Results 81 to 90 of about 2,651 (210)

Signature of Saturn's auroral cusp: Simultaneous Hubble Space Telescope FUV observations and upstream solar wind monitoring [PDF]

, 2005
peer reviewedModel simulations by Bunce et al. (2005a) have shown that direct precipitation of electrons in Saturn's dayside cusp regions is not capable of producing significant FUV aurora.
Cowley, Stanley W.H., Badman, Sarah V, Cowley, Stanley W. H., Bunce, Emma J., Grodent, Denis, Bunce, Emma J, Gérard, Jean-Claude, Clarke, John T., Clarke, John T, Badman, Sarah V.   +9 more
core   +1 more source

A statistical analysis of the location and width of Saturn's southern auroras [PDF]

, 2006
peer reviewedA selection of twenty-two Hubble Space Telescope images of Saturn's ultraviolet auroras obtained during 1997-2004 has been analysed to determine the median location and width of the auroral oval, and their variability.
Badman, S. V., S. W. H. Cowley, D Grodent (7628801), Grodent, Denis, S. V. Badman, SWH Cowley (7628795), J-C Gerard (7628798), Gérard, J.-c., Grodent, D., D. Grodent, SV Badman (7628792), Cowley, S. W. H., Gérard, Jean-Claude, J.-C. Gérard   +13 more
core   +1 more source

Laboratory Spectral Characterization of Ribbeck Aubrite: Meteorite Sample of Earth-impacting Near-Earth Asteroid 2024 BX1

The Planetary Science Journal
Characterization of near-Earth objects (NEOs) is critical for Earth-impact hazard assessment. Particularly crucial to our physical understanding of NEOs are laboratory spectral measurements of meteorites as they are the best and most widely available ...
David C. Cantillo, Kaycee I. Ridenhour, Adam Battle, Thomas Joyce, Juliana Nunez Breceda, Neil Pearson, Vishnu Reddy   +6 more
doaj   +1 more source

Probing the fluctuating ultraviolet background using the Hubble Frontier Fields [PDF]

, 2019
In recent years, the rise in the number of Lyman Break Galaxies detected at high redshifts z ≥ 6 has opened up the possibility of understanding early galaxy formation physics in great detail.
Dayal, Pratika, Choudhury, Tirthankar Roy   +1 more
core   +1 more source

The shocking transit of WASP-12b : modelling the observed early ingress in the near ultraviolet [PDF]

, 2011
4 pages, 2 figuresNear ultraviolet observations of WASP-12b have revealed an early ingress compared to the optical transit lightcurve. This has been interpreted as due to the presence of a magnetospheric bow shock which forms when the relative velocity ...
Helling, Ch., Jardine, Moira Mary, L. Fossati, Jardine, M., M. Jardine, A. A. Vidotto, Haswell, C. A., Vidotto, A. A., J. Llama, Wood, Kenny, Ch. Helling, Llama, Joe, Fossati, L., K. Wood, Llama, J., Helling, Christiane, C. A. Haswell, Vidotto, Aline, Wood, K.   +18 more
core   +1 more source

Bioverse: Potentially Observable Exoplanet Biosignature Patterns under the UV Threshold Hypothesis for the Origin of Life

The Astrophysical Journal
A wide variety of scenarios for the origin of life have been proposed, with many influencing the prevalence and distribution of biosignatures across exoplanet populations.
Martin Schlecker, Dániel Apai, Antonin Affholder, Sukrit Ranjan, Régis Ferrière, Kevin K. Hardegree-Ullman, Tim Lichtenberg, Stéphane Mazevet   +7 more
doaj   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

Comprehensive Observations Of The Bright And Energetic Type Lax Sn 2012Z: Interpretation As A Chandrasekhar Mass White Dwarf Explosion [PDF]

, 2014
We present ultraviolet through near-infrared (NIR) broadband photometry, and visual-wavelength and NIR spectroscopy of the Type lax supernova (SN) 2012Z.
Baron, E., Jha, S. W., G. H. Marion, N. Morrell, Valenti, S., Stritzinger, M. D., F. Foerster, Forster, F., C. R. Burns, C. McCully, Contreras, C., Foerster, F., V. Pandya, Holmbo, S., S. Holmbo, P. Hoeflich, S. W. Jha, Pandya, V., M. M. Phillips, Campillay, A., Simon, J. D., Benetti, S., Burns, C. R., M. D. Stritzinger, S. Valenti, G. Pignata, P. J. Brown, Phillips, M. M., R. J. Foley, E. Baron, Taddia, F., E. Y. Hsiao, F. Taddia, C. Contreras, Foley, R. J., Francesco Taddia, S. Benetti, Hsiao, E. Y., McCully, C., F. Förster, Marion, G. H., Brown, P. J., Taddia, Francesco,, A. Campillay, Pignata, G., Hoeflich, P., J. D. Simon, BENETTI, Stefano, Morrell, N.   +48 more
core   +1 more source

Water Production Rates of the Interstellar Object 3I/ATLAS

The Astrophysical Journal Letters
We report the detection of water activity in the third confirmed interstellar object, 3I/ATLAS, based on ultraviolet imaging with the Neil Gehrels Swift Observatory’s Ultraviolet/Optical Telescope. Assuming a reddening of 29% between 3325.7 and 5437.8 Å,
Zexi Xing, Shawn Oset, John Noonan, Dennis Bodewits   +3 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source