J/A+A/696/A205 Chemo-dynamic parameters of thin disc stars (Dantas+, 2025)
Probing the origins. I. Generalised additive model inference of birth radii for
Milky Way stars in the solar vicinity.
Dantas M.L.L., Smiljanic R., de Souza R.S., Tissera P.B., Magrini L.
<Astron. Astrophys. 696, A205 (2025)>
=2025A&A...696A.205D 2025A&A...696A.205D (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Stars, ages ; Abundances, [Fe/H] ; Radial velocities ;
Optical ; Space velocities
Keywords: methods: statistical - stars: abundances - Galaxy: abundances -
Galaxy: evolution - Galaxy: stellar content -
Galaxy: kinematics and dynamics
Abstract:
As stars traverse the Galaxy, interactions with structures like the
bar and spiral arms can alter their orbits, leading to either
'churning', where changes in angular momentum shift their guiding
radii, or 'blurring', where angular momentum is preserved. Churning is
what is commonly known as radial migration. Here, we probe the orbital
characteristics of a diverse set of stars in the thin disc observed by
the Gaia-ESO survey. We aim to discern whether their orbits are
predominantly influenced by churning or if they kept their orbital
birth radii (i.e. were blurred or remained undisturbed). We employ a
Generalised Additive Model (GAM) to address the limitations inherent
in radial metallicity gradients predicted by chemical evolution
models, thereby facilitating the estimation of birth radii for the
thin disc stars in our sample based on their ages and chemical
composition. We then juxtapose the birth radius predictions derived
from the GAM with the calculated guiding radii, among other dynamic
parameters. This comparison is performed within distinct groups of our
dataset, categorised through Hierarchical Clustering (HC) based on 21
chemical abundances spanning 18 species. Our results indicate that
groups of stars with different chemical abundances exhibit distinct
orbital behaviours. Metal-rich stars, formed in the inner regions of
the Milky Way, seem to be predominantly churned outward. Their
metal-poor counterparts, formed in the outer thin disc, exhibit the
opposite behaviour. Also, the proportion of blurred/undisturbed stars
generally increases with decreasing metallicity when compared to their
churned counterparts. Approximately 3/4 of the sample has been
affected by (inward or outward) churning, while the remaining ∼1/4 has
either been influenced by blurring or remained undisturbed. These
percentages vary considerably across different metallicity- stratified
groups. Additionally, a large age gap is identified between churned
and blurred/undisturbed sub-samples within each HC-based group, being
the outward-churned stars systematically the oldest, inward-churned
stars the youngest, and blurred/undisturbed stars in intermediate
ages. Yet, given that our sample mostly comprises old stars, we
suspect that those classified as blurred/undisturbed may have
primarily undergone blurring due to their extended interactions with
Galactic structures, considering that their median ages are ∼6.61Gyr.
We also detect significant differences in angular momenta in the z
component, for stars that have either churned inward or outward, when
compared to their blurred/undisturbed counterparts. The action
components also provide interesting insights into the orbital history
of our different metallicity- and motion-stratified groups.
Additionally, we observe the potential effects of the pericentric
passage of the Sagittarius dwarf galaxy in our most metal-poor subset
of stars, formed in the outer disc. Finally, we estimate that the
Sun's most probable birth radius is 7.08±0.24kpc, with a
3σ range spanning from 6.46 to 7.81kpc, in agreement with
previous studies.
Description:
The table lists the chemo-dynamic parameters for the stars used in the
paper, including the derived birth radii. Additional parameters can be
provided upon request.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 3221 1188 Chemo-dynamic parameters for all the thin disc
stars used in the paper
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See also:
J/A+A/669/A96 : Super-metal-rich stars chemo-dynamic features (Dantas+, 2023)
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- CNAME Gaia-ESO (GES) unique identifier
(CNAME)
18- 36 I19 --- GaiaEDR3 Gaia eDR3 unique identifier
(GAIAeDR3ID)
38- 57 F20.16 deg RAdeg GES right ascension (J2000) (RA)
59- 78 F20.16 deg DEdeg GES declination (J2000) (DEC)
80- 87 A8 --- GES-Type GES type of object (GES_TYPE)
89 I1 --- HC1 [1/6] Hierarchical clustering (HC)
main (level 1) group number
(hcgroupmain)
91- 92 I2 --- HC2 [1/11] HC level 2 group number
(hcgroupsub)
94- 95 I2 --- HC3 [1/48] HC level 3 group number (see
Dantas et al,, 2023A&A...669A..96D 2023A&A...669A..96D)
(hcmmrsubgroup)
97- 102 F6.2 --- SNR GES signal-to-noise (SNR)
104- 109 F6.1 K Teff GES effective temperature (TEFF)
111- 114 F4.1 K e_Teff GES Teff uncertainty (E_TEFF)
116- 119 F4.2 [cm/s2] logg GES surface gravity (LOGG)
121- 124 F4.2 [cm/s2] e_logg GES logg uncertainty (E_LOGG)
126- 131 F6.2 km/s RV GES radial velocity (VRAD)
133- 136 F4.2 km/s e_RV GES radial velocity uncertainty
(E_VRAD)
138- 142 F5.2 [-] [Fe/H] GES [Fe/H] (FEH)
144- 147 F4.2 [-] e_[Fe/H] GES [Fe/H] uncertainty (E_FEH)
149- 152 F4.2 [-] CI GES C1 abundance (C1)
154- 157 F4.2 [-] e_CI GES C1 abundance uncertainty (E_C1)
159- 162 F4.2 [-] NaI GES Na1 abundance (NA1)
164- 167 F4.2 [-] e_NaI GES Na1 abundance uncertainty
(E_NA1)
169- 172 F4.2 [-] MgI GES Mg1 abundance (MG1)
174- 177 F4.2 [-] e_MgI GES Mg1 abundance uncertainty
(E_MG1)
179- 182 F4.2 [-] AlI GES Al1 abundance (AL1)
184- 187 F4.2 [-] e_AlI GES Al1 abundance uncertainty
(E_AL1)
189- 192 F4.2 [-] SiI GES Si1 abundance (SI1)
194- 197 F4.2 [-] e_SiI GES Si1 abundance uncertainty
(E_SI1)
199- 202 F4.2 [-] SiII GES Si2 abundance (SI2)
204- 207 F4.2 [-] e_SiII GES Si2 abundance uncertainty
(E_SI2)
209- 212 F4.2 [-] CaI GES Ca1 abundance (CA1)
214- 217 F4.2 [-] e_CaI GES Ca1 abundance uncertainty
(E_CA1)
219- 222 F4.2 [-] ScII GES Sc2 abundance (SC2)
224- 227 F4.2 [-] e_ScII GES Sc2 abundance uncertainty
(E_SC2)
229- 232 F4.2 [-] TiI GES Ti1 abundance (TI1)
234- 237 F4.2 [-] e_TiI GES Ti1 abundance uncertainty
(E_TI1)
239- 242 F4.2 [-] TiII GES Ti2 abundance (TI2)
244- 247 F4.2 [-] e_TiII GES Ti2 abundance uncertainty
(E_TI2)
249- 252 F4.2 [-] VI GES V1 abundance (V1)
254- 257 F4.2 [-] e_VI GES V1 abundance uncertainty (E_V1)
259- 262 F4.2 [-] CrI GES Cr1 abundance (CR1)
264- 267 F4.2 [-] e_CrI GES Cr1 abundance uncertainty
(E_CR1)
269- 272 F4.2 [-] CrII GES Cr2 abundance (CR2)
274- 277 F4.2 [-] e_CrII GES Cr2 abundance uncertainty
(E_CR2)
279- 282 F4.2 [-] MnI GES Mn1 abundance (MN1)
284- 287 F4.2 [-] e_MnI GES Mn1 abundance uncertainty
(E_MN1)
289- 292 F4.2 [-] CoI GES Co1 abundance (CO1)
294- 297 F4.2 [-] e_CoI GES Co1 abundance uncertainty
(E_CO1)
299- 302 F4.2 [-] NiI GES Ni1 abundance (NI1)
304- 307 F4.2 [-] e_NiI GES Ni1 abundance uncertainty
(E_NI1)
309- 312 F4.2 [-] CuI GES Cu1 abundance (CU1)
314- 317 F4.2 [-] e_CuI GES Cu1 abundance uncertainty
(E_CU1)
319- 322 F4.2 [-] ZnI GES Zn1 abundance (ZN1)
324- 327 F4.2 [-] e_ZnI GES Zn1 abundance uncertainty
(E_ZN1)
329- 332 F4.2 [-] YII GES Y2 abundance (Y2)
334- 337 F4.2 [-] e_YII GES Y2 abundance uncertainty (E_Y2)
339- 342 F4.2 [-] BaII GES Ba2 abundance (BA2)
344- 347 F4.2 [-] e_BaII GES Ba2 abundance uncertainty
(E_BA2)
349- 353 F5.2 [-] LiI ? GES Li1 abundance (LI1)
355- 359 F5.2 [-] e_LiI ? GES Li1 abundance uncertainty
(E_LI1)
361- 364 F4.1 --- l_LiI [0/1]? Limit flag on Li measurement
(0=detected; 1=upper limit)
(UPPERCOMBINEDLI1)
366- 384 F19.16 [Gyr] logAgemed Median log(age) (age_median) (1)
386- 404 F19.16 [Gyr] logAgemean Mean log(age) (age_mean) (1)
406- 423 F18.16 [Gyr] e_logAge Log(age) uncertainty (age_err) (1)
425- 443 F19.16 [Gyr] e1_logAge Bottom 1-sigma log(age)
(agelow1sigma) (1)
445- 463 F19.16 [Gyr] E1_logAge Top 1-sigma log(age)
(ageup1sigma) (1)
465- 483 F19.16 [Gyr] e3_logAge Bottom 3-sigma log(age)
(agelow3sigma) (1)
485- 503 F19.16 [Gyr] E3_logAge Top 3-sigma log(age)
(ageup3sigma) (1)
505- 523 F19.16 kpc b_Rbirth Birth radius estimated using [Fe/H]
16th percentile (Rbirthfeh_16%)
525- 543 F19.16 kpc Rbirth Birth radius estimated using [Fe/H]
50th percentile (median)
(Rbirthfeh_50%)
545- 563 F19.16 kpc B_Rbirth Birth radius estimated using [Fe/H]
84th percentile (Rbirthfeh_84%)
565- 583 F19.16 kpc Rbirthmean Mean birth radius estimated using
[Fe/H] (Rbirthfeh_mean)
585- 603 F19.16 kpc s_Rbirth Birth radius estimated using [Fe/H]
standard deviation
(Rbirthfeh_std)
605- 624 F20.16 pc s_Dist Distance standard deviation
(distance_std)
626- 644 F19.14 pc b_Dist Distance 16th percentile
(distance_16%)
646- 664 F19.14 pc Dist Distance 50th percentile
(distance_50%)
666- 684 F19.14 pc B_Dist Distance 84th percentile
(distance_84%)
686- 705 F20.15 km/s/kpc AngMomXmean Mean angular momentum in the
x-direction (angmomentxlxmean)
(2)
707- 725 F19.16 km/s/kpc s_AngMomX Angular momentum in the x-direction
standard deviation
(angmomentxlxstd) (2)
727- 746 F20.15 km/s/kpc b_AngMomX x-direction angular momentum 16th
percentile (angmomentxlx16%) (2)
748- 767 F20.15 km/s/kpc AngMomX x-direction angular momentum 50th
percentile (angmomentxlx50%) (2)
769- 788 F20.15 km/s/kpc B_AngMomX x-direction angular momentum 84th
percentile (angmomentxlx84%) (2)
790- 810 F21.16 km/s/kpc AngMomYmean Mean angular momentum in the
x-direction (angmomentylymean)
(2)
812- 830 F19.16 km/s/kpc s_AngMomYmean Angular momentum in the y-direction
standard deviation
(angmomentylystd) (2)
832- 852 F21.16 km/s/kpc b_AngMomY y-direction angular momentum 16th
percentile (angmomentyly16%) (2)
854- 874 F21.16 km/s/kpc AngMomY y-direction angular momentum 50th
percentile (angmomentyly50%) (2)
876- 896 F21.16 km/s/kpc B_AngMomY x-direction angular momentum 84th
percentile (angmomentyly84%) (2)
898- 915 F18.13 km/s/kpc AngMomZmean Mean angular momentum in the
y-direction (angmomentzlzmean)
(2)
917- 935 F19.16 km/s/kpc s_AngMomZ Angular momentum in the z-direction
standard deviation
(angmomentzlzstd) (2)
937- 954 F18.13 km/s/kpc b_AngMomZ z-direction angular momentum 16th
percentile (angmomentzlz16%) (2)
956- 973 F18.13 km/s/kpc AngMomZ z-direction angular momentum 50th
percentile (angmomentzlz50%) (2)
975- 992 F18.13 km/s/kpc B_AngMomZ z-direction angular momentum 84th
percentile (angmomentzlz84%) (2)
994-1013 F20.16 km.kpc/s JRmean Mean radial action
(actionradialjr_mean)
1015-1033 F19.16 km.kpc/s s_JR Radial action standard deviation
(actionradialjr_std)
1035-1054 F20.16 km.kpc/s b_JR Radial action 16th percentile
(actionradialjr_16%)
1056-1075 F20.16 km.kpc/s JR Radial action 50th percentile
(actionradialjr_50%)
1077-1096 F20.16 km.kpc/s B_JR Radial action 84th percentile
(actionradialjr_84%)
1098-1115 F18.13 km.kpc/s Jphimean Mean azimuthal action
(actionazimuthaljphi_mean)
1117-1135 F19.16 km.kpc/s s_Jphi Azimuthal action standard deviation
(actionazimuthaljphi_std)
1137-1154 F18.13 km.kpc/s b_Jphi Azimuthal action 16th percentile
(actionazimuthaljphi_16%)
1156-1173 F18.13 km.kpc/s Jphi Azimuthal action 50th percentile
(actionazimuthaljphi_50%)
1175-1192 F18.13 km.kpc/s B_Jphi Azimuthal action 84th percentile
(actionazimuthaljphi_84%)
1194-1213 F20.16 km.kpc/s JZmean Mean vertical action
(actionverticaljz_mean)
1215-1233 F19.16 km.kpc/s s_JZ Vertical action standard deviation
(actionverticaljz_std)
1235-1254 F20.16 km.kpc/s b_JZ Vertical action 16th percentile
(actionverticaljz_16%)
1256-1275 F20.16 km.kpc/s JZ Vertical action 50th percentile
(actionverticaljz_50%)
1277-1296 F20.16 km.kpc/s B_JZ Vertical action 84th percentile
(actionverticaljz_84%)
1298-1319 E22.16 kpc Xheliomean Mean heliocentric position in the
x-direction (helioxmean)
1321-1342 E22.17 kpc s_Xhelio Heliocentric position in the
x-direction standard deviation
(helioxstd)
1344-1366 E23.16 kpc b_Xhelio x-direction heliocentric position
16th percentile (heliox16%)
1368-1388 E21.15 kpc Xhelio x-direction heliocentric position
50th percentile (heliox50%)
1390-1408 F19.16 kpc B_Xhelio x-direction heliocentric position
84th percentile (heliox84%)
1410-1428 F19.16 kpc Yheliomean Mean heliocentric position in the
y-direction (helioymean)
1430-1447 F18.16 kpc s_Yhelio Heliocentric position in the
y-direction standard deviation
(helioystd)
1449-1467 F19.16 kpc b_Yhelio y-direction heliocentric position
16th percentile (helioy16%)
1469-1487 F19.16 kpc Yhelio y-direction heliocentric position
50th percentile (helioy50%)
1489-1507 F19.16 kpc B_Yhelio y-direction heliocentric position
84th percentile (helioy84%)
1509-1527 F19.16 kpc Zheliomean Mean heliocentric position in the
z-direction (heliozmean)
1529-1546 F18.16 kpc s_Zhelio Heliocentric position in the
z-direction standard deviation
(heliozstd)
1548-1566 F19.16 kpc b_Zhelio z-direction heliocentric position
16th percentile (helioz16%)
1568-1586 F19.16 kpc Zhelio z-direction heliocentric position
50th percentile (helioz50%)
1588-1606 F19.16 kpc B_Zhelio z-direction heliocentric position
84th percentile (helioz84%)
1608-1626 F19.11 km2/s2 Etotmean Mean total binding energy
(energytote_mean)
1628-1647 F20.15 km2/s2 s_Etot Total binding energy standard
deviation (energytote_std)
1649-1667 F19.11 km2/s2 b_Etot Total biding energy 16th percentile
(energytote_16%)
1669-1687 F19.11 km2/s2 Etot Total biding energy 50th percentile
(energytote_50%)
1689-1707 F19.11 km2/s2 B_Etot Total biding energy 84th percentile
(energytote_84%)
1709-1728 F20.15 km2/s2 Ez-ezmean Mean partitioned energy (z-axis)
(energyzez_mean)
1730-1750 F21.16 km2/s2 s_Ez-ezmean Partitioned energy (z-axis) standard
deviation (energyzez_std)
1752-1771 F20.15 km2/s2 b_Ez-ezmean Partitioned energy (z-axis) 16th
percentile (energyzez_16%)
1773-1792 F20.15 km2/s2 Ez-ez Partitioned energy (z-axis) 50th
percentile (energyzez_50%)
1794-1813 F20.15 km2/s2 B_Ez-ez Partitioned energy (z-axis) 84th
percentile (energyzez_84%)
1815-1833 F19.11 km2/s2 Er-ermean Mean partitioned energy (r-axis)
(energyrer_mean)
1835-1854 F20.15 km2/s2 s_Er-er Partitioned energy (r-axis) standard
deviation (energyrer_std)
1856-1874 F19.11 km2/s2 b_Er-er Partitioned energy (r-axis) 16th
percentile (energyrer_16%)
1876-1894 F19.11 km2/s2 Er-er Partitioned energy (r-axis) 50th
percentile (energyrer_50%)
1896-1914 F19.11 km2/s2 B_Er-er Partitioned energy (r-axis) 84th
percentile (energyrer_84%)
1916-1936 F21.16 km/s Ulsrmean Mean velocity in the U-direction
(lsrvelu_mean) (3)
1938-1955 F18.16 km/s s_Ulsr U-direction velocity standard
deviation (lsrvelu_std) (3)
1957-1977 F21.16 km/s b_Ulsr U-direction velocity 16th percentile
(lsrvelu_16%) (3)
1979-1999 F21.16 km/s Ulsr U-direction velocity 50th percentile
(lsrvelu_50%) (3)
2001-2021 F21.16 km/s B_Ulsr U-direction velocity 84th percentile
(lsrvelu_84%) (3)
2023-2043 F21.16 km/s Vlsrmean Mean velocity in the V-direction
(lsrvelv_mean) (3)
2045-2062 F18.16 km/s s_Vlsr V-direction velocity standard
deviation (lsrvelv_std) (3)
2064-2084 F21.16 km/s b_Vlsr V-direction velocity 16th percentile
(lsrvelv_16%) (3)
2086-2106 F21.16 km/s Vlsr V-direction velocity 50th percentile
(lsrvelv_50%) (3)
2108-2128 F21.16 km/s B_Vlsr V-direction velocity 84th percentile
(lsrvelv_84%) (3)
2130-2150 F21.16 km/s Wlsrmean Mean velocity in the W-direction
(lsrvelw_mean) (3)
2152-2169 F18.16 km/s s_Wlsr W-direction velocity standard
deviation (lsrvelw_std) (3)
2171-2191 F21.16 km/s b_Wlsr W-direction velocity 16th percentile
(lsrvelw_16%) (3)
2193-2213 F21.16 km/s Wlsr W-direction velocity 50th percentile
(lsrvelw_50%) (3)
2215-2234 F20.16 km/s B_Wlsr W-direction velocity 84th percentile
(lsrvelw_84%) (3)
2236-2255 F20.16 km/s VXmean Mean velocity in the x-direction
(velxvx_mean)
2257-2274 F18.16 km/s s_VX x-direction velocity standard
deviation (velxvx_std)
2276-2295 F20.16 km/s b_VX x-direction velocity 16th percentile
(velxvx_16%)
2297-2316 F20.16 km/s VX x-direction velocity 50th percentile
(velxvx_50%)
2318-2337 F20.16 km/s B_VX x-direction velocity 84th percentile
(velxvx_84%)
2339-2356 F18.14 km/s VYmean Mean velocity in the y-direction
(velyvy_mean)
2358-2375 F18.16 km/s s_VY y-direction velocity standard
deviation (velyvy_std)
2377-2394 F18.14 km/s b_VY y-direction velocity 16th percentile
(velyvy_16%)
2396-2413 F18.14 km/s VY y-direction velocity 50th percentile
(velyvy_50%)
2415-2432 F18.14 km/s B_VY y-direction velocity 84th percentile
(velyvy_84%)
2434-2453 F20.16 km/s VZmean Mean velocity in the z-direction
(velzvz_mean)
2455-2472 F18.16 km/s s_VZ z-direction velocity standard
deviation (velzvz_std)
2474-2493 F20.16 km/s b_VZ z-direction velocity 16th percentile
(velzvz_16%)
2495-2514 F20.16 km/s VZ z-direction velocity 50th percentile
(velzvz_50%)
2516-2535 F20.16 km/s B_VZ z-direction velocity 84th percentile
(velzvz_84%)
2537-2557 F21.16 km/s Vrmean Mean velocity in the r-direction
(velrvr_mean)
2559-2576 F18.16 km/s s_Vrmean r-direction velocity standard
deviation (velrvr_std)
2578-2598 F21.16 km/s b_Vr r-direction velocity 16th percentile
(velrvr_16%)
2600-2620 F21.16 km/s Vr r-direction velocity 50th percentile
(velrvr_50%)
2622-2642 F21.16 km/s B_Vr r-direction velocity 84th percentile
(velrvr_84%)
2644-2661 F18.15 km/s Vphimean Mean velocity in the phi-direction
(velphivphi_mean)
2663-2680 F18.16 km/s s_Vphi phi-direction velocity standard
deviation (velphivphi_std)
2682-2699 F18.15 km/s b_Vphi phi-direction velocity 16th
percentile (velphivphi_16%)
2701-2718 F18.15 km/s Vphi phi-direction velocity 50th
percentile (velphivphi_50%)
2720-2737 F18.15 km/s B_Vphi phi-direction velocity 84th
percentile (velphivphi_84%)
2739-2756 F18.16 --- eccmean Mean eccentricity
(eccentricity_mean)
2758-2775 F18.16 --- s_ecc Eccentricity standard deviation
(eccentricity_std)
2777-2794 F18.16 --- b_ecc Eccentricity standard deviation
16th percentile (eccentricity_16%)
2796-2813 F18.16 --- ecc Eccentricity standard deviation
50th percentile (eccentricity_50%)
2815-2832 F18.16 --- B_ecc Eccentricity standard deviation
84th percentile (eccentricity_84%)
2834-2851 F18.16 kpc rperimean Mean pericentric radius (rperi_mean)
2853-2870 F18.16 kpc s_rperi Pericentric radius standard
deviation (rperi_std)
2872-2889 F18.16 kpc b_rperi Pericentric radius 16th percentile
(rperi_16%)
2891-2908 F18.16 kpc rperi Pericentric radius 50th percentile
(rperi_50%)
2910-2928 F19.16 kpc B_rperi Pericentric radius 84th percentile
(rperi_84%)
2930-2948 F19.16 kpc rapoamean Mean apocentric radius (rapoa_mean)
2950-2967 F18.16 kpc s_rapoa Apocentric radius standard deviation
(rapoa_std)
2969-2987 F19.16 kpc b_rapoa Apocentric radius 16th percentile
(rapoa_16%)
2989-3007 F19.16 kpc rapoa Apocentric radius 50th percentile
(rapoa_50%)
3009-3027 F19.16 kpc B_rapoa Apocentric radius 84th percentile
(rapoa_84%)
3029-3046 F18.16 kpc zmaxmean Mean maximum Galactic height
(zmax_mean)
3048-3065 F18.16 kpc s_zmax Maximum Galactic height standard
deviation (zmax_std)
3067-3084 F18.16 kpc b_zmax Maximum Galactic height 16th
percentile (zmax_16%)
3086-3103 F18.16 kpc zmax Maximum Galactic height 50th
percentile (zmax_50%)
3105-3122 F18.16 kpc B_zmax Maximum Galactic height 84th
percentile (zmax_84%)
3124-3142 F19.16 kpc rguidmean Mean guiding radius (rguiding_mean)
3144-3161 F18.16 kpc s_rguid Guiding radius standard deviation
(rguiding_std)
3163-3181 F19.16 kpc b_rguid Guiding radius 16th percentile
(rguiding_16%)
3183-3201 F19.16 kpc rguid Guiding radius 50th percentile
(rguiding_50%)
3203-3221 F19.16 kpc B_rguid Guiding radius 84th percentile
(rguiding_84%)
--------------------------------------------------------------------------------
Note (1): Results retrieved from unidam (Mints & Hekker, 2017A&A...604A.108M 2017A&A...604A.108M,
Cat. J/A+A/604/A108; 2018A&A...618A..54M 2018A&A...618A..54M 2018A&A...618A..54M 2018A&A...618A..54M)
Note (2): all the columns after (and including) 'angmomentxlxmean' are
estimated through running galpy (Bovy, 2015ApJS..216...29B 2015ApJS..216...29B) in the resampled
data for each star (100 resamples).
Note (3): Columns with 'lsr' indicate that it is in the Local Standard of Rest.
--------------------------------------------------------------------------------
Acknowledgements:
Maria Luiza Linhares Dantas, mlldantas(at)protonmail.com
(End) Patricia Vannier [CDS] 13-Mar-2025