Uniqueness and evolutionary status of MWC349A

Vladimir Strelnitski, Kamber Schwarz, John H Bieging, Josh T. Fuchs, Gary Walker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

MWC349A, which had remained an ordinary member of the MWC catalog for a few decades, is now known as: (1) the brightest stellar source of radio continuum; (2) the only known high-gain natural maser in hydrogen recombination lines; and (3) the only strictly proven natural high-gain laser (in IR hydrogen recombination lines). These phenomena seem to occur in the circumstellar disk seen almost edge-on. They help us understand the structure and kinematics of the disk. The evolutionary status of MWC 349A is still debated: a young HAeBe star with a preplanetary disk or an old B[e] star or even a protoplanetary nebula? We discuss new observational data obtained at the Maria Mitchell Observatory and elsewhere which may cast light on this issue.

Original languageEnglish (US)
Title of host publicationProceedings of the International Astronomical Union
Pages632-633
Number of pages2
Volume6
EditionS272
DOIs
StatePublished - Jul 2010

Publication series

NameProceedings of the International Astronomical Union
NumberS272
Volume6
ISSN (Print)17439213
ISSN (Electronic)17439221

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uniqueness
hydrogen recombinations
high gain
maria
stars
masers
nebulae
catalogs
casts
observatories
kinematics
continuums
lasers

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Strelnitski, V., Schwarz, K., Bieging, J. H., Fuchs, J. T., & Walker, G. (2010). Uniqueness and evolutionary status of MWC349A. In Proceedings of the International Astronomical Union (S272 ed., Vol. 6, pp. 632-633). (Proceedings of the International Astronomical Union; Vol. 6, No. S272). https://doi.org/10.1017/S1743921311011653

Uniqueness and evolutionary status of MWC349A. / Strelnitski, Vladimir; Schwarz, Kamber; Bieging, John H; Fuchs, Josh T.; Walker, Gary.

Proceedings of the International Astronomical Union. Vol. 6 S272. ed. 2010. p. 632-633 (Proceedings of the International Astronomical Union; Vol. 6, No. S272).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Strelnitski, V, Schwarz, K, Bieging, JH, Fuchs, JT & Walker, G 2010, Uniqueness and evolutionary status of MWC349A. in Proceedings of the International Astronomical Union. S272 edn, vol. 6, Proceedings of the International Astronomical Union, no. S272, vol. 6, pp. 632-633. https://doi.org/10.1017/S1743921311011653
Strelnitski V, Schwarz K, Bieging JH, Fuchs JT, Walker G. Uniqueness and evolutionary status of MWC349A. In Proceedings of the International Astronomical Union. S272 ed. Vol. 6. 2010. p. 632-633. (Proceedings of the International Astronomical Union; S272). https://doi.org/10.1017/S1743921311011653
Strelnitski, Vladimir ; Schwarz, Kamber ; Bieging, John H ; Fuchs, Josh T. ; Walker, Gary. / Uniqueness and evolutionary status of MWC349A. Proceedings of the International Astronomical Union. Vol. 6 S272. ed. 2010. pp. 632-633 (Proceedings of the International Astronomical Union; S272).
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