Discovery of a Light Echo from SN 2003gd

@article{Sugerman2005DiscoveryOA,
  title={Discovery of a Light Echo from SN 2003gd},
  author={Ben E. K. Sugerman},
  journal={The Astrophysical Journal},
  year={2005},
  volume={632}
}
  • B. Sugerman
  • Published 1 September 2005
  • Physics
  • The Astrophysical Journal
Archival HST/ACS data reveal details of a light echo around SN 2003gd in the galaxy M74, only the fifth supernova around which resolved echoes have been reported. An echo is detected 03 from the supernova between position angles of 250° and 360°, with a fainter signal present at a few other position angles. This material lies ~180 pc in front of the supernova, with a thickness of 60-120 pc, and may delineate the disk of M74. This structure has a gas density of 1-2 cm-3, typical of the… Expand

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References

SHOWING 1-10 OF 21 REFERENCES
Multiple Light Echoes from SN 1993J
Using the technique of point-spread function-matched image subtraction, we have analyzed archival Hubble Space Telescope (HST) Wide Field Planetary Camera 2 data to reveal details of at least twoExpand
A Scattered Light Echo around SN 1993J in M81
A light echo around SN 1993J was observed 8.2 yr after explosion by a Hubble Space Telescope Wide Field Planetary Camera 2 observation, adding to the small family of supernovae with light echoes. TheExpand
Evolution of the Light Echo of SN?1991T
Schmidt et al. presented strong evidence (photometry and spectroscopy) that the late time optical emission of SN 1991T in the Virgo spiral NGC 4527 is caused by a light echo. Here, we presentExpand
OBSERVABILITY OF SCATTERED-LIGHT ECHOES AROUND VARIABLE STARS AND CATACLYSMIC EVENTS
Scattered-light echoes from variable and cataclysmic stars offer one of the most effective means to probe the structure and composition of circumstellar and interstellar media. I build a simple modelExpand
Reflections on reflexions — I. Light echoes in Type Ia supernovae
In the last 10 yr, observational evidence has been steadily growing about a possible connection between Type Ia supernovae (SNe Ia) properties and the environment where they explode. In this paper, IExpand
An energetic stellar outburst accompanied by circumstellar light echoes
TLDR
High-resolution imaging and polarimetry of light echoes indicate that V838 Mon represents a hitherto unknown type of stellar outburst, for which the authors have no completely satisfactory physical explanation. Expand
The Three-dimensional Circumstellar Environment of SN 1987A
Surrounding SN 1987A is a three-ring nebula attributed to interacting stellar winds, yet no model has successfully reproduced this system. Fortunately, the progenitor's mass-loss history can beExpand
Expanding the Realm of Microlensing Surveys with Difference Image Photometry
We present a new technique for monitoring microlensing activity even in highly crowded fields, and use this technique to place limits on low-mass MACHOs in the haloes of M31 and the Galaxy. UnlikeExpand
A NEW VIEW OF THE CIRCUMSTELLAR ENVIRONMENT OF SN 1987A
We summarize the analysis of a uniform set of both previously known and newly discovered scattered-light echoes, detected within 30'' of SN 1987A in 10 years of optical imaging, and with which weExpand
SN 1991T: Reflections of past glory
We have obtained photometry and spectra of SN 1991T which extend more than 1000 days past maximum light, by far the longest of SN Ia has been followed. Although SN 1991T exhibited nearly photometricExpand
...
1
2
3
...