Sentences with phrase «radial velocities failed»

A 2.5 - year search analyzing radial velocities failed to find a large Jupiter or brown dwarf within 10 AUs of Gamma Leporis A (Murdoch et al, 1993).

A recent 2.5 - year search analyzing radial velocities failed to find a large Jupiter or brown dwarf within 10 AUs of Delta Eridani (Murdoch et al, 1993, pages 2 and 10).

A 2.5 - year search analyzing radial velocities failed to find a large Jupiter or brown dwarf within 10 AUs of Gamma Pavonis (Murdoch et al, 1993).

Not exact matches

On March 25, 2015, a team of astronomers using the Hubble Space Telescope revealed observations which indicate via the transit method that Alpha Centauri B may have a second planet «c» in a hot inner orbit, just outside planet candidate «b.» After observing Alpha Centauri B in 2013 and 2014 for a total of 40 hours, the team failed to detect any transits involving planet b (previously detected using the radial velocity variations method and recently determined not to be observed edge - on in a transit orbit around Star B).

Using the radial velocity technique pioneered by Geoffrey Marcy and Paul Butler, the Lick Planet Search for substellar companions has thus far failed to find a brown dwarf or large Jupiter - or Saturn - mass object in a «torch» orbit around Beta Comae Berenices (Cumming et al, 1999).

Using the radial velocity technique pioneered by Geoffrey Marcy and Paul Butler, the Lick Planet Search for substellar companions has thus far failed to find a brown dwarf or large Jupiter - or Saturn - mass object in a «torch» orbit around Chi1 Orionis A (Cumming et al, 1999).

Using the radial velocity technique pioneered by Geoffrey W. Marcy and R. Paul Butler, the Lick Planet Search for substellar companions has thus far failed to find a brown dwarf or large Jupiter - or Saturn - mass object in a «torch» orbit around BD +04 123 (Cumming et al, 1999).

Subsequently, more recent radial velocity analysis also failed to find supporting evidence (Young et al, 1987, page 5) for such an object.

Using the radial velocity technique pioneered by Geoffrey Marcy and Paul Butler, the Lick Planet Search for substellar companions has thus far failed to find a brown dwarf or large Jupiter - or Saturn - mass object in a «torch» orbit around Kappa Ceti (Cumming et al, 1999).

Subsequent studies failed to resolve a companion star, both by speckle interferometry (Hartkopf and McAlister, 1983) and by radial velocity analysis (Marcy and Benitz, 1989).

As CORVAL monitoring failed to detect significant radial velocity variations over period of 3,400 days — or over 9.3 years (Duquennoy and Mayor, 1991, pp. 492 and 506), the detection is now considered to be spurious.

An attempt to find large planets from December 1986 to February 1987 failed to detect large periodic variations in radial velocities (McMillan and Smith, 1987; more discussion at Hatzes et al, 2004).