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Extreme Ultraviolet Astronomy

Annual Review of Astronomy and Astrophysics, 2000
▪ Abstract  Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were dismissed during the early years of space astronomy as impossible, primarily because of the mistaken view that radiation in this band would be absorbed by the interstellar medium.
Stéphane Vennes
exaly   +3 more sources

Far and Extreme Ultraviolet Astronomy with ORFEUS [PDF]

Astrophysics and Space Science Library, 1990
AbstractORFEUS (Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer) is a 1 m normal incidence telescope for spectroscopic investigations of cosmic sources in the far and extreme ultraviolet spectral range. The instrument will be integrated into the freeflyer platform ASTRO-SPAS.
M Grewing, I Appenzeller, J Krautter
exaly   +2 more sources

Far-ultraviolet to Near-infrared Observations of SN 2023ixf: A High-energy Explosion Engulfed in Complex Circumstellar Material

The Astrophysical Journal Letters, 2023
We present early-phase panchromatic photometric and spectroscopic coverage spanning the far-ultraviolet to near-infrared regime of the nearest hydrogen-rich core-collapse supernova (SN) in the last 25 yr, SN 2023ixf.
Rishabh Singh Teja, Avinash Singh, Judhajeet Basu, G. C. Anupama, D. K. Sahu, Anirban Dutta, Vishwajeet Swain, Tatsuya Nakaoka, Utkarsh Pathak, Varun Bhalerao, Sudhanshu Barway, Harsh Kumar, Nayana A. J., Ryo Imazawa, Brajesh Kumar, Koji S. Kawabata   +15 more
doaj   +1 more source

Self-similar Outflows at the Source of the Fast Solar Wind: A Smoking Gun of Multiscale Impulsive Reconnection?

The Astrophysical Journal Letters, 2023
We present results of a quantitative analysis of structured plasma outflows above a polar coronal hole observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) spacecraft.
Vadim M. Uritsky, Judith T. Karpen, Nour E. Raouafi, Pankaj Kumar, C. Richard DeVore, Craig E. Deforest   +5 more
doaj   +1 more source

Reconstructing the XUV Spectra of Active Sun-like Stars Using Solar Scaling Relations with Magnetic Flux

The Astrophysical Journal, 2023
The Kepler space telescope and Transiting Exoplanet Survey Satellite unveiled that Sun-like stars frequently host exoplanets. These exoplanets are subject to fluxes of ionizing radiation in the form of X-ray and extreme-ultraviolet (EUV) radiation that ...
Kosuke Namekata, Shin Toriumi, Vladimir S. Airapetian, Munehito Shoda, Kyoko Watanabe, Yuta Notsu   +5 more
doaj   +1 more source

A Primordial Origin for the Gas-rich Debris Disks around Intermediate-mass Stars

The Astrophysical Journal Letters, 2023
While most debris disks consist of dust with little or no gas, a fraction have significant amounts of gas detected via emission lines of CO, ionized carbon, and/or atomic oxygen.
Riouhei Nakatani, Neal J. Turner, Yasuhiro Hasegawa, Gianni Cataldi, Yuri Aikawa, Sebastián Marino, Hiroshi Kobayashi   +6 more
doaj   +1 more source

X-Ray and Ultraviolet Emission of the Young Planet-hosting Star V1298 Tau from Coordinated Observations with XMM-Newton and Hubble Space Telescope

The Astrophysical Journal, 2023
Atmospheric mass loss plays a major role in the evolution of exoplanets. This process is driven by the stellar high-energy irradiation, especially in the first hundreds of millions of years after dissipation of the proto-planetary disk. A major source of
A. Maggio, I. Pillitteri, C. Argiroffi, S. Benatti, J. Sanz-Forcada, V. D’Orazi, K. Biazzo, F. Borsa, L. Cabona, R. Claudi, S. Desidera, D. Locci, D. Nardiello, L. Mancini, G. Micela, M. Rainer, R. Spinelli, A. Bignamini, M. Damasso   +18 more
doaj   +1 more source

Imprints from the solar cycle on the helium atom and helium pickup ion distributions [PDF]

Annales Geophysicae, 2003
Neutral interstellar helium atoms penetrate into the solar system almost unaffected by gas–plasma interactions in the heliospheric interface region, and thus can be considered as carriers of original information on the basic parameters (like ...
D. Rucinski, D. Rucinski, M. Bzowski, H. J. Fahr   +3 more
doaj   +1 more source

Halo-coronal mass ejections near the 23rd solar minimum: lift-off, inner heliosphere, and in situ (1 AU) signatures [PDF]

Annales Geophysicae, 2002
The extreme ultraviolet (EUV) signatures of a solar lift-off, decametric and kilometric radio burst emissions and energetic particle (EP) inner heliospheric signatures of an interplanetary shock, and in situ identification of its driver through ...
D. B. Berdichevsky, D. B. Berdichevsky, D. B. Berdichevsky, D. B. Berdichevsky, C. J. Farrugia, B. J. Thompson, R. P. Lepping, D. V. Reames, M. L. Kaiser, J. T. Steinberg, J. T. Steinberg, S. P. Plunkett, S. P. Plunkett, D. J. Michels   +13 more
doaj   +1 more source

A Giant Planet Undergoing Extreme-Ultraviolet Irradiation By Its Hot Massive-Star Host [PDF]

, 2017
The amount of ultraviolet irradiation and ablation experienced by a planet depends strongly on the temperature of its host star. Of the thousands of extrasolar planets now known, only six have been found that transit hot, A-type stars (with temperatures ...
Bayliss, D., Beatty, T. G., Bieryla, A., Bozza, V., Buchhave, L. A., Collins, K. A., Colón, K. D., Crepp, J. R., Curtis, I. A., DePoy, D. L., Dumont, M. T., D’Ago, G., Eastman, J. D., Ellis, T., Esquerdo, G. A., Fukui, A., Fulton, B. J., Gaillard, C., Gaudi, B. S., Gonzales, E. J., Gould, A., Gregorio, J., Howard, A. W., Ito, A., James, D. J., Jang-Condell, H., Jensen, Eric L.N., Johnson, M. C., Joner, M. D., Kasper, D. H., Kielkopf, J. F., Kuhn, R. B., Labadie-Bartz, J., Latham, D. W., Lund, M. B., Manner, M., Marshall, J. L., Matt, K., McLeod, K. K., Narita, N., Novati, S. C., Oberst, T. E., Penny, M., Pepper, J., Pogge, R. W., Reed, P. A., Relles, H., Rodriguez, J. E., Scarpetta, G., Siverd, R. J., Stassun, K. G., Stephens, D. C., Stevens, D. J., Stockdale, C., Tan, T. G., Trueblood, M., Trueblood, P., Yeigh, R. R., Zambelli, R., Zhou, G.   +59 more
core   +3 more sources