Near-infrared imaging of LYNDS 1551 IRS 5

Details Near-infrared imaging of LYNDS 1551 IRS 5 Near-infrared imaging of LYNDS 1551 IRS 5

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...335..814h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 335, Dec. 15, 1988, p. 814-819.

Astronomy and Astrophysics

Astronomy

37

Early Stars, Infrared Imagery, Near Infrared Radiation, Pre-Main Sequence Stars, Reflection Nebulae, Image Resolution, Infrared Sources (Astronomy), Spatial Resolution

Scientific paper

High-spatial-resolution 1.6-micron (H) and 2.2-micron (K) images of the well-known young stellar object (YSO) L1551 IRS 5 reveal an extended, conically-shaped reflection nebula. The comparison of the images at the two wavelengths shows a shift in the position of the flux maximum, demonstrating that the H band maximum is not identical with the illuminating star. Morphological differences between the H band and K band images as well as a color map indicate that extinction effects in the reflection nebula are important. The results support a model that posits that, at H and K, the star in IRS 5 is surrounded by an optically thick disk and illuminates the inner wall of the nozzle created by the anisotropic mass outflow from the embedded young star.

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