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A small spiral galaxy discovered at 21 centimeters in a cosmic void

Journal Article · · Astrophysical Journal; (USA)
DOI:https://doi.org/10.1086/185592· OSTI ID:6966803
;  [1]
  1. Maryland Univ., College Park (USA)
Redshift surveys of magnitude-limited samples of galaxies show that there are large volumes of space that are devoid of bright galaxies. However, the distribution of low surface brightness, faint objects is not as well determined by these surveys. Over 500 lines of sight through the void at alpha between 23 h and 01 h, delta between 30 deg and 33 deg have been searched for sources of 21 cm emission, using the NRAO 300 foot (91 m) telescope. A source well in front of the back wall of the void was discovered. Follow-up observations with the VLA and the Kitt Peak 4 m telescope indicate that this object is a small, low surface brightness spiral galaxy. 13 refs.
OSTI ID:
6966803
Journal Information:
Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 347; ISSN ASJOA; ISSN 0004-637X
Country of Publication:
United States
Language:
English

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