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Light echoes from ancient supernovae in the Large Magellanic Cloud


The light from historical supernovae could in principle still be visible as scattered-light echoes centuries after the explosion1,2,3,4,5,6. The detection of light echoes could allow us to pinpoint the supernova event both in position and age and, most importantly, permit the acquisition of spectra to determine the ‘type’ of the supernova centuries after the direct light from the explosion first reached Earth. Although echoes have been discovered around some nearby extragalactic supernovae7,8,9,10,11,12,13, targeted searches have not found any echoes in the regions of historical Galactic supernovae14,15,16. Here we report three faint variable-surface-brightness complexes with high apparent proper motions pointing back to three of the six smallest (and probably youngest) previously catalogued supernova remnants in the Large Magellanic Cloud, which are believed to have been thermonuclear (type Ia) supernovae17. Using the distance and apparent proper motions of these echo arcs, we estimate ages of 610 and 410 years for two of them.

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Figure 1: The light echoes from SN 1987A.
Figure 2: Arcs of light echoes in the Large Magellanic Cloud from previously unseen supernovae.
Figure 3: A plot of the light echo vectors in the LMC.


  1. Shklovskii, I. S. On the possibility of observations of light fronts from explosions of supernovae. Astron. Circ. USSR 306, 2–3 (1964)

    Google Scholar 

  2. van den Bergh, S. Light echoes from ancient supernovae. Publ. Astron. Soc. Pacif. 77, 269–271 (1965)

    Article  ADS  Google Scholar 

  3. van den Bergh, S. The next Galactic supernova. Astrophys. Space Sci. 38, 447–456 (1975)

    Article  ADS  Google Scholar 

  4. Chevalier, R. The scattered light echo of a supernova. Astrophys. J. 308, 225–231 (1986)

    Article  ADS  CAS  Google Scholar 

  5. Schaefer, B. E. Light echoes: supernovae 1987A and 1986G. Astrophys. J. 323, L47–L49 (1987)

    Article  ADS  Google Scholar 

  6. Patat, F. Reflections on reflexions—I. Light echoes in Type Ia supernovae. Mon. Not. R. Astron. Soc. 357, 1161–1177 (2005)

    Article  ADS  Google Scholar 

  7. Crotts, A. Supernova 1987A in the Large Magellanic Cloud. IAU Circ., 4561 (1988)

  8. Suntzeff, N. B. et al. The light echoes from SN1987A. Nature 334, 135–138 (1988)

    Article  ADS  Google Scholar 

  9. Schmidt, B. P. et al. Reflections of past glory. Astrophys. J. 434, L19–L23 (1994)

    Article  ADS  CAS  Google Scholar 

  10. Sparks, W. B. et al. Evolution of the light echo of SN 1991T. Astrophys. J. 523, 585–592 (1999)

    Article  ADS  Google Scholar 

  11. Sugerman, B. E. & Crotts, A. P. S. Multiple light echoes from SN 1993J. Astrophys. J. 581, L97–L100 (2002)

    Article  ADS  Google Scholar 

  12. Liu, J.-F., Bregman, J. N. & Seitzer, P. A scattered light echo around SN 1993J. Astrophys. J. 582, 919–923 (2003)

    Article  ADS  Google Scholar 

  13. Cappellaro, E. et al. Detection of a light echo from SN 1998bu. Astrophys. J. 549, L215–L218 (2001)

    Article  ADS  Google Scholar 

  14. van den Bergh, S. A preliminary search for light echoes from supernovae. Astron. J. 78, 74–76 (1966)

    ADS  Google Scholar 

  15. Boffi, F. R., Sparks, W. B. & Maccheto, F. D. A search for candidate light echoes: Photometry of supernova environments. Astron. Astrophys. Suppl. 138, 253–266 (1999)

    Article  ADS  Google Scholar 

  16. Romaniello, M. et al. Very Large Telescope FORS1 imaging polarimetry of M83 (NGC 5236). I. Search for light echoes from historical supernovae. Astrophys. J. 629, 250–258 (2005)

    Article  ADS  CAS  Google Scholar 

  17. Hughes, J. P. et al. ASCA observations of the Large Magellanic Cloud supernova remnant sample: Typing supernova from their remnants. Astrophys. J. 444, L81–L84 (1995)

    Article  ADS  CAS  Google Scholar 

  18. Mathewson, D. S. et al. Supernova remnants in the Magellanic Clouds. III. Astrophys. J. Suppl. 58, 197–200 (1985)

    Article  ADS  CAS  Google Scholar 

  19. Sugerman, B. E. K. Observability of scattered-light echoes around variable stars and cataclysmic events. Astron. J. 126, 1939–1959 (2003)

    Article  ADS  Google Scholar 

  20. Couderc, P. Les auréoles lumineuses des novae. Ann. Astrophys. 2, 271–302 (1939)

    ADS  MATH  Google Scholar 

  21. Crotts, A. P. S. Discovery of optical echoes from supernova 1987A—new probes of the Large Magellanic Cloud. Astrophys. J. 333, L51–L54 (1988)

    Article  ADS  Google Scholar 

  22. Sparks, W. B. A direct way to measure the distances of galaxies. Astrophys. J. 433, 19–28 (1994)

    Article  ADS  Google Scholar 

  23. Xu, J., Crotts, A. P. S. & Kunkel, W. E. A Three-dimensional study using light echoes of the structure of the interstellar medium in front of SN 1987A. Astrophys. J. 451, 806–815 (1995)

    Article  ADS  Google Scholar 

  24. Smith, R. C., Kirshner, R. P., Blair, W. P. & Winkler, P. F. Six Balmer-dominated supernova remnants. Astrophys. J. 375, 652–662 (1991)

    Article  ADS  CAS  Google Scholar 

  25. Zwicky, F. Types of novae. Rev. Mod. Phys. 12, 66–85 (1940)

    Article  ADS  Google Scholar 

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This Letter is based on observations obtained at NOAO, operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the NSF. C.S. thanks the National Science Foundation, the McDonnell Foundation, and Harvard University for their support of the SuperMACHO project. D.L.W. acknowledges support from the Natural Sciences and Engineering Research Council of Canada (NSERC). The work of K.C., M.H. and S.N. was performed under the auspices of the US Department of Energy, National Nuclear Security Administration by the University of California, Lawrence Livermore National Laboratory. A.C. acknowledges support from FONDECYT. D.M. was partially supported by FONDAP. J.L.P. was funded by the OSU Astronomy Department Fellowship.

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Correspondence to Nicholas B. Suntzeff.

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Rest, A., Suntzeff, N., Olsen, K. et al. Light echoes from ancient supernovae in the Large Magellanic Cloud. Nature 438, 1132–1134 (2005).

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