Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...366..923m&link_type=abstract
Astronomy and Astrophysics, v.366, p.923-929 (2001)
Astronomy and Astrophysics
Astrophysics
38
Infrared: Stars, Stars: Agb And Post-Agb, Mass Loss, Planetary Nebulae: General, Dust, Extinction
Scientific paper
We present infrared spectroscopy and millimeter photometry and spectroscopy of the peculiar carbon star IRAS 09425-6040. The 2-15 mu m spectrum, as well as the CO millimeter line observations are typical for a (J-type) carbon star with moderate mass-loss rate. The 15-45 mu m spectrum is dominated by strong emission bands from Mg-rich and Fe-poor crystalline silicates. IRAS 09425-6040 has the highest abundance of crystalline silicates (75 per cent) observed in any source so far. The ISO data, combined with IRAS and millimeter wavelength photometry indicate the presence of large cold grains. The observations indicate that the carbon star IRAS 09425-6040 is surrounded by a stationary, massive, highly crystalline oxygen-rich dust disk which is depleted of gas. These properties are very similar to those of the disk seen in the Red Rectangle. We propose that IRAS 09425-6040 is the evolutionary progenitor of the central binary of the Red Rectangle nebula.
de Jong Teije
Kaufl Hans Ulrich
Loup Caroline
Molster Frank J.
Nyman L.-AA.
No associations
LandOfFree
IRAS 09425-6040: A carbon star surrounded by highly crystalline silicate dust 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 IRAS 09425-6040: A carbon star surrounded by highly crystalline silicate dust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IRAS 09425-6040: A carbon star surrounded by highly crystalline silicate dust will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1711236