Evolution of the optical spectrum of SN 1987a in the large magellanic cloud

1987 ◽  
Vol 8 (2) ◽  
pp. 195-209 ◽  
Author(s):  
B. N. Ashoka ◽  
G. C. Anupama ◽  
T. P. Prabhu ◽  
S. Giridhar ◽  
K. K. Ghosh ◽  
...  
Keyword(s):  
Optical Spectrum ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Sn 1987A

Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ringRabs= (6.23 ± 0.08) x 1017cm and an angular sizeR″ = 808 ± 17 mas, which give a distance to the supernovad(SN1987A) = 51.4 ± 1.2 kpc and a distance modulusm–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to bed(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus ofm–M(LMC) = 18.58±0.05.

scholarly journals Studies of the large Magellanic Cloud using optical interstellar emission lines

1991 ◽  
Vol 148 ◽  
pp. 421-427
Author(s):  
J. Meaburn
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Emission Lines ◽  
Optical Observations ◽  
Sn 1987A ◽  
30 Doradus

Optical observations have been made of the halo of 30 Doradus, in the vicinity of SN 1987A and of giant shells in the LMC.

Interstellar Abundances in the Magellanic Clouds. II. The Line of Sight to SN 1987A in the Large Magellanic Cloud

1999 ◽  
Vol 512 (2) ◽  
pp. 636-671 ◽  
Author(s):  
D. E. Welty ◽  
P. C. Frisch ◽  
G. Sonneborn ◽  
D. G. York
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Magellanic Clouds ◽  
Line Of Sight ◽  
Sn 1987A

scholarly journals Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ring Rabs = (6.23 ± 0.08) x 1017 cm and an angular size R″ = 808 ± 17 mas, which give a distance to the supernova d(SN1987A) = 51.4 ± 1.2 kpc and a distance modulus m–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to be d(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus of m–M(LMC) = 18.58±0.05.

Measurements of the diameter of the Large Magellanic Cloud supernova SN 1987A

1989 ◽  
Vol 340 ◽  
pp. 435 ◽  
Author(s):  
M. Karovska ◽  
L. Koechlin ◽  
P. Nisenson ◽  
C. Papaliolios ◽  
C. Standley
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Sn 1987A

Properties of the SN 1987A circumstellar ring and the distance to the Large Magellanic Cloud

1991 ◽  
Vol 380 ◽  
pp. L23 ◽  
Author(s):  
N. Panagia ◽  
R. Gilmozzi ◽  
F. Macchetto ◽  
H.-M. Adorf ◽  
R. P. Kirshner
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Sn 1987A

scholarly journals A Geometric Determination of the Distance to SN 1987A and the LMC

2005 ◽  
Vol 192 ◽  
pp. 585-592 ◽  
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A ◽  
Original Analysis

SummaryUsing the definitive reductions of the IUE light curves by [15] and an extensive set of HST images of SN 1987A we have repeated and improved our original analysis [8, 9] to derive a better determination of the distance to the supernova. In this way we have obtained an absolute size of the ring Rabs = (6.23 ± 0.08) × 1017 cm and an angular size R″ = 808 ± 17 mas, which give a distance to the supernova d(SN1987A) = 51.4±1.2 kpc and a distance modulus (m − M)sN1987A = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to be d(LMC) = 51.7±1.3 kpc, which corresponds to a distance modulus of (m − M)LMC = 18.56 ± 0.05.

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