# GJ 273: on the formation, dynamical evolution, and habitability of a planetary system hosted by an M dwarf at 3.75 parsec

@article{Pozuelos2020GJ2O,
title={GJ 273: on the formation, dynamical evolution, and habitability of a planetary system hosted by an M dwarf at 3.75 parsec},
author={Francisco J. Pozuelos and Juan Carlos Su'arez and Gonzalo C. de El{\'i}a and Z. M. Berdi{\~n}as and Andrea Bonfanti and A. Dugaro and Micha{\"e}l Gillon and Emmanuel Jehin and Maximilian N. G{\"u}nther and Val{\'e}rie Van Grootel and L. J. Garcia and Antoine Thuillier and Laetitia Delrez and Josep Ruiz Rodon},
journal={arXiv: Earth and Planetary Astrophysics},
year={2020}
}
Planets orbiting low-mass stars such as M dwarfs are now considered a cornerstone in the search for life-harbouring planets. GJ273 is a planetary system orbiting an M dwarf only 3.75 pc away, composed of two confirmed planets, GJ273b and GJ273c, and two promising candidates, GJ273d and GJ273e. Planet GJ273b resides in the habitable zone. Currently, due to a lack of observed planetary transits, only the minimum masses of the planets are known.Despite being an interesting system, the GJ273…
8 Citations

## Figures and Tables from this paper

Could the Migration of Jupiter Have Accelerated the Atmospheric Evolution of Venus?
• Physics, Environmental Science
• 2020
In the study of planetary habitability and terrestrial atmospheric evolution, the divergence of surface conditions for Venus and Earth remains an area of active research. Among the intrinsic and
SPECULOOS: Ultracool dwarf transit survey
One of the most promising avenues for the detailed study of temperate Earth-sized exoplanets is the detection of such planets in transit in front of stars small and nearby enough to make possible
A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266
We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright (K = 8.8), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the planetary nature of
Risks for Life on Proxima b from Sterilizing Impacts
• Physics, Geology
The Planetary Science Journal
• 2020
We consider the implications that a debris belt located between Proxima b and Proxima c would pose for the rate of large asteroid impacts that could sterilize Proxima b from life. Future observations
A search for transiting planets around hot subdwarfs
Context. Hot subdwarfs experienced strong mass loss on the Red Giant Branch (RGB) and are now hot and small He-burning objects. Such stars constitute excellent opportunities to address the question
GTC/CanariCam Deep Mid-infrared Imaging Survey of Northern Stars within 5 pc
In this work we present the results of a direct imaging survey for brown dwarf companions around the nearest stars at the mid-infrared 10 micron range (λ c = 8.7 μm, Δλ = 1.1 μm) using the CanariCam
Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS
Laetitia Delrez, David Ehrenreich, Yann Alibert, Andrea Bonfanti, Luca Borsato, Luca Fossati, Matthew J. Hooton, Sergio Hoyer, Francisco J. Pozuelos, Sébastien Salmon, Sophia Sulis, Thomas G. Wilson,
Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey
We announce the discovery of GPX-1b, a transiting brown dwarf with a mass of $19.7\pm 1.6$ $M_{\mathrm{Jup}}$ and a radius of $1.47\pm0.10$ $R_{\mathrm{Jup}}$, the first sub-stellar object discovered

## References

SHOWING 1-10 OF 200 REFERENCES
The HARPS search for southern extra-solar planets XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293
Context. Low mass stars are currently the best targets for searches for rocky planets in the habitable zone of their host star. Over the last 13 years, precise radial velocities measured with the
Formation, tidal evolution and habitability of the Kepler-186 system
The Kepler-186 system consists of ve planets orbiting an early M dwarf. The planets have physical radii of 1.0{1.50 R and orbital periods of 4{130 days. The 1:1R Kepler-186f with a period of 130 days
The Habitability of Planets Orbiting M-dwarf Stars
• Physics
• 2016
The prospects for the habitability of M-dwarf planets have long been debated, due to key differences between the unique stellar and planetary environments around these low-mass stars, as compared to
THERMAL-ORBITAL COUPLED TIDAL HEATING AND HABITABILITY OF MARTIAN-SIZED EXTRASOLAR PLANETS AROUND M STARS
• Physics
• 2014
M-type stars are good targets in the search for habitable extrasolar planets. Due to their low effective temperatures, the habitable zone of M stars is very close to the stars themselves. For planets
The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the h
We present radial velocity (RV) measurements of our sample of 40 M dwarfs from our planet search programme with VLT+UVES begun in 2000. Although with our RV precision down to 2–2.5 m/s and timebase
The Effect of Orbital Configuration on the Possible Climates and Habitability of Kepler-62f
• Physics, Medicine
Astrobiology
• 2016
Simulations with version 4 of the Community Climate System Model and the 3-D Laboratoire de Météorologie Dynamique Generic global climate model indicate that the surface habitability of this planet is sensitive to orbital configuration.
RedDots: a temperate 1.5 Earth-mass planet candidate in a compact multiterrestrial planet system around GJ 1061
Abstract Small low-mass stars are favourable targets for the detection of rocky habitable planets. In particular, planetary systems in the solar neighbourhood are interesting and suitable for precise
Terrestrial planets in high-mass disks without gas giants
• Physics
• 2013
Context. Observational and theoretical studies suggest that planetary systems consisting only of rocky planets are probably the most common in the Universe. Aims. We study the potential habitability
Formation of solar system analogues – I. Looking for initial conditions through a population synthesis analysis
• Physics
• 2017
Population synthesis models of planetary systems developed during the last $\sim$15 years could reproduce several of the observables of the exoplanet population, and also allowed to constrain
Mercury-T: A new code to study tidally evolving multi-planet systems. Applications to Kepler-62
• Physics
• 2015
A large proportion of observed planetary systems contain several planets in a compact orbital configuration, and often harbor at least one close-in object. These systems are then most likely tidally