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The Herschel DIGIT Survey of Weak-line T Tauri Stars: implications for disk evolution and dissipation
Lucas A. Cieza, Johan Olofsson, Paul M. Harvey +8
As part of the "Dust, Ice, and Gas In Time (DIGIT)" Herschel Open Time Key Program, we present Herschel photometry (at 70, 160, 250, 350 and 500 micron) of 31 Weak-Line T Tauri sta…
Structure and Thermodynamical Properties of Zirconium hydrides from first-principle
Jakob Blomqvist, Johan Olofsson, Anna-Maria Alvarez +1
Zirconium alloys are used as nuclear fuel cladding material due to their mechanical and corrosion resistant properties together with their favorable cross-section for neutron scatt…
A Likely Close-In Low-Mass Stellar Companion to the Transitional Disk Star HD 142527
Beth Biller, Sylvestre Lacour, Attila Juhász +11
With the uniquely high contrast within 0.1" (Δmag(L') = 5-6.5 magnitudes) available using Sparse Aperture Masking (SAM) with NACO at VLT, we detected asymmetry in the flux from the…
Transient dust in warm debris disks - Detection of Fe-rich olivine grains
Johan Olofsson, Attila Juhasz, Thomas Henning +4
(Abridged) Debris disks trace remnant reservoirs of leftover planetesimals in planetary systems. A handful of "warm" debris disks have been discovered in the last years, where emis…