Zobrazeno 1 - 10
of 218
pro vyhledávání: '"GRIFFIN, R. F."'
Autor:
Griffin, R. E. M., Griffin, R. F.
HD~69479/80 is a composite-spectrum binary whose components are a late-G giant and an early-A dwarf. The orbit has a period of only 91 days (which seems short for a system containing a cool giant with a radius of $\sim$13 solar radii), and a very sma
Externí odkaz:
http://arxiv.org/abs/2009.08629
Radial-velocity observations made on more than a thousand nights are presented for the type star of the R Coronae Borealis (RCB) class. There are four principal sources: the Lick Observatory (1950-1953), the original Cambridge radial-velocity spectro
Externí odkaz:
http://arxiv.org/abs/1810.10823
Autor:
Griffin, R. F., Ak, N. Filiz
We present spectroscopic orbits for the active stars HD 82159 (GS Leo), HD 89959, BD +39 2587 (a visual companion to HD 112733), HD 138157 (OX Ser), HD 143705, and HD 160934. This paper is a sequel to one published in this journal in 2006, with simil
Externí odkaz:
http://arxiv.org/abs/1004.1835
Autor:
Griffin, R. F., Boffin, H. M. J.
Publikováno v:
The Observatory, 126, 401-421, 2006
The three objects have been identified as members of the recently recognized class of Gamma Doradus stars, which exhibit multi-periodic photometric variations that are thought to arise from non-radial pulsation. The particular objects treated here al
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612758
Autor:
Griffin, R. F., Boffin, H. M. J.
The two stars that form the subject of this paper are both short-period double- lined eclipsing binaries having non-circular orbits despite their short periods. Although the HD type of HD 152028 is G0, the integrated spectral type of the system must
Externí odkaz:
http://arxiv.org/abs/astro-ph/0306107
Direct imaging of the zeta Cnc system has resolved the fourth star in the system, which is in orbit around zeta Cnc C. The presence of the fourth star has been inferred for many years from irregularities in the motion of star C, and recently from C's
Externí odkaz:
http://arxiv.org/abs/astro-ph/0004284
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2004 Jun 01. 116(820), 558-564.
Externí odkaz:
https://www.jstor.org/stable/10.1086/420982
Autor:
Griffin, R. F.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2000 Mar . 112(769), 417-418.
Externí odkaz:
https://www.jstor.org/stable/10.1086/316535
Autor:
Griffin, R. F., Woolley, Richard
Publikováno v:
Biographical Memoirs of Fellows of the Royal Society, 1976 Nov 01. 22, 335-357.
Externí odkaz:
https://www.jstor.org/stable/769745