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Table 2.
Log of spectroscopic observations of NGC 4490−2011OT1, NGC 3437−2011OT1, and UGC 12307−2013OT1.
| Date | JD | Phase | Instrumental configuration | Range | Resolution |
|---|---|---|---|---|---|
| (dd/mm/yy) | (+2 400 000) | (days) ( ‡ ) | (nm) | (nm) | |
| NGC 4490−2011OT1 | |||||
| 18/08/11 | 55 792.39 | −5.8 | TNG + LRS + LRR | 510–1010 | 1.4 |
| 19/08/11 | 55 793.38 | −4.8 | TNG + LRS + LRB | 330–810 | 1.6 |
| 20/08/11 | 55 794.41 | −3.8 | NOT + ALFOSC + gm4 | 340–910 | 1.8 |
| 28/08/11 | 55 802.38 | +4.2 | TNG + LRS + LRB | 330–810 | 1.1 |
| 02/09/11 | 55 807.37 | +9.2 | WHT + ISIS + R300B/R158R | 320–1030 | 0.5/0.6 |
| 21/11/11 | 55 886.72 | +88.5 | Ekar1.82 + AFOSC + gm4 | 350–820 | 1.2 |
| 28/11/11 | 55 893.62 | +95.4 | Ekar1.82 + AFOSC + gm4 | 350–820 | 1.4 |
| 08/12/11 | 55 903.72 | +105.5 | NOT + ALFOSC + gm7/gm8 | 380–835 | 0.4/0.4 |
| 21/12/11 | 55 916.77 | +118.6 | WHT + ISIS + R300B/R158R | 300–1000 | 0.5/0.6 |
| 22/12/11 | 55 917.75 | +119.6 | NOT + ALFOSC + gm8 | 580–840 | 0.5 |
| 21/01/12 | 55 947.80 | +149.6 | OHP1.93 + CARELEC + 300T/mm | 400–730 | 0.5 |
| 23/01/12 | 55 950.42 | +152.2 | Ekar1.82 + AFOSC + gm4 | 370–820 | 1.2 |
| 30/01/12 | 55 956.54 | +158.3 | Ekar1.82 + AFOSC + gm4 | 360–820 | 1.2 |
| 18/02/12 | 55 975.68 | +177.5 | Ekar1.82 + AFOSC + gm4 | 415–810 | 2.6 |
| 01/03/12 | 55 987.64 | +189.4 | NOT + ALFOSC + gm4 | 340–900 | 1.4 |
| 29/03/12 | 56 015.56 | +217.4 | Ekar1.82 + AFOSC + gm4 | 355–820 | 1.2 |
| 30/03/12 | 56 016.60 | +218.4 | CAHA2.2 + CAFOS + g200 | 385–1020 | 1.3 |
| 23/04/12 | 56 040.61 | +242.4 | CAHA2.2 + CAFOS + g200 | 410–1020 | 1.3 |
| 15/05/12 | 56 062.68 | +264.5 | LBT + MODS + G670L + GG495 | 490–1000 | 0.6 |
| NGC 3437−2011OT1 | |||||
| 17/01/11 | 55 578.60 | +3.9 | CAHA2.2 + CAFOS + g200 | 375–960 | 1.3 |
| 24/01/11 | 55 585.85 | +11.2 | NTT + EFOSC2 + gr.13 | 365–930 | 2.8 |
| 12/02/11 | 55 604.77 | +30.1 | NTT + EFOSC2 + gr.13 | 580–925 | 2.8 |
| 04/05/11 | 55 685.54 | +110.8 | WHT + ISIS + R300B/R158R | 310–1030 | 0.4/0.6 |
| UGC 12307−2013OT1 | |||||
| 01/08/13 | 56 505.60 | +24.0 ( * ) | Ekar1.82 + AFOSC + gm4 | 365–820 | 1.4 |
| 07/08/13 | 56 511.56 | +30.0 ( * ) | Ekar1.82 + AFOSC + gm4 | 365–820 | 1.4 |
| 26/08/13 | 56 530.74 | +49.1 ( * ) | SOAR + Goodman + RALC 300 + GG385 | 365–895 | 0.9 |
| 24/10/13 | 56 589.53 | +107.9 ( * ) | GTC + OSIRIS + R500R | 490–930 | 1.5 |
Notes. ( ‡ )Days from the blue maximum (in the V band); ( * )Days from the red maximum (in the V band).
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