1999A&A...347..500L


Query : 1999A&A...347..500L

1999A&A...347..500L - Astronomy and Astrophysics, volume 347, 500-507 (1999/7-2)

ISO SWS/LWS observations of SN 1987A.

LUNDQVIST P., SOLLERMAN J., KOZMA C., LARSSON B., SPYROMILIO J., CROTTS A.P.S., DANZIGER J. and KUNZE D.

Abstract (from CDS):

We 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] 24.05µm and [Fe II] 25.99µm on day 3999 are ∼1.1Jy and ∼1.4Jy, respectively. Assuming a homogeneous distribution of 44Ti inside 2000km/s, we have made theoretical models to estimate the mass of ejected 44Ti. Assessing various uncertainties of the model, we obtain an upper limit of ≃1.5x10–4M. 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±75cm–3, and the continuum can be explained by dust with a temperature of ∼37K. A second dust component with ∼10K may also be present.

Abstract Copyright:

Journal keyword(s): stars: supernovae: individual: SN 1987A - nuclear reactions, nucleosynthesis, abundances - stars: supernovae: general

CDS comments: p. 506, GRO J0852-4262 misprint for -4622 (= GRO J0852-46.7)

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4692 2
2 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 442 2
3 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2591 1

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2022.05.24-08:21:19

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