Statistics
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21930305g&link_type=abstract
American Astronomical Society, AAS Meeting #219, #303.05
Statistics
Scientific paper
The Herschel Space Observatory has enabled us to probe the physical conditions of outer disks, envelopes, and outflows of young stellar objects, including embedded objects, Herbig Ae/Be disks, and T Tauri disks. We will report on results from three projects, DIGIT, WISH, and FOOSH. The DIGIT (Dust, Ice, and Gas in Time) program (PI: Neal Evans) utilizes the full spectral range of the PACS instrument to explore simultaneously the solid and gas-phase chemistry around sources in all of these stages. WISH (Water in Star Forming Regions with Herschel, PI Ewine van Dishoeck) focuses on observations of key lines with HIFI and line scans of selected spectral regions with PACS. FOOSH (FU Orionis Objects Surveyed with Herschel, PI Joel Green) studies FU Orionis objects with full range PACS and SPIRE scans. DIGIT includes examples of low luminosity protostars, while FOOSH studies the high luminosity objects during outburst states. Rotational ladders of highly excited CO and OH emission are detected in both disks and protostars. The highly excited lines are more commonly seen in the embedded phases, where there appear to be two temperature components. Intriguingly, water is frequently detected in spectra of embedded sources, but not in the disk spectra. In addition to gas features, we explore the extent of the newly detected 69 um forsterite dust feature in both T Tauri and Herbig Ae/Be stars. When analyzed along with the Spitzer-detected dust features, these provide constraints on a population of colder crystalline material. We will present some models of individual sources, as well as some broad statistics of the emission from these stages of star and planet formation.
DIGIT OT Key Project Team
FOOSH OT1 Team
Green Joel D.
WISH GT Key Project Team
No associations
LandOfFree
Herschel Studies of the Evolution and Environs of Young Stars in the DIGIT, WISH, and FOOSH Programs 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 Herschel Studies of the Evolution and Environs of Young Stars in the DIGIT, WISH, and FOOSH Programs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herschel Studies of the Evolution and Environs of Young Stars in the DIGIT, WISH, and FOOSH Programs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1579819