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See detailVery low upper limits on the strength of interstellar lithium lines toward SN 1987 A
Baade, Dietrich; Magain, Pierre ULg

in Astronomy and Astrophysics (1988), 194

Seven CCD and eleven Reticon spectra of high spectral resolution and low noise have been carefully analysed in search for faint absorption lines due to neutral interstellar lithium lambda6708 Å along the ... [more ▼]

Seven CCD and eleven Reticon spectra of high spectral resolution and low noise have been carefully analysed in search for faint absorption lines due to neutral interstellar lithium lambda6708 Å along the line of sight to SN 1987A in the Large Magellanic Cloud. At the velocities of the strongest interstellar Ca II and Na I lines, no evidence of any interstellar feature has been found. An upper limit for the strongest components expected is 0.15 mÅ for both the Galaxy and the LMC. From these the authors infer elemental column densities N[SUB]Galaxy[/SUB] <= 2.6×10[SUP]11[/SUP]cm[SUP]-2[/SUP] and N[SUB]LMC[/SUB] <= 1.4×10[SUP]11[/SUP]cm[SUP]-2[/SUP] and gaseous elemental abundances (Li/H I)[SUB]Galaxy[/SUB] <= 7.7×10[SUP]-10[/SUP] and (Li/H I)[SUB]LMC[/SUB] <= 1.0×10[SUP]-10[/SUP] with an estimated uncertainty of the abundance limits of a factor of 4 (0.6 dex). [less ▲]

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See detailVery Low Upper Limits on the Strength of Interstellar Lithium Lines Toward Supernova 1987A
Baade, Dietrich; Magain, Pierre ULg

in Danziger, I. J. (Ed.) European Southern Observatory Astrophysics Symposia (1987)

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Detailed reference viewed: 5 (2 ULg)