2025AJ....170..184W


Query : 2025AJ....170..184W

2025AJ....170..184W - Astron. J., 170, 184 (2025/September-0)

TESS Photometry and LAMOST Spectroscopy of 10 Detached Eclipsing Binaries.

WANG M., YUAN H., BAI Z., DONG Y., ZHOU M., YANG M., HE Y., MA S., ZHANG X. and ZHANG H.

Abstract (from CDS):

This study presents a thorough analysis of 10 detached eclipsing binaries that contain main-sequence stars. We have utilized a multifaceted approach, incorporating data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), TESS photometry, and broadband photometric spectral energy distributions, to determine the atmospheric parameters, radii, and masses of the component stars with high precision. The integration of these diverse data sets allows for the cross verification of results, thereby enhancing the accuracy and trustworthiness of our findings. Our investigation reveals consistent atmospheric parameters and stellar radii across the three methodologies, with exceptions like TIC 369605666 and 54759992, where the effective temperatures determined by the spectra differ from those calculated using the light-curve orbital solution. We explored possible reasons for the discrepancies in parameter estimation among the different methods for specific sources. Utilizing precise stellar parameters, determined and validated by multiple means, we compared them with PARSEC models to assess these samples' evolutionary states and infer their ages. Regarding the determination of binary ages, the components of most sources are in agreement. However, for two targets with eccentric orbits, where the component stars' ages diverge, we explored the potential causes.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Binary stars - Detached binary stars - Eclipsing binary stars

Simbad objects: 15

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Number of rows : 15
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 UCAC4 733-003225 * 00 17 39.0272333542 +56 29 44.495144919           ~ 1 0
2 UCAC4 670-020785 EB* 03 44 42.3116650530 +43 55 43.644843753           ~ 2 0
3 [KC2019] Theia 560 As* 04 47 27.88 +47 04 17.8           ~ 3 0
4 UCAC4 676-032092 * 04 56 14.7902206379 +45 10 09.977009098           ~ 1 0
5 * alf Ori s*r 05 55 10.30536 +07 24 25.4304 4.38 2.27 0.42 -1.17 -2.45 M1-M2Ia-Iab 1789 0
6 NSVS 9784102 EB* 06 34 47.3393563680 +18 52 45.911693280   11.36 10.90 10.89   ~ 6 0
7 TYC 2964-113-1 * 07 54 27.4915584528 +40 34 49.074986784   12.44 12.08     ~ 1 0
8 UCAC4 519-048131 * 08 51 18.0824878313 +13 45 41.057713746   13.000 12.356 12.268   ~ 4 0
9 2MASS J08543250-2537320 * 08 54 32.5134237570 -25 37 31.923483139           ~ 1 0
10 NSVS 7417650 EB* 09 01 20.0881668888 +24 32 41.240939712   13.962 13.490 13.198   ~ 7 0
11 2MASS J17503397-5248001 * 17 50 33.9841094313 -52 48 00.268677650           ~ 1 0
12 V* V2290 Cyg EB* 19 35 23.0944282512 +48 03 00.791770608   14.0 13.628   13.201 A9.2 48 0
13 2MASS J20373765+4255566 EB* 20 37 37.6605847088 +42 55 56.610720459           ~ 2 0
14 UCAC4 603-137084 * 22 27 19.7869057899 +30 33 26.626898312           ~ 1 0
15 TYC 2759-1353-1 SB* 23 06 10.4808956712 +34 40 22.004087664   11.60 10.92     ~ 2 0

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