4 papers
Diffraction-limited bispectrum speckle interferometry and speckle polarimetry of the young bipolar outflow source S140 IRS1
D. Schertl, Y. Balega, T. Hannemann +3
We present bispectrum speckle interferometry and speckle polarimetry of the deeply embedded infrared bipolar outflow source S140 IRS1, a massive protostellar object in the L1204 mo…
Multiplicity of massive stars
Thomas Preibisch, Gerd Weigelt, Hans Zinnecker
We discuss the observed multiplicity of massive stars and implications on theories of massive star formation. After a short summary of the literature on massive star multiplicity,…
Triggered Star Formation in the Scorpius-Centaurus OB Association (Sco OB2)
Thomas Preibisch, Hans Zinnecker
We explore the star formation history of the Upper Scorpius OB association, the youngest part of Sco OB2. A wide field (160 square-degree) survey for low-mass pre-main sequence (PM…
Bispectrum speckle interferometry of the Orion Trapezium stars: detection of a close (33 mas) companion of Theta1 Ori C
Gerd Weigelt, Yuri Balega, Thomas Preibisch +3
We present bispectrum speckle interferometry observations with the SAO 6 m telescope of the four brightest stars in the Orion Trapezium. Diffraction-limited images with an unpreced…