2024A&A...684A.131T

Query : 2024A&A...684A.131T

2024A&A...684A.131T - Astronomy and Astrophysics, volume 684A131 (2024/4-1)

HdC and EHe stars through the prism of Gaia DR3 3D distribution and Gaia's chromatic PSF effects.

TISSERAND P., CRAWFORD C.L., SOON J., CLAYTON G.C., RUITER A.J. and SEITENZAHL I.R.

Abstract (from CDS):

Context. Upon its release the Gaia DR3 catalogue has led to tremendous progress in multiple fields of astronomy by providing the complete astrometric solution for nearly 1.5 billion sources.
Aims. We analysed the photometric and astrometric results for Hydrogen-deficient Carbon (HdC), Extreme Helium (EHe), and DYPer type stars to identify any potential biases. This analysis aimed to select stars suitable for kinematic and spatial distribution studies.
Methods. We investigated the information obtained from the Gaia image parameter determination (IPD) process, which was cross-matched with Gaia light curves. One main objective was to understand the impact of photometric declines in R Coronae Borealis (RCB) stars on Gaia astrometry.
Results. Based on the evidence gathered, we have reached the conclusion that the astrometric fits for numerous RCB stars, including R CrB itself, are not valid due to the Gaia point spread function (PSF) chromaticity effect in both shape and centroid. The astrometric results of all stars with a significant time-dependent colour variation should be similarly affected. RCB stars might thus be promising sources to correct this effect in future Gaia releases. Furthermore, after validating the Gaia astrometric results for 92 stars, we observed that the majority of HdC and EHe stars are distributed across the three old stellar structures, the thick disk, the bulge and the halo. However, we have also uncovered evidence indicating that some HdC and EHe stars exhibit orbits characteristic of the thin disk. This is also particularly true for all DYPer type stars under study. Finally, we have produced a list of star memberships for each Galactic substructure, and provided a list of heliocentric radial velocities and associated errors for targets not observed by Gaia DR3.
Conclusions. We are beginning to observe a relationship between kinematics, stellar population, and metallicity in RCB and EHe stars. That relation can be explained, within the double degenerate scenario, by the large range in the delay time distribution expected from population synthesis simulations, particularly through the HybCO merger channel.

Abstract Copyright: © The Authors 2024

Journal keyword(s): stars: carbon - stars: chemically peculiar - stars: distances - stars: kinematics and dynamics - supergiants - white dwarfs

Simbad objects: 170

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Number of rows : 170
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MSX SMC 014 Mi* 00 46 16.33 -74 11 13.6         19.872 ~ 15 0
2 IRAS 00450+7401 RC* 00 48 22.3210072536 +74 17 57.401360052   21.1   19.2   ~ 10 0
3 RAW 658 RC* 00 51 13.61 -73 10 36.2     17.56   16.41 C 12 0
4 IRAS 00483+6440 RC* 00 51 28.0817851920 +64 56 51.711895428           ~ 11 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
6 [TWM2009] EROS2-SMC-RCB-4 RC* 01 04 53.15 -72 04 04.0         17.28 ~ 10 0
7 BD+37 442 HS* 01 58 33.4346638392 +38 34 23.842803324   9.69 9.92     sdOHe 73 0
8 V* DY Per RC* 02 35 17.1274583280 +56 08 44.717128260   12.88 11.09 9.93 8.64 C-R4+ 81 0
9 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
10 V* XX Cam RC* 04 08 38.7489702792 +53 21 39.350441448 8.35 8.10 7.27     F8I 145 0
11 [KDM2001] 2730 C* 05 13 42.99 -76 23 56.1           C 3 0
12 UCAC4 116-006672 Pe* 05 15 28.9782568896 -66 48 37.434206304   13.269 12.545 12.540 11.990 ~ 9 0
13 OGLE LMC-RCB-10 RC* 05 20 48.210 -70 12 12.54     17.912   14.943 ~ 12 0
14 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
15 DCMC J052554.90-694353.8 RC* 05 25 54.9749259487 -69 43 53.984240200         14.550 C 11 0
16 M 38 OpC 05 28 40.0 +35 49 08   6.69 6.4     ~ 184 2
17 OGLE LMC-RCB-17 RC* 05 32 13.3497958320 -69 55 57.679962240         14.440 ~ 9 0
18 OGLE LMC-LPV-80740 RC* 05 42 21.90 -69 02 59.1         15.793 ~ 15 0
19 V* SU Tau RC* 05 49 03.7301227728 +19 04 21.867600252   10.72 9.10     C1,0_Hd_CH0 157 1
20 SV* HV 12075 PN 05 58 25.9824484048 -69 44 25.806526886   16.276 15.612 15.236   ~ 23 0
21 [TWM2009] EROS2-LMC-RCB-6 RC* 06 12 10.5123716592 -74 05 09.934738548           ~ 6 0
22 2MASS J06544616-1048325 pA* 06 54 46.1643701544 -10 48 32.601721752   12.99 12.27 12.08   OB+ 23 0
23 V* V487 Vel RC* 09 18 01.5982089720 -54 02 27.423480984     10.6   9.252 C8,3 21 0
24 BD+37 1977 HS* 09 24 26.3929652664 +36 42 53.295009624   9.86 10.15     sdO 52 0
25 HE 1015-2050 C* 10 17 34.2278764752 -21 05 13.879026744   16.97 16.30   15.059 C 9 0
26 V* DN Leo Pu* 10 38 55.2343433712 +10 03 48.486337812   9.76 9.93     Bp 150 0
27 V* UX Ant RC* 10 57 09.0588420456 -37 23 55.133370312   12.67 12.37     C-Hd 48 0
28 C* 2001 C* 12 26 57.9608485968 -68 24 15.075612324   13.31 11.69   9.434 R 9 0
29 V* UW Cen RC* 12 43 17.1901954368 -54 31 40.763998596   10.84 10.13     K 123 0
30 UCAC4 355-065245 Pe* 13 03 13.5630730245 -19 09 22.634063636   14.561 12.763 12.232   ~ 5 0
31 V* Y Mus RC* 13 05 48.1948797744 -65 30 46.624502484   11.3 10.50     Fp_Hd 79 0
32 IRAS 13203-6721 RC* 13 23 54.4662087096 -67 37 20.894792304           ~ 6 0
33 V* DY Cen RC* 13 25 34.0847063328 -54 14 43.129581792     12.00     C-Hd/B5-6Ie 105 0
34 TYC 8672-1426-1 Pe* 13 56 40.2056405616 -57 40 01.275519468   13.243 12.172 11.870   ~ 6 0
35 V* BX Cir Pu* 14 01 36.4829811264 -66 09 56.163698820 11.79 12.62 12.58 12.75   OB+ 69 0
36 V* V821 Cen Pu* 14 14 58.6292612424 -46 17 19.294106424 9.09 9.89 9.98     (B)p 145 0
37 PG 1415+492 HS* 14 17 02.7630761088 +48 57 28.499041188   14.15 14.30 14.67   sdBC1VHe38 28 1
38 V* V854 Cen RC* 14 34 49.4024471640 -39 33 19.201288284   7.13 11.69     Ce 214 0
39 V* Z UMi RC* 15 02 01.3633505568 +83 03 48.629861424   12.54 11.40     C 60 0
40 V* S Aps RC* 15 09 24.5365973688 -72 03 45.182766996 11.52 10.86 9.60     C 124 0
41 HD 137613 Pe* 15 27 48.3151103352 -25 10 10.124004468 9.56 8.71 7.54 6.71 6.22 C-Hd1Ib: 113 0
42 V* V354 Nor Pu* 15 38 59.2502866152 -48 35 57.899036220 11.57 11.95 11.48 11.37   B 37 0
43 V* V409 Nor RC* 15 44 25.0733838216 -50 45 01.262858364   14.77 11.31 10.62 13.19 C4,3 16 0
44 C* 2277 C* 15 47 39.1348589904 -44 35 13.821903060   12.80 12.13     R2 7 0
45 V* R CrB RC* 15 48 34.4154827352 +28 09 24.295852440 6.44 6.31 5.71 5.26 5.08 G0Iep 798 0
46 SOPS IV e-67 C* 15 50 33.0359740512 -39 44 11.287105512   12.491 11.101 10.797   R 8 0
47 V* IO Nor RC* 16 22 28.8312240744 -48 35 55.689778608   13.44 11.28   9.10 ~ 17 0
48 V* RT Nor RC* 16 24 18.6679360920 -59 20 38.565480480   11.34 10.60     R 85 0
49 V* V2205 Oph Pu* 16 28 35.3724415104 -09 19 31.849139568 9.79 10.56 10.5     B 102 0
50 IRAS 16314-3756 RC* 16 34 50.3636656224 -38 02 18.712460292           ~ 6 0
51 V* LV TrA RC* 16 35 45.7879131144 -67 07 36.693992244 9.91 9.26 8.32     C-Hd1II: 70 0
52 V* V652 Her pA* 16 48 04.6934854032 +13 15 42.420402252   10.31 10.51     ~ 147 0
53 C* 2377 RC* 16 54 43.6094939520 -49 25 55.429364676   13.0 11.8     R 12 0
54 UCAC4 283-109062 Pe* 17 00 47.6208628350 -33 30 55.704619441   16.396 14.634 13.833   ~ 4 0
55 SV* HV 8988 RC* 17 01 01.4139841488 -50 15 34.822751940   18.93   12.67 14.01 ~ 11 0
56 UCAC4 283-110415 Pe* 17 02 44.5706437685 -33 35 15.439041098   14.497 12.942 12.643   ~ 3 0
57 2MASS J17034387-3851266 RC* 17 03 43.8757197072 -38 51 26.687988864           ~ 6 0
58 UCAC4 319-101945 Pe* 17 05 40.1410969876 -26 16 56.592768865   13.573 12.652 12.465   ~ 4 0
59 V* GV Oph RC* 17 05 41.2536137184 -26 50 03.355293228         11.09 ~ 11 0
60 C* 2413 RC* 17 14 14.4557880024 -21 26 13.781301576   13.6     10.81 R 12 0
61 SV* HV 7863 RC* 17 15 19.7319711528 -29 05 37.401105768           R0 38 0
62 ASAS J171710-2043.3 RC* 17 17 10.2272157744 -20 43 15.790728468   12.36 11.52   10.699 ~ 8 0
63 2MASS J17181536-3413400 RC* 17 18 15.3695684504 -34 13 39.982763288           ~ 5 0
64 IRAS 17155-4347 RC* 17 19 08.5166113464 -43 50 44.558422656         15.844 ~ 7 0
65 UCAC4 328-102283 Pe* 17 19 29.0308577668 -24 28 33.774872050   15.348 13.743 13.272   ~ 4 0
66 EROS2-star cg1235m14181 RC* 17 19 58.5113727768 -30 04 21.507107592           ~ 7 0
67 V* V2552 Oph RC* 17 23 14.5548283752 -22 52 06.314546712   11.90 10.92     C-Hd 30 0
68 UCAC4 305-133867 RC* 17 24 47.5195688928 -29 04 18.736504356   15.083 13.635 12.994   ~ 7 0
69 2MASS J17255380-3124211 RC* 17 25 53.7992973336 -31 24 21.255466536           ~ 5 0
70 Terz V 1680 RC* 17 29 37.1104695456 -30 39 36.846224964           ~ 8 0
71 V* AC Ser RC* 17 29 51.8088859848 -10 17 16.017636912   13.29 12.44     ~ 9 0
72 IRAS 17284-4326 RC* 17 32 02.7612840168 -43 29 06.241439904           ~ 7 0
73 V* V532 Oph RC* 17 32 42.6072233088 -21 51 40.757995188         16.56 ~ 25 0
74 UCAC4 245-127207 Pe* 17 34 26.2041746975 -41 05 22.086301446       12.094   ~ 4 0
75 Terz V 2637 RC* 17 35 18.1099005264 -26 53 49.237101276           ~ 9 0
76 V* AO Her Mi* 17 35 36.2849528544 +50 24 39.863412792           ~ 16 0
77 Terz V 2960 RC* 17 39 20.7391600224 -27 57 22.685213304           ~ 7 0
78 UCAC4 348-115072 Pe* 17 40 48.4843764597 -20 32 20.042465675       13.160   ~ 5 0
79 UCAC4 325-115052 RC* 17 41 19.5746668681 -25 06 21.501743708   17.105 15.011 14.346   ~ 5 0
80 HD 160641 HS* 17 41 51.5791786632 -17 53 48.462200880 9.15 10.01 9.85 10.08 9.59 sdOC9.5II-IIIHe40 128 0
81 2MASS J17422375-2132006 LP? 17 42 23.7496452772 -21 32 00.601360901       12.627   ~ 6 0
82 CD-46 11775 pA* 17 42 33.9915492936 -46 58 48.829063584   11.14 11.27     OB+ 43 0
83 2MASS J17424229-2418056 Pe* 17 42 42.2912813081 -24 18 05.718862036   16.222 14.211 13.695   ~ 3 0
84 IRAS 17395-3619 RC* 17 42 57.1992887808 -36 20 52.067626872           ~ 7 0
85 UCAC4 338-109646 Pe* 17 43 05.6470295180 -22 24 57.368114896   15.200 13.802 13.525   ~ 5 0
86 IRAS 17400-3749 RC* 17 43 28.5028087778 -37 50 29.067619605       14.679   ~ 8 0
87 2MASS J17442550-1937537 pA* 17 44 25.5054075744 -19 37 53.754611844   12.8 12.60 12.62   OB+ 25 0
88 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
89 [TMW2008] EROS2-GC-RCB-05 RC* 17 46 00.3388085832 -33 47 56.701259160           ~ 8 0
90 Terz V 2046 RC* 17 46 16.2303423072 -32 57 40.868363772       15.982   ~ 8 0
91 UCAC2 21602821 RC* 17 46 45.9122318256 -25 03 14.125081536       15.279 12.54 ~ 6 0
92 [TMW2008] EROS2-GC-RCB-09 RC* 17 48 30.9044283528 -24 22 56.887342716           ~ 7 0
93 [TMW2008] EROS2-GC-RCB-11 RC* 17 48 41.56848 -23 00 26.7120           ~ 8 0
94 UCAC4 285-134593 RC* 17 48 51.2983283592 -33 06 17.205146352       14.215   ~ 7 0
95 V* V653 Sco RC* 17 49 15.6554349744 -39 13 16.580241012         14.341 ~ 13 0
96 UCAC4 329-116115 RC* 17 51 07.1301096048 -24 23 57.446219076       15.667   ~ 6 0
97 LS IV -01 2 Pu* 17 51 26.8365068760 -01 43 21.127711008 10.88 11.4 10.9     OB+ 52 0
98 IRAS 17491-3410 RC* 17 52 25.5059556168 -34 11 28.146181632         11.584 ~ 8 0
99 2MASS J17524872-2845190 RC* 17 52 48.72 -28 45 19.1           ~ 7 0
100 IRAS 17522-2811 RC* 17 55 21.7568003424 -28 11 31.353482400           ~ 6 0
101 IRAS 17530-1647 RC* 17 55 58.5233714232 -16 47 44.424556584         14.185 ~ 8 0
102 IRAS 17550-0753 RC* 17 57 49.7712653664 -07 53 14.983835532           ~ 10 0
103 MACHO 401.48170.2237 RC* 17 57 58.9348311759 -28 18 12.847306046       14.905   ~ 8 0
104 C* 2510 C* 18 01 32.1891959856 -38 56 32.298712908   13.30 11.79 11.635   R 7 0
105 [TMW2008] EROS2-GC-RCB-13 RC* 18 01 58.2467350488 -27 36 48.394478484           ~ 8 0
106 V* NO Ser Pu* 18 03 55.5266289144 -01 00 23.228086608 10.53 10.7 10.3     B 65 0
107 HD 318952 RC* 18 04 49.7413378968 -32 43 13.625483844   12.14 10.40     R0 27 0
108 IRAS 18029-1513 RC* 18 05 50.4996467808 -15 13 01.668049248           ~ 7 0
109 LS IV +06 2 HS* 18 06 55.4522031744 +06 21 57.246453756   12.11 12.14 12.32   sdBC1VHe39 37 0
110 V* WX CrA RC* 18 08 50.4871793760 -37 19 43.210670520   11.75 11.00     R5 68 0
111 TYC 435-2248-1 Pe* 18 11 35.6159110536 +01 54 32.585291676   10.881 10.414 10.308   ~ 4 0
112 UCAC4 309-179087 Pe* 18 11 43.3222475401 -28 14 21.211616249       11.794   ~ 5 0
113 SOPS II e-4 RC* 18 12 03.6898708344 -28 08 36.230120484   13.4       R 10 0
114 IRAS 18100-2750 RC* 18 13 14.8765489324 -27 49 41.033038100           ~ 8 0
115 V* V3795 Sgr RC* 18 13 23.5642449000 -25 46 40.857266928       10.940 10.10 ~ 48 0
116 SOPS II e-12 C* 18 13 40.8136778664 -31 29 54.323827944   12.49 11.37     R 9 0
117 V* VZ Sgr RC* 18 15 08.5724613648 -29 42 29.491053228   11.15 10.46     ~ 57 0
118 V* V4017 Sgr LP? 18 18 02.2891556904 -29 29 33.041142744   12.12 10.90     K0: 9 0
119 V* RS Tel RC* 18 18 51.2223564000 -46 32 53.427456132   10.80 9.96     R0 84 1
120 MACHO 308.38099.66 RC* 18 19 27.4228855848 -21 24 08.199993852           ~ 9 0
121 V* PV Tel s?b 18 23 14.6623123440 -56 37 44.138664012 8.60 9.20 9.30     B5?I?pec 130 0
122 IRAS 18203-2831 RC* 18 23 34.24536 -28 29 57.1452           ~ 6 0
123 V* GU Sgr RC* 18 24 15.5810208792 -24 15 26.353387944   11.40 11.33     R0 70 0
124 IRAS 18244-2010 RC* 18 27 23.3932081579 -20 08 30.233234347       16.061   ~ 6 0
125 ATO J277.4326-19.0462 RC* 18 29 43.8317746584 -19 02 46.237213860       14.460   ~ 8 0
126 MACHO 301.45783.9 RC* 18 32 18.5979046176 -13 10 49.624542444           ~ 8 0
127 IRAS 18364+4720 RC* 18 37 51.2557124664 +47 23 23.467931844           ~ 25 0
128 V* V348 Sgr pA* 18 40 19.9290428808 -22 54 29.308207716   12.1       B0/1?I?e 192 0
129 UCAC4 421-087536 RC* 18 41 58.4048024856 -05 48 19.348662816   16.493 13.789 13.112   ~ 7 0
130 IRAS 18399-1257 RC* 18 42 46.2545200704 -12 54 14.782006764         14.796 ~ 12 0
131 LS 5121 HS* 18 43 16.6073721048 -18 31 27.933194856 12.8 13.58 13.25 13.39   sdBC0IIHe40 21 0
132 V* MV Sgr RC* 18 44 31.9665722184 -20 57 12.863610864 12.82 13.56 12.00 13.37   B2pec-Hd 111 0
133 UCAC4 379-127188 Pe* 18 44 41.4958405393 -14 15 02.135520718       14.187   ~ 4 0
134 V* FH Sct RC* 18 45 14.8470961608 -09 25 36.106185432           C 37 0
135 GALEX J184559.8-413827 HS* 18 45 59.8596109032 -41 38 28.043014308   14.49 14.60 14.91   sdBN2VHe38 17 0
136 HD 173409 C* 18 46 26.6291621232 -31 20 32.081310924   10.43 9.54 8.85 8.44 C-Hd 57 0
137 V* V CrA RC* 18 47 32.3096196393 -38 09 32.307864378       10.765   R0 114 0
138 UCAC4 391-103478 Pe* 18 54 17.2577980230 -11 50 23.086562364       13.214   ~ 4 0
139 ZTF J185525.52-025145.7 RC* 18 55 25.5277727424 -02 51 45.731439756       14.273   ~ 7 0
140 C* 2679 C*? 18 56 35.5196937456 -16 09 11.134563012   12.2       ~ 6 0
141 UCAC4 505-097395 Pe* 18 57 19.9508312210 +10 59 21.718549900   15.262 13.478 12.854   ~ 4 0
142 Kiso C4-43 RC* 18 58 41.8054326792 -02 20 11.284678824       16.222   C 14 0
143 V* V4152 Sgr RC* 18 58 47.2884174600 -29 30 18.072815580   10.58 9.41     C-Hd 62 0
144 UCAC4 510-095327 Pe* 18 59 28.3433800929 +11 49 33.972757086   15.074 13.358 12.821   ~ 4 0
145 V* V4732 Sgr Pu* 18 59 39.5771671848 -14 26 17.543500548 11.19 11.5 10.9     OB+ 42 0
146 IRAS 18592+1451 RC* 19 01 33.6845279136 +14 56 09.594625668   16       ~ 10 0
147 UCAC4 338-184069 Pe* 19 02 26.5358176483 -22 28 45.043614908   12.885 12.009 11.887   ~ 5 0
148 ASAS J190640-1623.9 RC* 19 06 39.8742417552 -16 23 59.152703676   11.52 10.77   10.202 ~ 10 0
149 V* SV Sge RC* 19 08 11.7737560992 +17 37 41.167903944           R2 78 0
150 V* V1157 Sgr RC* 19 10 11.8275220920 -20 29 41.973885096           R 26 0
151 GALEX J191049.5-441713 HS* 19 10 49.5260275704 -44 17 13.612097688     12.96 13.27 13.15 sdBC0.2VIHe39 9 0
152 V* RY Sgr RC* 19 16 32.7668605944 -33 31 20.340212592 6.20 6.27 6.25     Cpec 370 0
153 HD 182040 Pe* 19 23 10.0773440616 -10 42 11.536959456 8.77 8.14 7.05 6.25 5.80 C-Hd2II: 158 0
154 V* ES Aql RC* 19 32 21.6146259144 -00 11 30.957877284     11.76 12.12   C 45 0
155 HAT 199-06241 RC* 19 39 35.4872775384 +34 34 47.190149472   12.72 11.41 11.112 10.286 ~ 7 0
156 CD-35 13668 LP? 19 44 36.8982327456 -34 58 56.501766300   12.68 11.18     ~ 4 0
157 UCAC4 276-208257 Pe* 19 44 40.5979937479 -34 54 42.232895499   12.152 11.462 11.396   ~ 5 0
158 V* V1920 Cyg Pu* 19 45 17.2712347176 +33 58 26.596281540 9.81 10.41 10.18   10.134 B2/3 52 0
159 EC 19529-4430 HS* 19 56 30.7416295992 -44 22 18.781794480 10.78 11.79 12.35     sdB3IVHe35 7 0
160 V* V482 Cyg RC* 19 59 42.5731664472 +33 59 27.937220100   12.91 11.36   9.029 C-Hd 72 0
161 EC 20111-6902 HS* 20 16 09.3244420200 -68 53 33.423113688 14.86 15.86 15.91 16.077   sdBC1.5VIIHe38 9 0
162 C* 2891 C* 20 19 42.7862744328 +05 04 04.047596004   13.839 13.055 12.786   R 7 0
163 EC 20236-5703 HS* 20 27 37.1800949976 -56 53 56.223747708 13.65 14.616 14.701 15.099   sdBC2.5IVHe35 7 0
164 NSV 13098 RC* 20 30 04.9664336352 -62 07 59.222380872   14     15.816 ~ 8 0
165 BPS CS 22940-0009 HS* 20 30 20.1694119096 -59 50 39.351355764 12.70 13.85 14.00 14.18   sdBC1VHe38 18 0
166 CD-51 12650 Pe* 20 39 34.7780982528 -51 23 03.854275152   11.102 10.457     ~ 8 0
167 V* FQ Aqr Pu* 20 51 21.3360113136 +02 18 46.360439064 9.18 9.62 9.52     F 71 0
168 V* U Aqr RC* 22 03 19.6990459464 -16 37 35.281076700   12.16 11.17     C-Hd 106 0
169 V* UV Cas RC* 23 02 14.6592341400 +59 36 36.693038052   11.89 11.80     F0/5Ib 68 0
170 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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