Results 31 to 40 of about 63,242 (201)

GHRS and ORFEUS-II Observations of the Highly Ionized Interstellar Medium Toward ESO141-055 [PDF]

, 1999
We present Goddard High Resolution Spectrograph and ORFEUS-II measurements of Si IV, CIV, N V, and O VI absorption in the interstellar medium of the Galactic disk and halo toward the nucleus of the Seyfert galaxy ESO141-055.
Berkhuijsen E., Blair D. Savage, Cleary M.,N., Colomb F. R., de Boer K. S., Dufton P. L., Kenneth R. Sembach, Mark Hurwitz, Richter P., Savage B. D., Widmann H.   +10 more
core   +2 more sources

FAST Discovery of a Fast Neutral Hydrogen Outflow

The Astrophysical Journal Letters, 2023
In this letter, we report the discovery of a fast neutral hydrogen outflow in SDSS J145239.38+062738.0, a merging radio galaxy containing an optical type I active galactic nucleus (AGN).
Renzhi Su, Minfeng Gu, S. J. Curran, Elizabeth K. Mahony, Ningyu Tang, James R. Allison, Di Li, Ming Zhu, J. N. H. S. Aditya, Hyein Yoon, Zheng Zheng, Zhongzu Wu   +11 more
doaj   +1 more source

Variations of Interstellar Ultra-Violet Absorption [PDF]

Symposium - International Astronomical Union, 1973
It is shown that mixtures of graphite core-ice mantle grains with large and small mean size and graphite grains provide good fits to the observed interstellar extinction curve.
openaire   +1 more source

Interstellar Absorption of Some Be Stars [PDF]

International Astronomical Union Colloquium, 1987
It is well known that the intrinsic colors of Be stars are not the same as those of “normal” B stars and they are often redder. So interstellar absorption of Be stars determined from photometric indices may be overestimated. In order to avoid this, a method often used to determine the interstellar absorption of Be stars is based on the ultraviolet ...
D. Briot, J. Zorec
openaire   +1 more source

How to Imagine Educational AI: The Filling of a Pail or the Lighting of a Fire?

Educational Theory, EarlyView.
Abstract Recent advances in artificial intelligence (e.g., machine learning, generative AI) have led to increased interest in its application in educational settings. AI companies hope to revolutionize teaching and learning by tailoring material to the individual needs of students, automating parts of teachers' jobs, or analyzing educational data to ...
Michał Wieczorek, Alberto Romele
wiley   +1 more source

The Impact of Accurate Extinction Measurements for X-ray Spectral Models

, 2015
Interstellar extinction includes both absorption and scattering of photons from interstellar gas and dust grains, and it has the effect of altering a source's spectrum and its total observed intensity.
Corrales, Lia, Smith, Randall K., Valencic, Lynne A.   +2 more
core   +1 more source

Herschel/HIFI observations of interstellar OH+ and H2O+ towards W49N: a probe of diffuse clouds with a small molecular fraction [PDF]

, 2010
We report the detection of absorption by interstellar hydroxyl cations and water cations, along the sight-line to the bright continuum source W49N.
A. Coutens, A. Cros, A. G. G. M. Tielens, A. Lorenzani, B. Godard, B. Mookerjea, Brogan, C. Gry, C. Joblin, C. Persson, C. Vastel, D. A. Neufeld, D. C. Lis, D. Teyssier, de Graauw, E. Dartois, E. Falgarone, E. Herbst, F. Boulanger, Fish, Gerin, Godard, Goicoechea, Gwinn, H. Gupta, Indriolo, J. Cernicharo, J. H. Black, J. Krełowski, J. Martín-Pintado, J. Pearson, J. R. Goicoechea, J. Stutzki, J. Zmuidzinas, K. Klein, K. M. Menten, Kre▯owski, L. A. Samoska, Le Petit, Le Petit, Liszt, M. De Luca, M. Gerin, M. Kazmierczak, M. Perault, M. Salez, M. Schmidt, Mürtz, Ossenkopf, P. Encrenaz, P. F. Goldsmith, P. Hennebelle, P. Hily-Blant, P. Rimmer, P. Sonnentrucker, Pilbratt, Plume, R. Kołos, R. Monje, R. Plume, R. Shipman, R. Szczerba, S. Philipp, S. Schlemmer, S. Yu, Sonnentrucker, Strahan, T. A. Bell, T. G. Phillips, T. Giesen, T. R. Geballe, Van der Werf, van Dishoeck, Vastel, Wehinger, Wyrowski   +75 more
core   +2 more sources

Small-scale structure in the interstellar medium: time-varying interstellar absorption towards κ Velorum [PDF]

Monthly Notices of the Royal Astronomical Society, 2012
17 pages, 11 figures, 4 tables.
Smith, Keith T., Fossey, Stephen J., Cordiner, Martin A., Sarre, Peter J., Smith, Arfon M., Bell, Tom A., Viti, Serena   +6 more
openaire   +3 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Aromatic Hydrocarbons, Diamonds, and Fullerenes in Interstellar Space: Puzzles to be Solved by Laboratory and Theoretical Astrochemistry [PDF]

, 2000
New research is presented, and previous research is reviewed, on the emission and absorption of interstellar aromatic hydrocarbons. Emission from aromatic hydrocarbons dominate the mid-infrared emission of many galaxies, including our own Milky Way ...
Allamandola, Allamandola, Allamandola, Allamandola, Anders, Andriesse, Bakes, Bakes, Becker, Beintema, Bettens, Blanco, Borghesi, Boulanger, Brooke, Brooke, Cesarsky, Cesarsky, Chiar, Chiar, Cohen, Cohen, Cohen, Cook, Dartois, de Frees, Draine, Duley, Duley, Foing, Foing, Fulara, Gillett, Goeres, Graham, Harvey, Herbig, Heymann, Hudgins, Hudgins, Joblin, K. Sellgren, Kroto, Kroto, Langhoff, Lewis, Léger, Mattila, Merrill, Moutou, Onaka, Oudmaijer, Papoular, Pauzat, Pauzat, Pendleton, Platt, Puget, Puget, Roche, Roche, Russell, Sakata, Sakata, Salama, Salama, Schutte, Schutte, Scott, Sellgren, Sellgren, Sellgren, Sellgren, Sellgren, Sellgren, Sellgren, Sellgren, Snow, Somerville, Szczepanski, Uchida, Uchida, Whitcomb   +82 more
core   +2 more sources