J/AJ/155/180 A catalog of cool dwarf targets for the TESS (Muirhead+, 2018)
A catalog of cool dwarf targets for the Transiting Exoplanet Survey Satellite.
Muirhead P.S., Dressing C.D., Mann A.W., Rojas-Ayala B., Lepine S.,
Paegert M., De Lee N., Oelkers R.
<Astron. J., 155, 180-180 (2018)>
=2018AJ....155..180M 2018AJ....155..180M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Stars, late-type ; Stars, K-type ; Stars, M-type ;
Photometry, ultraviolet ; Photometry, UBVRIJKLMNH ;
Photometry, SDSS ; Proper motions ; Stars, distances
Keywords: planetary systems - stars: fundamental parameters - stars: late-type -
stars: low-mass
Abstract:
We present a catalog of cool dwarf targets (V-J>2.7, Teff~<4000 K) and
their stellar properties for the upcoming Transiting Exoplanet Survey
Satellite (TESS), for the purpose of determining which cool dwarfs should
be observed using two minute observations. TESS has the opportunity to
search tens of thousands of nearby, cool, late K- and M-type dwarfs for
transiting exoplanets, an order of magnitude more than current or previous
transiting exoplanet surveys, such as Kepler, K2, and ground-based
programs. This necessitates a new approach to choosing cool dwarf targets.
Cool dwarfs are chosen by collating parallax and proper motion catalogs
from the literature and subjecting them to a variety of selection criteria.
We calculate stellar parameters and TESS magnitudes using the best possible
relations from the literature while maintaining uniformity of methods
for the sake of reproducibility. We estimate the expected planet yield
from TESS observations using statistical results from the Kepler mission,
and use these results to choose the best targets for two minute
observations, optimizing for small planets for which masses can conceivably
be measured using follow-up Doppler spectroscopy by current and future
Doppler spectrometers. The catalog is available in machine readable format
and is incorporated into the TESS Input Catalog and TESS Candidate Target
List until a more complete and accurate cool dwarf catalog identified
by ESA's Gaia mission can be incorporated.
Description:
In this paper, we describe a catalog of cool dwarfs for two minute
TESS observations using archival parallaxes where available, or proper
motion observations from the SUPERBLINK program (Lepine & Gaidos 2011,
J/AJ/142/138), in combination with a variety of photometric catalogs.
As a base catalog for determining cool dwarfs for TESS observations,
we therefore adopted the SUPERBLINK catalog as the primary source of
targets. Although SUPERBLINK already lists 2MASS magnitudes for most
objects, we independently cross-matched the catalog again with 2MASS
in order to obtain the 2MASS photometric flags. SUPERBLINK contains
Tycho-2 V-band magnitudes where available (Hog et al. 2000, Cat. I/259).
More recent visible magnitudes are available from the American Association
Variable Star Observers Photometric All-sky Survey (APASS, Henden & Munari
2014CoSka..43..518H 2014CoSka..43..518H) catalog. APASS contains Landolt B and V magnitudes,
and SDSS-like g', r' and i' magnitudes for roughly 2.5 million stars.
We therefore cross-matched SUPERBLINK with APASS in addition to 2MASS.
Cross-matching between the three catalogs was performed using a PostgreSQL
database maintained at Vanderbilt University for the purpose of determining
the TESS Input Catalog and the Candidate Target List (TIC and CTL;
Stassun et al. 2018AJ....156..102S 2018AJ....156..102S)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 611 1140225 The cool dwarf catalog
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See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
II/336 : AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)
J/ApJS/94/749 : RI photometry of cool dwarfs (Kirkpatrick+ 1994)
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)
J/ApJ/779/188 : Spectra of nearby late K and M Kepler stars (Mann+, 2013)
J/ApJ/800/85 : Teff, radii and luminosities of cool dwarfs (Newton+, 2015)
J/ApJ/809/77 : Transiting Exoplanet Survey Satellite (TESS) (Sullivan+, 2015)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 I10 --- TMCNTR [2546/1340033412] Parameter used for
cross-matching catalogs
12- 19 F8.4 deg RAdeg Right Ascension in decimal degrees (J2000)
21- 28 F8.4 deg DEdeg Declination in decimal degrees (J2000)
30- 35 F6.3 mag Vmag [1.35/20.92] V band magnitude
37- 42 F6.3 mag e_Vmag [-0.263/3.481] Uncertainty in Vmag
44- 49 A6 --- f_Vmag Flag indicating source for Vmag (apass,
tycho or sblink)
51- 56 F6.3 mag TESSmag [-0.383/23.446]? TESS magnitude
58- 62 F5.3 mag e_TESSmag [0/6.677]? Uncertainty in TESSmag
64- 76 A13 --- f_TESSmag Flag indicating method for determining
TESSmag (1)
78- 81 I4 K Teff [2500/4243]? Effective temperature
83- 86 I4 K e_Teff [60/7055]? Uncertainty in Teff
88- 94 A7 --- f_Teff Flag indicating method for determining Teff
(2)
96-100 F5.3 Rsun R* [0.112/0.727] Stellar radius
102-106 F5.3 Rsun e_R* [0.003/3.633] Uncertainty in R*
108-116 A9 --- f_R* Flag indicating method for determining R*
(3)
118-122 F5.3 Msun M* [0.078/0.718] Stellar mass
124-128 F5.3 Msun e_M* [0.001/4.505] Uncertainty in M*
130-140 A11 --- f_M* Flag indicating method for determining M*
(4)
142-148 I7 --- SblinkPK [1/2704782] Parameter used for
cross-matching catalogs
150-165 A16 --- Sblink Superblink star designation
(PM IHHMMm+DDMMWw)
167-172 I6 --- HIP [112/120005]? Hipparcos catalog number
174-177 I4 --- TYC1 [4/9536]? Tycho-2 catalog number 1
179-182 I4 --- TYC2 [2/5848]? Tycho-2 catalog number 2
184 I1 --- TYC3 [1/3]? Tycho-2 catalog number 3
186-197 F12.8 deg RAGdeg ? GAIA-revised Right Ascension in decimal
degrees (J2000)
199-210 F12.8 deg DEGdeg ? GAIA-revised Declination in decimal
degrees (J2000)
212-218 F7.5 arcsec/yr pm [0/8.65115] GAIA-revised total proper
motion
220-227 F8.5 arcsec/yr pmRA [-4.02083/6.49529] GAIA-revised proper
motion in RA
229-236 F8.5 arcsec/yr pmDE [-5.71434/1.85853] GAIA-revised proper
motion in DE
238-247 F10.6 deg RAOdeg Original Right Ascension in decimal degrees
(J2000)
249-258 F10.6 deg DEOdeg Original Declination in decimal degrees
(J2000)
260-265 F6.3 arcsec/yr pmO [0.006/10.358] Original total proper motion
267-272 F6.3 arcsec/yr pmRAO [-4.411/6.767] Original proper motion in RA
274-279 F6.3 arcsec/yr pmDEO [-5.731/10.327] Original proper motion
in DE
281-286 F6.4 ct/s FX [0/3.91]? X-ray flux from ROSAT
288-292 F5.2 mag FUV [13.38/26.19]? Far-UV magnitude from GALEX
294-298 F5.2 mag NUV [13.72/26.65]? Near-UV magnitude from GALEX
300-304 F5.2 mag BTmag [0/22.23]? Tycho-2 BT magnitude
306-310 F5.2 mag VTmag [0/14.87]? Tycho-2 VT magnitude
312-317 F6.3 mag Gmag [5.866/21.172]? GAIA G magnitude
319-322 F4.1 mag BJmag [0/24.7]? Photographic blue (IIIaJ)
magnitude
324-327 F4.1 mag RFmag [0/24.9]? Photographic red (IIIaF)
magnitude
329-332 F4.1 mag INmag [0/20]? Photographic infrared (IVN)
magnitude
334-338 F5.2 mag Jmag [-1.45/17.49]? 2MASS infrared J magnitude
340-344 F5.2 mag Hmag [-1.89/27.77]? 2MASS infrared H magnitude
346-350 F5.2 mag Ksmag [-2.01/17.22]? 2MASS infrared Ks
magnitude
352-356 F5.2 mag umag [12.01/27.54]? SDSS u magnitude
358-362 F5.2 mag gmag [7.97/24.58]? SDSS g magnitude
364-368 F5.2 mag rmag [8.07/28.56]? SDSS r magnitude
370-374 F5.2 mag imag [7.11/28.35]? SDSS i magnitude
376-380 F5.2 mag zmag [8.13/23.1]? SDSS z magnitude
382-386 F5.2 mag VmagS [0/21.72]? SUPERBLINK estimated V magnitude
388-392 F5.2 mag V-J [-1.92/8.86]?=99.9 SUPERBLINK estimated V-J
color
394-400 F7.5 arcsec Plxtr [0.001/0.7969]? Trigonometric parallax
402-408 F7.5 arcsec e_Plxtr [0.0001/0.047]? Error in Plxtr
410-413 A4 -- r_Plxtr Source of Plxtr
415-420 F6.4 arcsec Plxph [0.0001/0.8758]? Photometric parallax
422-427 F6.4 arcsec e_Plxph [0.0001/0.2627]? Error in Plxph
429-431 A3 -- r_Plxph Source of Plxph
433-436 F4.1 arcsec Dist [0.2/15]? GAIA close companion distance
438-441 F4.1 mag Cmag [0/11.8]? GAIA close companion magnitude
443-452 I10 --- 2MASSID [2546/1340033412] 2MASS Center Idenifying
Number used for cross-matching catalogs
454-463 F10.6 deg RAAdeg ? APASS Right Ascension in decimal degrees
(J2000)
465-469 F5.3 arcsec e_RAAdeg ? Uncertainty in RAAdeg
471-480 F10.6 deg DEAdeg ? APASS Declination in decimal degrees
(J2000)
482-486 F5.3 arcsec e_DEAdeg ? Uncertainty in DEAdeg
488-490 I3 --- Nobs [2/369]? Number of APASS observed nights
492-495 I4 --- Nimg [2/2770]? Number of APASS images for this
field
497-502 F6.3 mag VmagA [7.282/19.225]? Johnson APASS V-band
magnitude
504-509 F6.3 mag B-V [-1.696/5.721]? APASS B-V color index
511-516 F6.3 mag BmagA [8.447/22.694]? Johnson APASS B-band
magnitude
518-523 F6.3 mag gmagA [8.126/19.972]? APASS g'-band AB magnitude
525-530 F6.3 mag rmagA [7.316/18.202]? APASS r'-band AB magnitude
532-537 F6.3 mag imagA [6.636/20.479]? APASS i'-band AB magnitude
539-543 F5.3 mag e_VmagA [0.004/3.481]? Uncertainty in VmagA
545-549 F5.3 mag e_B-V [0.001/4.88]? Uncertainty in B-V
551-555 F5.3 mag e_BmagA [0.004/2.986]? Uncertainty in BmagA
557-561 F5.3 mag e_gmagA [0.004/2.486]? Uncertainty in gmagA
563-567 F5.3 mag e_rmagA [0.003/2.29]? Uncertainty in rmagA
569-573 F5.3 mag e_imagA [0.003/3.063]? Uncertainty in imagA
575-591 A17 --- 2MASS 2MASS source designation (HHMMSSss+DDMMSSs)
593-611 I19 --- Gaia ? Gaia source identifier
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Note (1): The flag assigned to the TESS magnitude T can take one of five flags:
fromapassik, fromsdssik, wmeanvkjhk, vk, or no_kmag. The first two use
a combination of i band (from either APASS or SDSS, respectively) and 2MASS
K band to determine T. The third uses a weighted mean between the V-K relation
and the 2MASS only relation. The fourth uses only V-K, and the fifth indicates
that the object does not have a reliable K-band magnitude, so a TESS magnitude
could not be reliably determined.
Note (2): The Teff flag is a combination of letters indicating which colors
were used to determine the effective temperature. The combination can include
rj, vj, and/or rz, each corresponding to the color used. The final Teff is
the weighted average of all the color-Teff relations used.
Note (3): The radius flag can take one of two strings: from_teff, indicating
that it was determined from Teff or from_mk, indicating it was determined
from the absolute K-band magnitude (Mann et al. 2015, J/ApJ/804/64).
Note (4): The mass flag can take one of several strings: from_teff, frommkD00,
indicating the Delfosse et al. (2000A&A...364..217D 2000A&A...364..217D) relations were used or
frommkB16, indicating the Benedict et al. (2016, J/AJ/152/141) relations
were used.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 23-Nov-2018