A double star formation region associated with the biconical cometary nebula CLN 138 is studied. 12CO(1-0) observations of a molecular cloud associated with this object reveal the existence of several molecular clouds in this region, as well as the existence of red and blue molecular outflows. Several new Herbig-Haro objects are found, two of which have undergone a luminosity increase of at least 8m. The first star formation region is basically embedded in the molecular cloud; most of the stars in it are infrared stars and many have dust envelopes. The second star formation region has already left the molecular cloud; it has no IR stars and few of its stars have dust clouds.
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Translated from Astrofizika, Vol. 59, No. 3, pp. 403-412 (August 2016).
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Gyulbudaghian, A.L. The Object CLN 138 – a Double Star-Formation Region. Astrophysics 59, 360–368 (2016). https://doi.org/10.1007/s10511-016-9441-x
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DOI: https://doi.org/10.1007/s10511-016-9441-x