Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio

Details Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio

2007-07-24

arxiv.org/abs/0707.3485v1

Astronomy and Astrophysics

Astrophysics

13 Figures, Accepted for Publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2007.12258.x

We present X-ray, broad band optical and low frequency radio observations of the bright type IIP supernova SN 2004et. The \cxo observed the supernova at three epochs, and the optical coverage spans a period of $\sim$ 470 days since explosion. The X-ray emission softens with time, and we characterise the X-ray luminosity evolution as $\Lx \propto t^{-0.4}$. We use the observed X-ray luminosity to estimate a mass-loss rate for the progenitor star of $\sim \ee{2}{-6} M_\odot \mathrm{yr}^{-1}$. The optical light curve shows a pronounced plateau lasting for about 110 days. Temporal evolution of photospheric radius and color temperature during the plateau phase is determined by making black body fits. We estimate the ejected mass of $^{56}$Ni to be 0.06 $\pm$ 0.03 M$_\odot$. Using the expressions of Litvinova & Nad\"{e}zhin (1985) we estimate an explosion energy of (0.98 $\pm$ 0.25) $\times 10^{51}$ erg. We also present a single epoch radio observation of SN 2004et. We compare this with the predictions of the model proposed by Chevalier et al. (2006). These multi-wavelength studies suggest a main sequence progenitor mass of $\sim$ 20 M$_\odot$ for SN 2004et.

Affiliated with

Also associated with

No associations

Rating

Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio 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 Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440016