Zobrazeno 1 - 10
of 116
pro vyhledávání: '"SHAPIRO, IRWIN I."'
Autor:
Chandler, John F., Battat, James B. R., Murphy, Jr., Thomas W., Reardon, Daniel, Reasenberg, Robert D., Shapiro, Irwin I.
We describe for the first time in the scientific literature the Planetary Ephemeris Program (PEP), an open-source general-purpose astrometric data analysis program. We discuss, in particular, the implementation of pulsar timing analysis, which was re
Externí odkaz:
http://arxiv.org/abs/2103.16745
Autor:
Turyshev, Slava G., Murphy, Jr., Thomas W., Adelberger, Eric G., Battat, James, Currie, Douglas, Folkner, William M., Gundlach, Jens, Merkowitz, Stephen M., Nordtvedt, Kenneth L., Reasenberg, Robert D., Shapiro, Irwin I., Shao, Michael, Stubbs, Christopher W., Tinto, Massimo, Williams, James G., Yu, Nan
The recent discovery of "dark energy" has challenged Einstein's general theory of relativity as a complete model for our macroscopic universe. From a theoretical view, the challenge is even stronger: general relativity clearly does not extend to the
Externí odkaz:
http://arxiv.org/abs/0902.3004
Autor:
Barkana, Rennan, Lehar, Joseph, Falco, Emilio E., Grogin, Norman A., Keeton, Charles R., Shapiro, Irwin I.
We examine models of the mass distribution for the first known case of gravitational lensing. Several new sets of constraints are used, based on recent observations. We remodel the VLBI observations of the radio jets in the two images of Q0957+561, s
Externí odkaz:
http://arxiv.org/abs/astro-ph/9808096
We present long-slit LRIS/Keck spectroscopic observations of the gravitational lens system 0957+561. Averaged over all of our data, the rest-frame velocity dispersion sigma_v of the central lens galaxy G1 is sigma_v = 279 +- 12 km/s. However, there a
Externí odkaz:
http://arxiv.org/abs/astro-ph/9702152
Quadruple gravitational lens systems offer the possibility of measuring time delays for image pairs, microlensing effects, and extinction in distant galaxies. Observations of these systems may be used to obtain estimates of H_o and to study the vario
Externí odkaz:
http://arxiv.org/abs/astro-ph/9612182
Autor:
Cappallo, Roger J., Hinteregger, Hans F., Levine, James I., Nesman, Edwin F., Webber, John C., Whitney, Alan R., Clark, Thomas A., Ma, Chopo, Ryan, James, Corey, Brian E., Counselman, Charles C., Herring, Tomas A., Shapiro, Irwin I., Knight, Curtis A., Shaffer, David B., Vandenberg, Nancy R., Lacasse, Richard, Mauzy, Robert, Rayhrer, Benno, Schupler, Bruce R., Pigg, J. C.
Publikováno v:
Science, 1983 Jan 01. 219(4580), 51-54.
Externí odkaz:
https://www.jstor.org/stable/1689794
Autor:
Ostro, Steven J., Chandle, John F., Hine, Alice A., Rosema, Keith D., Shapiro, Irwin I., Yeomans, Donald K.
Publikováno v:
Science, 1990 Jun . 248(4962), 1523-1528.
Externí odkaz:
https://www.jstor.org/stable/2874758
Publikováno v:
Science, 1985 Aug 01. 229(4712), 442-446.
Externí odkaz:
https://www.jstor.org/stable/1695651
Autor:
Ostro, Steven J., Hudson, R. Scott, Jurgens, Raymond F., Rosema, Keith D., Campbell, Donald B., Yeomans, Donald K., Chandler, John F., Giorgini, Jon D., Winkler, Ron, Rose, Randy, Howard, S. Denise, Slade, Martin A., Perillat, Phil, Shapiro, Irwin I.
Publikováno v:
Science, 1995 Oct 01. 270(5233), 80-83.
Externí odkaz:
https://www.jstor.org/stable/2888217
Publikováno v:
Science, 1968 Oct . 162(3851), 352-355.
Externí odkaz:
https://www.jstor.org/stable/1725151