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Research paper thumbnail of Issues in the assessment and conceptualization of personality disorders

Clinical Psychology Review, 2000

Research paper thumbnail of Mid-IR observations of circumstellar disks -- Part III: A mixed sample of PMS stars and Vega-type objects

The silicate emission features of the remaining eight sources are modelled with a mixture of sili... more The silicate emission features of the remaining eight sources are modelled with a mixture of silicates of different grain sizes and composition. Unprocessed dust dominates FU Ori, HD 143006 and CD-43 344. Large amorphous grains are the main dust component around HD 190073, HD 319139, KK Oph and PDS 144 S. Both small grains and crystalline dust is found for the Vega-type HD 123356, with a dominance of small amorphous grains. We show that the infrared emission of the binary HD 123356 is dominated by its late-type secondary, but optical spectroscopy is still required to confirm the age of the system and the spectral class of the companion. For most targets this is their first mid-infrared spectroscopic observation. We investigate trends between stellar, disk and silicate properties and confirm correlations of previous studies. Several objects present an exciting potential for follow-up high-resolution disk studies.

Research paper thumbnail of UNIVERSIDAD ESTATAL DE MILAGRO

Research paper thumbnail of Issues in the assessment and conceptualization of personality disorders

Clinical Psychology Review, 2000

Research paper thumbnail of Mid-IR observations of circumstellar disks -- Part III: A mixed sample of PMS stars and Vega-type objects

The silicate emission features of the remaining eight sources are modelled with a mixture of sili... more The silicate emission features of the remaining eight sources are modelled with a mixture of silicates of different grain sizes and composition. Unprocessed dust dominates FU Ori, HD 143006 and CD-43 344. Large amorphous grains are the main dust component around HD 190073, HD 319139, KK Oph and PDS 144 S. Both small grains and crystalline dust is found for the Vega-type HD 123356, with a dominance of small amorphous grains. We show that the infrared emission of the binary HD 123356 is dominated by its late-type secondary, but optical spectroscopy is still required to confirm the age of the system and the spectral class of the companion. For most targets this is their first mid-infrared spectroscopic observation. We investigate trends between stellar, disk and silicate properties and confirm correlations of previous studies. Several objects present an exciting potential for follow-up high-resolution disk studies.

Research paper thumbnail of UNIVERSIDAD ESTATAL DE MILAGRO

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