J/A+A/646/A164 BEAST sample properties (Janson+, 2021)
BEAST begins: sample characteristics and survey performance of the B-star
Exoplanet Abundance Study.
Janson M., Squicciarini V., Delorme P., Gratton R., Bonnefoy M., Reffert S.,
Mamajek E.E., Eriksson S.C., Vigan A., Langlois M., Engler N., Chauvin G.,
Desidera S., Mayer L., Marleau G.-D., Bohn A.J., Samland M., Meyer M.,
d'Orazi V., Henning T., Quanz S., Kenworthy M., Carson J.C.
<Astron. Astrophys. 646, A164 (2021)>
=2021A&A...646A.164J 2021A&A...646A.164J (SIMBAD/NED BibCode)
ADC_Keywords: Stars, B-type ; Stars, double and multiple ; Exoplanets
Keywords: planets and satellites: detection - stars: early-type - brown dwarfs
Abstract:
While the occurrence rate of wide giant planets appears to increase
with stellar mass at least up through the A-type regime, B-type stars
have so far not been systematically studied in large scale surveys. It
therefore remains unclear up to what stellar mass this occurrence
trend continues. The B-star Exoplanet Abundance Study (BEAST) is a
direct imaging survey with the Extreme Adaptive Optics instrument
SPHERE, targeting 85 B-type stars in the young Scorpius-Centaurus
(Sco-Cen) region with the aim of detecting giant planets at wide
separations and constraining their occurrence rate and physical
properties. The statistical outcome of the survey will help
determining if and where an upper stellar mass limit for planet
formation occurs. Here, we describe the selection and characterization
of the BEAST target sample.
Description:
Sample properties for the target stars of the B-Star Exoplanet
Abundance Study (BEAST).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 67 BEAST observing log up through 2020
table2.dat 78 85 Sco-Cen sub-group membership of BEAST targets
table3.dat 29 85 Age estimations for the BEAST sample
table4.dat 53 85 Summary of known stellar companions
table5.dat 56 85 Fundamental sample properties
table6.dat 51 9 Stellar companions in the BEAST data
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Hipparcos identifier (HIP NNNNN)
11- 12 I2 h RAh Right ascension (J2000.0)
14- 15 I2 min RAm Right ascension (J2000.0)
17- 21 F5.2 s RAs Right ascension (J2000.0)
23 A1 --- DE- Declination sign (J2000.0)
24- 25 I2 deg DEd Declination (J2000.0)
27- 28 I2 arcmin DEm Declination (J2000.0)
30- 33 F4.1 arcsec DEs Declination (J2000.0)
35- 45 A11 --- Date Observing date
47 A1 --- Class ESO grading of observing conditions
49- 53 F5.1 deg Rot Field rotation during observation
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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- 9 A9 --- ID Hipparcos identifier (HIP NNNNN)
11- 20 A10 --- AltID Alternative identifier
22- 23 I2 h RAh Right ascension (J2000.0)
25- 26 I2 min RAm Right ascension (J2000.0)
28- 32 F5.2 s RAs Right ascension (J2000.0)
34 A1 --- DE- Declination sign (J2000.0)
35- 36 I2 deg DEd Declination (J2000.0)
38- 39 I2 arcmin DEm Declination (J2000.0)
41- 44 F4.1 arcsec DEs Declination (J2000.0)
46- 50 F5.2 mas Plx Parallax (1)
52- 55 F4.2 mas e_Plx Uncertainty on the parallax
57- 62 F6.2 mas pmRA Proper motion along RA direction
64- 69 F6.2 mas pmDE Proper motion along Dec direction
71- 73 A3 --- Group Sub-group association (US, UCL or LCC)
75- 78 F4.1 --- Prob Membership probability from BANYAN-sigma
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Note (1): Unreliable value for HIP 82514, see discussion in article.
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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- 9 A9 --- ID Hipparcos identifier (HIP NNNNN)
11- 14 F4.1 Myr Age-CMS ?=- Age estimate from the CMS method
16- 19 F4.1 Myr e_Age-CMS ?=- Uncertainty on the CMS age
21- 24 F4.1 Myr Age-MAP ?=- Age estimate from the MAP method
26- 27 I2 Myr Age-SG ?=- Age from general sub-group association
29 I1 Myr e_Age-SG ?=- Uncertainty on the sub-group age
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Hipparcos identifier (HIP NNNNN)
11- 16 A6 --- SB/EB Close binary (spectroscopic or eclipsing)
18- 29 A12 --- Ref1 Source of close binarity information (1)
31- 36 A6 --- AO/INT Intermediate binary (AO or interferometry)
38- 49 A12 --- Ref2 Source of intermediate binary information (1)
51- 53 I3 --- CMS Number of candidate co-moving stars
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Note (1): References as follows:
Budding2015 = Budding et al., 2015MNRAS.448.3784B 2015MNRAS.448.3784B
Chini2012 = Chini et al., 2012MNRAS.424.1925C 2012MNRAS.424.1925C. Cat. J/MNRAS/424/1925
David2019 = David et al., 2019ApJ...872..161D 2019ApJ...872..161D
Malkov2006 = Malkov et al., 2006A&A...446..785M 2006A&A...446..785M, Cat. J/A+A/446/785
Pourbaix2004 = Pourbaix et al., 2004A&A...424..727P 2004A&A...424..727P, Cat. B/sb9
Quiroga2010 = Quiroga et al., 2010A&A...521A..75Q 2010A&A...521A..75Q
Rizzuto2013 = Rizzuto et al., 2013MNRAS.436.1694R 2013MNRAS.436.1694R
Scholler2010 = Scholler et al., 2010A&A...522A..85S 2010A&A...522A..85S
Shatsky2002 = Shatsky et al., 2002A&A...382...92S 2002A&A...382...92S, Cat. J/A+A/382/92
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Hipparcos identifier (HIP NNNNN)
11- 15 F5.1 pc Dist Distance from parallax measurements (1)
17- 24 A8 --- SpType Spectral type
26- 29 F4.1 Msun Mass Estimated stellar mass of primary
31- 34 F4.2 mag Vmag Apparent V-band magnitude
36- 40 F5.3 mag Kmag Apparent K-band magnitude
42- 48 A7 --- Disk? Indications for a disk (Be-type or excess)
50- 56 A7 --- Ref Reference for disk indication (2)
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Note (1): Unreliable value for HIP 82514, see discussion in article.
Note (2): References as follows:
A17 = Arcos et al., 2017ApJ...842...48A 2017ApJ...842...48A
C09 = Carpenter et al., 2009ApJ...705.1646C 2009ApJ...705.1646C, Cat. J/ApJ/705/1646
C16 = Cotten & Song, 2016ApJS..225...15C 2016ApJS..225...15C , Cat. J/ApJS/225/15
L12 = Luhman & Mamajek, 2012ApJ...758...31L 2012ApJ...758...31L, Cat. J/ApJ/758/31
L14 = Liu et al., 2014AJ....148....3L 2014AJ....148....3L , Cat. J/AJ/148/3
R12 = Rizzuto et al., 2012MNRAS.421L..97R 2012MNRAS.421L..97R
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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- 9 A9 --- ID Hipparcos identifier (HIP NNNNN) (1)
11- 12 A2 --- Pair Pair identifier in the multiple system (2)
14- 24 A11 --- Date Date of observation in BEAST
26- 31 F6.1 mas Sep Separation between the components
33- 35 F3.1 mas e_Sep Uncertainty on the separation
37- 42 F6.2 deg PA Position angle for the pair
44- 47 F4.2 deg e_PA Uncertainty on the position angle
49- 51 A3 --- Ref Reference of first discovery (3)
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Note (1): HIP 73624 is no longer in the BEAST sample, see article.
Note (2): Following component designation in WDS for previously known companions
Note (3): References as follows:
S02 = Shatsky & Tokovinin, 2002A&A...382...92S 2002A&A...382...92S, Cat. J/A+A/382/92
TW = This work
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Acknowledgements:
Markus Janson, markus.janson(at)astro.su.se
(End) M. Janson [Stockholm Univ., Sweden], P. Vannier [CDS] 25-Dec-2020