A mid-infrared interferometric survey of the planet-forming region around young Sun-like stars

József Varga, Péter Ábrahám, Lei Chen, Thorsten Ratzka, K. Gabányi, Kóspál, Bruce G. Elmegreen, L. Tóth, Manuel Güdel

Research output: Contribution to journalArticle

Abstract

We present our results from a mid-infrared interferometric survey targeted at the planet-forming region in the circumstellar disks around low- A nd intermediate-mass young stars. Our sample consists of 82 objects, including T Tauri stars, Herbig Ae stars, and young eruptive stars. Our main results are: 1) Disks around T Tauri stars are similar to those around Herbig Ae stars, but are relatively more extended once we account for stellar luminosity. 2) From the distribution of the sizes of the mid-infrared emitting region we find that inner dusty disk holes may be present in roughly half of the sample. 3) Our analysis of the silicate spectral feature reveals that the dust in the inner ∼1 au region of disks is generally more processed than that in the outer regions. 4) The dust in the disks of T Tauri stars typically show weaker silicate emission in the N band spectrum, compared to Herbig Ae stars, which may indicate a general difference in the disk structure. Our data products are available at VizieR, and at the following web page: Http://konkoly.hu/MIDI_atlas.

Original languageEnglish
Pages (from-to)128-131
Number of pages4
JournalProceedings of the International Astronomical Union
DOIs
Publication statusAccepted/In press - 2019

Keywords

  • infrared: Stars
  • planetary systems: Protoplanetary disks
  • stars: Pre-main-sequence
  • techniques: Interferometric

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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