Results 101 to 110 of about 88,017 (272)

Obtaining accurate radial velocities for Cepheid companions using the STIS echelles

EPJ Web of Conferences, 2017
We discuss the high dispersion echelle observations of the hot binary companions of six Cepheids with known radial-velocity orbits that we have obtained with the STIS FUV E140H mode on board the Hubble Space Telescope, with the goal of determining the ...
Proffitt C. R., Evans N.R., Winston E.M., Gallenne A., Kervella P.   +4 more
doaj   +1 more source

Hubble Space Telescope observations of Mars [PDF]

Hubble Space Telescope (HST) afforded the possibility of resolving features as small as 100 km on the Martian surface even when it is at the far point of its orbit. Therefore it is ideally suited for monitoring seasonal changes on the red planet.
Clancy, Todd, James, Philip B., Kahn, Ralph, Lee, Steve, Martin, Leonard, Singer, Robert, Zurek, Richard   +6 more
core   +1 more source

JWST Observations Reject Unrecognized Crowding of Cepheid Photometry as an Explanation for the Hubble Tension at 8σ Confidence

The Astrophysical Journal Letters
We present high-definition observations with the James Webb Space Telescope (JWST) of >1000 Cepheids in a geometric anchor of the distance ladder, NGC 4258, and in five hosts of eight Type Ia supernovae, a far greater sample than previous studies with ...
Adam G. Riess, Gagandeep S. Anand, Wenlong Yuan, Stefano Casertano, Andrew Dolphin, Lucas M. Macri, Louise Breuval, Dan Scolnic, Marshall Perrin, Richard I. Anderson   +9 more
doaj   +1 more source

Eyes on the Universe: The Legacy of the Hubble Space Telescope and Looking to the Future with the James Webb Space Telescope [PDF]

, 2011
Over the past 20 years the Hubble Space Telescope has revolutionized our understanding of the Universe. Most recently, the complete refurbishment of Hubble in 2009 has given new life to the telescope and the new science instruments have already produced ...
Straughn, Amber
core   +2 more sources

A Glimpse of the First Galaxies

, 2011
The recently refurbished Hubble Space Telescope reveals a galaxy from a time when the Universe was just 500 million years old, providing insights into the first throes of galaxy formation and the reionization of the Universe.Comment: Invited Nature "News
CC Steidel, Naveen A. Reddy, RA Kimble, RJ Bouwens, RJ Bouwens   +4 more
core   +1 more source

INFRARED TRANSMISSION SPECTROSCOPY OF THE EXOPLANETS HD 209458b AND XO-1b USING THE WIDE FIELD CAMERA-3 ON THEHUBBLE SPACE TELESCOPE [PDF]

, 2013
Drake Deming, Ashlee Wilkins, P. R. McCullough, Adam Burrows, Jonathan J. Fortney, Eric Agol, Ian Dobbs‐Dixon, Nikku Madhusudhan, Nicolas Crouzet, Jean-Michel Désert, Ronald L. Gilliland, Korey Haynes, Heather A. Knutson, Michael R. Line, Z. Magic, Avi M. Mandell, Sukrit Ranjan, David Charbonneau, Mark Clampin, Sara Seager, Adam P. Showman   +20 more
openalex   +1 more source

Hubble Space Telescope NICMOS Imaging of W3 IRS 5: A Trapezium in the Making? [PDF]

, 2005
S. T. Megeath, T. L. Wilson, Michael R. Corbin   +2 more
openalex   +1 more source

Spike: Artificial intelligence scheduling for Hubble space telescope [PDF]

Efficient utilization of spacecraft resources is essential, but the accompanying scheduling problems are often computationally intractable and are difficult to approximate because of the presence of numerous interacting constraints.
Jackson, Robert, Johnston, Mark, Miller, Glenn, Sponsler, Jeff, Vick, Shon   +4 more
core   +1 more source

The Star‐forming Region NGC 346 in the Small Magellanic Cloud withHubble Space TelescopeACS Observations. II. Photometric Study of the Intermediate‐Age Star Cluster BS 90 [PDF]

, 2007
Boyke Rochau, Dimitrios A. Gouliermis, Wolfgang Brandner, Andrew E. Dolphin, Thomas Henning   +4 more
openalex   +1 more source

Simultaneous [ITAL]Chandra[/ITAL] and [ITAL]Hubble Space Telescope[/ITAL] Observations of SMC X-1 [PDF]

, 2001
S. D. Vrtilek, J. C. Raymond, Bram Boroson, T. R. Kallman, H. Quaintrell, Richard McCray   +5 more
openalex   +1 more source