Astronomy:Cloud-9 (RELHIC)

From HandWiki
CL-9's observed column density isocontours (taken from Z23)

Cloud-9 is a REionization-Limited-H i Cloud (RELHIC), which may turn out to be a starless dark matter galaxy.[1] This RELHIC may have a mass 5 billion times that of the Sun and was found in the vicinity of the spiral galaxy M94, in the constellation Canes Venatici.[2]

References

  1. Benitez-Llambay, Alejandro; Navarro, Julio F. (September 2023). "Is a Recently Discovered H i Cloud near M94 a Starless Dark Matter Halo?" (in en). The Astrophysical Journal 956 (1): 1. doi:10.3847/1538-4357/acf767. ISSN 0004-637X. Bibcode2023ApJ...956....1B. 
  2. "Astronomers may have found a galaxy that's all dark matter, with no stars" (in en). https://www.skyatnightmagazine.com/apple-news/starless-dark-matter-galaxy-cloud-9.