Table 1
Spectral types, photometry, and luminosities for the stars studied.
| Star | Instrument | Observation date | S∕N | Spectral type | J | K | Mbol |
|---|---|---|---|---|---|---|---|
| AM Cen | GEMINI-S/Phoenix | 2016-May-18 | 110 | SC | 3.22 | 1.75 | −5.29 |
| BB Tau | TNG/Giano-b | 2017-Nov-21 | 157 | SC7 | 4.97 | 3.07 | −5.03 |
| IY Hya | GEMINI-S/Phoenix | 2017-Oct-24 | 157 | C | 5.91 | 1.96 | −6.90 |
| TNG/Giano-b | 2018-Jul-9 | 112 | |||||
| CAHA/Carmenes(a) | 2018-Mar-30 | 108 | |||||
| R Cmi | TNG/Giano-b | 2017-Nov-21 | 173 | SC4 | 3.69 | 2.42 | −5.54 |
| R Gem | TNG/Giano-b | 2017-Nov-21 | 310 | SC/S3 | 2.53 | 1.46 | −4.65 |
| RX Sct | GEMINI-S/Phoenix | 2017-Nov-3 | 185 | C5 | 3.44 | 1.65 | −4.89 |
| S Cam | TNG/Giano-b | 2017-Nov-9 | 96 | C | 4.18 | 2.53 | −5.12 |
| Sgr 9 | GEMINI-S/Phoenix | 2017-Oct-31 | 56 | C | 12.09 | 9.42 | −4.81 |
| SZ Sgr | GEMINI-S/Phoenix | 2017-Nov-3 | 200 | C5 | 3.73 | 2.15 | −5.72 |
| V372 Mon | TNG/Giano-b | 2018-Mar-26 | 105 | SC7 | 4.78 | 3.00 | −4.50 |
| ZZ Gem | TNG/Giano-b | 2018-Apr-16 | 156 | C | 4.80 | 2.98 | −4.49 |
| HD 121477 | TNG/Giano-b | 2018-Apr-16 | 245 | CH/Ba4 | 5.12 | 4.15 | −2.36 |
| HD 123396 | GEMINI-S/Phoenix | 2009-Jun-24 | 200 | CH/Ba | 6.88 | 6.14 | −0.70 |
Notes. Spectral types and IR photometry are taken from the SIMBAD database. (a) The spectrum of IY Hya obtained with Carmenes was only to derive its s-element abundances. However, because of the difficulty in the analysis of its IR spectrum at ~2.3 μm, we discarded this star in the final chemical analysis (see text).
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