2020MNRAS.494.5682S

Query : 2020MNRAS.494.5682S

2020MNRAS.494.5682S - Mon. Not. R. Astron. Soc., 494, 5682-5703 (2020/June-1)

A magnetic snapshot survey of F-type stars.

SEACH J.M., MARSDEN S.C., CARTER B.D., NEINER C., FOLSOM C.P., MENGEL M.W., OKSALA M.E. and BUYSSCHAERT B.

Abstract (from CDS):

We present a spectropolarimetric magnetic snapshot survey of 55 stars which includes 53 F-type stars ranging from spectral types F0 to F9 plus 2 chemically peculiar stars β CrB, and δ Cap. We look for magnetic fields in stars spanning a range of effective temperatures where the transition from fossil to dynamo magnetic fields is believed to occur. High-resolution spectropolarimetry using circularly polarized spectra is used to look for a magnetic detection in the Stokes V profile, determine the mean longitudinal magnetic field (Bl), and to look for correlations with stellar parameters. Surface magnetic fields are detected on 14 F-stars, and present in every spectral class from F3V-F9V ranging in strength from 0.3 ± 0.1 G (36 UMa, F8V) to 8.3 ± 0.9 G (h Dra, F8V). Thus we find photospheric magnetic fields are present in stars as early as spectral type F3V with an outer convection zone thickness less than a few per cent of the stellar radius.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: early-type - stars: late-type - stars: magnetic field

Simbad objects: 71

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Number of rows : 71
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * 6 Cet PM* 00 11 15.8580395472 -15 28 04.720468404 5.35 5.38 4.89     F8VFe-0.8CH-0.5 312 0
2 * eta Cas PM* 00 49 06.2945942922 +57 48 54.638239716 4.04 4.02 3.44 2.94 2.58 F9V 637 0
3 * alf Hyi PM* 01 58 46.1385834212 -61 34 11.359751511 3.33 3.13 2.84 2.55 2.39 F0IV 215 0
4 * sig Cet ** 02 32 05.1877984910 -15 14 41.653561505 5.19 5.20 4.75 4.34 4.07 F5V 205 0
5 * eps Cet SB* 02 39 33.7974128402 -11 52 19.551632148   5.33 4.87     F5V 204 0
6 * gam Cet ** 02 43 18.03910 +03 14 08.9390 3.63 3.56 3.47 3.36 3.32 A2Vn+F4V 179 0
7 * alf For PM* 03 12 04.5298039833 -28 59 15.439152331 4.41 4.51 3.98 3.39 3.08 F6V 272 0
8 V* DO Eri a2* 03 55 16.1313315312 -12 05 56.727712752 6.35 6.32 6.00     A9VpSrEuCr 397 0
9 * gam Lep PM* 05 44 27.7906169580 -22 26 54.187756254 4.08 4.07 3.60 3.15 2.89 F6V 428 0
10 * eta Lep PM* 05 56 24.2934904501 -14 10 03.718335613 4.05 4.05 3.72 3.39 3.23 F2V 336 0
11 * gam Gem SB* 06 37 42.71050 +16 23 57.4095 1.98 1.92 1.92 1.86 1.87 A1.5IV+ 510 1
12 * ksi Gem PM* 06 45 17.3644854477 +12 53 44.141855267 3.85 3.79 3.36 2.97 2.74 F5IV-V 218 0
13 * del Gem SB* 07 20 07.3745658105 +21 58 56.294578663 3.91 3.87 3.53 3.17 2.98 F2VkF0mF0 243 0
14 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1864 0
15 * rho Pup dS* 08 07 32.6488235 -24 18 15.567946 3.43 3.24 2.81 2.46 2.25 F5IIkF2IImF5II 301 0
16 * zet01 Cnc A PM* 08 12 12.7204108896 +17 38 51.509311944   5.85 5.31     ~ 120 0
17 * zet Cnc ** 08 12 12.72637 +17 38 51.9615           F8V+G0V 181 0
18 * 10 UMa SB* 09 00 38.38067 +41 46 58.6051 4.440 4.390 3.960 3.57 3.35 F3V+G5V 346 0
19 * sig02 UMa ** 09 10 23.54597 +67 08 02.4642   5.29 4.80     F7V 171 0
20 * psi Vel ** 09 30 41.99958 -40 28 00.2616 3.89 3.96 3.60 3.24 3.02 F3VFe-0.7 118 0
21 * h UMa PM* 09 31 31.7080711355 +63 03 42.695823224 4.10 4.00 3.67 3.33 3.15 F0V 136 0
22 * tet UMa PM* 09 32 51.4309337983 +51 40 38.333310508 3.67 3.64 3.18 2.74 2.47 F7V 413 0
23 HD 84117 PM* 09 42 14.4162029298 -23 54 56.042043626   5.47 4.94     F9V 204 0
24 * ups UMa dS* 09 50 59.3580562703 +59 02 19.441043584 4.19 4.10 3.81 3.47 3.31 F0 196 0
25 * 36 UMa PM* 10 30 37.5792656400 +55 58 49.939689252       4.5   F8V 328 1
26 * iot Leo SB* 11 23 55.45273 +10 31 46.2195   4.35   3.8   F3V 274 0
27 * 17 Crt ** 11 32 16.40407 -29 15 39.6768           F8V+F8V 26 0
28 * 17 Crt A PM* 11 32 16.4044856112 -29 15 39.679672896   6.11 5.58     F8V 41 0
29 V* V816 Cen dS* 11 37 37.0409608152 -46 42 34.877876832 8.99 8.79 8.03     F8/G0p 320 0
30 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 929 0
31 * alf Crv PM* 12 08 24.8172764085 -24 43 43.952148016   4.33 4.01     F1V 180 0
32 * alf Com ** 13 09 59.28520 +17 31 46.0389 4.71 4.77 4.32 4.1   F5V+F6V 202 0
33 HD 115226 a2* 13 18 00.0189897768 -72 57 00.947433276   8.84 8.50     ApSr(Eu) 37 0
34 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 346 0
35 * tau Boo Ro* 13 47 15.7381720026 +17 27 24.809555600 5.02 4.98 4.49 4.09 3.85 F7IV-V 988 1
36 * sig Boo PM* 14 34 40.8173867232 +29 44 42.457673940 4.76 4.84 4.47 4.13 3.94 F4VkF2mF1 600 0
37 * ksi Boo BY* 14 51 23.37993 +19 06 01.6994 5.618 5.370 4.593 3.91 3.48 G7Ve+K5Ve 474 0
38 * eps Lib SB* 15 24 11.8837924176 -10 19 20.203874400   5.358 4.920     F4V 145 0
39 * bet CrB a2* 15 27 49.7540595700 +29 06 20.494640434 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 686 0
40 * del Ser A dS* 15 34 48.1452516144 +10 32 19.880250288   4.39 4.14     F0IV 64 0
41 * del Ser ** 15 34 48.14762 +10 32 19.9248           F0 57 0
42 * bet TrA PM* 15 55 08.5620636 -63 25 50.615531 3.19 3.14 2.85 2.53 2.38 F1V 161 0
43 * gam Ser PM* 15 56 27.1826577018 +15 39 41.809580382 4.31 4.34 3.84 3.37 3.13 F6V 558 0
44 * tet Dra SB* 16 01 53.3449795946 +58 33 54.901935955 4.630 4.520 4.000 3.56 3.31 F9V 293 0
45 * 20 Oph PM* 16 49 50.0177515608 -10 46 59.034574488   5.105 4.632     F7V 181 0
46 * h Dra SB* 16 56 01.6911695305 +65 08 05.296785878   5.36 4.88 4.6   F8V 209 0
47 * ome Dra SB* 17 36 57.0943076755 +68 45 28.681533966   5.23   4.5   F4V 168 0
48 * 58 Oph PM* 17 43 25.7935382141 -21 40 59.498912759   5.313 4.861     F5V 146 0
49 * chi Dra SB* 18 21 03.38255 +72 43 58.2518 4.010 4.070 3.580 3.14 2.83 F7V 400 1
50 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2687 1
51 * del Sct dS* 18 42 16.4268984096 -09 03 09.188922060   5.04 4.71     F2II-III 484 0
52 * gam CrA B PM* 19 06 25.1022191999 -37 03 49.332880204   7.06 6.42     F8/G1 46 0
53 * gam CrA ** 19 06 25.11014 -37 03 48.3901 4.75 4.73 4.21     F8V+F8V 54 0
54 * gam CrA A PM* 19 06 25.2146839530 -37 03 47.792348952   5.07 4.53     F8V 81 0
55 * del Aql ** 19 25 29.90139 +03 06 53.2061 3.72 3.68 3.36 3.11 2.95 F1IV-V(n) 239 0
56 HD 188774 dS* 19 55 10.0375808184 +41 17 10.271172480   9.05 8.81     A9IV 36 0
57 * bet Del SB* 20 37 32.94130 +14 35 42.3195 4.16 4.07 3.63 3.23 2.99 F5IV 279 0
58 * gam Del ** 20 46 39.39048 +16 07 27.6456           ~ 24 0
59 * del Equ SB* 21 14 28.8153077 +10 00 25.125878 4.98 4.99 4.49 4.06 3.78 F7(V)+G0(V) 323 0
60 * tau Cyg dS* 21 14 47.49252 +38 02 43.1441 4.140 4.120 3.730 3.38 3.14 F2IV 282 0
61 * gam Cap a2* 21 40 05.4454210419 -16 39 44.536313677 4.19 3.98 3.67 3.47 3.34 kF0hF1VmF2 195 0
62 * mu. Cyg ** 21 44 08.5783311997 +28 44 33.467502529   4.97 4.50 5.99   F6V+F3V 116 0
63 * kap Peg SB* 21 44 38.73522 +25 38 42.1359   4.553 4.135     F5V 244 1
64 * del Cap EB* 21 47 02.4442395 -16 07 38.233507 3.22 3.12 2.83 2.59 2.43 kA5hF0mF2III 271 0
65 * iot Peg SB* 22 07 00.6655101792 +25 20 42.356386464 4.190 4.200 3.770 3.36 3.11 F5V 443 1
66 * tau PsA PM* 22 10 08.7801946925 -32 32 54.270294310   5.40 4.92     F6V 153 0
67 V* MM Aqr a2* 22 33 12.3248929848 -20 02 21.880485816   10.058 9.582     A(pEuSrCr) 47 0
68 * ksi Peg PM* 22 46 41.5798542334 +12 10 22.388860108 4.66 4.69 4.20 3.73 3.42 F6V 386 0
69 * gam Tuc PM* 23 17 25.7564454336 -58 14 08.524954176 4.35 4.37 3.98 3.57 3.33 F4V 158 0
70 * iot Psc PM* 23 39 57.0406036160 +05 37 34.653911951 4.640 4.620 4.120 3.68 3.37 F7V 617 0
71 NAME Hyades Moving Group MGr ~ ~           ~ 281 0

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