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Astron. Astrophys. 326, 1076-1080 (1997)

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On the near-infrared halo of Elias 1

Martin Haas 1, Christoph Leinert 1 and Andrea Richichi 2

1 Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
2 Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy

Received 20 January 1997 / Accepted 2 June 1997


We present new near-infrared speckle interferometric observations of the young stellar object Elias 1. The emission is resolved into a narrow east-west elongated blue halo (FWHM about 0 [FORMULA] 2x1 [FORMULA] 0) and an unresolved core (FWHM [FORMULA] 0 [FORMULA] 2). Previously, Kataza and Maihara (1991) had inferred an east-west elongated optically thin disk within which the NIR light is directly scattered. Adding new pieces to the puzzle may alter the scenario in favor of scattering in bipolar lobes with a polar axis oriented east-west.

Key words: stars: pre-main sequence-stars: circumstellar matter - stars: Elias 1 - infrared: stars

Send offprint requests to: M. Haas

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© European Southern Observatory (ESO) 1997

Online publication: April 8, 1998