J/ApJS/245/13 CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)
Cluster Difference Imaging Photometric Survey.
I. Light curves of stars in open clusters from TESS sectors 6 and 7.
Bouma L.G., Hartman J.D., Bhatti W., Winn J.N., Bakos G.A.
<Astrophys. J. Suppl. Ser., 245, 13-13 (2019)>
=2019ApJS..245...13B 2019ApJS..245...13B (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open; Proper motions; Parallaxes, trigonometric;
Photometry; Optical; Stars, ages
Keywords: Astronomy data reduction; Transit photometry; Stellar ages
Open star clusters; Stellar associations; Exoplanet evolution
Stellar rotation; Variable stars; Eclipsing binary stars
Time series analysis
Abstract:
The Transiting Exoplanet Survey Satellite (TESS) is providing precise
time-series photometry for most star clusters in the solar
neighborhood. Using the TESS images, we have begun a Cluster
Difference Imaging Photometric Survey, in which we are focusing both
on stars that are candidate cluster members and on stars that show
indications of youth. Our aims are to discover giant transiting
planets with known ages, and to provide light curves suitable for
studies in stellar astrophysics. For this work, we made 159343 light
curves of candidate young stars, across 596 distinct clusters. Each
light curve represents between 20 and 25 days of observations of a
star brighter than GRp=16, with 30-minute sampling. We describe the
image-subtraction and time-series analysis techniques we used to
create the light curves, which have noise properties that agree with
theoretical expectations. We also comment on the possible utility of
the light-curve sample for studies of stellar rotation evolution and
binary eccentricity damping.
Description:
The Transiting Exoplanet Survey Satellite (TESS) spacecraft began
science operations on 2018 July 25. Sector 6 began on 2018 December 12
(space orbit 19). Sector 7 concluded on 2019 February 1. Combined, the
two sectors cover galactic longitudes from roughly 200° to
280°, with coverage within ±20° of the galactic plane (Fig 1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 899 1061446 Cluster Difference Imaging Photometric Survey
(CDIPS) target star catalog assembled for this work
table2.dat 35 285 Counts of light curves per cluster in Sector 6
table3.dat 35 411 Counts of light curves per cluster in Sector 7
lcs/* . 3 Light curves in FITS format for Sector 6 and 7
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Description of file:
Light curves in FITS format for Sector 6 and 7 are available on the
subdirectory "lcs/CDIPS/s0006" (or /s0007), there are subdirectories
for each CCDs on the 4 cameras. The name of a LC file is constructed as:
"hlspcdipstessffigaiatwo000" , Gaia DR2 ID, "-0006" (or "-0007"),
camera number, CCD number, "tessv01_lcc.fits"
e.g. hlspcdipstessffigaiatwo0002942920219811590528-0006-cam2-ccd4tess
v01_llc.fits
Only Gaia DR2 3019025902128593024 has 2 light curves in Sector 6.
In Sector 7, Gaia DR2 3041652034662522752 & 3041709518504270336 have 2 LCs.
See also:
VII/233 : The 2MASS Extended sources (Skrutskie+, 2006)
I/317 : The PPMXL Catalog (Roeeser+, 2010)
I/322 : UCAC4 Catalogue (Zacharias+, 2012)
I/337 : Gaia DR1 (Gaia, 2016)
I/345 : Gaia DR2 (Gaia, 2018)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/A+AS/127/1 : 1997 reference of diffuse night sky brightness (Leinert+, 1998)
J/other/ARA+A/42.685 : Young stars near the Sun (Zuckerman+, 2004)
J/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)
J/MNRAS/374/399 : Infrared star clusters with |b|<20° (Froebrich+, 2007)
J/ApJ/710/1724 : Follow-up photometry for HAT-P-11 (Bakos+, 2010)
J/MNRAS/416/3108 : Membership of Sco OB2 moving group (Rizzuto+, 2011)
J/A+A/531/A92 : Deep all-sky census of the Hyades (Roeser+, 2011)
J/A+A/543/A156 : Milky Way global survey of star clusters (Kharchenko+, 2012)
J/other/ApSS/344.175 : Protoclusters and subclusters (Majaess, 2013)
J/A+A/558/A53 : MW global survey of star clusters. II. (Kharchenko+, 2013)
J/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)
J/AJ/147/146 : Spectroscopy of Tuc-Hor candidate members (Kraus+, 2014)
J/AJ/148/38 : WIYN open cluster study. LX. NGC 6819 (Milliman+, 2014)
J/A+A/583/A73 : Color-period diagram for M48 (NGC2548) (Barnes+, 2015)
J/ApJ/809/77 : Transiting Exoplanet Survey Satellite (TESS) (Sullivan+, 2015)
J/A+A/595/A22 : 9 new open clusters within 500pc from the Sun (Roser+, 2016)
J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)
J/AJ/155/89 : California-Kepler Survey (CKS). IV. Planets (Petigura+, 2018)
J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+, 2018)
J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)
J/ApJ/856/23 : BANYAN. XI. The BANYAN Σ algorithm (Gagne+, 2018)
J/ApJ/860/43 : BANYAN. XII. New members from Gaia-Tycho data (Gagne+, 2018)
J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. with Gaia DR2 (Gagne+, 2018)
J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diagrams (Gaia+, 2018)
J/A+A/620/A172 : Solar neighbourhood young stars 3D mapping (Zari+, 2018)
J/AJ/157/217 : Transit times of 5 hot Jupiter WASP exoplanets (Bouma+, 2019)
J/AJ/158/77 : Candidates & members of Pisces-Eridanus stream (Curtis+, 2019)
J/AJ/158/122 : Local structure & SFH of the MW (Kounkel+, 2019)
J/A+A/626/A17 : Young population in Vela-Puppis region (Cantat-Gaudin+, 2019)
J/A+A/624/A126 : New open clusters in Perseus direction (Cantat-Gaudin+, 2019)
J/ApJS/244/12 : A search for variable stars in M4 with K2 LCs (Wallace+, 2019)
http://archive.stsci.edu/hlsp/cdips : CDIPS on MAST home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 19 I19 --- Gaia Gaia DR2 identifier
21-133 A113 --- ClIDs Cluster identifier(s) in Ref
135-381 A247 --- Ref Reference(s) (1)
383-569 A187 --- CName External catalog name(s)
571-582 E12.5 deg RAdeg Gaia DR2 barycentric right ascension (ICRS)
at Ep=2015.5
584-595 E12.5 deg DEdeg Gaia DR2 barycentric declination (ICRS)
at Ep=2015.5
597-608 E12.5 mas/yr pmRA [-576/354]? Gaia DR2 proper motion along RA
610-621 E12.5 mas/yr pmDE [-409/246]? Gaia DR2 proper motion along DE
623-634 E12.5 mas plx [-28.1/90.8]? Gaia DR2 parallax
636-642 F7.4 mag Gmag [2.6/18.4] Gaia DR2 broad band magnitude
644-650 F7.4 mag BPmag [3/21.7]? Gaia DR2 Blue band magnitude
652-658 F7.4 mag RPmag [2.2/16] Gaia DR2 Red band magnitude
660-676 A17 --- K13 Kharchenko+ 2013, J/A+A/558/A53 name match (2)
678-694 A17 --- Cluster Unique cluster name (3)
696-726 A31 --- Meth Method for name matching (4)
728-732 A5 --- inK13 Cluster found in K13; true or false
734-877 A144 --- Comm K13 summarizing cluster information comment
879-884 F6.3 [yr] logt [6/10.1]? log10 age from K13
886-890 F5.3 [yr] e_logt [0.001/0.4]? Uncertainty in logt
892 I1 --- Cam6 ? Camera number for sector 6 used in
the LC FileName; column added by CDS
894 I1 --- CCD6 ? CCD number for sector 6 used in
the LC FileName; column added by CDS
897 I1 --- Cam7 ? Camera number for sector 7 used in
the LC FileName; column added by CDS
899 I1 --- CCD7 ? CCD number for sector 7 used in
the LC FileName; column added by CDS
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Note (1): The external catalog(s) claiming cluster membership is given as a
comma-separated string.
References as follows:
Bell201732Ori = Bell et al. 2017MNRAS.468.1198B 2017MNRAS.468.1198B
CantatGaudin_2018 = Cantat-Gaudin et al. 2019, J/A+A/624/A126
Dias2014 = Dias et al. 2014, J/A+A/564/A79
Gagne2018BANYAN_XI = Gagne et al. 2018, J/ApJ/856/23
Gagne2018BANYAN_XII = Gagne et al. 2018, J/ApJ/860/43
Gagne2018BANYAN_XIII = Gagne et al. 2018, J/ApJ/862/138
GaiaCollaboration2018_tab1a = Gaia Collaboration 2018, J/A+A/616/A10
--table1a (Stars in 9 open clusters within 250pc)
GaiaCollaboration2018_tab1b = Gaia Collaboration 2018, J/A+A/616/A10
--table1b (Stars in 37 clusters beyond 250pc)
Kharchenko2013 = Kharchenko et al. 2013, J/A+A/558/A53 (K13)
Kraus2014TucHor = Kraus et al. 2014, J/AJ/147/146
Oh2017clustering = Oh et al. 2017, J/AJ/153/257
Rizzuto2011ScoOB2 = Rizzuto et al. 2011, J/MNRAS/416/3108
Roser2011Hyades = Roser et al. 2011, J/A+A/531/A92
Zari2018PMS = Zari et al., 2018, J/A+A/620/A172
--Pre-main sequence table
Zari2018UMS = Zari et al., 2018, J/A+A/620/A172
--Upper main sequence table
Note (2): The name matching described in Appendix B most often succeeds in
finding the Kharchenko+ 2013, J/A+A/558/A53 (K13) cluster
corresponding to the external catalog claiming membership. This, or
else the external name is used to assign the unique cluster name.
Note (3): The method for name matching (Appendix B) is also given as a string,
as is a "Comm" summarizing information from
K13 (Kharchenko+ 2013, J/A+A/558/A53) about the cluster.
Note (4): In assigning a single unique cluster name to each star, we matched
our list with the K13 (Kharchenko+ 2013, J/A+A/558/A53) name whenever
possible because this was the largest available catalog. In order of
precedence we:
1. Checked for direct string matches from K13 clusters with determined
parameters;
2. Checked whether the SIMBAD online name resolving service had any
direct string matches with K13 clusters with determined parameters;
3. Checked for string matches in the full K13 index (including clusters
without determined parameters);
4. Searched for spatial matches between each star and cluster centers
from K13 within 10'. In cases with multiple cluster matches, we
ignored candidate matches to avoid assigning incorrect names;
5. And checked the WEBDA double name list
(http://webda.physics.muni.cz/double_names.html) and repeated
Steps 1-4 with any matches.
See Appendix B for further details.
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Byte-by-byte Description of file: table[23].dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Cluster Cluster identifier (1)
18- 22 I5 --- Nlc [1/13009] Number of light curves in cluster
24- 24 A1 --- Cl Cluster status in K13 (2)
26- 26 A1 --- f_Cl Flag on Cl (3)
28- 28 A1 --- n_Cl Note on Cl (o=object or c=candidate cluster)
30- 32 A3 --- Comm Comment in K13 (4)
34- 35 A2 --- inK13 no: no match with K13
Kharchenko+ (2013, J/A+A/558/A53)
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Note (1): Names are matched against Kharchenko+ (2013, J/A+A/558/A53 ;
<[KPS2012] MWSC NNNN> in Simbad) as described in Appendix B.
Note (2): Code as follows:
k = cluster parameters are determined (by Kharchenko+ 2013, J/A+A/558/A53).
p = possibly this is a cluster, but parameters are not determined.
- = this is not a cluster.
d = duplicated/coincides with other cluster.
Note (3): Code as follows:
blank = open cluster.
a = association.
g = globular cluster.
m = moving group.
n = nebulosity/presence of nebulosity.
r = remnant cluster.
s = asterism.
Note (4): Comment as follows:
ass = stellar association.
ast = Dias: possible asterism/dust hole/star cloud.
dub = Dias: dubious, objects considered doubtful by the DSS images
inspection.
emb = embedded open cluster/cluster associated with nebulosity.
glo = globular cluster/possible globular cluster.
irc = infrared cluster.
irg = infrared stellar group.
mog = Dias: possible moving group.
non = Dias: "non-existent NGC"/ objects not found in DSS images inspection.
rem = Possible cluster remnant.
var = clusters with variable extinction.
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History:
From electronic version of the journal for the tables
Light curves for Sector 6 and 7 downloaded from:
http://archive.stsci.edu/hlsp/cdips/cdips-bulk-download-scripts
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Mar-2020