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Table 2.

ssrAp star candidates found by our technique in the TESS Cycles 3 and 4 data.

Spectral Lines (b) TESS
TIC HD type V Teff(a) log g(a) roAp Bzrms/B0/Q0 Refs. Prot Refs. v sin i Refs. (c) Notes sectors
(mag) (K) (cm s−2) (kG) (d) (km s−1)
32259138 138777 A3p SrEu 9.73 7350 3.90 2.1/–/– 1 25 1 51
36576010 216018 A7p SrEuCr 7.62 7750 4.05 roAp 1.4/5.6/6.8 2, 3 34.044 (d) 2 r 4 42
49159482 179246 B9p EuCr 9.82 8320 54
88202438 192686 A0p Si 8.88 11670 3.75 54
126975139 126297 A5p CrEuSr 9.49 7640 3.70 –/–/1.0 5 4 5 38
169382402 32996 A0p Si 6.04 10420 3.95 15 6 32
189996908 75445 A3p SrEu 7.12 7610 4.00 roAp 0.1/3.0/4.3 3 > 5000? 2 r 4 35
209708422 122379 A0p Si 10.45 13120 38
253260234 113149 A0p CrEu 10.14 10310 4.15 37–38
262956098 3988 A0pCrEuSr 8.35 8470 3.60 –/2.65/– 3 r 7 SB2 (7) 39
276354649 134874 B9p Si 7.67 12070 30 8 38
282468249 197077 A2p SiSr 9.38 8177 4.15 55
295698744 119933 A2p SrCrEu 9.27 6640 3.90 50
299000970 176232 A6p Sr 5.89 7520 3.85 roAp 0.4/–/1.3 9, 10–12 > 12 yr 9 2 11 53-54
334327860 111675 A0p EuSr 9.74 8620 3.80 38
354619745 201601 A9p SrEu 4.68 7490 4.05 roAp 1.0/3.9/5.2 3 > 97 yr 13 r 14 55
369969602 128472 A2p CrSrEu 9.87 7260 38
372617495 48953 Fp SrEu 6.80 6910 3.70 2.8939 (e) 15 44–45
380607580 119794 A2p CrEuSr 9.00 9350 3.95 38
405516045 110274 A0p EuCr 9.47 7770 3.85 –/4.0/– 3 265.3 16 r 16 37–38
405557056 155102 A2p Si 6.36 9100 3.80 38 17 51–53
410451752 66318 A0p EuCrSr 9.56 10130 4.10 6.6/14.5/– 3,18,19 r 18 34–37
425796196 138146 A0p EuCr 10.07 7980 3.95 39
438694338 117227 A0p CrSr 9.12 7800 4.35 b F 38
442695956 114568 A0p Si 10.18 12390 38

Notes. The stars are ordered by increasing TIC number, as given in Col. 1. The HD numbers are listed in Col. 2, as alternative identifications. The spectral types appearing in Col. 3 are from the Renson catalogue; the V magnitudes in Col. 4 were extracted from SIMBAD; the effective temperatures Teff and surface gravities log g in Cols. 5 and 6 were taken from the TIC. The roAp stars (see Sect. 3) are identified in Col. 7. Column 8 presents the magnetic data available in the literature, with the relevant references in Col. 9. The values of up to three magnetic moments are given; all of them correspond to the mean of the respective moment over a rotation period (if known and adequately sampled by the existing measurements) or over the observations that have been obtained (otherwise). The first one is the root-mean square longitudinal magnetic field, ⟨Bzrms, as defined by Bohlender et al. (1993). In essence, this is the quadratic mean of the mean longitudinal magnetic field (the line-intensity weighted average over the stellar disc of the component of the magnetic vector along the line of sight). The second one is the average value B0 over a rotation cycle of the mean magnetic field modulus ⟨B⟩ (that is, the same quantity as listed in Col. 3 of Table 13 of Mathys 2017). The third field moment, Q0, is the average value over a rotation period of the mean quadratic magnetic field ⟨Bq⟩; this is the same quantity as appearing in Col. 10 of Table 13 of Mathys (2017). The period values from the literature appear in Col. 10. They come from the references specified in Col. 11. Column 12 contains the v sin i values (as numbers), when they could be found, or indications about the resolution or width of the spectral lines (as letters). The references from which this information originates appear in Col. 13. For some stars, a note was added in Col. 14. The last column indicates in which TESS 27-d sectors the data analysed in this study were obtained.

(a)

Values retrieved from the TIC where available.

(b)

r = resolved; b = broad.

(c)

F: the line width information is based on visual inspection of a FEROS spectrum of our collection.

(d)

This value of the period seems spurious. The star more likely has a rotation period vastly exceeding 6 yr, as first suggested by Mathys (2017). See text for details.

(e)

No low-frequency is seen in the TESS data. See text for details.

References. (1) Romanyuk et al. (2017); (2) Giarrusso et al. (2022); (3) Mathys (2017); (4) Mathys et al. (1997); (5) Ryabchikova & Romanovskaya (2017); (6) Abt & Morrell (1995); (7) Elkin et al. (2012); (8) Levato et al. (1996); (9) Sikora et al. (2019); (10) Ryabchikova et al. (2000); (11) Kochukhov et al. (2002); (12) Leone et al. (2003); (13) Bychkov et al. (2016); (14) Scholz (1979); (15) Wraight et al. (2012); (16) Freyhammer et al. (2008); (17) Zorec & Royer (2012); (18) Bagnulo et al. (2003); (19) Bagnulo et al. (2006).

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