Complex Organic Materials in the HR 4796A Disk?

Details Complex Organic Materials in the HR 4796A Disk? Complex Organic Materials in the HR 4796A Disk?

2008-08-29

arxiv.org/abs/0808.4113v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures; To be published in The Astrophysical Journal Letters

Scientific paper

10.1086/592961

The red spectral shape of the visible to near infrared reflectance spectrum of the sharply-edged ring-like disk around the young main sequence star HR 4796A was recently interpreted as the presence of tholin-like complex organic materials which are seen in the atmosphere and surface of Titan and the surfaces of icy bodies in the solar system. However, we show in this Letter that porous grains comprised of common cosmic dust species (amorphous silicate, amorphous carbon, and water ice) also closely reproduce the observed reflectance spectrum, suggesting that the presence of complex organic materials in the HR 4796 disk is still not definitive.

Affiliated with

Also associated with

No associations

Rating

Complex Organic Materials in the HR 4796A Disk? 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 Complex Organic Materials in the HR 4796A Disk?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complex Organic Materials in the HR 4796A Disk? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-543498