Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations

Details Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations

1999-08-27

arxiv.org/abs/astro-ph/9908311v1

Astronomy and Astrophysics

Astrophysics

32 pages, 13 figs; LaTeX with AASTEXv5; paper accepted, scheduled for AJ, Dec 1999

Scientific paper

10.1086/301145

We update the light curves from the X-ray, optical, and radio bandpasses which we have assembled over the past decade, and present two observations in the ultraviolet using the Hubble Space Telescope Faint Object Spectrograph. The HRI X-ray light curve is constant within the errors over the entire observation period. This behavior is confirmed in the ASCA GIS data obtained in 1993 and 1995. In the ultraviolet, we detected Ly-alpha, the [Ne IV] 2422/2424 A doublet, the Mg II doublet at 2800 A, and a line at ~3190 A we attribute to He I 3187. Only the Mg II and He I lines are detected at SN1978K's position. The optical light curve is formally constant within the errors, although a slight upward trend may be present. The radio light curve continues its steep decline. The longer time span of our radio observations compared to previous studies shows that SN1978K is in the same class of highly X-ray and radio-luminous supernovae as SN1986J and SN1988Z. The [Ne IV] emission is spatially distant from the location of SN1978K and originates in the pre-shocked matter. The Mg II doublet flux ratio implies the quantity of line optical depth times density of ~10^14 cm^-3 for its emission region. The emission site must lie in the shocked gas.

Affiliated with

Also associated with

No associations

Rating

Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations 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 Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497892