Beehive Proplyd
Authors: Susanne M Hoffmann
Beehive Proplyd is a modern star name adopted by the International Astronomical Union in the IAU-Catalog of Star Names (IAU-CSN). Its origin is modern astrophysics English. It is the name of the Herbig-Haro Object HH540 in constellation Orion.
Concordance, Etymology, History
The protoplanetary disk (proplyd) in the Great Orion Nebula was nicknamed "Beehive" in a 2005 paper by Bally+ due to its inner structure with multiple bows.[1] They reason for their naming:
The ionization front of this proplyd has a remarkable morphology not seen in any other object in Orion. The irradiated northern rim of this proplyd exhibits a set of coaxial rings centered on the axis of the outflow emerging from the young central star. These rings lie in planes roughly parallel to the orientation of the circumstellar disk surrounding the star, which is clearly seen in silhouette against background nebular light. The rings give this giant proplyd its distinctive appearance, which resembles a large beehive.
The object itself is not visible, as it is hidden in the nebula, but as a protoplanetary disk is - by definition - surrounding a young star, there is a star inside. It is classified as a high velocity object since O'Dell and Henney 2008 (2008AJ....136.1566O[2]).
The vertical axis points toward P.A. = 355.3◦. The inner silhouette disk is discernible around the central star, as are two microjets, the lower (southern and opposite to the ionizing star θ 1Ori C) being brighter. The ripples in the ionized shell are probably caused by irregularities in the rate of mass loss within the microjets.
(...)
comparisons indicate that the Beehive proplyd quantitatively behaves like the inner region proplyds in spite of its much greater distance from θ 1Ori C and its bizarre appearance
The name is taken up in several papers in 2010 and 2015.
Mythology
no mythology
IAU Working Group on Star Names
The name was adopted by the IAU WGSN in 2026, as it has been in popular use among astrophysicists and listed in SIMBAD already.
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InfoCard1 -
InfoCard2
Weblinks
Reference
- References (general)
- References (early modern)
- Ian Ridpath's website (Star Tales )
- ↑ 1.0 1.1 Bally, J., Licht, D., Smith, N., and Walawender, J., “Outflows in the Orion Nebula: HH 540 from the Beehive Proplyd”, <i>The Astronomical Journal</i>, vol. 129, no. 1, IOP, pp. 355–362, 2005. doi:10.1086/426324.
- ↑ O'Dell, C. R. and Henney, W. J., “High Spatial Velocity Features in the Orion Nebula,”, <i>The Astronomical Journal</i>, vol. 136, no. 4, IOP, pp. 1566–1586, 2008. doi:10.1088/0004-6256/136/4/1566.
