The Past and Present Infrared Spectrum of BD+30 3639

Details The Past and Present Infrared Spectrum of BD+30 3639 The Past and Present Infrared Spectrum of BD+30 3639

1993-09-13

arxiv.org/abs/astro-ph/9309016v1

Astronomy and Astrophysics

Astrophysics

(LaTeX, figures on request to azijlstr@eso.org) To be published in Acta Astronomica (Proc. Workshop on Planetary Nebula Nuclei

Scientific paper

We present a radiative-transfer calculation which reproduces the infrared spectrum of the planetary nebula BD+30$^{\circ}$3639, fitting both the spectral energy distribution and the spatial extent at infrared wavelengths. We obtain an acceptable fit to most of the spectrum, including the infrared bands. The fit requires a distance of $\ge 2 \kpc$, which implies that BD+30$^\circ$3639 has evolved from a massive progenitor of several solar masses. Two surprising results are (1) a very low dust-to-gas ratio, (2) an absence of the smallest PAH molecules. Extrapolating back in time, we calculate the previous infrared evolution of BD+30$^\circ$3639.

Affiliated with

Also associated with

No associations

Rating

The Past and Present Infrared Spectrum of BD+30 3639 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 The Past and Present Infrared Spectrum of BD+30 3639, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Past and Present Infrared Spectrum of BD+30 3639 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-604667