THE SEARCH FOR EXTRAGALACTIC LITHIUM HYDRIDE
Journal Article
·
· Astrophysical Journal
We have conducted Combined Array for Research in Millimeter-wave Astronomy observations of LiH, in absorption, toward three quasars. These quasars, B0218+357, PKS1830-211, and PKS0201+113, have redshifts of z = 0.685 - 3.387, and shift the LiH J = 1-0 transition to the 1 mm and 3 mm wavelength bands, where atmospheric absorption is sharply reduced from that predominating near the rest frequency of 443 GHz. We report a 3{sigma} detection of LiH toward B0218+357 with a column density of 1.4 x 10{sup 12} cm{sup -2} and place an upper limit on the {sup 6}Li/{sup 7}Li ratio of <0.16. LiH was not detected toward any other source.
- OSTI ID:
- 21582966
- Journal Information:
- Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 738; ISSN ASJOAB; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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