Table 2.
Spectroscopic follow-up observations of the 16 new quasars.
| Name | RA | Dec | Date | Telescope/Instrument | Exp. time | z |
|---|---|---|---|---|---|---|
| deg | deg | seconds | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| LS J145109.79−044542.12 | 222.79078 | -4.76170 | 2022 May. 31 a | Mayall/DESI | 3363 | 6.16 |
| LS J230129.72−153020.4 | 345.37384 | -15.50566 | 2024 Oct. 4 | Hale/DBSP | 1200 | 6.32 |
| LS J020801.31−664713.7 | 32.00547 | -66.78714 | 2024 Oct. 25 | NTT/EFOSC2 | 5400 | 6.09 |
| LS J222343.78−381526.8 | 335.93243 | -38.25753 | 2024 Oct. 25 | NTT/EFOSC2 | 4800 | 6.36 |
| LS J000622.24−793548.1 | 1.55765 | 79.59670 | 2024 Oct. 28 | NTT/EFOSC2 | 3600 | 6.21 |
| LS J010449.12−685756.8 | 16.20466 | -68.96577 | 2024 Oct. 28 | NTT/EFOSC2 | 3000 | 6.38 |
| LS J103511.29−051537.9 | 158.79705 | -5.26053 | 2025 Feb. 16 | LBT/MODS2 b | 3000 | 6.09 |
| LS J113000.56+142043.97 | 172.50233 | 14.34555 | 2025 Feb. 21 | Hale/NGPS | 2700 | 6.28 |
| LS J133204.89+110208.94 | 203.02036 | 11.03582 | 2025 Apr. 20 | LBT/MODS | 3600 | 6.11 |
| LS J143510.65−105325.11 | 218.79436 | -10.89031 | 2025 Apr. 23 | LBT/MODS | 2700 | 6.13 |
| LS J114156.14+100636.90 | 175.48392 | 10.11025 | 2025 Apr. 23 | LBT/MODS | 2700 | 5.94 |
| LS J133014.01−402508.92 | 202.55836 | -40.41915 | 2025 May. 1 | Clay/LDSS3 | 1800 | 6.07 |
| LS J201119.04−443609.39 | 302.82931 | -44.60261 | 2025 May. 1 | Clay/LDSS3 | 1800 | 6.08 |
| LS J203704.37−515240.27 | 309.26819 | -51.87785 | 2025 May. 1 | Clay/LDSS3 | 2800 | 6.25 |
| LS J215501.13−511151.11 | 328.75473 | -51.19753 | 2025 May. 1 | Clay/LDSS3 | 1200 | 6.45 |
| LS J013938.24−520945.73 | 14.90935 | -52.16270 | 2025 Jul. 28 | NTT/EFOSC2 | 3600 | 6.05 |
Notes.
This source was confirmed as a quasar with DESI DR1 data release.
Note that although MODS is composed of two identical two-channel spectrographs, at the time of this observing run only MODS2 was available.
Col. (1): Quasar name with convention: “LS” for DESI Legacy Survey DR10, and then the coordinates in HMS and DMS format. Cols. (2) and (3): coordinates in degrees, Col. (4): Date of the observations; Col (5): Telescope and instrument used for the optical spectroscopic follow-up; Col. (6) Total exposure time; Col. (7) spectroscopic redshift estimated with the spectrum fitting with an uncertainty of 0.03 (see Section 5).
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