Understanding the extreme luminosity of DES14X2fna

Author:

Grayling M12ORCID,Gutiérrez C P1ORCID,Sullivan M1ORCID,Wiseman P1ORCID,Vincenzi M3ORCID,González-Gaitán S4ORCID,Tucker B E5,Galbany L6ORCID,Kelsey L1ORCID,Lidman C5ORCID,Swann E3,Smith M1ORCID,Frohmaier C,Carollo D7,Glazebrook K8,Lewis G F9ORCID,Möller A10,Hinton S R11ORCID,Uddin S A12,Abbott T M C13,Aguena M1415ORCID,Avila S16ORCID,Bertin E1718ORCID,Bhargava S19,Brooks D20,Carnero Rosell A2122ORCID,Carrasco Kind M2324ORCID,Carretero J25ORCID,Costanzi M2627,da Costa L N1528,De Vicente J29ORCID,Desai S30,Diehl H T31,Doel P20,Everett S32,Ferrero I33ORCID,Fosalba P3435ORCID,Frieman J3136,García-Bellido J16ORCID,Gaztanaga E3435ORCID,Gruen D373839ORCID,Gruendl R A2324,Gschwend J1528,Gutierrez G31,Hoyle B404142,Kuehn K4344,Kuropatkin N31,Lima M1415,MacCrann N4546ORCID,Marshall J L47,Martini P454849,Miquel R2550,Morgan R51,Palmese A3136ORCID,Paz-Chinchón F2452,Plazas A A53ORCID,Romer A K19,Sánchez C54ORCID,Sanchez E29,Scarpine V31,Serrano S3435,Sevilla-Noarbe I29,Soares-Santos M55ORCID,Suchyta E56ORCID,Tarle G55,Thomas D3ORCID,To C373839ORCID,Varga T N4142,Walker A R13,Wilkinson R D19,

Affiliation:

1. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK

2. DISCnet Centre for Doctoral Training, University of Southampton, Southampton SO17 1BJ, UK

3. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK

4. CENTRA, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, PL-1049-001 Lisboa, Portugal

5. The Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 2601, Australia

6. Departamento de Física Teórica y del Cosmos, Universidad de Granada, E-18071 Granada, Spain

7. INAF, Astrophysical Observatory of Turin, I-10025 Pino Torinese, Italy

8. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia

9. Sydney Institute for Astronomy, School of Physics, A28, The University of Sydney, NSW 2006, Australia

10. Université Clermont Auvergne, CNRS/IN2P3, LPC, F-63000 Clermont-Ferrand, France

11. School of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, Australia

12. McDonald Observatory, The University of Texas at Austin, Fort Davis, TX 79734, USA

13. Cerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory, Casilla 603, La Serena, Chile

14. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, Brazil

15. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil

16. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain

17. CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

18. Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

19. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK

20. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK

21. Instituto de Astrofisica de Canarias, E-38205 La Laguna, Tenerife, Spain

22. Universidad de La Laguna, Dpto. Astrofísica, E-38206 La Laguna, Tenerife, Spain

23. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA

24. National Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USA

25. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain

26. INAF – Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, I-34143 Trieste, Italy

27. Institute for Fundamental Physics of the Universe, Via Beirut 2, I-34014 Trieste, Italy

28. Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil

29. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, Spain

30. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India

31. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA

32. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA

33. Institute of Theoretical Astrophysics, University of Oslo. PO Box 1029 Blindern, NO-0315 Oslo, Norway

34. Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain

35. Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain

36. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA

37. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA

38. Kavli Institute for Particle Astrophysics and Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA

39. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

40. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany

41. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany

42. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany

43. Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia

44. Lowell Observatory, 1400 Mars Hill Rd, Flagstaff, AZ 86001, USA

45. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA

46. Department of Physics, The Ohio State University, Columbus, OH 43210, USA

47. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA

48. Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA

49. Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA 02138, USA

50. Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain

51. Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USA

52. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

53. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA

54. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA

55. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA

56. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

Abstract

ABSTRACT We present DES14X2fna, a high-luminosity, fast-declining Type IIb supernova (SN IIb) at redshift z = 0.0453, detected by the Dark Energy Survey (DES). DES14X2fna is an unusual member of its class, with a light curve showing a broad, luminous peak reaching Mr ≃ −19.3 mag 20 d after explosion. This object does not show a linear decline tail in the light curve until ≃60 d after explosion, after which it declines very rapidly (4.30 ± 0.10 mag 100 d−1 in the r band). By fitting semi-analytic models to the photometry of DES14X2fna, we find that its light curve cannot be explained by a standard 56Ni decay model as this is unable to fit the peak and fast tail decline observed. Inclusion of either interaction with surrounding circumstellar material or a rapidly-rotating neutron star (magnetar) significantly increases the quality of the model fit. We also investigate the possibility for an object similar to DES14X2fna to act as a contaminant in photometric samples of SNe Ia for cosmology, finding that a similar simulated object is misclassified by a recurrent neural network (RNN)-based photometric classifier as an SN Ia in ∼1.1–2.4 per cent of cases in DES, depending on the probability threshold used for a positive classification.

Funder

Science and Technology Facilities Council

ERC

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. SN 2018gk Revisited: the Photosphere, the Central Engine, and the Putative Dust;The Astrophysical Journal;2023-05-01

2. Core-collapse supernovae in the Dark Energy Survey: luminosity functions and host galaxy demographics;Monthly Notices of the Royal Astronomical Society;2023-01-11

3. The dark energy survey 5-yr photometrically identified type Ia supernovae;Monthly Notices of the Royal Astronomical Society;2022-06-20

4. A puzzle solved after two decades: SN 2002gh among the brightest of superluminous supernovae;Monthly Notices of the Royal Astronomical Society;2022-05-19

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3