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An interesting nebular object in LDN 288

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Abstract

In this paper the results of multiwavelength investigation of an unusual nebular object SNO 85 are presented. In 2MASS images this object looks like a star with a jet. In DSS2 R image the end of the jet is connected with an interesting symmetric structure, consisting of arcs and loops. Such a structure is seen also in the opposite direction from the central star; it favors the existence of two opposite jets, which repeat the rotation and precession movements of the central star. The results of 12CO observations of the dark nebula LDN 288, connected with SNO 85, are also given. From these observations the following results were obtained: SNO 85 is situated in a dense condensation and the neighbor B type star GSC 0625400181 is surrounded by a hollow cavity. The velocity of the dark cloud is ∼2.5 km/s and its distance is estimated as (380–990) pc. The object SNO 85 itself is associated with an IRAS point source IRAS 17547-1832, the infrared colors of this source are typical for a non-evolved source embedded in the dense dark cloud. This region is perhaps a star formation one because there is also another star with a straight jet in the vicinity of B type star GSC 0625400181.

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Authors and Affiliations

  1. V.A.Ambartsumian Byurakan Astrophysical Observatory, Armenia

    A. L. Gyulbudaghian

  2. Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago, Chile

    J. May

Authors
  1. A. L. Gyulbudaghian
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  2. J. May
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Published in Astrofizika, Vol. 49, No. 4, pp. 621–629 (August 2006).

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Gyulbudaghian, A.L., May, J. An interesting nebular object in LDN 288. Astrophysics 49, 530–537 (2006). https://doi.org/10.1007/s10511-006-0051-x

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  • DOI: https://doi.org/10.1007/s10511-006-0051-x

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