Results 51 to 60 of about 444,346 (144)

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

Another Servicing Mission to Extend Hubble Space Telescope's Science past the Next Decade [PDF]

arXiv, 2019
The Hubble Space Telescope has produced astonishing science over the past thirty years. Hubble's productivity can continue to soar for years to come provided some worn out components get upgraded. While powerful new ground-based and space telescopes are expected to come online over the next decade, none of them will have the UV capabilities that make ...
arxiv  

Detection of Rotational Acceleration of Bennu Using HST Light Curve Observations

Geophysical Research Letters, 2019
We observed the near‐Earth asteroid (101955) Bennu from the ground in 1999 and 2005, and with the Hubble Space Telescope (HST) in 2012, to constrain its rotation rate.
M. C. Nolan, E. S. Howell, D. J. Scheeres, J. W. McMahon, O. Golubov, C. W. Hergenrother, J. P. Emery, K. S. Noll, S. R. Chesley, D. S. Lauretta   +9 more
doaj   +1 more source

A Snapshot Survey of Nearby Supernovae with the Hubble Space Telescope

The Astrophysical Journal
Over recent decades, robotic (or highly automated) searches for supernovae (SNe) have discovered several thousand events, many of them in quite nearby galaxies (distances < 30 Mpc).
Raphael Baer-Way, Asia DeGraw, WeiKang Zheng, Schuyler D. Van Dyk, Alexei V. Filippenko, Ori D. Fox, Thomas G. Brink, Patrick L. Kelly, Nathan Smith, Sergiy S. Vasylyev, Thomas de Jaeger, Keto Zhang, Samantha Stegman, Timothy Ross, Sameen Yunus   +14 more
doaj   +1 more source

Star Formation as Seen by Low Mass Stars

Acta Polytechnica CTU Proceedings, 2014
Using the Hubble Space Telescope (HST) we have characterised and compared the physical properties of a large sample of pre-main sequence (PMS) stars spanning a wide range of masses (0:5 - 4Mʘ), metallicities (0:1 - 1 Zʘ) and ages (0:5 - 30 Myr).
Nino Panagia, Guido De Marchi
doaj   +1 more source

The world according to the Hubble Space Telescope [PDF]

arXiv, 2003
The Hubble Space Telescope (HST), in its thirteen years of operation, has allowed us to observe properties of the universe humans have been able, until very recently, to probe only with their thoughts. This review presents a brief summary of a few of the highlights of HST discoveries, discusses their physical implications, and identifies unsolved ...
arxiv  

A Hubble Space Telescope Catalog of 449 Galaxies Seen Through the Disk of M31 [PDF]

arXiv, 2010
From inspection of 30 Hubble Space Telescope ACS images of M31, we provide a catalog of 449 galaxies seen through the spiral disk. Measurements of the positions of the galaxies, their integrated magnitudes in two colors and their sizes, determined from isophotometry, are included in the catalog.
arxiv  

Genetic algorithms applied to the scheduling of the hubble space telescope [PDF]

, 1989
Jeffrey L. Sponsler
openalex   +1 more source

Residual non-Abelian dark matter and dark radiation

Physics Letters B, 2017
We propose a novel particle physics model in which vector dark matter (VDM) and dark radiation (DR) originate from the same non-Abelian dark sector.
P. Ko, Yong Tang
doaj   +1 more source

Expert systems tools for hubble space telescope observation scheduling [PDF]

, 1987
G. E. Miller, Don Rosenthal, William W. Cohen, Mark Johnston   +3 more
openalex   +1 more source