Skip to main navigation Skip to search Skip to main content

Direct Imaging discovery of a second planet candidate around the possibly transiting planet host CVSO 30

  • T. O. B. Schmidt
  • , R. Neuhäuser
  • , C. Briceño
  • , N. Vogt
  • , St Raetz
  • , A. Seifahrt
  • , C. Ginski
  • , M. Mugrauer
  • , S. Buder
  • , C. Adam
  • , P. H. Hauschildt
  • , S. Witte
  • , Christiane Helling
  • , J. H. M. M. Schmitt

Research output: Contribution to journalArticlepeer-review

Abstract

We surveyed the 25 Ori association for direct-imaging companions. This association has an age of only few million years. Among other targets, we observed CVSO 30, which has recently been identified as the first T Tauri star found to host a transiting planet candidate. We report on photometric and spectroscopic high-contrast observations with the Very Large Telescope, the Keck telescopes, and the Calar Alto observatory. They reveal a directly imaged planet candidate close to the young M3 star CVSO 30. The JHK-band photometry of the newly identified candidate is at better than 1 sigma consistent with late-type giants, early-T and early-M dwarfs, and free-floating planets. Other hypotheses such as galaxies can be excluded at more than 3.5 sigma. A lucky imaging z' photometric detection limit z'= 20.5 mag excludes early-M dwarfs and results in less than 10 MJup for CVSO 30 c if bound. We present spectroscopic observations of the wide companion that imply that the only remaining explanation for the object is that it is the first very young (
Original languageEnglish
Article numberA75
JournalAstronomy & Astrophysics
Volume593
Early online date26 May 2016
DOIs
Publication statusPublished - Sept 2016

Keywords

  • Stars: pre-main sequence
  • Stars: low mass
  • Planetary systems
  • Planets and satellites: detection
  • Planets and satellites: atmospheres
  • Planets and satellites: formation

Fingerprint

Dive into the research topics of 'Direct Imaging discovery of a second planet candidate around the possibly transiting planet host CVSO 30'. Together they form a unique fingerprint.

Cite this