A Rare Edge-On View Reveals the Exact Vertical Recipe for Building Planets
In the Scorpius-Centaurus association, roughly 453 light-years from Earth, lies a structure known as "Gomez's Hamburger" (GoHam). While it appears as a singular anomaly, its value to astronomers lies in its geometry: the protoplanetary disk is oriented almost perfectly edge-on relative to our line of sight. This rare alignment transforms the disk into a natural cross-section, allowing researchers to observe the vertical distribution of matter that will eventually form a planetary system. Mapping the Vertical Divide Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, researchers mapped the distribution of gas and dust grains within the disk. The data, published in The Astrophysical Journal, reveals a distinct stratification of materials. Lighter gases, specifically carbon monoxide, are concentrated in the upper layers. In contrast, heavier sulfur-bearing molecules settle deeper into the disk, while the central midplane contains a dense concentration of millimeter-sized dust-the primary building blocks for future planets. The scale of the environment is immense, spanning approximately 93 billion miles (about 150 billion kilometers). The sheer volume of dust suggests that GoHam possesses enough raw material to potentially spawn multiple gas giants rather than a single isolated planet.
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