2022RNAAS...6...33P

Query : 2022RNAAS...6...33P

2022RNAAS...6...33P - Research Notes of the AAS, 6, 33 (2022/February-0)

Gaia EDR3 Data of Post-AGB Stars with Overabundance of s-process Elements: Evolutionary Status and Binarity.

PARTHASARATHY M.

Abstract (from CDS):

Kamath et al. analyzed Gaia EDR3 data of 18 post-asymptotic giant branch (AGB) supergiants having overabundance of s-process elements, some of which exhibit unusually low luminosities in disagreement with expectations of s-process nucleosynthesis. I have examined the Gaia RUWE statistics of these stars, and find that 13 have RUWE ≫ 1.4, suggesting they are most likely unresolved binaries that contain low-mass companions. The remaining five stars have RUWE < 1.4 and I find that their luminosities are in agreement with post-AGB evolutionary tracks.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Stellar evolution - Asymptotic giant branch stars - Stellar distance - Post-asymptotic giant branch stars

Simbad objects: 31

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Number of rows : 31
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IRAS 01259+6823 AB? 01 29 33.6927492733 +68 39 14.508700691     12.6     F5Ie 14 0
2 IRAS Z02229+6208 pA* 02 26 41.7882689568 +62 21 21.981286008   14.69 12.00 11.16 8.92 G8-K0_0-Ia: 62 0
3 IRAS 04296+3429 pA* 04 32 56.9743899192 +34 36 12.459816288   16.13 14.09 13.64 11.64 G0Ia 147 0
4 IRAS 05113+1347 pA* 05 14 07.7664787608 +13 50 28.200887160   14.786 12.574 11.663 10.26 G5I 70 0
5 IRAS 05341+0852 pA* 05 36 55.0511076432 +08 54 08.656315452   15.37 13.45 12.95 11.43 F5I 120 0
6 IRAS 06530-0213 pA* 06 55 31.8205478808 -02 17 28.243142520   16.38 13.99 13.26   F5Ia 81 0
7 HD 56126 pA* 07 16 10.2590823192 +09 59 47.954735376   9.20 8.32     F0/5Ia 320 0
8 IRAS 07430+1115 s*r 07 45 51.3968191368 +11 08 19.561606620   13.94 12.22 11.82 10.69 M2I 63 0
9 IRAS 08143-4406 pA* 08 16 03.0217187040 -44 16 04.640255580           F8I 31 0
10 HD 70379 pA* 08 20 57.1025596512 -19 15 03.411879264   9.63 9.02 9.463   G1I 31 0
11 IRAS 08281-4850 pA* 08 29 40.5522281112 -49 00 04.329698184       13.50   F0I 21 0
12 CD-53 4543 pA* 12 20 15.0622728552 -53 55 31.444773420 10.29 9.74 9.36 9.69   A7I 46 0
13 HD 107369 pA* 12 20 44.9452565208 -32 33 26.107102908   9.78 9.60     A3IIp 42 0
14 IRAS 12360-5740 pA* 12 38 53.1155012016 -57 56 31.843075416   13.541 12.399 12.128   ~ 17 0
15 V* LN Hya pA* 12 56 30.1302499344 -26 27 37.047715704   9.104 8.697   9.291 F3Ia 120 0
16 SOPS IV a-266 pA* 13 27 36.9373937952 -50 52 06.132451764   13.04 12.33 12.16   A7/9Ie 19 0
17 IRAS 14325-6428 pA* 14 36 34.3740180048 -64 41 31.082196876   12.56 12.00     F5I 26 0
18 IRAS 14429-4539 pA* 14 46 13.7806495872 -45 52 05.292328188           G0Ie 31 0
19 HD 133656 pA* 15 07 27.4396006536 -48 17 53.894056668 8.09 7.88 7.58 8.45   A5Iab 53 0
20 HD 148743 pA* 16 30 30.0183563616 -07 30 52.031445516 6.94 6.824 6.461     A7Ib 96 0
21 HD 161796 pA* 17 44 55.4694563472 +50 02 39.482823336 8.00 7.68 7.21 6.77 6.51 F3Ib 326 0
22 IRAS 18025-3906 pA* 18 06 03.2989104264 -39 05 56.716718208       11.24 9.91 G2I 23 0
23 HD 335675 pA* 18 11 30.6621530616 +27 05 15.637762608   11.52 10.55     F3Ib 115 0
24 IRAS 19386+0155 pA* 19 41 08.2923311712 +02 02 31.208770140   12.32 11.20     F5Ib 42 0
25 HD 331319 pA* 19 49 29.5618298904 +31 27 16.248771432 10.4 9.91 9.32 9.24   F3Ibe 95 0
26 HD 187885 pA* 19 52 52.7033593752 -17 01 50.289441096   9.25 8.68 8.32   F2/6Ia 179 0
27 IRAS 20000+3239 LP* 20 01 59.5133268456 +32 47 32.799122916   16.13 13.39 11.80 10.32 ~ 82 0
28 V* V1401 Aql pA* 20 05 05.4136151160 -11 35 57.894584100   6.88 6.39     F2II 109 0
29 V* V448 Lac pA* 22 24 31.4283564864 +43 43 10.978781916 11.22 10.61 9.69     F7I 111 0
30 HD 235858 pA* 22 29 10.3748806056 +54 51 06.344572284   11.40 9.52 8.47 7.34 G5Ia 254 0
31 IRAS 23304+6147 pA* 23 32 44.7858431592 +62 03 49.090372272   15.36 12.99 12.23 10.50 G2Ia 117 0

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