Abstract
view Abstract Citations (22) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Two New Light Echo Structures from SN 1987A at Large Distances Xu, Jun ; Crotts, Arlin P. S. ; Kunkel, William E. Abstract Observations since 1991 September 18 reveal two new (and possibly related) light echo structures at 3140 and 3240 lt-yr in the SN foreground. The details are presented herein. A forward-scattering light echo model is used to calculate the dust mass swept up by these echoes of 4.0 M_sun_ and 1.7 M_sun_ as of 1993 May 1, and their extinction Anu_ of 0.052 and 0.044 mag. The extinction calculated from light echo surface brightness is shown to depend only weakly on dust models. We further speculate that these dust clouds, and the large-scale structures suggested by Bruhweiler et al. (1991), may be due to the same giant superbubble in the Large Magellanic Clouds, which was formed from the merger of several smaller superbubbles. Publication: The Astrophysical Journal Pub Date: November 1994 DOI: 10.1086/174812 Bibcode: 1994ApJ...435..274X Keywords: Astronomical Models; Echoes; Forward Scattering; Interstellar Matter; Light Scattering; Magellanic Clouds; Supernova Remnants; Supernovae; Bubbles; Cosmic Dust; Mass; Mathematical Models; Astronomy; GALAXIES: MAGELLANIC CLOUDS; ISM: BUBBLES; ISM: INDIVIDUAL ALPHANUMERIC: SN 1987A; ISM: SUPERNOVA REMNANTS full text sources ADS | data products SIMBAD (2) NED (2)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
