The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

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

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

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) × 10-7 days yr-1. This increase may be attributed to a mass-transfer rate from the primary to the secondary component. Finally, we discuss the evolutionary stage of the component stars of these three systems.

binaries: eclipsing, stars: activity
0004-6256
1-13
Lu, Hong Peng
1b561309-3abe-4ae4-a48e-2fc1bf3c260e
Michel, Raul
44ee4d0c-7065-47be-ac7f-5f1b1572579d
Zhang, Li Yun
0ff2bea1-d318-4984-82a1-e6a2840510c2
Castro, Angel
66e6330d-d93a-439a-a69b-e061e660de61
Lu, Hong Peng
1b561309-3abe-4ae4-a48e-2fc1bf3c260e
Michel, Raul
44ee4d0c-7065-47be-ac7f-5f1b1572579d
Zhang, Li Yun
0ff2bea1-d318-4984-82a1-e6a2840510c2
Castro, Angel
66e6330d-d93a-439a-a69b-e061e660de61

Lu, Hong Peng, Michel, Raul, Zhang, Li Yun and Castro, Angel (2018) Magnetic activity and period variation studies of the short-period eclipsing binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4. Astronomical Journal, 156 (3), 1-13, [88]. (doi:10.3847/1538-3881/aad001).

Record type: Article

Abstract

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) × 10-7 days yr-1. This increase may be attributed to a mass-transfer rate from the primary to the secondary component. Finally, we discuss the evolutionary stage of the component stars of these three systems.

Text
aa-pdf - Version of Record
Available under License Creative Commons Attribution.
Download (2MB)

More information

Accepted/In Press date: 21 June 2018
e-pub ahead of print date: 9 August 2018
Published date: 1 September 2018
Keywords: binaries: eclipsing, stars: activity

Identifiers

Local EPrints ID: 423613
URI: http://eprints.soton.ac.uk/id/eprint/423613
ISSN: 0004-6256
PURE UUID: 1fe3aac6-7f39-4258-bd4e-9117f9fae23f

Catalogue record

Date deposited: 27 Sep 2018 16:30
Last modified: 25 Nov 2021 21:51

Export record

Altmetrics

Contributors

Author: Hong Peng Lu
Author: Raul Michel
Author: Li Yun Zhang
Author: Angel Castro

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×