论文标题
GW LEO的第一光曲线解决方案和两个接触二进制系统的周期研究
The First Light Curve Solutions of GW Leo and Period Study of Two Contact Binary Systems
论文作者
论文摘要
我们对GW Leo进行了第一条光曲线分析，并为QT BOO获得了新的世纪。在两个接触二进制系统的目前光度研究中，我们发现这些二元系统的周期以Dp/dt = -6.21*10^（ - 3）天的GW LEO的yr^（-1）的速度降低，而DP/DT = -4.72*10^（ - 3）天yr^（ - 3）天yr^（ - 1）yr^（ - 1）yr^（ - 1）的qt boo boo boo。光曲线研究还产生了系统GW LEO是一种接触二进制的接触，其光度质量比为Q = 0.881+-0.030，clifut系数为f = 3％，倾斜度为54.060+-0.066度。由于O'Connell效应在光曲线的最大值中被称为不对称性，因此与溶液一起使用冷点。我们还将GW Leo与距离模量公式的距离计算为465.58+-23 PC，它相对接近使用Binary Systems的视差Gaia DR2测得的数量。此外，表示其组件在H-R图上的位置表示。
We performed the first light curve analysis of GW Leo and a new ephemeris is obtained for QT Boo. In the present photometric study of two contact binary systems, we found that the period of these binary systems is decreasing at a rate of dp/dt=-6.21*10^(-3) days yr^(-1) for GW Leo, and dp/dt=-4.72*10^(-3) days yr^(-1) for QT Boo, respectively. The light curve investigation also yields that the system GW Leo is a contact W UMa eclipsing binary with a photometric mass ratio of q=0.881+-0.030, a fillout factor of f=3%, and an inclination of 54.060+-0.066 deg. Due to the O'Connell effect which is known as asymmetries in the light curves' maxima, a cold spot is employed along with the solution. We also calculate the distance of GW Leo from the distance modulus formula as 465.58+-23 pc, which is relatively close to the quantity measured by the Gaia DR2 using the binary systems' parallax. Moreover, the positions of their components on the H-R diagram are represented.
