Mid-infrared interferometry of massive young stellar objects

H. Linz, B. Stecklum, R. Follert, Th Henning, R. Van Boekel, A. Men'shchikov, Ilaria Pascucci, M. Feldt

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The very inner structure of massive YSOs is difficult to trace. With conventional observational methods we identify structures still several hundreds of AU in size. However, the (proto-)stellar growth takes place at the innermost regions (<100 AU) where the actual mass transfer onto the forming high-mass star occurs. We present results from our programme toward massive YSOs at the VLTI, utilising the two-element interferometer MIDI. To date, we observed 10 well-known massive YSOs down to scales of 20 mas (typically corresponding to 20 -40 AU for our targets) in the 8-13 micron region. We clearly resolve these objects which results in low visibilities and sizes in the order of 30-50 mas. For two objects, we show results of our modelling. We demonstrate that the MIDI data can reveal decisive structure information for massive YSOs. They are often pivotal in order to resolve ambiguities still immanent in model parameters derived from sole SED fitting.

Original languageEnglish (US)
Article number012024
JournalJournal of Physics: Conference Series
Volume131
DOIs
StatePublished - 2008

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interferometry
low visibility
ambiguity
mass transfer
interferometers
stars

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Linz, H., Stecklum, B., Follert, R., Henning, T., Van Boekel, R., Men'shchikov, A., ... Feldt, M. (2008). Mid-infrared interferometry of massive young stellar objects. Journal of Physics: Conference Series, 131, [012024]. https://doi.org/10.1088/1742-6596/131/1/012024

Mid-infrared interferometry of massive young stellar objects. / Linz, H.; Stecklum, B.; Follert, R.; Henning, Th; Van Boekel, R.; Men'shchikov, A.; Pascucci, Ilaria; Feldt, M.

In: Journal of Physics: Conference Series, Vol. 131, 012024, 2008.

Research output: Contribution to journalArticle

Linz, H, Stecklum, B, Follert, R, Henning, T, Van Boekel, R, Men'shchikov, A, Pascucci, I & Feldt, M 2008, 'Mid-infrared interferometry of massive young stellar objects', Journal of Physics: Conference Series, vol. 131, 012024. https://doi.org/10.1088/1742-6596/131/1/012024
Linz H, Stecklum B, Follert R, Henning T, Van Boekel R, Men'shchikov A et al. Mid-infrared interferometry of massive young stellar objects. Journal of Physics: Conference Series. 2008;131. 012024. https://doi.org/10.1088/1742-6596/131/1/012024
Linz, H. ; Stecklum, B. ; Follert, R. ; Henning, Th ; Van Boekel, R. ; Men'shchikov, A. ; Pascucci, Ilaria ; Feldt, M. / Mid-infrared interferometry of massive young stellar objects. In: Journal of Physics: Conference Series. 2008 ; Vol. 131.
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