ISO SWS/LWS observations of SN 1987A

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dc.creatorLundqvist, P.
dc.creatorSollerman, J.
dc.creatorKozma, C.
dc.creatorLarsson, B.
dc.creatorSpyromilio, J.
dc.creatorCrotts, A. P. S.
dc.creatorDanziger, J.
dc.creatorKunze, D.
dc.date1999-05-29
dc.date.accessioned2026-07-07T02:31:45Z
dc.date.available2026-07-07T02:31:45Z
dc.descriptionWe report on observations of SN 1987A with ISO SWS/LWS made 9 - 11 years after the explosion. No emission from the supernova was seen. In particular, the upper limits on the fluxes of [Fe I] 24.05 microns and [Fe II] 25.99 microns on day 3999 are roughly 1.1 Jy and 1.4 Jy, respectively. Assuming a homogeneous distribution of Ti-44 inside 2000 km/s, we have made theoretical models to estimate the mass of ejected Ti-44. Assessing various uncertainties of the model, we obtain an upper limit of 1.5\EE{-4} solar masses. The implications of this are discussed. The LWS data display continuum emission as well as nebular lines of [O I], [C II] and [O III] from neighboring photoexcited regions in the LMC. The [O III] lines indicate an electron density of 120 +/- 75 cm^{-3}, and the continuum can be explained by dust with a temperature of roughly 37 K. A second dust component with approximately 10 K may also be present.
dc.description8 pages A&A format (including 2 figures). A&A, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/9905389
dc.identifierhttp://arxiv.org/abs/astro-ph/9905389
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14270
dc.subjectAstrophysics
dc.titleISO SWS/LWS observations of SN 1987A
dc.typetext

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