Detailed study of the Lynds 1551 star formation region

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Astrophys. J., Suppl. Ser.; (United States)

DOI:https://doi.org/10.1086/191287· OSTI ID:6539358

Stocke, J T; Hartigan, P M; Strom, S E; Strom, K M; Anderson, E R

The results of an optical spectroscopic and photometric study of the star formation region Lynds 1551 and the young stellar object IRS 5 and a high-resolution spectroscopic study of the Herbig-Haro (HH) objects associated with the outflow from this region are reported. The results further establish IRS 5 as the source of the reflected light in the region. Spectral studies suggest that the spectrum of IRS 5 is dominated by the light from an accretion disk analogous to those characterizing objects of the rare class of FU Orionis objects. Analysis of high and medium resolution spectra of the optical jet emanating from IRS 5 strongly suggest that the jet HH objects are the bow shock interfaces between two winds coming from the IRS 5 region. The high-velocity wind is inferred to have a velocity of 440 km/s, and is identified as the stellar wind. High-density clumps in the stellar wind shock a lower-density, but much more pervasive second wind which has an inferred velocity of about 160 km/s. 69 references.

• Research Organization: Colorado Univ., Boulder (USA); Arizona Univ., Tucson (USA); Massachusetts Univ., Amherst (USA); National Solar Observatory, Tucson, AZ (USA)
• OSTI ID: 6539358
• Journal Information: Astrophys. J., Suppl. Ser.; (United States), Journal Name: Astrophys. J., Suppl. Ser.; (United States) Vol. 68; ISSN APJSA
• 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
BALMER LINES
ELECTROMAGNETIC RADIATION
FLUID FLOW
GAS FLOW
INTERSTELLAR SPACE
LUMINOSITY
NEBULAE
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
PLASMA JETS
PROTOSTARS
RADIATIONS
SHOCK WAVES
SPACE
SPECTROSCOPY
STAR EVOLUTION
STELLAR ACTIVITY
STELLAR WINDS
VISIBLE RADIATION