Table 11
Stars with anomalously high abundances of O, Na, Mg, Al, or Si compared with Ca. For elements other than Ca, there are many values around or above [X/Fe] = +1.4.
| Star | [Fe/H] | [C/Fe] | [O/Fe] | [Na/Fe] | [Mg/Fe] | [Al/Fe] | [Si/Fe] | [Ca/Fe] | Cls. | Refs. | ||
|
|
||||||||||||
| HE 1012-1540 | –3.43 | 2.22 | 2.25 | 1.21 | 1.88 | 0.93 | 1.07 | 0.57 | no | 40 | ||
| HE 1327-2326 | –5.96 | 3.78 | 3.42 | 2.73 | 1.97 | 1.46 | ... | 0.44 | li | 35, 39 | ||
| CS 29498-043 | –3.54 | 2.09 | 2.43 | 1.47 | 1.75 | 0.27 | 0.82 | 0.16 | no | 25,11,12 | ||
| CS 22949-037 | –3.84 | 1.06 | 1.97 | 1.77 | 1.42 | –0.04 | 0.77 | 0.37 | no | 6, 14, 15, 40 | ||
|
|
||||||||||||
| CS 29528-028 | –2.86 | 2.77 | ... | 2.68 | 1.69 | ... | ... | 0.46 | b+ | 37 | ||
| HE 1447+0102 | –2.47 | 2.48 | ... | 1.07 | 1.43 | ... | ... | 0.88 | b+ | 37 | ||
| SDSS 1707+58 | –2.49 | 2.1 | ... | 2.71 | 1.13 | ... | ... | 0.79 | b+ | 41 | ||
| CS 29497-034 | –2.90 | 2.68 | ... | 1.48 | 1.02 | –0.01 | ... | 0.48 | rs | 5, 29, 37 | ||
|
|
||||||||||||
| CS 22942-019 | –2.60 | 2.1 | 0.97 | 1.44 | 0.65 | –0.35 | ... | 0.68 | s | 8, 12, 46 | ||
| CS 22958-042 | –2.85 | 3.15 | 1.35 | 2.85 | 0.32 | –0.85 | 0.15 | 0.36 | no | 33 | ||
| CS 29528-041 | –3.30 | 1.59 | 1.40 | 1.20 | 0.40 | –0.85 | –0.20 | 0.40 | b+ | 33 | ||
|
|
||||||||||||
| CS 29497-030 | –2.67 | 2.58 | 1.58 | 0.55 | 0.49 | –0.67 | -0.01 | 0.50 | s | 21, 27 | ||
| CS 31080-095 | –2.85 | 2.69 | 2.35 | –0.28 | 0.65 | –0.95 | 0.05 | 0.17 | b- | 33 | ||
| HE 0557-4840 | –4.75 | 1.65 | <3.09 | –0.16 | 0.25 | –0.61 | ... | 0.25 | li | 38 | ||
|
|
||||||||||||
| CS 30314-067 | –2.85 | 0.5 | ... | –0.08 | 0.42 | -0.10 | 0.80 | 0.22 | no | 10 | ||
| CS 29502-092 | –2.76 | 1.0 | ... | –0.01 | 0.37 | –0.77 | 0.84 | 0.27 | no | 10 | ||
Notes. The tenth column shows the classification of the CEMP stars according to Beers & Christlieb (2005): s = CEMP-s, rs = CEMP-rs, no = CEMP-no, b+ = stars with [Ba/Fe] > 1 with no Eu abundance, b- = stars with 0 < [Ba/Fe] < 1 with no Eu abundance, li = stars with only an upper limit for both the Eu and Ba abundances. The last column shows the abundance references, as enumerated below. For stars with more than one reference, the adopted value is the average or one of the references, according to criteria explained in the text.
References. (5) Hill et al. (2000); (6) Norris et al. (2001); (8) Preston & Sneden (2001); (10) Aoki et al. (2002a); (11) Aoki et al. (2002b); (12) Aoki et al. (2002c); (14) Depagne et al. (2002); (15) Norris et al. (2002); (21) Sivarani et al. (2004); (25) Aoki et al. (2004); (27) Ivans et al. (2005); (29) Barbuy et al. (2005); (33) Sivarani et al. (2006); (35) Aoki et al. (2006b); (37) Aoki et al. (2007); (38) Norris et al. (2007); (39) Frebel et al. (2008); (40) Cohen et al. (2008); (41) Aoki et al. (2008); (46) Masseron et al. (2010).
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