Results 71 to 80 of about 88,017 (272)

The Hubble Deep Fields [PDF]

, 2000
The Hubble space telescope observations of the northern Hubble deep field, and more recently its counterpart in the south, provide detections and photometry for stars and field galaxies to the faintest levels currently achievable, reaching magnitudes V ~
Dickinson, Mark, Ferguson, Henry C., Williams, Robert   +2 more
core   +2 more sources

First Detection of [SI] in Near‐IR JWST Observations of Io in Eclipse, and Comparison With SO Emissions, Evolving Volcanic Eruptions, and Prior UV HST‐STIS [SI] Emissions

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract We observed Io with the James Webb Space Telescope (JWST) NIRSpec/Integral Field Unit (1.0–5.3 μm, R∼2700 $R\sim 2700$) in August 2023 while the satellite was in eclipse. Thermal emission from Kanehekili Fluctus is consistent with the cooling of lava flows after a vigorous eruption in November 2022.
Imke de Pater, Darrell F. Strobel, Ashley Gerard Davies, Joachim Saur, Lorenz Roth, Katherine de Kleer, Emmanuel Lellouch, Zachariah Milby, Carl Schmidt, Thierry Fouchet, Michael H. Wong, Leigh N. Fletcher, Jake Harkett, Michael Roman, Richard J. Cartwright, Jason E. Perry, Julie Renaud‐Kim, Carolyn Jordan, Stephan Schlegel, David A. Williams, David M. Nelson   +20 more
wiley   +1 more source

AT2025ulz and S250818k: Zooming in with the Hubble Space Telescope

The Astrophysical Journal Letters
AT2025ulz is an optical/near-infrared transient discovered during follow-up of the candidate gravitational wave (GW) event S250818k. Its young age (≲1 day), rapid decline, and strong color evolution over the first 48 hr classify it as a potential ...
Yu-Han Yang, Eleonora Troja, Marko Ristić, Muskan Yadav, Massine El Kabir, Rubén Sánchez-Ramírez, Rosa L. Becerra, Chris L. Fryer, Brendan O’Connor, Simone Dichiara, Alberto J. Castro-Tirado, Camila Angulo-Valdez, Josefa Becerra González, José A. Font, Ori Fox, Lei Hu, Youdong Hu, William H. Lee, Margarita Pereyra, Alicia M. Sintes, Alan M. Watson, K. Océlotl C. López Mendoza   +21 more
doaj   +1 more source

Late-time acceleration with steep exponential potentials

European Physical Journal C: Particles and Fields, 2017
In this letter, we study the cosmological dynamics of steeper potential than exponential. Our analysis shows that a simple extension of an exponential potential allows to capture late-time cosmic acceleration and retain the tracker behavior.
M. Shahalam, Weiqiang Yang, R. Myrzakulov, Anzhong Wang   +3 more
doaj   +1 more source

Hubble Space Telescope [PDF]

The Hubble Space Telescope will employ magnetic torque controllers, which make use of the Earth's magnetic field augmented by four reaction wheels. DC torques are easily allowed for, but variations, orbit by orbit, can result in excessive wheel speeds ...
Nurre, G.
core   +1 more source

Modeling Jovian Plasma‐Europa Interactions: Innovative Atmosphere and Ionosphere Depiction for JUICE Mission Insights

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract The JUpiter ICy moons Explorer (JUICE) mission, launched by the European Space Agency (ESA) in April 2023, aims to explore Jupiter and its icy moons, particularly focusing on Europa, Ganymede, and Callisto. This study uses the Latmos Hybrid Simulation (LatHyS) model to simulate Europa's plasma and field environment, emphasizing the upcoming ...
C. Baskevitch, R. Modolo, B. Cecconi, F. Leblanc, J.‐E. Wahlund, S. Aizawa, A. V. Oza   +6 more
wiley   +1 more source

V659 Cen: System Members Updated

The Astronomical Journal
V659 Cen is a classical Cepheid which is part of a multiple system. Previous observations have shown that a hot companion dominates an ultraviolet spectrum and a cooler main-sequence star dominates an XMM-Newton spectrum. The Hubble Space Telescope Space
Nancy Remage Evans, Charles Proffitt, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye   +10 more
doaj   +1 more source

Ultraviolet number counts of galaxies from Swift UV/Optical Telescope deep imaging of the Chandra Deep Field South

, 2009
Deep Swift UV/Optical Telescope (UVOT) imaging of the Chandra Deep Field South is used to measure galaxy number counts in three near ultraviolet (NUV) filters (uvw2: 1928 A, uvm2: 2246 A, uvw1: 2600 A) and the u band (3645 A). UVOT observations cover the
A. A. Breeveld, Arnouts, Baldry, Beckwith, C. Gronwall, Capak, D. A. Hinshaw, D. E. Vanden Berk, Deharveng, E. A. Hoversten, Eddington, Eliche-Moral, F. E. Marshall, Fioc, Gardner, Gehrels, Giacconi, Giavalisco, Lehmer, M. H. Siegel, M. Still, P. A. Curran, P. W. A. Roming, Poole, Sasseen, Schlegel, Smail, T. S. Koch, Teplitz, Trenti, Volonteri, Wyder, Xu, Yasuda   +33 more
core   +1 more source

Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars [PDF]

, 2006
We present low-resolution ultraviolet spectra of 14 low redshift ...
Ari Laor, Arieh Konigl, Bassem Sabra, C. Martin Gaskell, D. Michael Crenshaw, Daniel Proga, Danielle Alloin, Dean C. Hines, Demosthenes Kazanas, Ehud Behar, Eleni Chatzichristou, Emmanuel Galliano, Gabriela Canalizo, Gerald Cecil, Gerard A. Kriss, Jack Gabel, Jelle S. Kaastra, John Everett, Karen M. Leighly, Kenneth Chambers, Kirk T. Korista, Lutz Wisotzki, Marianne Vestergaard, Martijn de Kool, Mary Elizabeth Kaiser, Michael S. Brotherton, Nahum Arav, Patrick B. Hall, Patrick Ogle, Rajib Ganguly, Ran Sivron, Randal Telfer, Richard F. Green, Sara R. Heap, Smita Mathur, Stephanie Snedden, Sulentic J. W., Thomas L. Aldcroft, Vesa T. Junkkarinen   +38 more
core   +4 more sources

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, Volume 62, Issue 8, Page 1902-1922, October 2025.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source