This article reports quasi-continuous transiting events towards WD 1054-226 at d = 36.2 pc and V = 16.0 mag, based on simultaneous, high-cadence...
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PublicationRelentless and complex transits from a planetesimal debris disc
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PublicationResolving the Circumstellar Environment of the Galactic B[e] Supergiant Star MWC 137.II. Nebular Kinematics and Stellar Variability
The Galactic B[e] supergiant MWC 137 is surrounded by a large-scale optical nebula. To shed light on the physical conditions and kinematics of the nebula, we...
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PublicationS266: a ring nebula around a Galactic B[e] supergiant?
A narrow-band Hα image and high-resolution spectroscopy have been obtained in order to investigate the nature of S266 and its central star MWC 137. The analysis...
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PublicationShallow Ultraviolet Transits of WD 1145+017
WD 1145+017 is a unique white dwarf system that has a heavily polluted atmosphere, an infrared excess from a dust disk, numerous broad absorption lines from...
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PublicationSilicate Evolution in Brown Dwarf Disks
We present a compositional analysis of the 10 μm silicate spectra for brown dwarf disks in the Taurus and Upper Scorpius (UppSco) star-forming regions, using...
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PublicationSpectropolarimetry of the symbiotic nova HM Sge
We present the first spectropolarimetric observations of the symbiotic nova HM Sge. We first note that marked spectral changes occurred: in the near IR the...
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PublicationSpitzer IRS Spectroscopy of High-Mass Precursors of Planetary Nebulae
We present Spitzer IRS observations of a small sample of heavily obscured IRAS sources displaying both the infrared and OH maser emission characteristic of OH...
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PublicationStructural and compositional properties of brown dwarf disks: the case of 2MASS J04442713+2512164
Aims: To improve our understanding of substellar formation, we have performed a compositional and structural study of a brown dwarf disk. Methods: We present...
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PublicationThe 2004-2006 Outburst and Environment of V1647 Ori
We studied the brightness and spectral evolution of the young eruptive star V1647 Ori during its recent outburst in the period 2004 February-2006 September. We...