Results 51 to 60 of about 178,075 (291)

Unveiling the Structure and Dynamics of Red Giants With Asteroseismology

Frontiers in Astronomy and Space Sciences, 2020
The Kepler mission observed many thousands of red giants. The long time series, some as long as the mission itself, have allowed us to study red giants with unprecedented detail. Given that red giants are intrinsically luminous, and hence can be observed
Sarbani Basu, Saskia Hekker, Saskia Hekker   +2 more
doaj   +1 more source

Stellar coronal astronomy - a review

, 2003
Space Science Reviews, in press, 132 pages (full paper available at ftp://astro.esa.int/pub/ffavata/Papers/ssr-preprint.pdf)
Favata, Fabio, Micela, Giuseppina
openaire   +2 more sources

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Chemical enrichment and star formation in the Milky Way disk III. Chemodynamical constraints

, 2004
In this paper, we investigate some chemokinematical properties of the Milky Way disk, by using a sample composed by 424 late-type dwarfs. We show that the velocity dispersion of a stellar group correlates with the age of this group, according to a law ...
Asiain, Avila-Reese, Barbier-Brossat, Bassino, Berczik, Berczik, Bizyaev, Burkert, Byl, Byl, C. Flynn, Carlberg, Carlberg, Carlberg, Chiba, Cubarsí, Dehnen, Dehnen, Dehnen, Dempster, Duflot, Duflot, Edvardsson, Eggen, Elmegreen, Feast, Fehrenbach, Fehrenbach, Flynn, Font, Fridman, Friedli, Fujimoto, Fux, G. Hensler, Gerssen, Gerssen, Gilmore, Gratton, Gómez, H. J. Rocha-Pinto, Hartmann, Hilton, House, Hänninen, Ibata, J. Hänninen, J. Scalo, Jahreiß, Jeffries, Jenkins, Jenkins, Johnson, Kato, Knude, Kokubo, Kroupa, Köppen, Köppen, Lacey, Lacey, Larson, Larson, Mac Low, Maciel, Majewski, Mayor, Mayor, Mayor, Meusinger, Moreno, Mühlbauer, Nemec, Newberg, Nordström, Nordström, Núñez, Oblak, Ojha, Ostriker, Raiteri, Ratnatunga, Robin, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Roman, Roman, Samland, Scalo, Sellwood, Semenzato, Shapiro, Skuljan, Soderblom, Sotnikova, Spitzer, Spitzer, Steinmetz, Steinmetz, Taylor, Tinsley, Velázquez, Villumsen, W. J. Maciel, Wielen, Wielen, Yanny, Yasutomi, Yasutomi, Yuan   +112 more
core   +1 more source

Gamma-rays from the compact colliding wind region in Cyg OB2 #5 [PDF]

, 2012
In this contribution we model the non-thermal emission (from radio to gamma-rays) produced in the compact (and recently detected) colliding wind region in the multiple stellar system Cyg OB2 #5.
Araudo, Anabella T., Ortiz-Leon, Gisela, Rodriguez, Luis F.   +2 more
core   +2 more sources

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Variable stars around selected open clusters in the VVV area: Young Stellar Objects

EPJ Web of Conferences, 2017
Time-varying phenomena are one of the most substantial sources of astrophysical information, and led to many fundamental discoveries in modern astronomy.
Medina Nicolas, Borissova Jura, Bayo Amelia, Kurtev Radostin, Lucas Philip   +4 more
doaj   +1 more source

Nucleosynthesis in Type Ia Supernovae, Classical Novae, and Type I X-Ray Bursts. A Primer on Stellar Explosions [PDF]

EPJ Web of Conferences
Nuclear astrophysics aims at unraveling the cosmic origins of chemical elements and the physical processes powering stars. It constitutes a truly multidisciplinary field, that integrates tools, advancements, and accomplishments from theoretical ...
José Jordi
doaj   +1 more source

Stellar astronomy of the Bronze Age sanctuaries in North Khakassia [PDF]

Archaeoastronomy and Ancient Technologies, 2015
This publication presents the results of two studies of astroarchaeological monuments in North Khakassia confirming the existence of Siberia stellar astronomy in the Bronze age (andronovo culture, Khakassia, mid-II millennium BC).
Larichev, V.E., Gienko, E.G., Parshikov, S.A.   +2 more
doaj   +1 more source

Nonlinear Analysis of Irregular Variables

, 2000
The Fourier spectral techniques that are common in Astronomy for analyzing periodic or multi-periodic light-curves lose their usefulness when they are applied to unsteady light-curves.
AS Weigend, C Letellier, C Letellier, D Gabor, E Ott, HDI Abarbanel, HI Choi, J Wigner, J. R. Buchler, JMT Thompson, JR Buchler, JR Buchler, JR Buchler, L Cohen, L Cohen, L Cohen, T Sauer, T Serre, T Serre, T Serre, Z Kollâth, Z Kollâth, Z. Kollâth   +22 more
core   +1 more source