The Symbiotic Nature of M2-9

Details The Symbiotic Nature of M2-9 The Symbiotic Nature of M2-9

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812715g&link_type=abstract

American Astronomical Society, AAS Meeting #218, #127.15; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present moderate resolution deep stellar spectra of the object Minkowski 2-9 (M2-9) also known as the "Butterfly" or the Twin-Jet Nebula. M2-9's central star has been identified as a symbiotic star because bright H-alpha and weaker [NII] emission lines have been seen in its spectra, and its near infrared flux is more similar to symbiotic stars than planetary nebulae. Our calibrated and extracted spectra show that the star has dozens of faint emission lines, and those lines probably arise in a very dense circumstellar envelope. We compare the features from the central star of M2-9 to some well-known symbiotic stars.

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