NEW CCD OBSERVATIONS AND THE FIRST PHOTOMETRIC STUDY OF THE CONTACT BINARY AP UMI |
AWADALLA, N.S.
(Dept. of Astronomy, Stellar Lab., National Research Institute of Astronomy and Geophysics)
HANNA, M.A. (Dept. of Astronomy, Stellar Lab., National Research Institute of Astronomy and Geophysics) ISMAIL, M.N. (Department of Astronomy, Faculty of Sciences of El Azhar University) HASSAN, I.A. (Department of Astronomy, Faculty of Sciences of El Azhar University) ELKHAMISY, M.A. (Dept. of Astronomy, Stellar Lab., National Research Institute of Astronomy and Geophysics) |
1 | Cutri, R. M., Skrutskie, M. F., van Dyk, S., et al. 2003, VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources, yCat, 2246, 0 |
2 | El-Sadek, M. A. 2002, Study of the Properties of Some Late-Type Eclipsing Binary Systems, MSc Thesis, Cairo University, Egypt |
3 | Eggen, O. J. 1967, Contact Binaries II, Mem. Royal Astron. Soc., 70, 111 |
4 | Eggen, O. J., & Iben, I. J. 1989, Starbursts, Blue Stragglers, and Binary Stars in Local Superclusters and Groups. II – The Old Disk and Halo Populations, AJ, 97, 431 DOI |
5 | Prša, A., & Zwitter, T. 2005, A Computational Guide to Physics of Eclipsing Binaries. I. Demonstrations and Perspectives, ApJ, 628, 426 DOI |
6 | Rucinski, S. M. 1973, The Photometric Proximity Effects in Close Binary Systems. VI. The Exact Solution for the Source Function in Monodirectional Illumination of the Grey Atmosphere, AcA, 23, 301 |
7 | Rucinski, S. M. 1974, Binaries. II. A- and W-Type Systems. The W UMa-Type Systems as Contact, AcA, 24, 119 |
8 | Rucinski, S. M. 2007, The Short-Period End of the Contact Binary Period Distribution Based on the All-Sky Automated Survey, MNRAS, 382, 393 DOI |
9 | Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds, ApJ, 500, 525 DOI |
10 | Schlafly, E. F., & Finkbeiner, D. P. 2011, Measuring Reddening with Sloan Digital Sky Survey Stellar Spectra and Recalibrating SFD, ApJ, 737, 103 DOI |
11 | Smith, R. C. 1984, The Theory of Contact Binaries, Quart. J. Royal Astron. Soc., 25, 405 |
12 | Torres, G., & Ribas, I. 2002, Absolute Dimensions of the M-Type Eclipsing Binary YY Geminorum (Castor C): A Challenge to Evolutionary Models in the Lower Main Sequence, ApJ, 567, 1140 DOI |
13 | van Hamme, W. 1993, New Limb-Darkening Coefficients for Modeling Binary Star Light Curves, AJ, 106, 2096 DOI |
14 | O’Connell, D. M. K. 1951, The So-Called Periastron Effect in Close Eclipsing Binaries; New Variable Stars (fifth list), Riverview Pub., 2, 85 |
15 | Zacharias, N., Monet, D. G., Levine, S. E., Urban, S. E., Gaume, R., &Wycoff, G. L. 2004, The Naval Observatory Merged Astrometric Dataset (NOMAD), AAS, 205, 4815 |
16 | Binnendijk, L. 1970, The Orbital Elements of W Ursae Majoris Systems, Vistas in Astronomy, 12, 217 DOI |
17 | Guinan, E. F., Ribas, I., Fitzpatrick, E. L., Gimenez, A., Jordi, C., McCook, G. P., & Popper, D. M. 2000, Eclipsing Binaries as Astrophysical Laboratories: Internal Structure, Core Convection, and Evolution of the B-Star Components of V380 Cygni, ApJ, 544, 409 DOI |
18 | Kazarovets, E. V., Samus, N. N., Durlevich, O. V., Kireeva, N. N., & Pastukhova, E. N. 2015, The 81st Name-List of Variable Stars. Part I – RA 00h to 17h30, IBVS 6151 |
19 | Bradstreet, D. H., & Guinan, E. F. 1994, Stellar Mergers and Acquisitions: The Formation and Evolution of W Ursae Majoris Binaries, in ASP Conf. Ser., 56, 228 |
20 | Khrusiov, A. V. 2012, 43 New Variable Stars, Peremennye Zvezdy Prilozhenie, 12, No. 6 |
21 | Cox, A. N. 2002, Allen's Astrophysical Quantities, 4th edn. (New York: Springer) |
22 | Lohr, M. E., Norton, A. J., Kolb, U. C., Anderson, D. R., Faedi, F., & West, R. G. 2012, Period Decrease in Three SuperWASP Eclipsing Binary Candidates Near the Short-Period Limit, A&A, 542, 124 DOI |
23 | Lucy, L. B. 1967, Gravity-Darkening for Stars with Convective Envelopes, Z. Astrophys., 65, 89 |
24 | Monet, D. G. 1998, The 526,280,881 Objects In The USNO-A2.0 Catalog, BAAS, 30, 1427 |
25 | Pribulla, T., Kreiner, J. M., & Tremko, J. 2003, Catalogue of the Field Contact Binary Stars, CoSka, 33, 38 |
26 | Vilhu, O. 1982, Detached to Contact Scenario for the Origin of W UMa Stars, A&A, 109, 17 |
27 | Wang, J. M. 1994, The Thermal Relaxation Oscillation States of Contact Binaries, ApJ, 434, 277 DOI |
![]() |