What is the cause of this unusual parabolic structure? This illuminated cavity, known as LDN 1471, was created by a newly forming star, seen as the bright source at the peak of the parabola. This protostar is experiencing a stellar outflow which is then interacting with the surrounding material in the Perseus Molecular Cloud, causing it to brighten. We see only one side of the cavity -- the other side is hidden by dark dust. The parabolic shape is caused by the widening of the stellar-wind blown cavity over time. Two additional structures can also be seen either side of the protostar; these are known as Herbig-Haro objects, again caused by the interaction of the outflow with the surrounding material. What causes the striations on the cavity walls, though, remains unknown. ESA’s Hubble Space Telescope after an original detection by the Spitzer Space Telescope.
LDN 1471: A Windblown Star Cavity
AI が生成した要約
LDN 1471は、新たに形成された星によって作られた放射状の構造で、星の風が周囲の物質と相互作用して明るくなっています。このプロトスターはパラボラの頂点に位置し、もう一方の側は暗い塵に隠れています。時間の経過とともに星風によって広がることでパラボラ形状が形成され、プロトスターの両側にはHerbig-Haroオブジェクトも見られますが、キャビティの壁のストライエーションの原因は不明です。観測はESAのハッブル宇宙望遠鏡によって行われました。