Photometric study of the binary system NN Del

Authors: Gómez-Forrellad, J.M.1; Sánchez-Bajo, F.2; Corbera-Subirana, M.3; GarcÍa-Melendo, E.4; Vidal-Sainz, J.5

Source: Astrophysics and Space Science, Volume 283, Number 2, 2003 , pp. 297-304(8)

Publisher: Springer

Buy & download fulltext article:


Price: $47.00 plus tax (Refund Policy)


We present the results of the differential V light curve analysis of NN Del. We show that NN Del is an EA eclipsing binary system with a period of 99.27 days and a highly eccentric orbit. Photometric solutions obtained using the Russell and the Wilson-Devinney models seem to indicate that both components are very similar in radii and luminosities (assuming a F5 spectral type). Constraints imposed on the V luminosity of the system by the HIPPARCOS data suggest that the components of the system could be subgiants instead of main sequence stars.

Keywords: eclipsing binaries; light curve analysis; variable stars

Document Type: Research Article

Affiliations: 1: Grup d'Estudis Astronomics, Apartado 9481, 08080, Barcelona, Spain E-mail: 2: Departamento de Electrónica e Ingeniería Electromecánica, Escuela de Ingenierías Industriales, Universidad de Extremadura, Ctra de Elvas s/n. 06071, Badajoz, Spain; E-mail: 3: Departament d'Informàtica i Matemàtica, Escola Politècnica Superior, Universitat de Vic, Laura 13, 08500, Vic, Barcelona, Spain; E-mail: 4: Esteve Duran Observatory Foundation, Montseny 46, Urb. El Montanya, 08553, Seva, Barcelona, Spain; E-mail: 5: Grup d'Estudis Astronomics, Apartado 9481, 08080, Barcelona, Spain E-mail:

Publication date: January 1, 2003


Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page