What Is Hatching in the Egg?

Details What Is Hatching in the Egg? What Is Hatching in the Egg?

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...528l.105j&link_type=abstract

The Astrophysical Journal, Volume 528, Issue 2, pp. L105-L108.

Astronomy and Astrophysics

Astronomy

30

Radio Continuum: Ism, Stars: Agb And Post-Agb

Scientific paper

We report VLA detections at 1.3, 2, and 3.6 cm of the Egg Nebula, RAFGL 2688. We resolve the source and find an inner 9" diameter core that is produced by ~0.01 Msolar of dust. It seems that the Egg Nebula experienced a major mass ejection, losing ~1 Msolar during the past <=1200 yr. The centimeter-wavelength emission is extended at a position angle of 53 deg, while the famous jets and lobes in the Egg Nebula lie along a position angle of 15 deg. The multiple symmetries in the Egg Nebula may occur because the rotation axis of the mass-losing star is not perpendicular to the orbital plane of the putative close binary. Between 3.6 cm and 350 μm, the dust opacity appears to vary as ν0.6, which can be explained if there are some grains with sizes at least as large as 0.5 cm.

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