J/MNRAS/465/2734 Planet-hosting solar-type stars magnetic fields (Mengel+, 2017)
A BCool survey of the magnetic fields of planet-hosting solar-type stars.
Mengel M.W., Marsden S.C., Carter B.D., Horner J., King R., Fares R.,
Jeffers S.V., Petit P., Vidotto A.A., Morin J., Bcool C.
<Mon. Not. R. Astron. Soc., 465, 2734-2747 (2017)>
=2017MNRAS.465.2734M 2017MNRAS.465.2734M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, G-type ; Exoplanets ; Magnetic fields
Keywords: line: profiles - techniques: polarimetric - stars: activity -
stars: magnetic field - planetary systems
Abstract:
We present a spectropolarimetric snapshot survey of solar-type
planet-hosting stars. In addition to 14 planet-hosting stars observed
as part of the BCool magnetic snapshot survey, we obtained magnetic
observations of a further 19 planet-hosting solar-type stars in order
to see if the presence of close-in planets had an effect on the
measured surface magnetic field (|Bl|). Our results indicate that
the magnetic activity of this sample is congruent with that of the
overall BCool sample. The effects of the planetary systems on the
magnetic activity of the parent star, if any, are too subtle to detect
compared to the intrinsic dispersion and correlations with rotation,
age and stellar activity proxies in our sample. Four of the 19 newly
observed stars, two of which are subgiants, have unambiguously
detected magnetic fields and are future targets for Zeeman-Doppler
mapping.
Description:
We present an investigation of the large-scale magnetic field of 19
additional solar-type stars for the BCool survey (Marsden et al.
2014). We expanded our sample of planet-hosting stars by adding the
previously observed planet-host in the BCool survey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 130 43 *Planetary parameters of the sample of
planet-hosting solar-type stars not previously
observed (table 1) and from the BCool survey
(table B1)
table2.dat 173 33 *Stellar parameters of the sample of
planet-hosting solar-type stars not previously
observed (table 2) or from the BCool survey
(table B2)
table6.dat 126 34 *Results from the analysis of the Stokes V LSD
profiles of the stars not observed (table 6)
and in the BCool sample (table B3)
table8.dat 135 33 *Chromospheric activity of the stars not observed
(table 8) and in the BCool sample (table B4)
table3.dat 43 20 Journal of observations
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Note on table1.dat, table2.dat, table6.dat, table8.dat:
BCool survey by Marsden et al. (2014MNRAS.444.3517M 2014MNRAS.444.3517M, Cat. J/MNRAS/444/3517).
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See also:
J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/ApJ/646/505 : Catalog of nearby exoplanets (Butler+, 2006)
J/MNRAS/444/3517 : BCool survey of solar-type stars (Marsden+ 2014)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Star HIP number
7 A1 --- n_HIP [acd] Note on HIP (1)
9- 11 I3 --- SPOCS ? Star SPOCS catalogue number
13- 18 I6 --- HD Star HD number
20- 33 A14 --- Name Planet name
34 A1 --- n_Name [b] Note on Name (1)
35- 48 F14.8 d Per ? Period
50- 62 F13.8 d E_Per ? Error on Per (upper value)
64- 76 F13.8 d e_Per ? Error on Per (lower value)
77- 83 F7.4 Mjup Msini Planet projected mass, Msini
85- 90 F6.4 Mjup E_Msini ? Error on Msini (upper value)
92- 97 F6.4 Mjup e_Msini ? Error on Msini (lower value)
99-107 F9.5 AU amaj Planet semimajor axis
109-116 F8.5 AU E_amaj ? Error on amaj (upper value)
118-125 F8.5 AU e_amaj ? Error on amaj (lower value)
127-128 I2 --- Ref Reference (2)
130 A1 --- BCool [nB] Survey flag (G1)
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Note (1): Notes as follows:
a = HIP 24205 (HD 33636) at the time of writing is listed in some catalogues
of planet-hosting stars; however, Martioli et al. (2010ApJ...708..625M 2010ApJ...708..625M)
have determined the mass of the companion to be much too massive to be
considered a planet. While perhaps considered as no longer
planet-hosting, in the interests of completeness we include it in
our analysis.
b = Butler et al. (2006ApJ...646..505B 2006ApJ...646..505B, Cat. J/ApJ/646/505) indicate that the
mass of HD 37124 c is unclear and an alternative interpretation is for a
period of 29.3d, Msini=0.170MJ and semimajor axis of 0.170au, with
slightly different values for HD 37124 a and HD 37124 b.
c = HIP16537 (epsilon Eri) is suspected to host a second planet
(Quillen & Thorndike 2002ApJ...578L.149Q 2002ApJ...578L.149Q).
d = The planet orbiting HIP107530 (HN Peg) was discovered by direct imaging,
and as a result, its orbital parameters unclear; semimajor axis is
therefore taken as the projected separation
(Luhman et al. 2007ApJ...654..570L 2007ApJ...654..570L).
Note (2): References as follows:
1 = Butler et al. (2006ApJ...646..505B 2006ApJ...646..505B, Cat. J/ApJ/646/505)
2 = Naef et al. (2010A&A...523A..15N 2010A&A...523A..15N, Cat. J/A+A/523/A15)
3 = Harakawa et al. (2010ApJ...715..550H 2010ApJ...715..550H)
4 = Beatty et al. (2012ApJ...756L..39B 2012ApJ...756L..39B)
5 = da Silva et al. (2007A&A...473..323D 2007A&A...473..323D)
6 = Robertson et al. (2012ApJ...749...39R 2012ApJ...749...39R)
7 = Moutou et al. (2006A&A...458..327M 2006A&A...458..327M)
8 = Chauvin et al. (2011A&A...528A...8C 2011A&A...528A...8C)
9 = Diaz et al. (2016A&A...585A.134D 2016A&A...585A.134D, Cat. J/A+A/585/A134)
10 = Butler et al. (2006ApJ...646..505B 2006ApJ...646..505B, Cat. J/ApJ/646/505)
11 = Benedict et al. (2006AJ....132.2206B 2006AJ....132.2206B)
12 = Gregory & Fischer (2010MNRAS.403..731G 2010MNRAS.403..731G)
13 = Wright et al. (2007ApJ...657..533W 2007ApJ...657..533W)
14 = Luhman et al. (2007ApJ...654..570L 2007ApJ...654..570L)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Star HIP number
7- 8 A2 --- n_HIP [SG] SG for supergiant
10- 12 I3 --- SPOCS ? Star SPOCS catalogue number
14- 21 A8 --- SpType Spectral type from Simbad
23- 26 I4 K Teff Effective temperature
28- 29 I2 K E_Teff Error on Teff (upper value)
31- 32 I2 K e_Teff Error on Teff (lower value)
34- 37 F4.2 [cm/s2] logg surface gravity
39- 42 F4.2 [cm/s2] E_logg ? Error on logg (upper value)
44- 47 F4.2 [cm/s2] e_logg Error on logg (lower value)
49- 53 F5.2 [-] [M/H] Metallicity [M/H] or [Fe/H]
55- 58 F4.2 [-] E_[M/H] ? Error on [M/H] (upper value)
60- 63 F4.2 [-] e_[M/H] ? Error on [M/H] (lower value)
64 A1 --- n_[M/H] [a] a when [Fe/H] instead of [M/H]
66- 71 F6.3 [Lsun] logL ? Luminosity
73- 77 F5.3 [Lsun] E_logL ? Error on logL (upper value)
79- 83 F5.3 [Lsun] e_logL ? Error on logL (lower value)
85 A1 --- l_Age Limit flag on Age
86- 90 F5.2 Gyr Age ? Age
92- 95 F4.2 Gyr E_Age ? Error on Age (upper value)
97-100 F4.2 Gyr e_Age ? Error on Age (lower value)
102-106 F5.3 Msun Mass Mass
108-112 F5.3 Msun E_Mass ? Error on Mass (upper value)
114-118 F5.3 Msun e_Mass ? Error on Mass (lower value)
120-123 F4.2 Rsun Rad ? Radius
125-128 F4.2 Rsun E_Rad ? Error on Radius (upper value)
130-133 F4.2 Rsun e_Rad ? Error on Radius (lower value)
135-139 F5.3 Rsun RadCZ ? Convertive zone radius
141-145 F5.3 Rsun E_RadCZ ? Error on RadCZ (upper value)
147-151 F5.3 Rsun e_RadCZ ? Error on RadCZ (lower value)
153 A1 --- l_vsini Limit flag on vsini
154-157 F4.1 km/s vsini ? Rotational velocity
159-161 F3.1 km/s E_vsini ? Error on vsini (upper value)
163-165 F3.1 km/s e_vsini ? Error on vsini (lower value)
167-171 A5 --- Ref References (1)
173 A1 --- BCool [nB] Survey flag (G1)
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Note (1): References as follows:
1 = Valenti & Fischer (2005ApJS..159..141V 2005ApJS..159..141V, Cat. J/ApJS/159/141)
2 = Takeda et al. (2007ApJS..168..297T 2007ApJS..168..297T, Cat. J/ApJS/168/297)
3 = Naef et al. (2010A&A...523A..15N 2010A&A...523A..15N, Cat. J/A+A/523/A15)
4 = Wang et al. (2012ApJ...761...46W 2012ApJ...761...46W, Cat. J/ApJ/761/46)
5 = Isaacson & Fischer (2010ApJ...725..875I 2010ApJ...725..875I, Cat. J/ApJ/725/875)
6 = Harakawa et al. (2010ApJ...715..550H 2010ApJ...715..550H)
7 = Beatty et al. (2012ApJ...756L..39B 2012ApJ...756L..39B)
8 = McDonald, Zijlstra & Boyer (2012MNRAS.427..343M 2012MNRAS.427..343M, Cat. J/MNRAS/427/343
9 = da Silva et al. (2007A&A...473..323D 2007A&A...473..323D)
10 = Casagrande et al. (2011A&A...530A.138C 2011A&A...530A.138C, Cat. J/A+A/530/A138
11 = Robertson et al. (2012ApJ...749...39R 2012ApJ...749...39R)
12 = Moutou et al. (2006A&A...458..327M 2006A&A...458..327M)
13 = Jofre et al. (2015A&A...574A..50J 2015A&A...574A..50J, Cat. J/A+A/574/A50)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Star HIP number
7 A1 --- n_HIP [ab] Note on HIP (1)
9 I1 --- Obs Observation number
11- 20 F10.5 d HJD ? Observation date (HJD-2450000)
22- 31 A10 "date" Obs.Date Observation date
33- 38 F6.2 km/s RV Radial velocity from this work
40- 46 F7.3 km/s RVN ?=- Radial velocity from Nidever et al.
(2002ApJS..141..503N 2002ApJS..141..503N, Cat. J/ApJS/141/503)
48- 52 F5.3 km/s e_RVN ? rms uncertainty on RVN
53 A1 --- r_RVN [V] V if RVN from Valenti & Fischer
(2005ApJS..159..141V 2005ApJS..159..141V, Cat. J/ApJS/159/141)
54 A1 --- n_RVN [N] N for non-radial velocity standard star;
sigmares≥100m/s
56- 60 I5 --- SNRLSD Signal-to-noise ratio of the Stokes V profile
62- 66 I5 ---- NLines Number of line used in the LSD process
68 A1 --- Det [DN] Magnetic field Detection flag (2)
70- 76 A7 --- n_Det Fractions of the total number of observations
78 A1 --- DetM [M] M for marginal detection
80- 85 A6 --- n_DetM Fractions of the total number of observations
87- 95 E9.4 --- FAP False alarm probability calculated for the
detection
97- 100 I4 km/s Vel1 Velocity range used to calculated Bl and Nl
(lower value)
102-104 I3 km/s Vel2 Velocoty range used to calculated Bl and Nl
(upper value)
106-110 F5.1 gauss Bl Longitudinal magnetic field
112-115 F4.2 gauss e_Bl rms uncertainty on Bl
117-120 F4.1 gauss Nl Longitudinal magnetic field for the
null profile
122-124 F3.1 gauss e_Nl rms uncertainty on NL
126 A1 --- BCool [nB] Survey flag (G1)
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Note (1): Notes as follows:
a = have multiple observations and where appropriate the number of definite
(D) and marginal (M) detections are shown as fractions of the total
number of observations.
b = HIP 113357 has multiple observations; all non-detections (N)
Note (2): Magnetic field detection flag as follows:
D = detected
N = not detected
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Star HIP number
7 A1 --- n_HIP [a] Note on HIP (1)
9- 13 F5.3 mag B-V Hipparcos B-V colour index
15- 18 F4.2 mag Vmag Hipparcos Hipparcos V magnitude
20- 24 F5.3 --- SindexW ?=- Wright et al. (2007ApJ...657..533W 2007ApJ...657..533W)
S-index
26- 31 F6.4 --- Sindex This work S-index
33- 38 F6.4 --- e_Sindex rms uncertainty on Sindex
40- 44 F5.2 [-] logR'HK log(R'HK) activity index
46- 49 F4.2 [-] E_logR'HK Error on logR'HK (upper value)
51- 54 F4.2 [-] e_logR'HK Error on logR'HK (lower value)
56- 61 F6.3 Gyr Age Chromospheric age (2)
63- 67 F5.3 Gyr E_Age Error on Age (upper value)
69- 73 F5.3 Gyr e_Age Error on Age (lower value)
75- 78 F4.1 d Per Chromospheric period (2)
80- 82 F3.1 d E_Per Error on Per (upper value)
84- 86 F3.1 d e_Per Error on Per (lower value)
88- 93 F6.4 --- CaT Ca Infra-Red Triplet index (2)
95-100 F6.4 --- e_CaT rms uncertainty on CaT
102-107 F6.4 --- Ha Hα index
109-114 F6.4 --- e_Ha rms uncertainty on Ha
116-121 F6.3 [-] logRo Rossby number (rotational period to
age ratio, log(Prot/tau)) (2)
123-127 F5.3 [-] E_logRo Error on logRo (upper value)
129-133 F5.3 [-] e_logRo Error on logRo (lower value)
135 A1 --- BCool [nB] Survey flag (G1)
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Note (1): a: Note that HIP 64457 has two sequences of observations
(eight exposures) compared with all other targets (four exposures).
Note (2): Chromospheric ages, periods and log(Prot/tau) have been determined
using the equations presented in Wright et al. (2007ApJ...657..533W 2007ApJ...657..533W).
As noted in the text, sample standard deviations are used as an indication
of various errors.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Star HIP number
8- 17 F10.5 d HJD Observation date (HJD-2450000)
19- 28 A10 "date" Obs.Date Observation date
30- 37 A8 "h:m:s" Obs.Time Observatino time
39- 43 A5 s Texp Exposure time
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Global notes:
Note (G1): Survey flag as follows:
n = systems not previously observed by Marsden et al.
(2014MNRAS.444.3517M 2014MNRAS.444.3517M, Cat. J/MNRAS/444/3517)
B = systems observed by the BCool survey
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 20-Nov-2018