Unbound Close Stellar Encounters in the Solar Neighborhood
@article{Hansen2021UnboundCS, title={Unbound Close Stellar Encounters in the Solar Neighborhood}, author={Brad Hansen}, journal={The Astronomical Journal}, year={2021}, volume={163} }
We present a catalog of unbound stellar pairs, within 100 pc of the Sun, that are undergoing close, hyperbolic, encounters. The data are drawn from the GAIA EDR3 catalog, and the limiting factors are errors in the radial distance and unknown velocities along the line of sight. Such stellar pairs have been suggested to be possible events associated with the migration of technological civilizations between stars. As such, this sample may represent a finite set of targets for a SETI search based…
One Citation
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References
SHOWING 1-10 OF 47 REFERENCES
New stellar encounters discovered in the second Gaia data release
- Physics, GeologyAstronomy & Astrophysics
- 2018
Passing stars may play an important role in the evolution of our solar system. We search for close stellar encounters to the Sun among all 7.2 million stars in Gaia DR2 that have six-dimensional…
The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample
- Physics, Geology
- 2011
Searching for planets around stars with different masses helps us to assess the outcome of planetary formation for different initial conditions. The low-mass M dwarfs are also the most frequent stars…
Stellar and substellar companions of nearby stars from Gaia DR2
- Physics, GeologyAstronomy & Astrophysics
- 2019
Context. The census of stellar and substellar companions of nearby stars is largely incomplete, in particular toward the low-mass brown dwarf and long-period exoplanets. It is, however, fundamentally…
A million binaries from Gaia eDR3: sample selection and validation of Gaia parallax uncertainties
- Physics, Geology
- 2021
We construct from Gaia eDR3 an extensive catalog of spatially resolved binary stars within $\approx$ 1 kpc of the Sun, with projected separations ranging from a few au to 1 pc. We estimate the…
The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades
- Geology, PhysicsThe Astrophysical Journal Supplement Series
- 2021
We present a high-precision radial velocity (RV) survey of 719 FGKM stars, which host 164 known exoplanets and 14 newly discovered or revised exoplanets and substellar companions. This catalog…
The Breakthrough Listen Search for Intelligent Life: Target Selection of Nearby Stars and Galaxies
- Physics, Geology
- 2017
We present the target selection for the Breakthrough Listen search for extraterrestrial intelligence during the first year of observations at the Green Bank Telescope, Parkes Telescope, and Automated…
The SUPERWIDE Catalog: A Catalog of 99,203 Wide Binaries Found in Gaia and Supplemented by the SUPERBLINK High Proper Motion Catalog
- PhysicsThe Astrophysical Journal Supplement Series
- 2020
We present a catalog of 99,203 wide binary systems, initially identified as common proper motion (CPM) pairs from a subset of ∼5.2 million stars with proper motions , selected from Gaia data release…
Comet showers and the steady-state infall of comets from the Oort cloud
- Physics, Geology
- 1981
The appearance of an inner edge to the Oort comet cloud at a semimajor axis of a = (1--2) x 10/sup 4/ AU is an observational artifact. Stellar perturbations are frequent enough and strong enough to…
A Gaia Early DR3 Mock Stellar Catalog: Galactic Prior and Selection Function
- PhysicsPublications of the Astronomical Society of the Pacific
- 2020
A mock stellar catalog, matching in volume, depth and data model the content of the planned Gaia early data release 3 (Gaia EDR3), and highlights a few capabilities of the Astronomy Data Query Language (ADQL) with educative catalog queries.
Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation of Three Planets around Nine Nearby M Dwarfs
- Physics, GeologyThe Astrophysical Journal Supplement Series
- 2020
Zechmeister et al. surveyed 38 nearby M dwarfs from 2000 to 2007 March with VLT2 and the Ultraviolet and Visual Echelle Spectrograph (UVES) spectrometer. These data have recently been reanalyzed,…