2018AJ....156...88L


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET11:10:32

2018AJ....156...88L - Astron. J., 156, 88-88 (2018/September-0)

Magnetic activity and period variation studies of the short-period eclipsing binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4.

LU H.-P., MICHEL R., ZHANG L.-Y. and CASTRO A.

Abstract (from CDS):

New multi-band CCD light curves of three binaries W UMa-type V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4 are presented. Spectroscopic data for V1175 Her and NSVS 2669503 show that their spectral types are G7V and K4V, respectively. Photometric solutions of these three objects were obtained with the help of the Wilson-Devinney program. We find that V1175 Her is a semi-detached binary star with a hot spot located on the secondary component, while NSVS 2669503 and 1SWASP J133417.80+394314.4 are contact eclipsing binaries with contact factors of f = 1.070 ± 0.002% and f = 21.250 ± 0.005%, respectively. Moreover, we found that the orbital period of V1175 Her is increasing at a rate of (+3.1 ± 0.1) x 10–7 days yr–1. This increase may be attributed to a dM1/dt=-0.93×10–7Myr–1 mass-transfer rate from the primary to the secondary component. Finally, we discuss the evolutionary stage of the component stars of these three systems.

Abstract Copyright: © 2018. The American Astronomical Society.

Journal keyword(s): binaries: eclipsing - stars: activity

Simbad objects: 24

goto Full paper

goto View the reference in ADS

Number of rows : 24

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* DV Psc EB* 00 13 09.2041073545 +05 35 43.005048643   11.61 10.61 10.312 9.131 K5Ve 58 0
2 V* EP And EB* 01 42 29.3381398172 +44 45 42.455589306   11.81 11.40     F8V 56 0
3 V* V1128 Tau EB* 03 49 27.7668450989 +12 54 43.845191941   10.30 9.64     G0 58 0
4 HD 34179 * 05 15 21.6972365260 +00 03 37.192200598   7.98 8.02     B8Ib/II 33 0
5 V* FZ Ori WU* 05 41 21.0048571059 +02 36 22.926329607   11.18 10.53     G0 53 0
6 V* V532 Mon WU* 07 04 30.6458380308 -00 21 05.471342791           ~ 27 0
7 V* XY UMa RS* 09 09 55.9355245408 +54 29 17.725267002       9.620   G5 242 0
8 V* V409 Hya EB* 09 10 09.5729523854 +03 44 34.459884591   12.01 11.44     ~ 16 0
9 V* LP UMa EB* 10 33 57.7932382682 +58 52 15.553309071           ~ 33 1
10 V* HH UMa dS* 11 04 48.1520454288 +35 36 26.618219780   10.92 10.39     F8 38 0
11 V* LO Com EB* 12 32 04.9080489849 +26 22 47.825680655   14.0 13.29 12.5   ~ 38 0
12 2MASS J12500559+5231242 IR 12 50 05.59608 +52 31 24.2256           ~ 1 0
13 NSVS 2669503 EB* 12 50 17.4062222904 +52 31 35.026192840     13.37     K4V 3 0
14 2MASS J12502674+5233221 IR 12 50 26.74128 +52 33 22.1076           ~ 1 0
15 2MASS J13341518+3940592 IR 13 34 15.18072 +39 40 59.2356           ~ 1 0
16 1SWASP J133417.80+394314.4 EB* 13 34 17.7929528797 +39 43 14.249367884     14.86     K2V 4 0
17 2MASS J13342182+3940205 IR 13 34 21.82416 +39 40 20.5644           ~ 1 0
18 TYC 1518-849-1 * 16 24 45.5045285588 +21 35 52.788049227   12.05 11.40     ~ 1 0
19 V* V1175 Her EB* 16 24 46.2197786818 +21 39 03.325207854   11.90 11.26     G7V 5 0
20 TYC 1518-763-1 * 16 24 56.1884260614 +21 36 05.404077080   13.47 12.76     ~ 1 0
21 Cl* NGC 6397 SAW V8 EB* 17 40 39.2670431263 -53 38 46.935784158   16.72 16.28   15.76 ~ 8 1
22 Cl* NGC 6397 SAW V7 EB* 17 40 43.916 -53 40 35.39   17.74 17.09 16.72   ~ 13 0
23 V* V441 Lac EB* 22 09 37.4560340148 +52 34 14.829030013   13.81 12.93 12.69   ~ 19 0
24 NGC 7789 OpC 23 57 24 +56 42.5   7.68 6.7     ~ 462 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2018AJ....156...88L and select 'bookmark this link' or equivalent in the popup menu


2021.03.03-11:10:32

© Université de Strasbourg/CNRS

    • Contact