Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.320..336r&link_type=abstract
Nature (ISSN 0028-0836), vol. 320, March 27, 1986, p. 336-338. Research supported by the Danish Astronomical Board and Danish Sp
Astronomy and Astrophysics
Astronomy
51
Early Stars, Molecular Clouds, Nebulae, Stellar Evolution, Stellar Radiation, Astronomical Maps, Carbon Monoxide, Infrared Photometry, Molecular Flow, Orion Nebula
Scientific paper
The sudden appearance of a highly variable, conical nebula (Object 50) 1.5 arcmin south of a 250 solar luminosity infrared source in the southern part of the L1641 cloud in Orion is reported. The nebula coincides with the edge of the approaching lobe of a 100,000-yr-old bipolar molecular outflow. Variability of the infrared source generates light pulses observed to propagate through the surrounding ambient cloud, producing a fluctuating illumination pattern. This emission may represent the first optical radiation to have emerged from this newborn star.
Bally John
Reipurth Bo
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