Further evidence for disk accretion in FU Orionis objects

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164866· OSTI ID:6447787

Hartmann, L; Kenyon, S J

Optical and IR spectroscopy data on the T Tauri star FU Ori obtained with instrumentation at Kitt Peak and the Mt. Hopkins Multiple Mirror telescope were examined for double peaks predicted by a disk accretion model. The data, collected in January 1986, were used to calculate a mean extinction curve and optical spectra. Comparison of optical profiles were also recorded for V1057 Cyg and V1515 Cyg. The FU Ori data exhibited the double peak predicted by the disk model. A wavelength-dependent rotation rate that was observed is attributed to the absence of any companion star. Mass is instead being accreted onto a disk from remnant material from the star formation process. 19 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
• OSTI ID: 6447787
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 312; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
ERUPTIVE VARIABLE STARS
INFRARED SPECTRA
MATHEMATICAL MODELS
MOTION
ROTATION
SPECTRA
STAR ACCRETION
STAR EVOLUTION
STAR MODELS
STARS
T TAURI STARS
VARIABLE STARS
VISIBLE SPECTRA