论文标题
彗星29p/Schwassmann-Wachmann 1活动的光度和光谱分析
Photometric and spectroscopic analysis of Comet 29P/Schwassmann-Wachmann 1 activity
论文作者
论文摘要
我们在6-M BTA望远镜（俄罗斯Sao Ras）和2011年2月20日，2011年5月20日，2011年5月20日，2011年5月20日，在巴西，巴西，俄罗斯SAO RAS）对29p/Schwassmann-Wachmann 1的光度和光谱观察进行了光度和光谱观测。光谱揭示了彗星昏迷中存在CO+和N2+排放，距离太阳的距离为5.25 au。投影缝隙中的比率[N2+]/[CO+]为0.013。通过BVR过滤器获得的图像显示出明亮的灰尘昏迷，表明活动水平很高。我们估计了彗星的颜色指数和颜色过多。用作彗星活动的指示的参数AF \ r {HO}在\ r {ho} = 10^4 km的参考光孔径中测量为2584 cm。灰尘产生构成33 kg/s和9.3*10^3 kg/s，它是使用不同方法获得的。我们还使用图像增强技术研究了彗星的形态，并在昏迷中发现了两个喷气机。
We carried out photometric and spectroscopic observations of comet 29P/Schwassmann-Wachmann 1 at the 6-m BTA telescope (SAO RAS, Russia) and the 1.6-m telescope of the National Laboratory for Astro-physics (LNA, Brazil) on February 20, 2012, and on May 31, 2011, respectively. The spectra revealed the presence of CO+ and N2+ emissions in the cometary coma at a distance of 5.25 AU from the Sun. The ratio [N2+]/[CO+] within the projected slit is 0.013. The images obtained through BVR filters showed a bright, dust coma, indicating a high level of activity. We estimated a colour index and a colour excess for the comet. The parameter Af\r{ho}, which is used as an indicator of a cometary activity, was measured to be 2584 cm in the reference optical aperture of \r{ho}=10^4 km. The dust production constituted 33 kg/s and 9.3*10^3 kg/s, it was obtained using different methods. We also investigated the morphology of the comet using image enhancement techniques and found two jets in the coma.
