J/A+A/600/A83 Photometry of beta Pic members (Messina+, 2017)
The beta Pictoris association: catalogue of photometric rotational periods of
the low-mass members and candidate members.
Messina S., Millward M., Buccino A., Zhang L., Medhi B.J., Jofre E.,
Petrucci R., Pi Q., Hambsch F.-J., Kehusmaa P., Harlingten C.,
Artemenko S., Curtis I., Hentunen V.-P., Malo L., Mauas P., Monard B.,
Muro Serrano M., Naves R., Santallo R., Savuskin A., Tan T.G.
<Astron. Astrophys. 600, A83 (2017)>
=2017A&A...600A..83M 2017A&A...600A..83M (SIMBAD/NED BibCode)
ADC_Keywords: Associations, stellar ; Photometry
Keywords: stars, activity - stars: late-type - starspots -
open clusters and associations: individual:
beta Pictoris association - binares, close - stars: rotation
Abstract:
We intended to compile the most complete catalogue of bona fide
members and candidate members of the beta Pictoris association, and to
measure their rotation periods and basic properties from our own
observations, from public archives, and exploring the literature. We
have carried out a multi-observatories campaign to get our own
photometric time series and collected all archived public photometric
data time series for the stars in our catalogue. Each time series was
analyzed with the Lomb-Scargle and CLEAN periodograms to search for
the stellar rotation periods. The measured rotational properties have
been complemented with detailed information on multiplicity,
membership, and projected rotational velocity available in the
literature and discussed star by star. We have measured the rotation
periods of 112 out of 117 among bona fide members and candidate
members of the beta Pictoris association and, whenever possible, also
luminosity, radius, and inclination of the stellar rotation axis.
This represents to date the largest catalogue of rotation periods of
any young loose stellar association. We have provided an extensive
catalogue of rotation periods together with other relevant basic
properties useful to explore a number of open issues such as the
causes of spread of rotation periods among coeval stars, the evolution
of angular momentum, the lithium-rotation connection, among others.
Description:
We provide three tables where the results of our photometric
monitoring campaign and of our photometric and periodogram analyses
are summarized. Table 1 lists the members and candidate members of the
beta Pictoris association along with coordinated, magnitudes, colors,
distances, projected rotational velocities and separation between the
components in the case of multiple systems.
Table 2 lists the rotation periods together with the uncertainty, the
peak-to-peak light curve amplitude obtained from sinusoidal fit, the
photometric precision, indication on the single/binary nature of the
target, the name in the GCVS, source of photometry used to measure the
rotation period, the photometric band, and the starting and ending HJD
of the photometric time series.
Table 3 lists the photometric time series that were used to measure
the rotation periods. We list the HJD, magnitude (in absolute value if
retrieved from public archives, in differential values if collected in
our monitoring campaign, the uncertainty, the photometric band, and the
name of the target.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 101 117 Targets coordinates and basic parameters
table2.dat 99 115 Rotation periods
table3.dat 56 75101 Photometric time series
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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- 22 A22 --- Target Target name
23- 24 A2 --- m_Target [ABC ] Multiplitiy index on target
26- 27 I2 h RAh Right ascension (J2000.0)
29- 30 I2 min RAm Right ascension (J2000.0)
32- 35 F4.1 s RAs Right ascension (J2000.0)
37 A1 --- DE- Declination sign (J2000.0)
38- 39 I2 deg DEd Declination (J2000.0)
41- 42 I2 arcmin DEm Declination (J2000.0)
44- 47 F4.1 arcsec DEs Declination (J2000.0)
49- 53 F5.2 mag Vmag V magnitude
55- 59 F5.2 mag B-V B-V color index
61- 65 F5.2 mag V-I V-I color index
67- 71 F5.2 mag V-K V-Ks color index
73- 77 F5.1 pc Dist Distance
79- 83 F5.1 km/s vsini ?=- Projected rotational velocity
85- 94 A10 --- SpType Spectral type
96-101 F6.1 au Sep ?=- Separation between components
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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- 22 A22 --- Target Target name
23- 24 A2 --- m_Target [ABC ] Multiplitiy index on target
26- 31 F6.3 d Prot ?=- Rotation period
33- 37 F5.3 d e_Prot ?=- Uncertainty on rotation period
39- 43 F5.3 mag Dmag ?=- Peak-to-peak light curve amplitude
45- 49 F5.3 mag Sigma ?=- Photometric precision
51- 55 A5 --- Mult Single/binary/triple nature (1)
58- 66 A9 --- OName Name of variable star
69- 78 A10 --- Source Source of photometric time series
82- 86 A5 --- Filter [IRVr RG715] Band of photometric data
89- 93 I5 --- HJDmin ? Lower value of date range of photometric
time series (HJD-2400000)
94 A1 --- --- [-]
95- 99 I5 --- HJDmax ? Upper value of date range of photometric
time series (HJD-2400000)
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Note (1): Flags as follows:
S = single
B = binary system
T = triple system
w = wide orbit (>60AU)
c = close orbit (<60AU)
D = debris disc host star
? = uncertain single/binary nature
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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- 13 F13.5 d HJD Heliocentric Julian Day
15- 20 F6.3 mag mag Magnitude in Filter
22- 27 F6.3 mag e_mag Uncertainty on magnitude
29- 33 A5 --- Filter [VRI RG715] Photometric filter
35- 56 A22 --- Target Name of the target
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Acknowledgements:
Sergio Messina, sergio.messina(at)oact.inaf.it
(End) Patricia Vannier [CDS] 28-Sep-2016