We present Hubble Space Telescope ( HST ) Near-Infrared Camera and Multi-object Spectrometer ( NICMOS ) observations of the reflection nebulosity associated with the T Tauri star HH 30 .
The images show the scattered light pattern characteristic of a highly inclined , optically thick disk with a prominent dustlane whose width decreases with increasing wavelength .
The reflected nebulosity exhibits a lateral asymmetry in the upper lobe on the opposite side to that reported in previously published Wide Field Planetary Camera 2 ( WFPC2 ) images .
The radiation transfer model which most closely reproduces the data has a flared accretion disk with dust grains larger than standard interstellar medium grains by a factor of approximately 2.1 .
A single hotspot on the stellar surface provides the necessary asymmetry to fit the images and is consistent with previous modeling of the light curve and images .
Photometric analysis results in an estimated extinction of A _ { V } \gtrsim 80 ; however , since the photometry measures only scattered light rather than direct stellar flux , this a lower limit .
The radiative transfer models require an extinction of A _ { V } = 7 , 900 .