V444 Cygni and CQ Cephei, these systems are important for determining the fundamental properties of Wolf-Rayet stars. The spectral type of V 444 Cygni is WN5 + 06. Features from the spectra of both stars are easily seen in the spectrum of …

We present results from a study of the eclipsing, colliding-wind binary V444 Cyg that uses a combination of X-ray and optical spectropolarimetric methods to describe the 3D nature of the shock and wind structure within the system. We have created the most

2023年10月19日 · Based on new and archival light curves and using the Hertzsprung method, we improved the photometric estimate of the secular increase rate of the orbital period in V444 Cyg, obtaining P ˙ ph = 0.119 ± 0.003 s yr −1.

2023年9月15日 · We present the results of new photometric and spectroscopic observations of WN5+O6 binary V444 Cyg and a detailed analysis of extant spectroscopy and photometry.

V444 Cygni (V444 Cyg / HD 193576 / HIP 100214 / WR 139) [6] ye una estrella binaria na constelación de Cygnus de magnitú aparente +7,94. Ye miembru del cúmulu Berkeley 86 y alcuéntrase aproximao a 6200 años lluz del Sistema Solar.. El sistema ta compuestu por una caliente estrella azul de tipu espectral O6III-V y una estrella de Wolf-Rayet de tipu WN5. . Constitúi una binaria eclipsante ...

2016年5月19日 · The fundamental properties of the Wolf-Rayet components of V444 Cygni and CQ Cephei such as mass, effective temperature, and luminosity are presented. These properties are consistent with these stars being young objects recently arrived on the main sequence.

Flickr photos, groups, and tags related to the "v444nph" Flickr tag.

We have created the most complete X-ray light curve of V444 Cyg to date using 40 kiloseconds of new data from Swift, and 200 kiloseconds of new and archived XMM-Newton observations. In addition, we have characterized the intrinsic, polarimetric phase-dependent behavior of the strongest optical emission lines using data obtained with the ...

4 likes, 0 comments - charlie_truck_photography on February 9, 2024: "NPH Haulage LTD V444 NPH, is seen on M62 (J7) 14/02/2023 #truckspotting"

2023年10月11日 · 女配她只想被渣(nph)免费全文阅读，女配她只想被渣(nph)完整版,本书情节跌宕起伏、扣人心弦，是一本情节与文笔俱佳的最新小说，三五中文免费提供女配她只想被渣(nph)VIP章节免费阅读