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Title: CARBON MONOXIDE IN THE COLD DEBRIS OF SUPERNOVA 1987A

We report spectroscopic and imaging observations of rotational transitions of cold CO and SiO in the ejecta of SN1987A, the first such emission detected in a supernova remnant. In addition to line luminosities for the CO J = 1-0, 2-1, 6-5, and 7-6 transitions, we present upper limits for all other transitions up to J = 13-12, collectively measured from the Atacama Large Millimeter Array, the Atacama Pathfinder EXperiment, and the Herschel Spectral and Photometric Imaging REceiver. Simple models show the lines are emitted from at least 0.01 M{sub Sun} of CO at a temperature >14 K, confined within at most 35% of a spherical volume expanding at {approx}2000 km s{sup -1}. Moreover, we locate the emission within 1'' of the central debris. These observations, along with a partial observation of SiO, confirm the presence of cold molecular gas within supernova remnants and provide insight into the physical conditions and chemical processes in the ejecta. Furthermore, we demonstrate the powerful new window into supernova ejecta offered by submillimeter observations.
Authors:
; ;  [1] ;  [2] ; ;  [3] ;  [4] ; ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12] ;  [13] ;  [14] ;  [15] ;  [16] more »; « less
  1. Department of Astrophysical and Planetary Sciences, University of Colorado at Boulder, UCB 391, Boulder, CO 80309 (United States)
  2. Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22903 (United States)
  3. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)
  4. Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent (Belgium)
  5. Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D BUS 2401, B-2001 Leuven (Belgium)
  6. Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)
  7. Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8410 (New Zealand)
  8. Department of Astronomy, Oskar Klein Centre, Stockholm University, AlbaNova, SE-106 91 Stockholm (Sweden)
  9. School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA (United Kingdom)
  10. Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussels (Belgium)
  11. Physics Department, Imperial College London, London SW7 2AZ (United Kingdom)
  12. Harvard College Observatory, 60 Garden Street, Cambridge, MA 02138 (United States)
  13. Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG (United Kingdom)
  14. Universidad de Valencia, C/Dr. Moliner 50, E-46100 Burjassot (Spain)
  15. Onsala Space Observatory, SE-439 92 Onsala (Sweden)
  16. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
Publication Date:
OSTI Identifier:
22136564
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 773; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CARBON MONOXIDE; EMISSION; LUMINOSITY; SPHERICAL CONFIGURATION; SUPERNOVA REMNANTS; SUPERNOVAE