mnras/stz667},
interhash = {8d67aff49c0226f32ffa926c14ccca72},
intrahash = {33b80b0afcb472cb63670ad8bf7a3903},
keywords = {and habitability magnetism planetary},
note = {cite arxiv:1903.03123Comment: Accepted for publication in MNRAS, 14 pages, 4 figures},
timestamp = {2019-08-09T22:34:36.000+0200},
title = {Planetary Magnetism as a Parameter in Exoplanet Habitability},
url = {http://arxiv.org/abs/1903.03123},
year = 2019
}