A study of the radial velocity of the star Θ 1 Ori C
作者： É A. Vitrichenko
DOI: 10.1134/1.1476981
关键词: Orbit 、 Astrophysics 、 Radial velocity 、 Orbital elements 、 Spectral line 、 Physics 、 Decimal digit 、 Stars 、 Star (graph theory)
摘要: The radial velocities of the star Θ1 Ori C were measured from IUE spectra and are compared with published data. Two companions (C1 C2) assumed to be present. probable periods for companion C1 can estimated formula P=729.6/L days, where L<13 is an integer. Radialvelocity curves constructed L=11 12. orbit turned out elliptical. At L=11, orbital elements P=66.3(1) γ=10.9(2) km s−1, K=6.1(4) ω=−2.88(5) rad, e=0.43(6), Ep=JD 2449044.7(4). errors in last decimal digit given parentheses. Companion C2 was as detected by temporal variations γ velocity C1. Its circular following elements: P=120(6) yr, γ=22(1) K=13(2) Ep=1911(3) yr.
springer.com
harvard.edu
sci-hub.se 参考文章(14)
Peter S. Conti, On the Accretion of Material by Theta Orionis C The Astrophysical Journal. ,vol. 174, ,(1972) , 10.1086/180953
Marc Gagné, Jean-Pierre Caillault, John R. Stauffer, Jeffrey L. Linsky, Periodic X-Ray Emission from the O7 V Star θ1 Orionis C The Astrophysical Journal. ,vol. 478, ,(1997) , 10.1086/310558
Nolan R. Walborn, Joy S. Nichols, A LARGE PERIODIC VARIATION IN THE STELLAR WIND OF THETA 1 ORIONIS C The Astrophysical Journal. ,vol. 425, ,(1994) , 10.1086/187303
Otto Struve, John Titus, Radial Velocities of the Four Stars of the Trapezium in Orion. The Astrophysical Journal. ,vol. 99, pp. 84- ,(1944) , 10.1086/144593
N. R. Walborn, Systematic variations in the spectrum of Theta-1 Orionis C The Astrophysical Journal. ,vol. 243, pp. L37- ,(1981) , 10.1086/183438
E. B. Frost, S. B. Barrett, O. Struve, Radial velocities of 368 helium stars. The Astrophysical Journal. ,vol. 64, pp. 1- 77 ,(1926) , 10.1086/142986
Nidia Morrell, Hugo Levato, Spectroscopic binaries in the Orion OB1 association Astrophysical Journal Supplement Series. ,vol. 75, pp. 965- 985 ,(1991) , 10.1086/191556
V. Straižys, G. Kuriliene, Fundamental Stellar Parameters Derived from the Evolutionary Tracks Astrophysics and Space Science. ,vol. 80, pp. 353- 368 ,(1981) , 10.1007/BF00652936
Helmut A. Abt, Ruyou Wang, Octavio Cardona, Spectroscopic binaries in the Orion Nebula cluster The Astrophysical Journal. ,vol. 367, pp. 155- 161 ,(1991) , 10.1086/169611
J. B. Holberg, M. A. Barstow, E. M. Sion, A High‐Dispersion Spectroscopic Survey of the Hot White Dwarfs: The
IUE
NEWSIPS SWP Echelle Data Set The Astrophysical Journal Supplement Series. ,vol. 119, pp. 207- 238 ,(1998) , 10.1086/313161