J/ApJ/926/26 Dynamically tagged groups of metal-poor stars. I. (Shank+, 2022)
Dynamically tagged groups of metal-poor stars from the best and brightest
survey.
Shank D., Beers T.C., Placco V.M., Limberg G., Jaques E., Yuan Z.,
Schlaufman K.C., Casey A.R., Huang Y., Lee Y.S., Hattori K., Santucci R.M.
<Astrophys. J., 926, 26 (2022)>
=2022ApJ...926...26S 2022ApJ...926...26S
ADC_Keywords: Stars, metal-deficient; Abundances; Radial velocities;
Associations, stellar; Photometry, infrared; Optical; Milky Way
Keywords: Milky Way dynamics ; Galaxy dynamics ; Galactic archaeology ;
Milky Way evolution ; Milky Way formation ;
Milky Way stellar halo
Abstract:
Orbital characteristics based on Gaia Early Data Release 3 astrometric
parameters are analyzed for ∼4000 metal-poor stars ([Fe/H]≤-0.8)
compiled from the Best and Brightest survey. Selected as metal-poor
candidates based on broadband near- and far-IR photometry, 43% of
these stars had medium-resolution (1200≤R≤2000) validation spectra
obtained over a 7yr campaign from 2014 to 2020 with a variety of
telescopes. The remaining stars were chosen based on photometric
metallicity determinations from the Huang et al. recalibration of the
Sky Mapper Southern Survey. Dynamical clusters of these stars are
obtained from the orbital energy and cylindrical actions using the
HDBSCAN unsupervised learning algorithm. We identify 52 dynamically
tagged groups (DTGs) with between five and 21 members; 18 DTGs have at
least 10 member stars. Milky Way (MW) substructures such as
Gaia-Sausage-Enceladus, the Metal-Weak Thick-Disk, Thamnos, the
Splashed Disk, and the Helmi Stream are identified. Associations with
MW globular clusters are determined for eight DTGs; no recognized MW
dwarf galaxies were associated with any of our DTGs. Previously
identified dynamical groups are also associated with our DTGs, with
emphasis placed on their structural determination and possible new
identifications. Chemically peculiar stars are identified as members
of several DTGs, with six DTGs that are associated with
r-process-enhanced stars. We demonstrate that the mean carbon and
α-element abundances of our DTGs are correlated with their mean
metallicity in an understandable manner. Similarly, we find that the
mean metallicity, carbon, and α-element abundances are separable
into different regions of the mean rotational-velocity space.
Description:
The best and brightest metal-poor stars (B&B survey;
Schlaufman & Casey 2014, J/ApJ/797/13) forms the basis for the
compilation of our data set.
A comprehensive explanation of the construction of the spectroscopic
sample, along with details of the medium-resolution spectroscopic
observations, are discussed in both Placco+ (2019, J/ApJ/870/122) and
Limberg+ (2021, J/ApJ/907/10). The spectra of the target stars were
taken with either the Gemini-North/South (GMOS-N/S) 8.1m telescope
(2263 targets; primarily during bad-weather time), the ESO New
Technology (NTT) 3.58m telescope (256 targets), the Southern
Astrophysical Research (SOAR) 4.1m telescope (167 targets), or the
Kitt Peak National Observatory (KPNO) Mayall 4m telescope
(73 targets), over the course of a 7yr campaign from 2014 to 2020,
resulting in observations for a total of 2760 bright, metal-poor
stellar candidates. The typical wavelength range that these spectra
cover is 3200≲λ(Å)≲5800 for GMOS-N/S targets,
3300≲λ(Å)≲5100 for NTT targets, 3600≲λ(Å)≲6200
for SOAR targets, and 3600≲λ(Å)≲6300 for KPNO targets. The
effective resolving power achieved is R∼2000 for GMOS-N/S spectra,
R∼1200 for NTT spectra, R∼1500 for SOAR spectra, and R∼1800 for KPNO
spectra.
The reduced spectra were then used to determine the stellar
atmospheric parameters and elemental abundances for the stars using
the non-SEGUE Stellar Parameter Pipeline (n-SSPP;
Beers+ 2014, J/ApJ/794/58 and 2017, J/ApJ/835/81).
See Section 2.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 69 52 Identified dynamically tagged groups (DTGs)
table2.dat 54 459 *Stellar members of identified DTGs by HDBSCAN
table3.dat 112 52 *Cluster dynamical parameters determined by AGAMA
abund.dat 58 52 The biweight estimates of the location and scale
for the abundances in each DTG
notes.dat 80 278 Notes on DTGs
table6.dat 546 6445 Initial sample from the best and brightest survey
table7.dat 687 2526 The final sample from the best and brightest survey
--------------------------------------------------------------------------------
Note on table2.dat: HDBSCAN is a clustering algorithm developed by
Campello, Moulavi, and Sander:
http://hdbscan.readthedocs.io/en/latest/how_hdbscan_works.html
Note on table3.dat: The Action-based GAlaxy Modeling Architecture (AGAMA)
package is described in Vasiliev 2019MNRAS.482.1525V 2019MNRAS.482.1525V
--------------------------------------------------------------------------------
See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/328 : AllWISE Data Release (Cutri+ 2013)
II/358 : SkyMapper Southern Sky Survey. DR1.1 (Wolf+, 2018)
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
J/AJ/90/2089 : Stars of very low metal abundance. I (Beers+, 1985)
J/ApJS/67/461 : Candidate field horizontal-branch stars cat. (Beers+, 1988)
J/AJ/103/1987 : Stars of very low metal abundance (Beers+ 1992)
J/A+A/484/721 : HES survey. IV. Cand. metal-poor stars (Christlieb+, 2008)
J/AJ/136/2050 : SEGUE stellar parameter pipeline. II. (Lee+, 2008)
J/ApJ/703/2177 : Metal-poor MS turnoff stars summary (Schlaufman+, 2009)
J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)
J/ApJ/749/77 : MW halo. III. Statistical abundances (Schlaufman+, 2012)
J/ApJ/779/102 : Metallicities of RGB stars in dwarf galaxies (Kirby+, 2013)
J/ApJ/794/58 : Metal-poor stars in the Galaxy thick disk (Beers+, 2014)
J/ApJ/797/21 : Carbon-enhanced metal-poor stars (Placco+, 2014)
J/ApJ/797/13 : Abundances of bright metal-poor stars (Schlaufman+, 2014)
J/ApJ/830/93 : Abundances of Ret II brightest red giant members (Ji+, 2016)
J/ApJ/833/20 : Carbon-enhanced metal-poor (CEMP) stars (Yoon+, 2016)
J/ApJ/835/81 : Bright metal-poor stars from HES Survey. II. (Beers+, 2017)
J/ApJ/858/92 : RPA Southern Pilot Search of 107 Stars (Hansen+, 2018)
J/ApJ/852/49 : Properties of metal-poor stars in APOGEE DR13 (Hayes+, 2018)
J/ApJS/238/16 : LAMOST-DR3 very metal-poor star catalog (Li+, 2018)
J/AJ/156/179 : r-process-enhanced field stars kinematics (Roederer+, 2018)
J/ApJ/868/110 : R-Process Alliance: 1st release in Gal. halo (Sakari+, 2018)
J/ApJ/870/122 : Sp. of low-metallicity star candidates (Placco+, 2019)
J/ApJ/898/150 : High-res. MIKE obs. of metal-poor stars (Ezzeddine+, 2020)
J/ApJS/249/30 : R-Process Alliance: metal-poor star sp. (Holmbeck+, 2020)
J/ApJ/891/39 : LAMOST DR3 very metal-poor stars of Gal. halo (Yuan+, 2020)
J/ApJ/908/79 : r-process Alliance: abundances in 519 stars (Gudin+, 2021)
J/ApJ/907/10 : Initial vs final sample of the HK/HES stars (Limberg+, 2021)
J/A+A/649/A3 : Gaia EDR3 photometric passbands (Riello+, 2021)
J/MNRAS/505/5978 : Gaia EDR3 view on Gal. globular clusters (Vasiliev+, 2021)
J/AJ/162/42 : MW Age-Metallicity-orbital energy relation (Woody+, 2021)
J/ApJS/261/19 : DTGs of metal-poor stars. II. RAVE DR6 (Shank+, 2022)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- DTG [1/52] DTG number
4- 5 I2 --- Ns [5/21] Number of member stars
7- 11 F5.1 --- Conf [36.5/100] Confidence value
13- 69 A57 --- Assoc Associations (1)
--------------------------------------------------------------------------------
Note (1): Substructures and references (see Section 5); abbreviations are:
GSE = Gaia-Sausage-Enceladus (Naidu+ 2020ApJ...901...48N 2020ApJ...901...48N); see Section 5.1.1
MWTD = the metal-weak thick disk (Naidu+ 2020ApJ...901...48N 2020ApJ...901...48N);
see Section 5.1.2
DG21 = Gudin et al. 2021, J/ApJ/908/79
HL19 = Li et al. 2019ApJ...874...74L 2019ApJ...874...74L
GC21 = Cordoni et al. 2021MNRAS.503.2539C 2021MNRAS.503.2539C
GL21 = Limberg et al. 2021, J/ApJ/907/10
ZY20b = Yuan et al. 2020, J/ApJ/891/39
GM17 = Myeong et al. 2017MNRAS.469L..78M 2017MNRAS.469L..78M
EV21 = Vasiliev & Baumgardt 2021, J/MNRAS/505/5978
FS19 = Sestito et al. 2019MNRAS.484.2166S 2019MNRAS.484.2166S
SM20 = Monty et al. 2020MNRAS.497.1236M 2020MNRAS.497.1236M
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [DTG-]
5- 6 I2 --- DTG Cluster identifier
8- 26 A19 --- Name Stellar identifier (JHHMMSS.ss+DDMMSS.s)
28- 33 F6.3 [Sun] [Fe/H] [-3.55/-0.8] Metallicity
35- 40 F6.3 [Sun] [C/Fe] [-0.8/1.14]? log C/Fe number abundance
42- 47 F6.3 [Sun] [C/Fe]c [-0.62/1.2]? log corrected C/Fe number abundance
49- 54 F6.3 [Sun] [a/Fe] [-0.3/0.8]? log α/Fe number abundance
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [DTG-]
5- 6 I2 --- DTG Cluster identifier
8- 9 I2 --- Ns [5/21] Number of member stars
11- 16 F6.1 km/s Vr [-101/195] Mean velocity in the radial
direction
18- 23 F6.1 km/s Vphi [-137/264] Mean velocity in the angular
direction
25- 30 F6.1 km/s Vz [-132/103] Mean velocity in the z
direction
32- 37 F6.1 kpc.km/s Jr [2.4/1992] Mean action in the radial
direction
39- 45 F7.1 kpc.km/s Jphi [-1012/2207] Mean action in the angular
direction
47- 52 F6.1 kpc.km/s Jz [0.5/1802] Mean action in the z direction
54- 59 F6.3 10+5km2/s2 E [-1.94/-1.28] Mean orbital energy
61- 65 F5.3 --- ecc [0.042/0.98] Mean eccentricity
67- 71 F5.1 km/s e_Vr [4/359] Uncertainty in Vr
73- 76 F4.1 km/s e_Vphi [1.4/62.5] Uncertainty in Vphi
78- 82 F5.1 km/s e_Vz [3.2/256] Uncertainty in Vz
84- 88 F5.1 kpc.km/s e_Jr [0.6/195] Uncertainty in Jr
90- 94 F5.1 kpc.km/s e_Jphi [5.9/352.5] Uncertainty in Jphi
96- 100 F5.1 kpc.km/s e_Jz [0.1/151] Uncertainty in Jz
102- 106 F5.3 10+5km2/s2 e_E [0.002/0.06] Uncertainty in E
108- 112 F5.3 --- e_ecc [0.004/0.17] Uncertainty in ecc
--------------------------------------------------------------------------------
Byte-by-byte Description of file: abund.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [DTG-]
5- 6 I2 --- DTG [1/52] Cluster identifier
8- 13 F6.3 [-] [Fe/H] [-2.6/-0.8] Metallicity
15- 19 F5.3 [-] e_[Fe/H] [0.01/0.8] Uncertainty in [Fe/H]
21- 26 F6.3 [-] [C/Fe] [-0.4/0.5]?=- Log C/Fe number abundance
28- 32 F5.3 [-] e_[C/Fe] [0/0.6]?=- Uncertainty in [C/Fe]
34- 39 F6.3 [-] [C/Fe]c [-0.4/0.7]?=- Corrected [C/Fe]
41- 45 F5.3 [-] e_[C/Fe]c [0/0.5]?=- Uncertainty in [C/Fe]c
47- 52 F6.3 [-] [a/Fe] [-0.16/0.5]?=- Alpha-element abundance
54- 58 F5.3 [-] e_[a/Fe] [0/0.4]?=- Uncertainty in [a/Fe]
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [DTG-]
5- 6 I2 --- DTG Cluster identifier
8- 80 A73 --- Note Text of the note
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Name Star name given by reference
(JHHMMSS.ss+DDMMSS.s)
21- 39 I19 --- Gaia ? Gaia EDR3 identifier
41- 49 I9 --- SMSS [454983/505157561]? SMSS DR2 identifier
( in Simbad)
51- 66 A16 --- 2MASS 2MASS identifier (HHMMSSss+DDMMSSs; J2000)
68- 69 I2 h RAh Hour of Right Ascension (J2000)
71- 72 I2 min RAm Minute of Right Ascension (J2000)
74- 78 F5.2 s RAs Second of Right Ascension (J2000)
80 A1 --- DE- Sign of the Declination (J2000)
81- 82 I2 deg DEd Degree of Declination (J2000)
84- 85 I2 arcmin DEm Arcminute of Declination (J2000)
87- 90 F4.1 arcsec DEs Arcsecond of Declination (J2000)
92- 95 A4 --- Tel Telescope (1)
97- 110 A14 --- Program Observation program identifier
112- 116 F5.3 mag E(B-V) [0.003/0.8] The (B-V) color excess
118- 123 F6.3 mag Vmag [9.5/15]? Apparent V band Vega magnitude
125- 130 F6.3 mag (B-V) [-1.36/1.58]? The (B-V) color
132- 137 F6.3 mag Jmag [8.74/16.08]? 2MASS J band magnitude
139- 143 F5.3 mag (J-K) [0.14/0.9]? 2MASS (J-Ks) color
145- 150 F6.3 mag Gmag [9.45/14.66]? Gaia EDR3 G band magnitude
152- 156 F5.3 mag (Gb-Gr) [0.34/1.72]? Gaia EDR3 (blue-red) passband
color
158- 163 F6.3 mag VGmag [9.57/15]? V band magnitude from
transformed Gaia G band (G1)
165- 170 F6.3 mag JGmag [8.5/13.54]? J band magnitude from
transformed Gaia G band (G2)
172- 177 F6.1 km/s RVCC [-533/441]? Radial velocity from
cross-correlation techniques
179- 184 F6.1 km/s RVCCc [-526/448]? Corrected RVCC velocity (G3)
186- 188 F3.1 km/s e_RVCC [5]? Uncertainty in RVCC
190- 195 F6.1 km/s RVel [-483/506]? Radial velocity given by
reference
197- 200 F4.1 km/s e_RVel [0/73]? Uncertainty in RVel
202- 207 F6.1 km/s RVG [-535/510]? Gaia EDR3 radial velocity
209- 212 F4.1 km/s e_RVG [0.2/20]? Uncertainty in RVG
214- 218 F5.1 --- NT [2/102]? Number of transits with RVG
220- 226 F7.4 mas plx [-1.91/19.77]? Gaia EDR3 parallax
228- 233 F6.4 mas e_plx [0.008/0.95]? Uncertainty in plx
235- 242 F8.4 kpc Dist [0.05/125]? Gaia EDR3 distance
244- 251 F8.4 kpc e_Dist [0/319]? Uncertainty in Dist
253- 259 F7.4 kpc Dc [0.05/29.4]? Corrected distance (G4)
261- 267 F7.4 kpc e_Dc [0/42]? Uncertainty in Dc
269- 274 F6.4 --- RErrDc [0.0007/6]? Relative error in Gaia
corrected distance
276- 282 F7.4 kpc DBJ21 [0.05/15.5]? Bailer-Jones+ (2021, I/352)
50 percentile distance
284- 289 F6.4 kpc e_DBJ21 [0/4]? Uncertainty in DBJ21 (G5)
291- 296 F6.4 --- RErrDBJ [0.0006/1.1]? Relative error in
Bailer-Jones+ (2021, I/352) distance
298- 306 F9.4 mas/yr pmRA [-189/240]? Gaia EDR3 proper motion along RA
308- 313 F6.4 mas/yr e_pmRA [0.004/0.8]? Uncertaintyin pmRA
315- 323 F9.4 mas/yr pmDE [-264/278]? Gaia EDR3 proper motion along DE
325- 330 F6.4 mas/yr e_pmDE [0.006/0.9]? Uncertaintyin pmDE
332- 338 F7.4 --- CC [-0.85/0.75]? Correlation coefficient
between PMRA and PMDE
340- 343 I4 K TeffS [4251/6923] N-SSPP effective temperature
345- 349 I5 K e_TeffS [5/4963]? Uncertainty in TeffS
351- 354 I4 K TeffP [4307/6923]? Huang+ (2022ApJ...925..164H 2022ApJ...925..164H)
effective temperature
356- 358 I3 K e_TeffP [5/313]? Uncertainty in TeffP
360- 363 I4 K Teff [4102/6542]? Adopted effective temperature
from Parameter Procedure
365- 367 I3 K e_Teff [52/225]? Uncertainty in Teff
369- 373 F5.3 [cm/s2] log(g) [0.2/5]? Log surface gravity
375- 379 F5.3 [cm/s2] e_log(g) [0.003/1.4]? Uncertainty in log(g)
381- 386 F6.3 [Sun] [Fe/H]S [-3.99/0.52]? N-SSPP metallicity
388- 392 F5.3 [Sun] e_[Fe/H]S [0/0.94]? Uncertainty in [Fe/H]S
394- 399 F6.3 [Sun] [Fe/H]P [-3.99/0.2]? Huang+ (2022ApJ...925..164H 2022ApJ...925..164H)
metallicity
401- 405 F5.3 [Sun] e_[Fe/H]P [0/0.7]? Uncertainty in [Fe/H]P
407- 412 F6.3 [Sun] [Fe/H] [-3.42/0.53]? Adopted metallicity from
Parameter Procedure
414- 418 F5.3 [Sun] e_[Fe/H] [0.1/0.94]? Uncertainty in [Fe/H]
420- 425 F6.3 [Sun] [C/Fe] [-1.53/3.1]? Log C/Fe number abundance
427- 431 F5.3 [Sun] e_[C/Fe] [0.04/0.8]? Uncertainty in [C/Fe]
433- 438 F6.3 [Sun] [C/Fe]c [-1.4/3.1]? Placco+ (2014, J/ApJ/797/21)
corrected [C/Fe]
440- 444 F5.3 [Sun] ACc [3.98/9.4]? Absolute corrected carbon
abundance (G6)
446 A1 --- CARDET A [C/Fe] flag (G7)
448- 453 F6.3 --- CC[C/Fe] [-0.14/1]? N-SSPP correlation coefficient
of [C/Fe]
455 A1 --- CEMP Flag for Carbon-Enhanced Metal-Poor (G8)
457- 462 F6.3 [Sun] [a/Fe] [-0.45/0.9]? Log alpha-element number
abundance
464- 468 F5.3 [Sun] e_[a/Fe] [0.027/0.11]? Uncertainty in [a/Fe]
470 A1 --- ALPDET Alpha abundance flag (G9)
472- 477 F6.3 --- CC[a/Fe] [-0.56/1]? N-SSPP correlation coefficient
of [a/Fe]
479- 480 I2 --- SNR [30]? Average n-SSPP Signal-to-Noise Ratio
482- 485 I4 --- Resolve [1296/2812]? N-SSPP resolving power
487- 497 A11 --- Ref Reference for the star (G10)
499- 511 A13 --- PProc Procedure used to determine adopted stellar
parameters (G11)
513- 522 A10 --- r_Vmag Reference for Vmag
524- 535 A12 --- refDis Reference for AGAMA distance (G12)
537- 546 A10 --- r_RVel Reference for RVel
--------------------------------------------------------------------------------
Note (1): Telescope as follows:
GEMN = the Gemini-North 8.1m telescope (857 occurrences)
GEMS = the Gemini-South 8.1m telescope (1377 occurrences)
KPNK = the Kitt Peak National Observatory Mayall 4m telescope with
the KOSMOS (Kitt Peak Ohio State Multi-Object Spectrograph) instrument
(71 occurrences)
NTTE = the ESO New Technology 3.58m telescope (247 occurrences)
SOAR = the Southern Astrophysical Research 4.1m telescope (163 occurrences)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Name Star name given by reference
(JHHMMSS.ss+DDMMSS.s)
21- 39 I19 --- Gaia ? Gaia EDR3 identifier
41- 49 I9 --- SMSS [454983/505157561]? SMSS DR2 identifier
( in Simbad)
51- 66 A16 --- 2MASS 2MASS identifier
(HHMMSSss+DDMMSSs; J2000)
68- 69 I2 h RAh Hour of Right Ascension (J2000)
71- 72 I2 min RAm Minute of Right Ascension (J2000)
74- 78 F5.2 s RAs Second of Right Ascension (J2000)
80 A1 --- DE- Sign of the Declination (J2000)
81- 82 I2 deg DEd Degree of Declination (J2000)
84- 85 I2 arcmin DEm Arcminute of Declination (J2000)
87- 90 F4.1 arcsec DEs Arcsecond of Declination (J2000)
92- 95 A4 --- Tel Telescope
97-110 A14 --- Program Observation program identifier
112-116 F5.3 mag E(B-V) [0.004/0.8] The (B-V) color excess
118-123 F6.3 mag Vmag [10/15]? Apparent V band Vega magnitude
125-130 F6.3 mag (B-V) [-1.4/1.4]? The (B-V) color index
132-137 F6.3 mag Jmag [8.79/15.52]? 2MASS J band magnitude
139-143 F5.3 mag (J-K) [0.18/0.9]? 2MASS (J-Ks) color index
145-150 F6.3 mag Gmag [10.14/14.6]? Gaia EDR3 G band magnitude
152-156 F5.3 mag (Gb-Gr) [0.34/1.8]? Gaia EDR3 (blue-red)
passband color
158-163 F6.3 mag VGmag [10.3/15]? V band magnitude from
transformed Gaia G band (G1)
165-170 F6.3 mag JGmag [8.79/13.3]? J band magnitude from
transformed Gaia G band (G2)
172-177 F6.1 km/s RVCC [-533/441]? Radial velocity from
cross-correlation techniques
179-184 F6.1 km/s RVCCc [-526/448]? Corrected RVCC velocity (G3)
186-188 F3.1 km/s e_RVCC [5]? Uncertainty in RVCC
190-195 F6.1 km/s RVel [-328/506]? Radial velocity given
by reference
197-200 F4.1 km/s e_RVel [0/73]? Uncertainty in RVel
202-207 F6.1 km/s RVG [-535/510]? Gaia EDR3 radial velocity
209-212 F4.1 km/s e_RVG [0.2/20]? Uncertainty in RVG
214-218 F5.1 --- NT [2/102]? Number of transits with RVG
220-226 F7.4 mas plx [-0.7/19.8]? Gaia EDR3 parallax
228-233 F6.4 mas e_plx [0.008/0.7]? Uncertainty in plx
235-241 F7.4 kpc Dist [0.05/43.8]? Gaia EDR3 distance
243-249 F7.4 kpc e_Dist [0/29.5]? Uncertainty in Dist
251-257 F7.4 kpc Dc [0.05/20.5]? Corrected distance (G4)
259-264 F6.4 kpc e_Dc [0/6.7]? Uncertainty in Dc
266-271 F6.4 --- RErrDc [0.0007/1.15]? Relative error
in Gaia corrected distance
273-279 F7.4 kpc DBJ21 [0.05/15.5]? Bailer-Jones+ (2021, I/352)
50 percentile distance
281-286 F6.4 kpc e_DBJ21 [0/4]? Uncertainty in DBJ21 (G5)
288-293 F6.4 --- RErrDBJ [0.0006/0.32]? Relative error in
Bailer-Jones+ (2021, I/352) distance
295-303 F9.4 mas/yr pmRA [-178/211]? Gaia EDR3 proper motion
along RA
305-310 F6.4 mas/yr e_pmRA [0.004/0.8]? Uncertaintyin pmRA
312-320 F9.4 mas/yr pmDE [-264/250]? Gaia EDR3 proper motion
along DE
322-327 F6.4 mas/yr e_pmDE [0.007/0.6]? Uncertaintyin PMDE
329-335 F7.4 --- CC [-0.85/0.7]? Correlation coefficient
between pmRA and pmDE
337-340 I4 K TeffS [4256/6923] n-SSPP effective temperature
342-346 I5 K e_TeffS [8/4963]? Uncertainty in TeffS
348-351 I4 K TeffP [4376/6923]? Huang+
(2022ApJ...925..164H 2022ApJ...925..164H) effective
temperature
353-355 I3 K e_TeffP [7/313]? Uncertainty in TeffP
357-360 I4 K Teff [4248/6542]? Adopted effective
temperature from Parameter Procedure
362-364 I3 K e_Teff [52/221]? Uncertainty in Teff
366-370 F5.3 [cm/s2] log(g) [0.26/5]? Log surface gravity
372-376 F5.3 [cm/s2] e_log(g) [0.005/1.4]? Uncertainty in log(g)
378-383 F6.3 [Sun] [Fe/H]S [-3.99/-0.8]? n-SSPP metallicity
385-389 F5.3 [Sun] e_[Fe/H]S [0.002/0.737]? Uncertainty in [Fe/H]S
391-396 F6.3 [Sun] [Fe/H]P [-3.99/0.03]? Huang+
(2022ApJ...925..164H 2022ApJ...925..164H) metallicity
398-402 F5.3 [Sun] e_[Fe/H]P [0/0.7]? Uncertainty in [Fe/H]P
404-409 F6.3 [Sun] [Fe/H] [-3.36/0.53]? Adopted metallicity from
Parameter Procedure
411-415 F5.3 [Sun] e_[Fe/H] [0.1/0.8]? Uncertainty in [Fe/H]
417-422 F6.3 [Sun] [C/Fe] [-1.53/3.1]? log C/Fe number abundance
424-428 F5.3 [Sun] e_[C/Fe] [0.04/0.8]? Uncertainty in [C/Fe]
430-435 F6.3 [Sun] [C/Fe]c [-1.2/3.1]? Placco+ (2014, J/ApJ/797/21)
corrected [C/Fe]
437-441 F5.3 [Sun] ACc [3.98/9.1]? Absolute corrected carbon
abundance (G6)
443 A1 --- CARDET A [C/Fe] flag (G7)
445-450 F6.3 --- CC[C/Fe] [-0.05/1]? n-SSPP correlation
coefficient of [C/Fe]
452 A1 --- CEMP Flag for Carbon-Enhanced Metal-Poor (G8)
454-459 F6.3 [Sun] [a/Fe] [-0.42/0.9]? log alpha-element number
abundance
461-465 F5.3 [Sun] e_[a/Fe] [0.027/0.11]? Uncertainty in [a/Fe]
467 A1 --- ALPDET Alpha abundance flag (G9)
469-474 F6.3 --- CC[a/Fe] [-0.56/1]? n-SSPP correlation
coefficient of [a/Fe]
476-477 I2 --- SNR [30]? Average n-SSPP Signal-to-Noise
Ratio
479-482 I4 --- Resolve [1296/2812]? n-SSPP resolving power
484-494 A11 --- Ref Reference for the star (G10)
496-508 A13 --- PProc Procedure used to determine adopted
stellar parameters (G11)
510-518 A9 --- r_Vmag Reference for Vmag
520-531 A12 --- refDis Reference for AGAMA distance (G12)
533-542 A10 --- r_RVel Reference for RVel
544-549 F6.1 km/s Vr [-406/475] Velocity in the radial
direction (1)
551-556 F6.1 km/s Vphi [-455/453] Velocity in the angular
direction (1)
558-563 F6.1 km/s Vz [-407/389] Velocity in the z
direction (1)
565-568 F4.1 km/s e_Vr [0/59] Uncertainty in Vr
570-573 F4.1 km/s e_Vphi [0/63] Uncertainty in Vphi
575-578 F4.1 km/s e_Vz [0.1/27] Uncertainty in Vz
580-585 F6.1 kpc.km/s Jr [0.1/8366] Action in the radial
direction (1)
587-593 F7.1 kpc.km/s Jphi [-3620/4734] Action in the angular
direction (1)
595-600 F6.1 kpc.km/s Jz [0/4494] Action in the z direction (1)
602-607 F6.1 kpc.km/s e_Jr [0/3796] Uncertainty in Jr
609-613 F5.1 kpc.km/s e_Jphi [0.2/511] Uncertainty in Jphi
615-619 F5.1 kpc.km/s e_Jz [0/547] Uncertainty in Jz
621-626 F6.3 kpc.km2/s2 E [-2.31/-0.56] Orbital energy (1)
628-632 F5.3 kpc.km2/s2 e_E [0.001/0.2] Uncertainty in E
634-639 F6.3 kpc rperi [0.047/17.2] Galactic pericentic
distance (1)
641-645 F5.3 kpc e_rperi [0/2.2] Uncertainty in rperi
647-653 F7.3 kpc rapo [2.4/142] Galactic apocentic
distance (1)
655-660 F6.3 kpc e_rapo [0/61] Uncertaintyin rapo
662-668 F7.3 kpc Zmax [0.018/124] Maximum height above
Galactic plane (1)
670-675 F6.3 kpc e_Zmax [0/28] Uncertainty in Zmax
677-681 F5.3 --- ecc [0.009/1] Eccentricity;
(rapo-rperi)/(rapo+rperi) (1)
683-687 F5.3 --- e_ecc [0/0.15] Uncertainty in ecc
--------------------------------------------------------------------------------
Note (1): As given by Monte Carlo sampling through AGAMA.
--------------------------------------------------------------------------------
Global notes:
Note (G1): As determined by the transformations from G mag to V mag using
V=G+0.02704-0.01424*(BP-RP)+0.2156*(BP-RP)2-0.01426(BP-RP)3
given by Riello+ (2021A&A...649A...3R 2021A&A...649A...3R).
Note (G2): As determined by the transformations from G mag to J mag using
J=G-0.01798-1.389*(BP-RP)+0.09338*(BP-RP)2 given by
Riello+ (2021A&A...649A...3R 2021A&A...649A...3R)
Note (G3): Corrected by an offset of 7.276km/s as compared to radial velocity
values in common with RVG.
Note (G4): Based on Huang+ 2021ApJ...910L...5H 2021ApJ...910L...5H
Note (G5): The 50 percentile error as estimated by the 84 percentile distance
and the 16 percentile distance as given by
Bailer-Jones+ (2021, I/352) based on the Gaia Source ID
((dist84-dist16)/2).
Note (G6): The absolute carbon corrected for evolutionary effects from
Placco+ (2014, J/ApJ/797/21)
([C/Fe]c+[Fe/H]+log(ε)Carbon,Solar) (Taken from
solar value of 8.43 from Asplund+ 2009ARA&A..47..481A 2009ARA&A..47..481A).
Note (G7): Flag as follows:
D = the carbon abundance ([C/Fe]) is detected from n-SSPP;
U = an upper limit by n-SSPP;
L = a lower limit by n-SSPP;
N = none is detected by n-SSPP.
Note (G8): Flag as follows:
C = Carbon-Enhanced Metal-Poor (CEMP) if [C/Fe]c > +0.7;
I = CEMP-intermediate if +0.5 < [C/Fe]c ≤ +0.7;
N = Carbon-Normal if [C/Fe]c ≤ +0.5
X = no [C/Fe]c information.
Note (G9): Flag as follows:
D = the alpha abundance ([α/Fe]) is detected from n-SSPP;
U = an upper limit by n-SSPP;
L = a lower limit by n-SSPP;
N = none is detected by n-SSPP.
Note (G10): Reference as follows:
Placco_2019 = Placco+ 2019, J/ApJ/870/122
Schlaufman = unpublished Best and Brightest sample;
SOAR = Best and Brightest stars observed with the SOAR telescope;
Huang = photometrically determined Best and Brightest stars
from Huang+ (2022ApJ...925..164H 2022ApJ...925..164H).
Note (G11): "Average" is used if the difference between [Fe/H]S and [Fe/H]P is
less ≤0.5dex and "Spectroscopic" is used if only [Fe/H]S is
available and "Photometric" is used if only [Fe/H]P is available,
while a choice is made between [Fe/H]S and [Fe/H]P if both are
available and the difference is >0.5dex.
Note (G12): BJ21 (Bailer-Jones+ 2021, I/352) prioritized over Gaia unless BJ21
distance has relative error greater than 0.3, if both have a
relative error greater than 0.3 we adopt no distance estimate).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Shank et al. Paper I. 2022ApJ...926...26S 2022ApJ...926...26S This catalog
Shank et al. Paper II. 2022ApJS..261...19S 2022ApJS..261...19S Cat. J/ApJS/261/19
(End) Prepared by [AAS], Emmanuelle Perret [CDs] 06-Oct-2022