Zobrazeno 1 - 10
of 61
pro vyhledávání: '"McClure, Robert D."'
Publikováno v:
2009, AJ, 137, 3743
We present 98 spectroscopic binary orbits resulting from our ongoing radial-velocity survey of the old (7 Gyr) open cluster NGC 188. All but 13 are high-probability cluster members based on both radial-velocity and proper-motion membership analyses.
Externí odkaz:
http://arxiv.org/abs/1512.04991
Publikováno v:
2008, AJ, 135, 2264
(Abridged) We present the results of our ongoing radial-velocity (RV) survey of the old (7 Gyr) open cluster NGC 188. Our WIYN 3.5m data set spans a time baseline of 11 years, a magnitude range of 12<=V<=16.5 (1.18-0.94 MSun), and a 1 deg. diameter r
Externí odkaz:
http://arxiv.org/abs/1512.04983
We present new BVRI broad-band photometry for the old open cluster NGC188 based upon analysis of 299 CCD images either obtained by us, donated by colleagues, or retrieved from public archives. We compare our results on a star-by-star basis with data
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409548
Publikováno v:
Be accpected for publication in the October 1998 issue of the PASP
A total of 597 radial-velocity observations for 112 stars in the ~1.6 Gyr old open cluster NGC 7789 have been obtained since 1979 with the radial velocity spectrometer at the Dominion Astrophysical Observatory. The mean cluster radial velocity is -54
Externí odkaz:
http://arxiv.org/abs/astro-ph/9807057
Autor:
McClure, Robert D.
Repeated radial velocities have been measured for a sample of 10 subgiant CH (sgCH) stars over a period of about 15 years. Long-term velocity variations are exhibited by all but one star, and spectroscopic orbits have been calculated for six of them.
Externí odkaz:
http://arxiv.org/abs/astro-ph/9702034
Autor:
McClure, Robert D.
After 16 years of radial-velocity observations of a sample of 22 R-type carbon stars, no evidence for binary motion has been detected in any of them. This is surprising considering that approximately 20% of normal late-type giants are spectroscopic b
Externí odkaz:
http://arxiv.org/abs/astro-ph/9701066
A catalog of 383 radial velocities for red giants in the globular cluster M22 has been compiled from the literature and from new observations accumulated between 1972 and 1994. This 22-year baseline is the longest available for any sample of globular
Externí odkaz:
http://arxiv.org/abs/astro-ph/9605013
Publikováno v:
The Annals of the American Academy of Political and Social Science, 1976 May 01. 425, 88-97.
Externí odkaz:
https://www.jstor.org/stable/1040936
Publikováno v:
Publications of the Astronomical Society of the Pacific, 1978 Apr 01. 90(534), 170-178.
Externí odkaz:
https://www.jstor.org/stable/40677141
Autor:
CRAMPTON, DAVID, McCLURE, ROBERT D.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 1979 Feb 01. 91(539), 117-119.
Externí odkaz:
https://www.jstor.org/stable/40677457