J/A+A/672/A159 M67 late-type stars light curves (Gruner+, 2023)
New insights into the rotational evolution of near-solar age stars from the open
cluster M67.
Gruner D., Barnes S.A., Weingrill J.
<Astron. Astrophys. 672, A159 (2023)>
=2023A&A...672A.159G 2023A&A...672A.159G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; Stars, dwarfs ; Clusters, open
Keywords: stars: rotation - stars: late-type - starspots
Abstract:
Gyrochronology allows the derivation of ages for cool main sequence
stars from their observed rotation periods and masses, or a suitable
proxy of the latter. It is increasingly well-explored for FGK stars,
but requires further measurements for older ages and K-M-type stars.
Recent work has shown that the behavior of stellar spindown differs
significantly from prior expectations for late-type stars. We study
the 4Gyr-old benchmark open cluster M67 to explore this behavior
further. We identify periodic signals in 136 lightcurves, 47 of which
are from the rotation of effectively single main-sequence stars that
span from early-G to mid-M type. These results connect well to prior
work on M67 and extend it to much later spectral types.
Description:
We present rotation periods for late-type stars in the open cluster
M67. Those are derived from newly created light curves based on K2
observations. The table contains commonly used identifiers and
magnitudes for each star for which a period is found. For each star,
we provide the created light curve, including all intermediate steps
from their creation.
Objects:
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RA (ICRS) DE Designation(s)
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08 51 23.04 +11 48 50.4 M67 = NGC 2682
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablec4.dat 493 136 Catalog
lc/* . 136 Fits files for ligth curve data
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)
I/355 : Gaia DR3 Part 1 (Gaia Collaboration, 2022)
Byte-by-byte Description of file: tablec4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Star [1/136] Catalog number
5 A1 --- Sample [Y/N] Y if M67 MS single star
7- 25 I19 --- GaiaDR3 Gaia DR3 identifier
27- 43 A17 --- 2MASS 2MASS identifier
45- 53 I9 --- EPIC ? EPIC identifier
55- 61 F7.4 d Per [0.18/37.1] Rotation period
63- 68 F6.4 d e_Per Error on rotation period
72- 77 F6.3 mag Bmag [9.96/21.46]? B-band Magnitude
79- 83 F5.3 mag e_Bmag [0.05/0.3]? Error on Bmag
86- 91 F6.3 mag Vmag [10.02/19.99]? V-band magnitude
93- 97 F5.3 mag e_Vmag [0.0/0.27]? Error on V-band magnitude
100-105 F6.3 mag Rmag [12.14/16.05]? R-band magnitude
107-110 F4.2 mag e_Rmag [0.05/0.36]? Error on R-band magnitude
114-119 F6.3 mag Imag [10.59/17.96]? I-band magnitude
121-125 F5.3 mag e_Imag [0.0/0.02]? Error on I-band magnitude
128-133 F6.3 mag Jmag [9.89/16.7]? 2MASS J-band magnitude
135-139 F5.3 mag e_Jmag [0.02/0.15]? Error on 2MASS J-band magnitude
142-147 F6.3 mag Hmag [9.48/16.05]? 2MASS H-band magnitude
149-153 F5.3 mag e_Hmag [0.01/0.21]? Error on 2MASS H-band magnitude
156-161 F6.3 mag Kmag [9.36/15.7]? 2MASS K-band magnitude
163-167 F5.3 mag e_Kmag [0.01/0.23]? Error on 2MASS K-band magnitude
170-175 F6.3 mag Gmag [10.0/20.45]? Gaia DR3 G-band magnitude
177-181 F5.3 mag e_Gmag [0.0/0.01]? Error on Gaia DR3 G-band magnitude
184-189 F6.3 mag BPmag [9.96/21.01]? Gaia DR3 BP-band magnitude
191-195 F5.3 mag e_BPmag [0.0/0.15]? Error on Gaia DR3 BP-band
magnitude
199-204 F6.3 mag RPmag [10.06/19.76]? Gaia DR3 RP-band magnitude
206-210 F5.3 mag e_RPmag [0.0/0.09]? Error on Gaia DR3 RP-band
magnitude
214 A1 --- M67 [MF] M=M67 member, F=field star
218-223 F6.3 mag G-RP [-0.06/1.38]? Gaia G-RP color
225-230 F6.3 mag G-RP0 [-0.09/1.35]? Dereddened Gaia G-RP color
(only cluster members)
232-236 F5.3 mag e_G-RP [0.0/0.09]? Error on Gaia G-RP color
239-244 F6.3 mag BP-RP [-0.11/2.96]? Gaia BP-RP color
246-251 F6.3 mag BP-RP0 [-0.16/2.52]? Dereddened Gaia BP-RP color
(only cluster members)
254-258 F5.3 mag e_BP-RP [0.0/0.15]? Error on Gaia BP-RP color
262-267 F6.3 mag B-V [-0.07/1.68]? B-V color
269-274 F6.3 mag B-V0 [-0.11/1.61]? Dereddened B-V color
(only cluster members)
275-280 F6.3 mag e_B-V [0.07/0.31]? Error on B-V color
282-287 F6.3 mag V-K [-0.21/5.33]? V-K color
289-294 F6.3 mag V-K0 [-0.32/4.4]? Dereddened V-K color
(only cluster members)
296-300 F5.3 mag e_V-K [0.02/0.28]? Error on V-K color
303-317 F15.11 deg RAdeg [132.65/133.08] Gaia DR3 Right ascension
(ICRS) at Ep=2016.0
319-324 F6.4 arcsec e_RAdeg [0.00/1.09] Error on Gaia DR3 right ascension
(ICRS) at Ep=2016.0
326-340 F15.11 deg DEdeg [11.6/12.04] Gaia DR3 declination
(ICRS) at Ep=2016.0
342-347 F6.4 arcsec e_DEdeg [0.00/0.62] Error on Gaia DR3 declination
(ICRS) at Ep=2016.0
349-355 F7.4 mas Plx [0.14/13.5]? Gaia DR3 parallax
357-362 F6.4 mas e_Plx [0.01/0.86]? Error on Gaia DR3 parallax
364-370 F7.3 mas/yr pmRA [-24.93/3.1]? Gaia DR3 Proper motion in
right ascension direction
372-376 F5.3 mas/yr e_pmRA [0.01/1.03]? Error on pmRA
378-384 F7.3 mas/yr pmDE [-41.93/23.93]? Proper motion in
declination direction
386-390 F5.3 mas/yr e_pmDE [0.01/0.82]? Error on pmDE
392-398 F7.3 km/s RV [-28.2/95.0]?=- Radial velocity
399-404 F6.3 km/s e_RV ?=- Error on radial velocity
406-418 A13 --- OType Simbad object type
420-427 A8 --- SpType Simbad spectral type
429 A1 --- binary [Y/N] Y if star is a binary
436 A1 --- photbin [Y/N] Y if star is a photometric binary
445 A1 --- MS [Y/N] Y if star is on the main sequence
448 A1 --- HPS [Y/N] Y if star is on the Half-period sequence
452 A1 --- DD [Y/N] Y if star is double-dipping
455-461 F7.3 pix xstamp [18.81/399.0] Mean x coordinate on
the superstamp
463-469 F7.3 pix ystamp [6.4/397.72] Mean y coordinate on
the superstamp
471 A1 --- Kepler [Y/N] Y if star has Kepler K2 lightcurve
478 A1 --- K2sc [Y/N] Y if star has K2Sc lightcurve
483 A1 --- Everest [Y/N] Y if star has EVEREST lightcurve
485-493 A9 --- FileName Name of the fits file with lc data
in subdirectory lc
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Acknowledgements:
David Gruner, dgruner(at)aip.de
(End) Patricia Vannier [CDS] 07-Mar-2023