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Table A.1

Data on nearby F stars and their new CPM companions.

Name RA (J2000) Dec (J2000) Epoch π (Sep, PA) μαcosδ μ δ N_epochs J (2MASS) SpT Ref
HD [degrees] [degrees] [year] [mas] ([arcsec, °]) [mas/yr] [mas/yr] [mag]
2057AB 6.286235 +48.047478 1998.849 22.82±0.88 +281.3±0.4j +1.0±0.4j 6.38±0.02 F8 2,3,4,S
2057Ds 6.280679a +48.046743a 1998.849 (13.6, 259) +283±26a,c −3±10a,c 11000000010 ≈12.5e ≈M5 2,2,5,5
2726A 7.608672 −48.214951 1999.767 23.11±0.43 +134.2±0.8j −84.5±0.8j 4.94±0.04f F2V 2,3,8,S
2726B 7.600967a −48.212594a 1999.767 (20.3, 295) +135±12a,c −94±13a,c 21110000001 14.96±0.14g WD 2,2,5,5
3861A 10.2991063 +9.3548251 2010.592 29.90±0.45 −125.0±0.6j −103.7±0.6 5.58±0.03 F8V 7,3,4,S
3861B 10.2945415 +9.3556005 2010.592 (16.5, 280) −121±14a,d −79±13a,d 01000102000 15.690±0.006g ≈L3.5 7,7,5,5
10226A 24.977409 −9.972228 1998.816 20.35±0.81 +239.8±1.7 +92.2±1.3 6.73±0.02 F8 2,3,8,S
10226B 24.975580 −9.973311 1998.816 (7.6, 239) +229±21d +76±16d 01000200000 ≈12.6e ≈M5 2,2,5,5
18404A 44.521691 +20.668737 1998.751 30.15±0.30 +235.4±0.6 −29.8±0.6 5.31±0.20 F5IV 2,3,4,S
18404B 44.525723 +20.667135 1998.751 (14.8, 113) +232±7 −21±4 01010100110 10.47±0.07 ≈M3.5 2,2,5,5
22879A 55.091754 −3.216831 1998.732 39.12±0.56 +688.6±0.6 −213.0±0.6 5.59±0.02 F9V 2,3,4,S
22879B 55.086450a −3.217122a 1998.732 (19.1, 267) +672±15a,c −231±14a,c 11100000010 12.09±0.07g ≈M6/sdM? 2,2,5,5
35681A 82.003845 +33.763836 1998.090 29.54±0.51 +18.2±0.4 −211.0±0.4 5.46±0.02 F7V 2,3,4,S
35681Es (?) 82.004011 +33.761101 1998.090 (9.9, 177) +33±8 −231±7 01000011010 10.32±0.08 ≈M3.5 2,2,5,5
57334A 109.551348 −51.050465 2000.195 20.27±0.52 +24.2±1.0 −150.5±1.0 6.49±0.02 F9V 2,3,8,S
57334B 109.543129 −51.059307 2000.195 (36.9, 210) +20±6b,i −158±4b,i 61110000100 11.38±0.02 ≈M3.5 2,2,5,5
74868A 131.211449 −44.542557 2001.090 27.41±0.36 −194.0±1.2 +135.4±1.0 5.63±0.02 F9 2,3,8,S
74868B (?) 131.215346a −44.542417a 2001.090 (10.0, 87) −231±15a,b +158±17a,b 01100000000 ≈11.9e ≈M5 2,2,5,5
76493A 134.444037 +38.258907 2000.022 21.52±1.58 −119±0.4j −87.6±0.4j 6.13±0.03 F5 2,3,4,S
76493B (??) 134.463382 +38.256172 2000.022 (55.6, 100) −98±5h −79±5h 61011200100 13.09±0.03 ≈M5.5 2,2,5,5
129926A 221.500396 −25.443171 1998.479 33.02±0.92 −151.5±1.1 −107.3±0.6 4.12±0.63f F0IV 2,3,3,S
129926Ds 221.504310 −25.449644 1998.479 (26.6, 151) −145±16i −123±18i 01100000200 10.90±0.03 ≈M4 2,2,5,5
141103A 236.820746 −0.269923 2006.568 20.55±0.64 −243.0±0.3 −21.3±0.3 5.94±0.02 F5 7,3,4,S
141103B 236.816820 −0.269806 2006.568 (14.1, 272) −243±16a,d −12±39a,d 01000101000 ≈13.5e ≈M6 7,7,5,5
143306A 240.618486 −56.854485 2000.170 29.56±0.40 −148.3±4.4 −117.1±4.1 5.60±0.03 F8V 2,3,8,S
143306B 240.638832 −56.849342 2000.170 (44.1, 65) −146±3c,i −118±4c,i 41210000100 10.46±0.02 ≈M3.5 2,2,5,5
155060A 256.9818847 +32.1053256 2013.918 27.36±0.43 −161.7±0.3 −41.4±0.3 6.12±0.03 F8 1,3,4,S
155060B 256.9812906 +32.1036278 2013.776 (6.4, 197) −170±9h −49±13h 01000200010 9.28±0.17 ≈M1 1,1,5,5
175317A 283.879186 −16.376575 1998.290 31.53±0.33 −27.9±0.7 −184.4±0.7 4.73±0.04f F5V 2,3,8,S
175317Bp (?) 283.882362 −16.380438 1998.290 (17.7, 142) −37±4h −180±3h 11110000110 9.13±0.03 ≈M1q 2,2,5,5
181096A 289.2140625 +47.0002178 2013.810 23.79±0.32 −8.9±0.4 +291.2±0.4 5.15±0.27f F6IV: 1,3,4,S
181096B 289.2041292 +47.0092125 2013.661 (40.5, 323) −9±3c +289±1c 41010000110 10.09±0.02 ≈M2.5 1,1,5,5
188769A 300.253517 −64.807938 2000.430 24.11±0.64 +154.3±1.3j −242.1±1.3j 6.01±0.02 F3IV 2,3,8,S
188769B 300.238788a −64.807814a 2000.430 (22.6, 271)a +155±17a,c −194±38a,c 11200000000 ≈12.6e ≈M5 2,2,5,5
215588A 341.2647036 +58.1465458 2013.438 28.22±0.32 −61.0±0.4 −135.9±0.4 5.95±0.03 F5 1,3,4,S
215588B 341.2647767 +58.1425542 2013.468 (14.4, 179) −56±4h −138±4h 01010011110 9.97±0.05 ≈M3 1,1,5,5
218235A 346.575431 +18.517733 1997.773 22.96±0.49 +227.7±1.1 +60.3±1.0 5.30±0.02 F6Vs 2,3,8,S
218235B 346.570271a +18.518478a 1997.773 (17.8, 279)a +229±22a,d +69±7a,d 01000100000 ≈12.8e ≈M5.5 2,2,5,5

Notes. Possible and doubtful CPM candidates are marked with (?) and (??), respectively. The 11-digit number N_epochs gives the number of epochs from SSS/APM, 2MASS, DENIS, UCAC4, CMC, SDSS, IPHAS, UKIDSS, WISE, URAT1, and VISTA, which were used in the proper motion determination. Visual position measurements in images of: Listed (without or with a different proper motion) in:

(a)

2MASS;

(b)

DENIS;

(c)

SSS;

(d)

SDSS;

(e)

not measured by 2MASS, estimated from visual comparison with other 2MASS objects in the field;

(f)

poor photometry according to 2MASS quality flag;

(g)

J magnitude from DENIS or UKIDSS;

(h)

similar proper motion in URAT1 (Zacharias et al. 2015);

(i)

similar proper motion in UCAC4 (Zacharias et al. 2013);

(j)

Hipparcos proper motion of van Leeuwen (2007) and UrHip or Tycho-2 proper motion do not agree within their errors;

(k)

Tokovinin (2014) or Tokovinin (2011);

(l)

WDS (Mason et al. 2001);

(m)

also in Wycoff et al. (2006);

(n)

discovered by Mugrauer et al. (2004);

(o)

also in Hartkopf et al. (2013);

(p)

member of AB Dor moving group according to Malo et al. (2013);

(q)

Riaz et al. (2006) determined M0.5 spectroscopically;

(r)

mentioned as CPM by Nicholson (2015);

(s)

other (visual or physical) components are listed in the WDS;

(t)

discovered by Gauza et al. (2012), who classified it spectroscopically as L1. Components B and C form a close binary system composed of an M8 and L3 dwarf (Gizis et al. 2003) found to be co-moving with HD 221356A at a very wide separation of about 452 arcsec (Caballero 2007);

(u)

discovered by Wilson et al. (2001) with spectroscopic classification of L0;

(v)

similar proper motion in Naval Observatory merged astrometric dataset (NOMAD; Zacharias et al. 2004) with reference to an unpublished YB6 catalogue;

(w)

discovered by Luhman et al. (2012) and classified as M2;

(x)

Sep=85 arcsec (?) in Luyten (1997);

(y)

discovered and classified as M4.5 by Lowrance et al. (2002);

(z)

SIMBAD lists an identical proper motion as for the primary without reference and a spectral type of M1 according to Bidelman (1985);

(⊗)

discovered and classified as DA WD CPM companion Hip 88728B by Deacon et al. (2014);

(†)

Shares a common radial velocity with the primary according to RAVE (Kordopatis et al. 2013);

(‡)

according to Gagné et al. (2015) a nearby potential >M5 dwarf;

(⋆)

discovered by Chini et al. (2014);

(∗)

Bidelman (1980) mentioned as wide CPM companion and estimated a spectral type of M2 or M3;

(•)

exoplanetary host star;

(♣)

SIMBAD lists a Hipparcos parallax of 47.8±5.0 mas and proper motion similar to that of Hip 10531. Comparison of SSS, 2MASS and SDSS finder charts confirms the small URAT1 proper motion indicating that Hip 10529 is a background object unrelated to the nearby star Hip 10531;

(♠)

SIMBAD erroneously lists a large proper motion similar to that of HD 187691A and spectral type of M4, which should be assigned to HD 187691C separated by 22 arcsec.

Reference. Position/Epoch, parallax of primary (angular separation and position angle of CPM companion – for URAT1 data, we neglected small epoch differences of 0.3 years), proper motion, spectral type: (S) SIMBAD; (1) URAT1; (2) 2MASS; (3) Hipparcos (van Leeuwen 2007); (4) UrHip (Frouard et al. 2015); (5) this paper; (6) UKIDSS GPS; (7) UKIDSS LAS; (8) Tycho-2 (Høg et al. 2000); (9) corrected Hipparcos data (Fabricius & Makarov 2000); (10) SPM4 (Girard et al. (2011); (11) Limoges et al. (2013).

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