Results 101 to 110 of about 84,390 (224)

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

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

Applying artificial intelligence to the control of space telescopes (extended abstract) [PDF]

The field of astronomy has recently benefited from the availability of space telescopes. The Hubble Space Telescope (HST), for instance, despite its problems, provides a unique and valuable view of the universe.
Bresina, John, Drummond, Mark, Levinson, Rich, Philips, Andrew, Swanson, Keith   +4 more
core   +1 more source

On the nature of the progenitors of three type II-P supernovae: 2004et, 2006my and 2006ov

, 2010
The pre-explosion observations of the type II-P supernovae 2006my, 2006ov and 2004et, are re-analysed. In the cases of supernovae 2006my and 2006ov we argue that the published candidate progenitors are not coincident with their respective supernova sites
Crockett, R. M., Eldridge, J. J., Mattila, S., Maund, J. R., Pastorello, A., Smartt, S. J., Stephens, A. W.   +6 more
core   +1 more source

Measuring Tracers of Planet Formation in the Atmosphere of WASP-77A b: Substellar O/H and C/H Ratios, with a Stellar C/O Ratio and a Potentially Superstellar Ti/H Ratio

The Astrophysical Journal Letters
We present a comprehensive atmospheric retrieval study of the hot Jupiter WASP-77A b using eclipse observations from the Hubble Space Telescope (HST) and JWST.
Billy Edwards, Quentin Changeat
doaj   +1 more source

HSTDEK: Developing a methodology for construction of large-scale, multi-use knowledge bases [PDF]

The primary research objectives of the Hubble Space Telescope Design/Engineering Knowledgebase (HSTDEK) are to develop a methodology for constructing and maintaining large scale knowledge bases which can be used to support multiple applications.
Freeman, Michael S.
core   +1 more source

Spitzer Resurrector Mission: Advantages for Space Weather Research and Operations

Aerospace
In 1979, NASA established the Great Observatory program, which included four telescopes (Hubble, Compton, Chandra, and Spitzer) to explore the Universe.
Shawn M. Usman, Giovanni G. Fazio, Christopher A. Grasso, Ryan C. Hickox, Cameo Lance, William B. Rideout, Daveanand M. Singh, Howard A. Smith, Angelos Vourlidas, Joseph L. Hora, Gary J. Melnick, Matthew Ashby, Volker Tolls, Steven Willner, Salma Benitez   +14 more
doaj   +1 more source

Time-resolved Hubble Space Telescope UV Observations of an X-Ray Quasiperiodic Eruption Source

The Astrophysical Journal Letters
X-ray quasiperiodic eruptions (QPEs) are a novel mode of variability in nearby galactic nuclei whose origin remains unknown. Their multiwavelength properties are poorly constrained, as studies have focused almost entirely on the X-ray band.
T. Wevers, M. Guolo, S. Lockwood, A. Mummery, D. R. Pasham, R. Arcodia   +5 more
doaj   +1 more source

The James Webb Space Telescope: Mission Overview and Status [PDF]

The James Webb Space Telescope (JWST) is the scientific successor to the Hubble Space Telescope. It is a cryogenic infrared space observatory with a 25 m2 aperture (6 m class) telescope that will achieve diffraction limited angular resolution at a ...
Greenhouse, Matthew
core   +1 more source

Dynamic auroral storms on Saturn as observed by the Hubble Space Telescope. [PDF]

Geophys Res Lett, 2014
Nichols JD, Badman SV, Baines KH, Brown RH, Bunce EJ, Clarke JT, Cowley SW, Crary FJ, Dougherty MK, Gérard JC, Grocott A, Grodent D, Kurth WS, Melin H, Mitchell DG, Pryor WR, Stallard TS.   +16 more
europepmc   +1 more source