Download Close binaries in the 21st century : new opportunities and by Alvaro Giménez; et al PDF

By Alvaro Giménez; et al

Show description

Read or Download Close binaries in the 21st century : new opportunities and challenges PDF

Similar astrophysics & space science books

Physical Processes in the Interstellar Medium

Actual strategies within the Interstellar Medium discusses the character of interstellar topic, with a powerful emphasis on uncomplicated actual ideas, and summarizes the current nation of information concerning the interstellar medium through supplying the most recent observational facts. Physics and chemistry of the interstellar medium are handled, with widespread references to observational effects.

Introduction to Solar Radio Astronomy and Radio Physics

1. 1. brief heritage of sunlight Radio Astronomy given that its beginning within the forties of our century, sunlight radio astronomy has grown into an in depth medical department comprising a couple of fairly assorted subject matters masking technical sciences, astrophysics, plasma physics, solar-terrestrial physics, and different disciplines.

Discovery of the First Asteroid, Ceres: Historical Studies in Asteroid Research

In keeping with large basic assets, many by no means formerly translated into English, this is often the definitive account of the origins of Ceres because it went from being categorized as a brand new planet to reclassification because the first of a formerly unknown team of celestial gadgets. Cunningham opens this serious second of astronomical discovery to complete glossy research for the 1st time.

Additional info for Close binaries in the 21st century : new opportunities and challenges

Example text

J. V. 2006 Abstract The formations of the blue straggler stars and the FK Com-type stars are unsolved problems in stellar astrophysics. One of the possibilities for their formations is from the coalescence of W UMa-type overcontact binary systems. 25) overcontact binary stars are a very important source to understand the phenomena of Blue Straggler/FK Com-type stars. Recently, 12 W UMa-type binary stars, FG Hya, GR Vir, IK Per, TV Mus, CU Tau, V857 Her, V410 Aur, XY Boo, SX CrV, QX And, GSC 619-232, and AH Cnc, were investigated photometrically.

The new time of minimum fits well to the forecast of the O − C curve published by Mayer et al. (1994); also minima published by Gorda (2000) fit the forecast. , 1998). The O − C graphs for this and the other stars are presented in Fig. 2. FZ CMa. New times of minima fit the LITE elements of Zasche (2005) quite well. 5 min. QZ Car. 53, as was observed for data by ASAS Springer 38 Astrophys Space Sci (2006) 304:37–39 Table 1 New times of minimum light System V1182 Aql LY Aur SZ Cam FZ CMa LZ Cen V606 Cen AH Cep TU Mus Fig.

1994)). UBV observations obtained by MW during 6 nights in 2004 with the 50 cm telescope at SAAO. Fluxes from IUE spectra, which were also used for RV determination by Stickland et al. (1996) and Penny et al. (1999). 2. Spectroscopic solution In the binary spectra the He I and He II lines of both components are of nearly equal strength. This confines the light curve solution: both temperatures should not differ by more than about 2000 K. Using the temperature scale by Springer 46 Astrophys Space Sci (2006) 304:45–47 Fig.

Download PDF sample

Rated 4.70 of 5 – based on 42 votes