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

Autor: John A. Lipa, K.A. Bower, L. W. Huff, S. Wang, Dz-Hung Gwo

Publikováno v: Advances in Space Research. 25:1189-1192

We describe the status of the development and testing of the star tracking telescope for Gravity Probe B. The fused quartz telescope with an aperture of 14 cm and 3.8 m effective focal length is attached to the gyroscope housing and continuously poin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf335f420d8a05b0b685b9a4b003bbb6
https://doi.org/10.1016/s0273-1177(99)00985-0

Cryo-test results of NIRCam optical elements

Autor: E. T. Kvamme, L. W. Huff, L. A. Ryder

Publikováno v: SPIE Proceedings.

An example is given of how cryogenic optical testing is being performed for the NIRCam instrument. A 94 mm diameter Lithium Fluoride lens was mounted and thermally cycled between room temperature and approximately 60 K. Interferometric measurements w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8a5c679907f5dbe46dab982d78f2413
https://doi.org/10.1117/12.742098

The Gravity Probe B test of general relativity

Autor: C W F Everitt, B Muhlfelder, D B DeBra, B W Parkinson, J P Turneaure, A S Silbergleit, E B Acworth, M Adams, R Adler, W J Bencze, J E Berberian, R J Bernier, K A Bower, R W Brumley, S Buchman, K Burns, B Clarke, J W Conklin, M L Eglington, G Green, G Gutt, D H Gwo, G Hanuschak, X He, M I Heifetz, D N Hipkins, T J Holmes, R A Kahn, G M Keiser, J A Kozaczuk, T Langenstein, J Li, J A Lipa, J M Lockhart, M Luo, I Mandel, F Marcelja, J C Mester, A Ndili, Y Ohshima, J Overduin, M Salomon, D I Santiago, P Shestople, V G Solomonik, K Stahl, M Taber, R A Van Patten, S Wang, J R Wade, P W Worden, N Bartel, L Herman, D E Lebach, M Ratner, R R Ransom, I I Shapiro, H Small, B Stroozas, R Geveden, J H Goebel, J Horack, J Kolodziejczak, A J Lyons, J Olivier, P Peters, M Smith, W Till, L Wooten, W Reeve, M Anderson, N R Bennett, H Dougherty, P Dulgov, D Frank, L W Huff, R Katz, J Kirschenbaum, G Mason, D Murray, R Parmley, M I Ratner, G Reynolds, P Rittmuller, P F Schweiger, S Shehata, K Triebes, J VandenBeukel, R Vassar, T Al-Saud, A Al-Jadaan, H Al-Jibreen, M Al-Meshari, B Al-Suwaidan

Publikováno v: Classical and Quantum Gravity. 32:224001

The Gravity Probe B mission provided two new quantitative tests of Einstein's theory of gravity, general relativity (GR), by cryogenic gyroscopes in Earth's orbit. Data from four gyroscopes gave a geodetic drift-rate of −6601.8 ± 18.3 marc-s yr−

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b98cfe7c86cb8ee004c88ee71d1c8ed6
https://doi.org/10.1088/0264-9381/32/22/224001

The design and performance of the Gravity Probe B telescope.

Autor: Suwen Wang, J A Lipa, D-H Gwo, K Triebes, J P Turneaure, R P Farley, D Davidson, K A Bower, E B Acworth, R J Bernier, L W Huff, P F Schweiger, J H Goebel

Publikováno v: Classical & Quantum Gravity; 11/19/2015, Vol. 32 Issue 22, p1-1, 1p