We present the analysis of TESS optical photometry of WASP-121b, which reveals the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at...
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PublicationOptical phase curve of the ultra-hot Jupiter WASP-121b
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PublicationOptical polarimetric monitoring of the type II-plateau SN 2005af
Aims.Core-collapse supernovae may show significant polarization that implies non-spherically symmetric explosions. We observed the type II-plateau SN 2005af...
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PublicationOptical polarimetric observations of the microquasar LS 5039
We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (˜5%) of polarized...
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PublicationOptical polarimetry of SN 2004bv
We report R band imaging polarimetry of SN 2004bv in NGC 6907 on June 19.299 (UT middle of observation), i.e., two weeks after maximum. We have obtained [ 0.11...
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PublicationOptical properties of metal-poor T dwarf candidates
Context. Metal-poor brown dwarfs are poorly understood because they are extremely faint and rare. Only a few candidates have been identified as T-type subdwarfs...
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PublicationOptical spectroscopy of 4U 1812-12. An ultra-compact X-ray binary seen through an H II region
The persistent low-luminosity neutron star X-ray binary 4U 1812-12 is a potential member of the scarce family of ultra-compact systems. We performed deep...
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PublicationOptical spectroscopy of blazars for the Cherenkov Telescope Array
Context. Blazars are the most numerous class of high-energy (HE; E ∼ 50 MeV−100 GeV) and very high-energy (VHE; E ∼ 100 GeV−10 TeV) gamma-ray emitters...
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PublicationOptical spectroscopy of blazars for the Cherenkov Telescope Array - III
Context. Blazars, which include BL Lacs and flat-spectrum radio quasars, represent the brightest persistent extragalactic sources in the high-energy (HE; 10 MeV...
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PublicationOptical spectroscopy of IRAS 02091+6333
We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (cite...