Results 31 to 40 of about 152,062 (293)

Magnetic configuration sweep control in heliac type stellarators [PDF]

Nuclear Fusion, 2014
A novel magnetic configuration sweep control system for the TJ-II Heliac device is described. The system is prepared to establish a reference for plasma, torus or vessel current while the coil configuration currents are swept during a single plasma discharge.
Romero, J. A., Pacios, L., de la Peña, A., Lapayese, F., Ascasíbar, E.   +4 more
openaire   +2 more sources

A New Wide-field Infrared Survey Explorer Calibration of Stellar Mass

The Astrophysical Journal, 2023
We derive new empirical scaling relations between Wide-field Infrared Survey Explorer (WISE) mid-IR (MIR) galaxy photometry and well-determined stellar masses from spectral energy distribution modeling of a suite of optical–infrared photometry provided ...
T. H. Jarrett, M. E. Cluver, Edward N. Taylor, Sabine Bellstedt, A. S. G. Robotham, H. F. M. Yao   +5 more
doaj   +1 more source

The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array

, 2008
Most exoplanets have been discovered via radial velocity studies, which are inherently insensitive to orbital inclination. Interferometric observations will show evidence of a stellar companion if it sufficiently bright, regardless of the inclination ...
Ellyn K. Baines, Habets G. M. H. J., Harold A. McAlister, Imbert M., Judit Sturmann, Laszlo Sturmann, Mitchell D. S., Nils H. Turner, Perryman M. A. C., Stephen T. Ridgway, Theo A. ten Brummelaar   +10 more
core   +1 more source

The Outer Stellar Populations and Environments of Unusually HI-rich Galaxies

, 2015
We investigate the nature of HI-rich galaxies from the ALFALFA and GASS surveys, which are defined as galaxies in the top 10th percentile in atomic gas fraction at a given stellar mass. We analyze outer (R>1.5 Re) stellar populations for a subset of face-
Kauffmann, Guinevere
core   +1 more source

Stellar halo constraints on simulated late-type galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
How do late-type spiral galaxies form within the context of a cold dark matter cosmology? We contrast N-body, smoothed particle hydrodynamical simulations of galaxy formation that employ two different supernova feedback mechanisms. Observed mass and metallicity distributions of the stellar haloes of the Milky Way and M31 provide constraints on these ...
Brook, Chris B., Kawata, Daisuke, Gibson, Brad K., Flynn, Chris   +3 more
openaire   +3 more sources

Multi-Periodic Oscillations in Cepheids and RR Lyrae-Type Stars

, 2012
Classical Cepheids and RR Lyrae-type stars are usually considered to be textbook examples of purely radial, strictly periodic pulsators. Not all the variables, however, conform to this simple picture.
A.R. Walker, A.R. Walker, B.L. Popielski, C. Mulet-Marquis, D.M. Szczygieł, E. Guggenberger, E. Poretti, E.J. Bernard, G. Burki, G. Clementini, G. Kovács, G. Kovács, G. Kovács, H. Shapley, H. Shibahashi, I. Dékány, I. Soszyński, I. Soszyński, I. Soszyński, I. Soszyński, I. Soszyński, I. Soszyński, J. Jurcsik, J.-B. Marquette, J.M. Benkő, J.M. Nemec, J.P. Beaulieu, J.R. Buchler, J.R. Buchler, K. Kinemuchi, M. Chadid, M. Jerzykiewicz, M.U. Feuchtinger, N.R. Simon, P. Cseresnjes, P. Moskalik, P. Moskalik, P. Moskalik, P. Moskalik, P. Moskalik, P. Th. Oosterhoff, P. Th. Oosterhoff, P. Wils, R. Smolec, R. Szabó, R.B. Stothers, R.M. Nowakowski, S. Blazhko, S. Reyner, T.M. Corwin, W. Dziembowski, Z. Kolláth, Z. Kolláth   +52 more
core   +1 more source

The emission by dust and stars of nearby galaxies in the Herschel KINGFISH survey [PDF]

, 2011
Using new far-infrared imaging from the Herschel Space Observatory with ancillary data from ultraviolet (UV) to submillimeter wavelengths, we estimate the total emission from dust and stars of 62 nearby galaxies in the KINGFISH survey in a way that is as
Appleton, Philip, Armus, Lee, Bolatto, Alberto, Brandl, Bernhard, Calzetti, Daniela, Crocker, Alison, Croxall, Kevin, Dale, Daniel, Engelbracht, Charles W, Galametz, Maud, Gordon, Karl D, Groves, Brent, Hinz, Joannah, Hunt, Leslie, Johnson, Benjamin D, Kennicutt, Robert C, Koda, Jin, Krause, Oliver, Montiel, Edward, Murphy, Eric, Rix, Hans-Walter, Roussel, Helene, Sandstrom, Karin, Sauvage, Marc, Schinnerer, Eva, Skibba, Ramin A, Smith, JD, van der Wel, Sharon Meidt, Walter, Fabian, Wilson, Christine D, Wolfire, Mark, Zibetti, Stefano   +31 more
core   +5 more sources

StellarGAN: Classifying Stellar Spectra with Generative Adversarial Networks in SDSS and APOGEE Sky Surveys

The Astrophysical Journal Supplement Series
Extracting precise stellar labels is crucial for large spectroscopic surveys like the Sloan Digital Sky Survey (SDSS) and APOGEE. In this paper, we report the newest implementation of StellarGAN, a data-driven method based on generative adversarial ...
Wei Liu, Shuo Cao, Xian-Chuan Yu, Meng Zhu, Marek Biesiada, Jiawen Yao, Minghao Du   +6 more
doaj   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Correlating Intrinsic Stellar Parameters with Mg ii Self-reversal Depths

The Astrophysical Journal
The Mg ii h&k emission lines (2803, 2796 Å) are a useful tool for understanding stellar chromospheres and transition regions due to their intrinsic brightness, relatively low interstellar medium (ISM) absorption interference, and abundance
Anna Taylor, Audrey Dunn, Sarah Peacock, Allison Youngblood, Seth Redfield   +4 more
doaj   +1 more source