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Title: ASASSN-15lh: A highly super-luminous supernova

Abstract

Here, we report the discovery of ASASSN-15lh (SN 2015L), which we interpret as the most luminous supernova yet found. At redshift z = 0.2326, ASASSN-15lh reached an absolute magnitude of M u,AB = –23.5 ± 0.1 and bolometric luminosity L bol = (2.2 ± 0.2) × 10 45 ergs s –1, which is more than twice as luminous as any previously known supernova. It has several major features characteristic of the hydrogen-poor super-luminous supernovae (SLSNe-I), whose energy sources and progenitors are currently poorly understood. In contrast to most previously known SLSNe-I that reside in star-forming dwarf galaxies, ASASSN-15lh appears to be hosted by a luminous galaxy ( M K ≈ –25.5) with little star formation. In the 4 months since first detection, ASASSN-15lh radiated (1.1 ± 0.2) × 10 52 ergs, challenging the magnetar model for its engine.

Authors:
 [1];  [2];  [3];  [4];  [5];  [5];  [5];  [5];  [6];  [2];  [5];  [5];  [7];  [8];  [5];  [9];  [10];  [11];  [5];  [12] more »;  [13];  [14];  [15];  [16];  [17];  [17];  [18];  [5];  [18]; ORCiD logo [19] « less
  1. Peking Univ., Beijing (China)
  2. Carnegie Observatories, Pasadena, CA (United States)
  3. Univ. Diego Portales, Santiago (Chile); Millennium Institute of Astrophysics, Santiago (Chile)
  4. The State Univ. of New Jersey, Piscataway, NJ (United States)
  5. The Ohio State Univ., Columbus, OH (United States)
  6. Carnegie Observatories, La Serena (Chile)
  7. Liverpool John Moores Univ., Liverpool (United Kingdom)
  8. Coral Towers Observatory, Queensland (Australia)
  9. INAF-Osservatorio Astrofisico di Catania, Catania (Italy)
  10. Peking Univ., Hai Dian District (People's Republic of China)
  11. Observatoire de Strasbourg, Strasbourg (France)
  12. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  13. Morehead State Univ., Morehead, KY (United States)
  14. Variable Star Observers League in Japan (VSOLJ), Chiba (Japan)
  15. The Virtual Telescope Project, Ceccano (Italy)
  16. Mt. Vernon Observatory, Nelson (New Zealand)
  17. Millennium Institute of Astrophysics, Santiago (Chile); Univ. Andres Bello, Santiago (Chile)
  18. Warsaw Univ. Astronomical Observatory, Warsaw (Poland)
  19. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1492526
Report Number(s):
LA-UR-15-25123
Journal ID: ISSN 0036-8075
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 351; Journal Issue: 6270; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Astronomy and Astrophysics

Citation Formats

Dong, Subo, Shappee, B. J., Prieto, J. L., Jha, S. W., Stanek, K. Z., Holoien, T. W. -S., Kochanek, C. S., Thompson, T. A., Morrell, N., Thompson, I. B., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Brown, J. S., Bufano, F., Chen, Ping, Conseil, E., Danilet, A. B., Falco, E., Grupe, D., Kiyota, S., Masi, G., Nicholls, B., Olivares E., F., Pignata, G., Pojmanski, G., Simonian, G. V., Szczygiel, D. M., and Wozniak, Przemyslaw R. ASASSN-15lh: A highly super-luminous supernova. United States: N. p., 2016. Web. doi:10.1126/science.aac9613.
Dong, Subo, Shappee, B. J., Prieto, J. L., Jha, S. W., Stanek, K. Z., Holoien, T. W. -S., Kochanek, C. S., Thompson, T. A., Morrell, N., Thompson, I. B., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Brown, J. S., Bufano, F., Chen, Ping, Conseil, E., Danilet, A. B., Falco, E., Grupe, D., Kiyota, S., Masi, G., Nicholls, B., Olivares E., F., Pignata, G., Pojmanski, G., Simonian, G. V., Szczygiel, D. M., & Wozniak, Przemyslaw R. ASASSN-15lh: A highly super-luminous supernova. United States. doi:10.1126/science.aac9613.
Dong, Subo, Shappee, B. J., Prieto, J. L., Jha, S. W., Stanek, K. Z., Holoien, T. W. -S., Kochanek, C. S., Thompson, T. A., Morrell, N., Thompson, I. B., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Brown, J. S., Bufano, F., Chen, Ping, Conseil, E., Danilet, A. B., Falco, E., Grupe, D., Kiyota, S., Masi, G., Nicholls, B., Olivares E., F., Pignata, G., Pojmanski, G., Simonian, G. V., Szczygiel, D. M., and Wozniak, Przemyslaw R. Fri . "ASASSN-15lh: A highly super-luminous supernova". United States. doi:10.1126/science.aac9613. https://www.osti.gov/servlets/purl/1492526.
@article{osti_1492526,
title = {ASASSN-15lh: A highly super-luminous supernova},
author = {Dong, Subo and Shappee, B. J. and Prieto, J. L. and Jha, S. W. and Stanek, K. Z. and Holoien, T. W. -S. and Kochanek, C. S. and Thompson, T. A. and Morrell, N. and Thompson, I. B. and Basu, U. and Beacom, J. F. and Bersier, D. and Brimacombe, J. and Brown, J. S. and Bufano, F. and Chen, Ping and Conseil, E. and Danilet, A. B. and Falco, E. and Grupe, D. and Kiyota, S. and Masi, G. and Nicholls, B. and Olivares E., F. and Pignata, G. and Pojmanski, G. and Simonian, G. V. and Szczygiel, D. M. and Wozniak, Przemyslaw R.},
abstractNote = {Here, we report the discovery of ASASSN-15lh (SN 2015L), which we interpret as the most luminous supernova yet found. At redshift z = 0.2326, ASASSN-15lh reached an absolute magnitude of Mu,AB = –23.5 ± 0.1 and bolometric luminosity Lbol = (2.2 ± 0.2) × 1045 ergs s–1, which is more than twice as luminous as any previously known supernova. It has several major features characteristic of the hydrogen-poor super-luminous supernovae (SLSNe-I), whose energy sources and progenitors are currently poorly understood. In contrast to most previously known SLSNe-I that reside in star-forming dwarf galaxies, ASASSN-15lh appears to be hosted by a luminous galaxy (MK ≈ –25.5) with little star formation. In the 4 months since first detection, ASASSN-15lh radiated (1.1 ± 0.2) × 1052 ergs, challenging the magnetar model for its engine.},
doi = {10.1126/science.aac9613},
journal = {Science},
number = 6270,
volume = 351,
place = {United States},
year = {2016},
month = {1}
}

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    Works referencing / citing this record:

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