2023MNRAS.519.2486S

Query : 2023MNRAS.519.2486S

2023MNRAS.519.2486S - Mon. Not. R. Astron. Soc., 519, 2486-2499 (2023/February-3)

A search for variable subdwarf B stars in TESS Full Frame Images III. An update on variable targets in both ecliptic hemispheres - contamination analysis and new sdB pulsators.

SAHOO S.K., BARAN A.S., WORTERS H.L., NEMETH P. and KILKENNY D.

Abstract (from CDS):

We present an update on the variable star survey performed on the TESS 30 min Full Frame Image (FFI) data reported by our first two papers in this series. This update includes a contamination analysis in order to identify false positives and analysis of the TESS 10 min FFI data collected during Years 3 and 4 of the mission. We clarify the variability status of 2 995 targets identifying 1 403 variable stars. In addition, we spectroscopically classify 24 pre-filtered targets sampled with the 10 min FFI data and discover 11 new sdB pulsators. Future follow-up space- and/or ground-based data of variables reported here, to identify the nature of their variability and reveal spectroscopic parameters of the stars, would complement this work.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): asteroseismology - stars: oscillations - subdwarfs

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 21

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Number of rows : 21
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 HD 275347 HS* 03 27 17.7211907016 +41 03 44.625982824   10.302 10.193 10.294   sdB/sdO 15 0
2 HD 254302 HS* 06 16 23.4469675368 +13 18 43.132294224   10.40 10.06     sdB/sdO 14 0
3 TYC 161-49-1 HS? 06 53 14.4460270800 +05 47 33.741758292   11.29 11.19     ~ 5 0
4 ATO J104.6541-23.0081 EB* 06 58 36.9877368535 -23 00 29.590653543   14.345   13.291   ~ 3 0
5 TYC 770-941-1 HS* 07 12 02.3965761408 +11 33 32.475010608   11.94 12.23     sdBHe5 15 0
6 GALEX J081756.4-175855 HS? 08 17 56.4755064744 -17 58 55.277622336           ~ 5 0
7 TYC 8161-1329-1 HS? 08 21 43.7652340128 -51 03 15.258895128   11.10 11.16     ~ 3 0
8 UCAC4 045-005206 HS? 08 35 35.6933559408 -81 00 58.227317244   13.171 13.379 13.627   ~ 4 0
9 TYC 7679-1613-1 HS? 08 41 58.7832440928 -40 33 49.554800892   11.26 10.96     ~ 5 0
10 TYC 8945-676-1 HS? 09 41 14.1877640304 -62 53 56.381363844   11.45 11.49     ~ 4 0
11 PG 0957+037 HS* 09 59 52.0149670488 +03 30 32.799535236     15.448     sdB 17 0
12 Gaia DR3 5915159531372950656 HS? 17 01 11.0643867504 -58 42 16.982244324           ~ 4 0
13 2MASS J17364460-5157476 * 17 36 44.6091351101 -51 57 47.674472152           ~ 1 0
14 GALEX J173645.5-515724 HS? 17 36 45.5873986536 -51 57 25.290549648           ~ 4 0
15 ATO J265.8117+21.5538 EB* 17 43 14.8114904661 +21 33 14.033136620           ~ 5 0
16 HS 1741+2133 HS* 17 43 19.0310761944 +21 32 37.570437456   13.82 13.99 14.21   sdOB 21 0
17 2MASS J19225496+4309059 CV* 19 22 54.9249621240 +43 09 05.312341080           ~ 15 0
18 UCAC4 653-107038 HS* 21 38 53.0483065629 +40 24 15.759376255   14.602 14.548 14.658   sdB/sdO 9 0
19 ATO J330.9394+45.9154 Pu* 22 03 45.4777297152 +45 54 55.702697724   11.66 11.25     ~ 3 0
20 UCAC4 680-117511 HS? 22 03 52.3128187584 +45 54 40.544033796       15.712   ~ 5 0
21 SB 825 HS? 23 45 54.4591084464 -39 32 08.603921652   13.8 13.6     A0 10 0

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