Is NGC 2024-IRS2 a Young Massive Star Surrounded by a Circumstellar Disk?

Details Is NGC 2024-IRS2 a Young Massive Star Surrounded by a Circumstellar Disk? Is NGC 2024-IRS2 a Young Massive Star Surrounded by a Circumstellar Disk?

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aspc..267..381l&link_type=abstract

Hot Star Workshop III: The Earliest Stages of Massive Star Birth. ASP Conference Proceedings, Vol. 267. Edited by Paul A. Crowth

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained an L'-band spectrum of the bright infrared source NGC 2024-IRS2. The near-infrared spectrum does not show any photospheric absorption lines, but only broad emission lines. The line ratios of hydrogen emission lines located in the L'-band strongly suggest that IRS2 is surrounded by a circumstellar disk. Whether this disk is a remnant of the formation process or built up due to the rapid rotation of this young massive star is not yet clear.

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