Results 21 to 30 of about 2,509,689 (140)

Prospects of Gravitational-wave Follow-up through a Wide-field Ultraviolet Satellite: A Dorado Case Study

The Astrophysical Journal, 2023
The detection of gravitational waves from the binary neuron star merger GW170817 and electromagnetic counterparts GRB170817A and AT2017gfo kick-started the field of gravitational-wave multimessenger astronomy. The optically red to near-infrared emission (
Bas Dorsman, Geert Raaijmakers, S. Bradley Cenko, Samaya Nissanke, Leo P. Singer, Mansi M. Kasliwal, Anthony L. Piro, Eric C. Bellm, Dieter H. Hartmann, Kenta Hotokezaka, Kamilė Lukošiūtė   +10 more
doaj   +1 more source

CUTE Reveals Escaping Metals in the Upper Atmosphere of the Ultrahot Jupiter WASP-189b

The Astrophysical Journal Letters, 2023
Ultraviolet observations of ultrahot Jupiters, exoplanets with temperatures over 2000 K, provide us with an opportunity to investigate if and how atmospheric escape shapes their upper atmosphere. Near-ultraviolet transit spectroscopy offers a unique tool
A. G. Sreejith, Kevin France, Luca Fossati, Tommi T. Koskinen, Arika Egan, P. Wilson Cauley, Patricio. E. Cubillos, S. Ambily, Chenliang Huang, Panayotis Lavvas, Brian T. Fleming, Jean-Michel Desert, Nicholas Nell, Pascal Petit, Aline Vidotto   +14 more
doaj   +1 more source

Core-collapse Supernova Explosions in Active Galactic Nucleus Accretion Disks

The Astrophysical Journal, 2023
Astrophysical events that occur in active galactic nucleus (AGN) disks are believed to differ significantly from the ordinary in the interstellar medium.
Fu-Lin Li, Yu Liu, Xiao Fan, Mao-Kai Hu, Xuan Yang, Jin-Jun Geng, Xue-Feng Wu   +6 more
doaj   +1 more source

New spectral functions of the near-ground albedo derived from aircraft diffraction spectrometer observations [PDF]

, 2014
The airborne spectral observations of the upward and downward irradiances are revisited to investigate the dependence of the near-ground albedo as a function of wavelength in the entire solar spectrum for different surfaces (sand, water, snow) and under ...
C. A. Varotsos, C. Tzanis, Varotsos, C. A., Vasilyev, A. V., I. N. Melnikova, Cracknell, A. P., Melnikova, I. N., Tzanis, C., A. V. Vasilyev, A. P. Cracknell   +9 more
core   +2 more sources

Open skies: the National Radio Astronomy Observatory and its impact on US radio astronomy [PDF]

, 2020
This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved.
Kellermann, Kenneth I., Bouton, Ellen N., Bouton, Ellen N, Kellermann, Kenneth I, Brandt, Sierra S, Brandt, Sierra S.   +5 more
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The On-orbit Performance of the Colorado Ultraviolet Transit Experiment Mission

The Astronomical Journal, 2023
We present the on-orbit performance of the Colorado Ultraviolet Transit Experiment (CUTE). CUTE is a 6U CubeSat that launched on 2021 September 27 and is obtaining near-ultraviolet (NUV; 2480 Å-3306 Å) transit spectroscopy of short-period exoplanets. The
Arika Egan, Nicholas Nell, Ambily Suresh, Kevin France, Brian Fleming, Aickara Gopinathan Sreejith, Julian Lambert, Nicholas DeCicco   +7 more
doaj   +1 more source

Scientific problems addressed by the Spektr-UV space project (world space Observatory—Ultraviolet) [PDF]

, 2016
The article presents a review of scientific problems and methods of ultraviolet astronomy, focusing on perspective scientific problems (directions) whose solution requires UV space observatories.
Ayres, T., Kanev, E. N., Sachkov, M. E.,, Ayres, T.,, Sachkov, M. E., L. Fossati, Sichevskii, S. G., Piskunov, Nikolai,, Fossati, L.,, Bisikalo, D. V.,, Wiebe, D. Z., Shchekinov, Yu. A.,, Werner, K.,, Mashonkina, L. I.,, Yu. A. Shchekinov, J.-C. Gérard, Fossati, Luca, A. A. Boyarchuk, Kanev, E. N.,, A. G. Zhilkin, Boyarchuk, A. A., Kil'pio, E. Yu.,, Strassmeier, K. G., Ustamuich, S.,, Kaigorodov, P. V.,, Bisikalo, D. V., Zwintz, S. K., T. Ayres, Lamzin, S. A., Sichevskii, S. G.,, P. V. Kaigorodov, Voshchinnikov, N. V.,, K. G. Strassmeier, Lamzin, S. A.,, M. E. Sachkov, A. I. Gomez de Castro, Chugai, N. N.,, Jeffrey, S., Ustamuich, S., S. Ustamuich, P. B. Ivanov, Hubert, B.,, B. Hubert, Mashonkina, L. I., Zwintz, S. K.,, D. Z. Wiebe, Zhilkin, A. G., S. A. Lamzin, Savanov, I. S., N. V. Voshchinnikov, Gomez de Castro, A. I.,, L. I. Mashonkina, I. S. Savanov, S. G. Sichevskii, Kil'pio, E. Yu., K. Werner, Shustov, B. M.,, Ryabchikova, T. A.,, Chugai, N. N., Wiebe, D. Z.,, D. Shulyak, D. V. Bisikalo, S. K. Zwintz, T. A. Ryabchikova, Boyarchuk, A. A.,, Ryabchikova, Tanya, Gomez de Castro, Ana I., Shematovich, V. I.,, Ivanov, P. B.,, N. Piskunov, Gerard, J. -C, Shulyak, D., Hubert, B., Lammer, H.,, E. N. Kanev, Savanov, I. S.,, Strassmeier, K. G.,, Piskunov, Nikolai E., B. M. Shustov, V. I. Shematovich, H. Lammer, Shustov, B. M., Lammer, H., Shematovich, V. I., Zhilkin, A. G.,, Ivanov, P. B., E. Yu. Kil’pio, S. Jeffrey, Voshchinnikov, N. V., Kaigorodov, P. V., Shulyak, D.,, Gerard, J.-C., N. N. Chugai, Werner, Katharina, Shchekinov, Yu. A., Jeffrey, S.,   +95 more
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Estimating the contribution from different ionospheric regions to the TEC response to the solar flares using data from the international GPS network [PDF]

Annales Geophysicae, 2002
This paper proposes a new method for estimating the contribution from different ionospheric regions to the response of total electron content variations to the solar flare, based on data from the international network of two-frequency multichannel ...
L. A. Leonovich, L. A. Leonovich, E. L. Afraimovich, E. B. Romanova, A. V. Taschilin   +4 more
doaj   +1 more source

The 1948 solar eclipse and the genesis of radio astronomy in Victoria [PDF]

, 2004
In the early years of radio astronomy, solar eclipses played a critical role in establishing the sources of solar radio emission. During the half decade from 1945, Australia emerged as a leading nation in radio astronomy, with most of the observations ...
Orchiston, Wayne
core   +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