Multiple Light Echoes from Supernova 1993J

Details Multiple Light Echoes from Supernova 1993J Multiple Light Echoes from Supernova 1993J

2002-07-23

arxiv.org/abs/astro-ph/0207497v3

Astrophys.J. 581 (2002) L97-L100

Astronomy and Astrophysics

Astrophysics

Accepted for publication in ApJL. 5 pages incl. 3 figures, uses emulateapj5. Replacement version with minor changes to manuscr

Scientific paper

10.1086/346016

Using the technique of PSF-matched image subtraction, we have analyzed archival HST/WFPC2 data to reveal details of at least two light-echo structures, including some unknown before now, around SN 1993J in the galaxy M81. In particular, we see one partial sheet of material 81 pc in front of the SN and tilted ~60 deg relative to the disk plane of M81, and another 220 pc in front of the SN, roughly parallel to the disk. The inferred echoing material is consistent with the HI surface density detected in this region of M81's disk; however, these data imply a fragmented covering factor for the echoing structures. We discuss prospects for future (roughly annual) visits by HST to image these and yet undiscovered echoes in the interstellar and circumstellar environment of SN 1993J.

Affiliated with

Also associated with

No associations

Rating

Multiple Light Echoes from Supernova 1993J does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Multiple Light Echoes from Supernova 1993J, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple Light Echoes from Supernova 1993J will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-468979