velocity variation การใช้

• A period of 96.5 days has been derived from the radial velocity variations.
• The inner components can only be identified spectroscopically by their radial velocity variations.
• In 1902, William Wallace Campbell reported that ? Geminorum showed radial velocity variations.
• In the past, radial velocity variations have been reported, but this remains unconfirmed.
• Shallow models must also consider the significant lateral velocity variations in continental crust.
• Instead the long-term radial velocity variations may be caused by the star's magnetic cycle.
• Those stars showing radial velocity variations are then checked with the automated photometric telescopes from Fairborn Observatory.
• Similar wavelength-dependent radial velocity variations, also caused by starspots, have been detected on other T Tauri stars.
• The absorption lines in the optical spectrum show radial velocity variations, although there is significant uncertainty about the period.
• Analysis of the resulting data found that the radial velocity variations most likely indicated the existence of a planet.
• Higher resolution spectra show smaller slower radial velocity variations and it is assumed that C itself also has a companion.
• The Californians have refined their technique to making measurements of such velocity variations within an accuracy of 10 feet per second.
• Radial velocity variations with a period of 142 days hint about the possible presence of a planetary companion orbiting Beta Ophiuchi.
• Currently the presence of a substellar object has been retracted, invoking starspots as the actual cause for observed radial velocity variations.
• In order to determine the mass of the planet, measurements of the star's radial velocity variations were made by the N2K Consortium.
• Narrow hydrogen absorption lines are not generally considered to originate from this component and do not show the same radial velocity variations.
• Low-amplitude radial velocity variations with a period of 613 days in the bright giant have suggested the possible presence of a substellar companion.
• The companion has been identified from a high excitation component in the spectrum and from radial velocity variations, but the orbit is unknown.
• A companion, initially thought to be an extrasolar planet in a 39.6-day orbit was discovered in 1997 by observing the star's radial velocity variations.
• All other variants fail to increase the frontal area, yet swimmers using them still generate some thrust by the velocity variation and do not drown.