Aims.The interpretation of globular cluster horizontal branch (HB) morphology is a classical problem that can significantly blur our understanding of stellar...
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PublicationMultivariate analysis of globular cluster horizontal branch morphology: searching for the second parameter
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PublicationMultiwavelength follow-up of a rare IceCube neutrino multiplet
On February 17, 2016, the IceCube real-time neutrino search identified, for the first time, three muon neutrino candidates arriving within 100 s of one another...
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PublicationMultiwavelength monitoring of BD +53°2790, the optical counterpart to 4U 2206+54
We present the results of our long-term monitoring of BD +53°2790, the optical counterpart to the X-ray source 4U 2206+54. Unlike previous studies that classify...
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PublicationMultiwavelength observations of a VHE gamma-ray flare from PKS 1510-089 in 2015
Context. PKS 1510-089 is one of only a few flat spectrum radio quasars detected in the very-high-energy (VHE, > 100 GeV) gamma-ray band. Aims: We study the...
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PublicationMultiwavelength observations of Mrk 501 in 2008
Context. Blazars are variable sources on various timescales over a broad energy range spanning from radio to very high energy (>100 GeV, hereafter VHE). Mrk 501...
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PublicationMultiwavelength study of Cygnus A. IV. Proper motion and location of the nucleus
Context. Cygnus A, as the nearest powerful FR II radio galaxy, plays an important role in understanding jets and their impact on the surrounding intracluster...
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PublicationMultiwavelength study of the fast rotating supergiant high-mass X-ray binary IGR J16465-4507
Context. Since its launch, the X-ray and γ-ray observatory INTEGRAL satellite has revealed a new class of high-mass X-ray binaries (HMXB) displaying fast flares...
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PublicationMultiwavelength study of the galactic PeVatron candidate LHAASO J2108+5157
Context. Several new ultrahigh-energy (UHE) γ-ray sources have recently been discovered by the Large High Altitude Air Shower Observatory (LHAASO) collaboration...
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PublicationMultiwavelength study of the low-luminosity outbursting young star HBC 722
Context. HBC 722 (V2493 Cyg) is a young eruptive star in outburst since 2010. Spectroscopic evidence suggests that the source is an FU Orionis-type object, with...