6533b829fe1ef96bd128a53b
RESEARCH PRODUCT
Searching for low mass objects around nearby dMe radio stars
J. C. GuiradoE. RosD. L. JonesW. AlefJ. M. MarcaideR. A. Prestonsubject
Astrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysics::Galaxy Astrophysicsdescription
Nearby M-dwarfs are best suited for searches of low mass companions. VLBI phase-referencing observations with sensitive telescopes are able to detect radio star flux-densities of tenths of mJy as well as to position the star on the sky with submilliarcsecond precision. We have initiated a long-term observational program, using EVN telescopes in combination with NASA DSN dishes, to revisit the kinematics of nearby, single M dwarfs. The precision of the astrometry allows us to search for possible companions with masses down to 1 Jupiter mass. In this contribution we report preliminary results of the first observation epochs, in which we could detect some of the radio stars included in our program.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-07-01 |