A Moving Target—Revising the Mass of Proxima Centauri c

  title={A Moving Target—Revising the Mass of Proxima Centauri c},
  author={G. Fritz Benedict and Barbara E. Mcarthur},
  journal={Research Notes of the AAS},

An Earth-like Stellar Wind Environment for Proxima Centauri c

A new planet has been recently discovered around Proxima Centauri. With an orbital separation of ∼1.44 au and a minimum mass of about , Proxima c is a prime direct imaging target for atmospheric

Revisiting the Space Weather Environment of Proxima Centauri b

Close-in planets orbiting around low-mass stars are exposed to intense energetic photon and particle radiation and harsh space weather. We have modeled such conditions for Proxima Centauri b, a rocky

An Early Catalog of Planet-hosting Multiple-star Systems of Order Three and Higher

We present a catalog (status 2022 July 1) of triple and higher-order systems identified containing exoplanets based on data from the literature, including various analyses. We explore statistical

Line-by-line Velocity Measurements: an Outlier-resistant Method for Precision Velocimetry

We present a new algorithm for precision radial velocity (pRV) measurements, a line-by-line (LBL) approach designed to handle outlying spectral information in a simple but efficient manner. The

The μ Arae Planetary System: Radial Velocities and Astrometry

With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures, we explore the exoplanetary system μ Arae. Our modeling of the radial

Precision Millimeter Astrometry of the α Centauri AB System

Alpha Centauri A is the closest solar-type star to the Sun and offers the best opportunity to find and ultimately to characterize an Earth-sized planet located in its habitable zone. Here, we



Expectations for the confirmation of Proxima c from a long-term radial velocity follow-up

Proxima c, a candidate second planet orbiting Proxima Centauri, was detected with the radial velocity method. The announced long orbital period (5.21$^{+0.26}_{-0.22}$ years), and small

A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 AU

It is shown that the existence of the planet can be ascertained, and its true mass can be determined with high accuracy, by combining Gaia astrometry and radial velocities, and the candidate planet represents a challenge for the models of super-Earth formation and evolution.

HD 202206: A Circumbinary Brown Dwarf System

Using Hubble Space Telescope Fine Guidance Sensor astrometry and previously published radial velocity measures, we explore the exoplanetary system HD 202206. Our modeling results in a parallax,

Astrometry with Hubble Space Telescope Fine Guidance Sensors—A Review

Over the last 20 years, Hubble Space Telescope Fine Guidance Sensor interferometric astrometry has produced precise and accurate parallaxes of astrophysical interesting stars and mass estimates for


We present a mass–luminosity relation (MLR) for red dwarfs spanning a range of masses from 0.62 to the end of the stellar main sequence at 0.08 . The relation is based on 47 stars for which dynamical

Interferometric Astrometry of Proxima Centauri and Barnard's Star Using HUBBLE SPACE TELESCOPE Fine Guidance Sensor 3: Detection Limits for Substellar Companions

We report on a substellar-companion search utilizing interferometric fringe-tracking astrometry acquired with Fine Guidance Sensor 3 on the Hubble Space Telescope. Our targets were Proxima Centauri