The Perseus-Taurus Shell is a near-spherical cavity in the interstellar medium, 500 light-years wide, located in the Perseus-Taurus constellations.[1] [2] A team from the Harvard Smithsonian Center for Astrophysics led by Catherine Zucker and Shmuel Bialy discovered the structure in 2021.[2] Scientists believe that it appeared following the explosions of ancient supernovae.[3][4][5] Molecular clouds surround the sphere-shape cavity.[6]
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References
edit- ^ "Astronomers discover enormous 'cavity' in the Milky Way being masked by a cosmic illusion". Live Science. 23 September 2021.
- ^ a b Bialy, Shmuel; Zucker, Catherine; Goodman, Alyssa; Foley, Michael M.; Alves, João; Semenov, Vadim A.; Benjamin, Robert; Leike, Reimar; Enßlin, Torsten (2021). "The Per-Tau Shell: A Giant Star-forming Spherical Shell Revealed by 3D Dust Observations". The Astrophysical Journal Letters. 919 (1): L5. arXiv:2109.09763. Bibcode:2021ApJ...919L...5B. doi:10.3847/2041-8213/ac1f95.
- ^ "Astronomers discover mysterious 500-light-year-wide 'cavity' in our Milky Way". Space.com. 23 September 2021.
- ^ "Astronomers discover enormous 'cavity' in the Milky Way being masked by a cosmic illusion". Live Science. 23 September 2021.
- ^ "'Superbubble' region of star formation was created by supernovae, study suggests". 11 October 2021.
- ^ "Gigantic Cavity in Space Sheds New Light on How Stars Form | Center for Astrophysics | Harvard & Smithsonian".
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