References of "Le Bertre, Th"
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See detailInfrared photometry of SN 1987A - The first four months
Bouchet, P.; Le Bertre, Th; Manfroid, Jean ULg et al

in European Southern Observatory Astrophysics Symposia (1987)

The results of the first 4 mo of the ESO La Silla IR photometric monitoring program of SN 1987A. IR light curves are presented, and the IR data are combined with optical photometry to determine the ... [more ▼]

The results of the first 4 mo of the ESO La Silla IR photometric monitoring program of SN 1987A. IR light curves are presented, and the IR data are combined with optical photometry to determine the luminosity, the effective radius, and the effective temperature, and how they evolved. Particular attention is given to the IR excess which become apparent beginning less than 1 mo after the explosion. Three possible interpretations of the excess IR emission are presented: an IR echo from preexisting dust, thermal emission from dust that has just condensed from the ejecta, and free-free emission from the expanding ejecta. None of the models are entirely satisfactory. [less ▲]

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See detailLow and intermediate resolution IR spectroscopy
Bouchet, P.; Le Bertre, Th; Manfroid, Jean ULg et al

in European Southern Observatory Astrophysics Symposia (1987)

The authors present the results of the first four months of the ESO-La Silla program of IR spectrophotometric monitoring of SN 1987A. The spectra show mainly hydrogen lines with their intensities ... [more ▼]

The authors present the results of the first four months of the ESO-La Silla program of IR spectrophotometric monitoring of SN 1987A. The spectra show mainly hydrogen lines with their intensities increasing with time. The He I 1.083 μm line is also observed with a weak emission component and a strong absorption component. There are also several features whose nature is unclear. [less ▲]

Detailed reference viewed: 3 (0 ULg)