J/ApJS/254/11 The Spitzer Kepler Survey (SpiKeS) catalog (Werner+, 2021)
SpiKeS: precision warm Spitzer photometry of the Kepler field.
Werner M.W., Gorjian V., Morales F.Y., Livingston J.H., Kennedy G.M.,
Akeson R.L., Beichman C., Ciardi D.R., Furlan E., Lowrance P.J.,
Mamajek E.E., Plavchan P., Stark C.C., Wyatt M.C.
<Astrophys. J. Suppl. Ser., 254, 11 (2021)>
=2021ApJS..254...11W 2021ApJS..254...11W
ADC_Keywords: Photometry, infrared; Cross identifications; Abundances, [Fe/H];
Stars, masses; Proper motions; Stars, distances; Extinction;
Stars, diameters; Optical; Surveys
Keywords: Stellar properties; Stellar colors; Stellar types; Infrared excess;
Infrared astronomy; Spectral energy distribution; Photometry;
Catalogs; Surveys; Stellar photometry; Stellar evolutionary tracks
Abstract:
The ∼200000 targets monitored for photometric variability during the
Kepler prime mission include the best-studied group of stars in the
sky, due both to the extensive time history provided by Kepler and to
the substantial amount of ancillary data provided by other
investigators or compiled by the Kepler team. To complement this
wealth of data, we surveyed the entire Kepler field using the 3.6 and
4.5µm bands of the Warm Spitzer Space Telescope, obtaining
photometry in both bands for almost 170000 objects. We demonstrate
relative photometric precision ranging from better than ∼1.5% for the
brighter stars down to slightly greater than ∼2% for the faintest
stars monitored by Kepler. We describe the data collection and
analysis phases of this work and identify several stars with large
infrared excess, although none that is also known to be the host of an
exoplanetary system.
Description:
We began this work with a pilot project in 2013 January, during
Spitzer Cycle 9 (PID 90100), by observing a Kepler test tile (KTT),
which is one of the twenty-one 25x25 sectors into which the full
Kepler field is divided. The test field is centered at
RAJ2000=292765220,DEJ2000=4208020.
The success of the pilot project, which reached our desired
photometric precision, encouraged us to propose to observe the entire
Kepler field using the same methodology. This main survey was designed
similarly to the pilot survey so that each Kepler tile was observed as
continuously as Spitzer's scheduling constraints permitted. We
observed all 21 Kepler tiles, which included a reobservation of the
KTT. In the main survey, the observations spanning from 2013 December
to 2015 January of a particular tile were typically spread over 2 or 3d
(PID 10067).
Acknowledging SpiKeS in publication:
If you make use of SpiKeS data, please include the following
acknowledgement:
"This paper makes use of data from SpiKeS: The Spitzer Kepler Survey
(Werner et al. 2021ApJS..254...11W 2021ApJS..254...11W) as provided by the SpiKeS team to
the NASA Exoplanet Archive."
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spikes.dat 786 191984 The Spitzer Kepler Survey (SpiKeS) catalog
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
II/328 : AllWISE Data Release (Cutri+ 2013)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/365 : The CatWISE2020 catalog (updated version 28-Jan-2021) (Marocco+, 2020)
J/ApJ/300/779 : High-latitude H-alpha emission stars (Stephenson+, 1986)
J/MNRAS/426/91 : Kepler stars with infrared excess (Kennedy+, 2012)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/ApJS/210/1 : Asteroseismic study of solar-type stars (Chaplin+, 2014)
J/ApJS/211/25 : Spitzer/IRS debris disk catalog. I. (Chen+, 2014)
J/ApJ/792/30 : NEOWISE magnitudes for near-Earth objects (Mainzer+, 2014)
J/ApJ/805/77 : Spitzer 3.6 and 4.5um monitoring of 5 stars (Meng+, 2015)
J/MNRAS/463/1162 : Infrared photometry of Be stars (Chen+, 2016)
J/ApJ/823/59 : WISE and 2MASS photometry of M giant stars (Li+, 2016)
J/ApJS/229/30 : Revised properties of Q1-17 Kepler targets (Mathur+, 2017)
J/AJ/154/107 : California-Kepler Survey (CKS). I. (Petigura+, 2017)
J/AJ/153/66 : Robo-AO Kepler Planetary Cand. Survey. III. (Ziegler+, 2017)
J/AJ/156/264 : CKS. VII. Planet radius gap (Fulton+, 2018)
J/AJ/159/280 : Gaia-Kepler stellar properties cat. I. (Berger+, 2020)
http://exoplanetarchive.ipac.caltech.edu/docs/spikes.html : SpiKeS NASA
exoplanet archive
Byte-by-byte Description of file: spikes.dat
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Bytes Format Units Label Explanations
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1- 11 E11.8 --- KIC [757076/1.3e+7] KIC identifier
13 A1 --- --- [K]
14- 21 F8.2 --- KOI [1.01/8297.01]? Kepler object of interest ID
23- 37 A15 --- Kepler Kepler planet name
39- 47 F9.5 deg RAdeg [279.62/301.83] KIC right ascension (J2000)
49- 57 F9.6 deg DEdeg [36.5/52.5] KIC declination (J2000)
59- 68 F10.6 mJy F3.6 [0.036/411.4]? Spitzer/IRAC 3.6um flux density
70- 90 E21.19 mJy e_F3.6 [0.0008/7.5]? F3.6 uncertainty
92-109 F18.15 mag 3.6mag [7/17.22]? Spitzer/IRAC 3.6um magnitude
111-115 F5.3 mag e_3.6mag [0.015/0.024]? 3.6mag uncertainty
117-118 I2 --- o_F3.6 [1/10]? Number of IRAC 3.6um observations
120-129 F10.6 mJy F4.5 [0.017/980.4]? Spitzer/IRAC 4.5um flux density
131-151 E21.19 mJy e_F4.5 [0.00048/15.7]? F4.5 uncertainty
153-170 F18.15 mag 4.5mag [5.6/17.6]? Spitzer/IRAC 4.5um magnitude
172-176 F5.3 mag e_4.5mag [0.01/0.03]? 4.5mag uncertainty
178 I1 --- o_F4.5 [1/9]? Number of IRAC 4.5um observations
180 A1 --- --- [_]
181-183 A3 --- Flags Flags from SpiKeS (1)
185-190 F6.3 mag Kpmag [5/20.8]? Kepler-band magnitude
192-196 A5 --- --- [2MASS]
198-216 A19 --- 2MASS 2MASS designation (JHHMMSSss+DDMMSSs)
218-223 F6.3 mag Jmag [2.19/17.01]? 2MASS J (1.25um) band magnitude
225-229 F5.3 mag e_Jmag [0.016/0.51]? Jmag uncertainty
231-236 F6.3 mag Hmag [1.23/17.55]? 2MASS H (1.65um) band magnitude
238-242 F5.3 mag e_Hmag [0.014/10]? Hmag uncertainty
244-249 F6.3 mag Ksmag [0.86/17.4]? 2MASS Ks (2.17um) band magnitude
251-255 F5.3 mag e_Ksmag [0.01/10]? Ksmag uncertainty
257-275 A19 --- WISEA AllWISE designation (JHHMMSS.ss+DDMMSS.s)
277-287 F11.7 deg RAWdeg ? AllWISE right ascension (J2000)
289-298 F10.7 deg DEWdeg ? AllWISE declination (J2000)
300-305 F6.3 mag W1mag [-1.93/17.17]? AllWISE W1 (3.35um) magnitude
307-312 F6.3 mag W2mag [-1.5/17.8]? AllWISE W2 (4.6um) magnitude
314-319 F6.3 mag W3mag [-1.1/13.6]? AllWISE W3 (11.6um) magnitude
321-326 F6.3 mag W4mag [-2.1/10.1]? AllWISE W4 (22.1um) magnitude
328-332 F5.3 mag e_W1mag [0.017/0.54]? W1mag mean error
334-338 F5.3 mag e_W2mag [0.01/0.53]? W2mag mean error
340-344 F5.3 mag e_W3mag [0.007/0.55]? W3mag mean error
346-350 F5.3 mag e_W4mag [0.001/0.55]? W4mag mean error
352-370 I19 --- WISE ? Unique AllWISE source ID
372-375 A4 --- ccf AllWISE contamination and confusion flag
(see II/328) (2)
377 I1 --- ex [0/5]? AllWISE extended source
(0=point source; see II/328) (3)
379-382 A4 --- var AllWISE variability flag, one per band
(>7=variable; see II/328) (4)
384-387 A4 --- qph AllWISE photometric quality flag, one per band
(A=SNR>10; see II/328)
389-396 E8.6 arcsec SepW [0.00048/1]? Angular separation of AllWISE
from SpiKeS source
398-415 A18 --- CatWISE CatWISE objID
417-427 F11.7 deg RACdeg ? CatWISE right ascension (ICRS)
429-438 F10.7 deg DECdeg ? CatWISE declination (ICRS)
440-445 F6.3 mag W1Cmag [3.65/16.73]? CatWISE W1 (3.35um) magnitude
447-452 F6.3 mag W2Cmag [2.94/17.61]? CatWISE W2 (4.6um) magnitude
454-458 F5.3 mag e_W1Cmag [0.006/0.3]? W1Cmag mean error
460-464 F5.3 mag e_W2Cmag [0.004/0.3]? W2Cmag mean error
466-470 I5 K Teff [2661/27730]? Stellar effective temperature
from Mathur+, 2017, J/ApJS/229/30
472-475 I4 K E_Teff [0/1015]? Teff positive uncertainty
477-480 I4 K e_Teff [0/1939]? Teff negative uncertainty
482-487 F6.3 [cm/s2] logg [-0.16/5.52]? log of stellar surface gravity
from Mathur+, 2017, J/ApJS/229/30
489-493 F5.3 [cm/s2] E_logg [0/2]? logg positive uncertainty
495-499 F5.3 [cm/s2] e_logg [0/0.9]? logg negative uncertainty
501-505 F5.2 [-] [Fe/H] [-1.98/0.6]? Stellar metallicity
from Mathur+, 2017, J/ApJS/229/30
507-510 F4.2 [-] E_[Fe/H] [0/1.4]? [Fe/H] positive uncertainty
512-515 F4.2 [-] e_[Fe/H] [0/1.1]? [Fe/H] negative uncertainty
517-521 F5.3 Msun Mass [0.094/3.8]? Stellar mass
from Mathur+, 2017, J/ApJS/229/30
523-527 F5.3 Msun E_Mass [0/1.6]? Mass positive uncertainty
529-533 F5.3 Msun e_Mass [0/2.6]? Mass negative uncertainty
535-541 F7.3 Rsun Rad [0.1/301]? Stellar radius
from Mathur+, 2017, J/ApJS/229/30
543-548 F6.3 Rsun E_Rad [0/42]? Rad positive uncertainty
550-556 F7.3 Rsun e_Rad [0/180]? Rad negative uncertainty
558-565 E8.6 g/cm3 Den [1.8e-7/117]? Stellar density
from Mathur+, 2017, J/ApJS/229/30
567-574 E8.6 g/cm3 E_Den [0/24]? Den positive uncertainty
576-583 E8.6 g/cm3 e_Den [0/95]? Den negative uncertainty
585-589 F5.3 mag Av [0/1.04]? AV extinction
from Mathur+, 2017, J/ApJS/229/30
591-595 F5.3 mag E_Av [0/0.3]? Av positive uncertainty
597-601 F5.3 mag e_Av [0/0.8]? Av negative uncertainty
603-621 I19 --- Gaia ? Gaia DR2 identifier
623-637 F15.11 deg RAGdeg ? Gaia DR2 barycentric right ascension (ICRS)
at Ep=2015.5
639-652 F14.11 deg DEGdeg ? Gaia DR2 barycentric declination (ICRS)
at Ep=2015.5
654-672 F19.13 pc rest [19.16/18402]? Bailer-Jones+ 2018, I/347
estimated distance
674-692 F19.13 pc b_rest [19/14137]? Lower bound on the confidence
interval of the estimated distance
694-712 F19.13 pc B_rest [19/23911]? Upper bound on the confidence
interval of the estimated distance
714-730 F17.12 pc rlen [774/2337]? Length scale used in the prior
for the distance estimation
732 I1 --- ResFlag [1/2]? Result flag (2=median; see I/347)
734 I1 --- ModFlag [1/2]? Number of modes in the posterior
(see I/347)
736-742 E7.4 mas Plx [-8.7/52.2]? Gaia DR2 absolute stellar
parallax
744-749 F6.4 mas e_Plx [0.01/1.4]? Standard error of parallax
751-757 F7.3 mas/yr pmRA [-61.4/137]? Gaia DR2 proper motion in RA
direction (pmRA*cosDE)
759-763 F5.3 mas/yr e_pmRA [0.02/3.3]? pmRA standard error
765-771 F7.3 mas/yr pmDE [-67/64]? Gaia DR2 proper motion in DEC
direction
773-777 F5.3 mas/yr e_pmDE [0.02/2.7]? pmDE uncertainty
779-786 E8.6 arcsec SepG [0.0004/1]? Angular separation of Gaia DR2
from SpiKes sources
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Note (1): SpiKeS flags one column for IRAC1, IRAC2 and potentially unresolved
source in WISE beam. 0=no flag set, 1=flag set.
Column 1: IRAC1 no viable observation (I1nobs = 0) or above nominal
saturation magnitude (I1 mag = 10.1) which means it is either
saturated or has had a saturation correction applied within the
pipeline reduction.
Column 2: IRAC2 no viable observation (I2nobs = 0) or above nominal
saturation magnitude (I2 mag = 9.4) which means it is either
saturated or has had a saturation correction applied within the
pipeline reduction.
Column 3: Potentially unresolved source in WISE beam.
Note (2): CAUTION: Non-zero ccf values in any band indicate the measurement
in that band may be contaminated and the photometry should be used
with caution.
Note (3): CAUTION: WISE profile-fit (w?mpro) and standard aperture (w?mag)
measurements are optimized for point sources and will systematically
underestimate the true flux of resolved objects. If a source entry has
ex>0, you may wish to examine the large aperture photometry or the
elliptical aperture photometry, which are measured using areas that
are scaled from 2MASS XSC morphologies.
Note (4): CAUTION: Estimation of flux variability is unreliable for sources
that are extended (ex>0), and sources whose measurements are
contaminated by image artifacts in a band (ccf[b]!='0').
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History:
Downloaded at:
http://exoplanetarchive.ipac.caltech.edu/docs/spikes.html
(End) Emmanuelle Perret [CDS] 06-Jul-2021