Multiband Photometry of the Chromospherically Active & Spotted Binary System IM Peg—the Guide Star for the Gravity Probe B Mission

2010 ◽  
Vol 122 (892) ◽  
pp. 670-682 ◽  
Author(s):  
Robert Zellem ◽  
Edward F. Guinan ◽  
Sergio Messina ◽  
Antonino F. Lanza ◽  
Richard Wasatonic ◽  
...  
Keyword(s):  
Binary System ◽  
Gravity Probe B ◽  
Gravity Probe ◽  
Guide Star

Status of the cryogenic telescope and guide star for Gravity Probe B

2000 ◽  
Vol 25 (6) ◽  
pp. 1189-1192 ◽  
Author(s):  
Suwen Wang ◽  
D.-H. Gwo ◽  
K.A. Bower ◽  
L.W. Huff ◽  
J.A. Lipa
Keyword(s):  
Gravity Probe B ◽  
Gravity Probe ◽  
Guide Star

scholarly journals VLBI FOR GRAVITY PROBE B . V. PROPER MOTION AND PARALLAX OF THE GUIDE STAR, IM PEGASI

2012 ◽  
Vol 201 (1) ◽  
pp. 5 ◽  
Author(s):  
M. I. Ratner ◽  
N. Bartel ◽  
M. F. Bietenholz ◽  
D. E. Lebach ◽  
J.-F. Lestrade ◽  
...  
Keyword(s):  
Proper Motion ◽  
Gravity Probe B ◽  
Gravity Probe ◽  
Guide Star

scholarly journals Progress in VLBI Stellar Astrometry for the NASA/Stanford Relativity Mission (Gravity Probe B)

1998 ◽  
Vol 164 ◽  
pp. 385-386
Author(s):  
M. I. Ratner ◽  
D. E. Lebach ◽  
I. I. Shapiro ◽  
N. Bartel ◽  
M. F. Bietenholz ◽  
...  
Keyword(s):  
General Relativity ◽  
Standard Error ◽  
Proper Motion ◽  
Gravity Probe B ◽  
Frame Dragging ◽  
Vlbi Observations ◽  
Gravity Probe ◽  
Guide Star ◽  
Radio Stars ◽  
Relativity Mission

AbstractThe NASA/Stanford Relativity Mission (Gravity Probe B) is to test the unverified “frame-dragging” prediction of general relativity through measurements of the precessions of orbiting gyroscopes. For mission accuracy goals to be met, the proper motion of a “guide star,” whose position will be used as an inertial reference, must be determined in an extragalactic reference frame with a standard error less than 0.5 mas/yr. We discuss our VLBI observations of the current guide-star candidates (radio stars HR 1099, HR 5110, and HR 8703) and our techniques for obtaining differential astrometric positions with the needed accuracy.

scholarly journals VLBI for Gravity Probe B: the guide star, IM Pegasi

2015 ◽  
Vol 32 (22) ◽  
pp. 224021 ◽  
Author(s):  
N Bartel ◽  
M F Bietenholz ◽  
D E Lebach ◽  
R R Ransom ◽  
M I Ratner ◽  
...  
Keyword(s):  
Gravity Probe B ◽  
Gravity Probe ◽  
Guide Star

The Gravity Probe-B star-tracking telescope

2003 ◽  
Vol 32 (7) ◽  
pp. 1401-1405 ◽  
Author(s):  
D.-H. Gwo ◽  
S. Wang ◽  
K.A. Bower ◽  
D.E. Davidson ◽  
P. Ehrensberger ◽  
...  
Keyword(s):  
Gravity Probe B ◽  
Star Tracking ◽  
Gravity Probe

The Gravity Probe B Data Analysis Filtering Approach

2009 ◽  
Vol 148 (1-4) ◽  
pp. 411-427 ◽  
Author(s):  
M. Heifetz ◽  
W. Bencze ◽  
T. Holmes ◽  
A. Silbergleit ◽  
V. Solomonik
Keyword(s):  
Data Analysis ◽  
Gravity Probe B ◽  
Gravity Probe ◽  
Filtering Approach

scholarly journals VLBI FOR GRAVITY PROBE B . IV. A NEW ASTROMETRIC ANALYSIS TECHNIQUE AND A COMPARISON WITH RESULTS FROM OTHER TECHNIQUES

2012 ◽  
Vol 201 (1) ◽  
pp. 4 ◽  
Author(s):  
D. E. Lebach ◽  
N. Bartel ◽  
M. F. Bietenholz ◽  
R. M. Campbell ◽  
D. Gordon ◽  
...  
Keyword(s):  
Gravity Probe B ◽  
Analysis Technique ◽  
Gravity Probe
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