Reipurth 50: The 12 µm IRAS Image

This is the 12µm IRAS image.

You may also see images at other wavelengths by clicking on the colorbar at a point above any of the dashed arrows (which point to other regions of the spectrum at which images are available). The solid arrow shows the spectral region you are seeing now. This is not intended to be a linear scale in wavelength, but only a rough guide to the wavelength of the observation.

Reipurth 50

This object was discovered by Reipurth (1985) in his survey of nebulous objects in the Orion region. It was first discussed by Reipurth & Bally (1986) as the source of a powerful molecular outflow whose associated reflection nebulosity has only recently appeared in the blue lobe of the outflow. Polarization studies (Scarrott & Wolstencroft 1988) and near infrared imaging (Casali 1991) have demonstrated that the nebula is illuminated by the IRAS source. Recent longslit spectroscopic work (Strom & Strom 1993) has demonstrated that Re 50 is probably a heavily embedded FU Ori object (Hartmann, Kenyon & Hartigan 1993) currently in outburst.

This mid-infrared pseudocolor image was made using a color map having white is the brightest, then blue, green, yellow, red and black at the faint end, to display the intensity of each pixel. Since there is only one object in this field, the image, without flux measurements does not convey much information. However you can just see the warn dust in the blue lobe of the outflow, to the southeast of Re 50. Comparing this image to the shorter wavelength images shows that the dust emitting at 12µm is closer to the star than the dust that is scattering the optical and near infrared light toward us.

We do not show a 60µm image for this object since there is only one source and the degraded spatial resolution at 60µm results in a very uninteresting image!

If you wish more information about these images, a page is available for your perusal. You may also return to the overview page.


Casali, M. 1991, MNRAS, 248, 229

Hartmann, L., Kenyon, S.J. & Hartigan, P. 1993 in Protostars and Planets III, ed E.H. Levy & J.I. Lunine (Univ. AZ Press)

Reipurth, B. 1985, A&AS, 61, 319

Reipurth, B. & Bally, J. 1986, Nature, 320, 336

Scarrott, S.M. & Wolstencroft, R.D. 1988, MNRAS, 231, 1019

Strom, K.M. & Strom, S.E. 1993, ApJ Letters, 412, L63

© 2000

CO map