National Aeronautics and Space Administration (NASA) to save Hubble Space Telescope. Significance of Hubble on the field of astronomy; Need for repairing and replacing the aging components of Hubble; Plans to operate the telescope using gyroscopes; Accomplishments of Hubble in the field of astronomy....
I completely agree with Peter's comments. The "fix" for the aberrated Hubble was to apply Schupmann's original use of "stop-shift" aberration theory to invent a new type of telescope. His achievement was both original and very good. Once a critic of someone's new idea said that it was...
Five years after a fifth and final shuttle servicing mission, theHubble Space Telescope's instruments are operating in near-flawless fashion and while one of its six stabilizing gyroscopes has failed, project managers are optimistic the observatory will be able to operate through the end of the de...
An Intermediate-Mass Black Hole in the Globular Cluster G1: Improved Significance from New Keck and Hubble Space Telescope Observations We present dynamical models for the massive globular cluster G1. The goal is to measure or place a significant upper limit on the mass of any central black.....
We present narrow-band Hubble Space Telescope images of the young planetary nebula AFGL 618. These images have allowed us to study the detailed morphology of shock-excited emission present in the bipolar lobes of this object. These images reveal the presence of three highly collimated outflows em...
R. L. Cohen, P. Guhathakurta, B. Yanny, D. P. Schneider, and J. N. Bahcall, "Globular Cluster Photometry with the Hubble Space Telescope.VI.WF/PC-I Observations of the Stellar Populations in the Core of M13 (NGC 6205)," AJ 113, pp. 669-681, Feb. 1997....
Althoughthe most recent image of Alpha Centauriisn’t the most detailed in the telescope’s catalog, it’s the brightest and best image of our neighboring star system yet. It also holds special significance in light of the new discovery of a potentially habitable exoplanet orbiting one of its...
N. Bahcall, "Globular Cluster Photometry With the Hubble Space Telescope. V. WFPC Study of M15's Central density Cusp," Astronomical Journal 111, pp. 267-+, Jan. 1996.Guhathakurta, P., Yanny, B., Schneider, D.P. and Bahcall, J.N., "Globular cluster photometry with the Hubble ...
We have used Hubble Space Telescope (HST) WFPC2 multiband observations of a field around SN 1987A in the Large Magellanic Cloud to measure its distance from the Sun. The observations allowed us to carefully determine the interstellar extinction along the line of sight to a large number of star...
The images of MCG 8-11-11 show only an unresolved nuclear source. No emission line gas associated with the extended radio source is detected. We estimate upper limits on the intensity of extended line emission in this galaxy and examine their significance. 展开 ...