Characterizing the Planet Forming Region Around V1331 Cyg

Details Characterizing the Planet Forming Region Around V1331 Cyg Characterizing the Planet Forming Region Around V1331 Cyg

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542808d&link_type=abstract

American Astronomical Society, AAS Meeting #215, #428.08; Bulletin of the American Astronomical Society, Vol. 42, p.346

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations of the gaseous component of inner disks (i.e., in the planet formation region) can provide unique insights into the roles that disks play in star and planet formation, by probing the physical and chemical conditions in disks. Recent Spitzer observations show that emission from water, OH, and organic molecules (C2H2, HCN, and CO2) are commonly present in the mid-IR spectra of T Tauri stars, and point to an origin in the terrestrial planet region of the disk (T 300-800 K, R 0.5 - few AU). We present L-band spectra at high resolution (R = 20,000) of V1331 Cyg, an intermediate mass object (spectral type A8-G5) that shows strong OH and water emission. At the high velocity resolution of our observations, we can resolve individual emission lines despite the high line density of the emission. By comparing the observed spectra with synthetic disk models we probe the nature of the accretion mechanism in the disk from the temperature, column density, and line broadening of the water emission that is present. We also model the strong OH emission in our observations to a) probe the disk photochemistry from the abundance ratio with water, and b) characterize the OH excitation mechanism from the ratio of different line strengths. Finally, we open a new window onto the nature of disk chemistry by detecting or setting detection limits on organic species (e.g. HCN, C2H2, H2CO) that may be present in the inner disk region.

Affiliated with

Also associated with

No associations

Rating

Characterizing the Planet Forming Region Around V1331 Cyg 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 Characterizing the Planet Forming Region Around V1331 Cyg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characterizing the Planet Forming Region Around V1331 Cyg will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-967614