Results 51 to 60 of about 448,852 (155)

BD–22°3467, a DAO-type star exciting the nebula Abell 35 [PDF]

, 2012
Context. Spectral analyses of hot, compact stars with non-local thermodynamical equilibrium (NLTE) model-atmosphere techniques allow the precise determination of photospheric parameters such as the effective temperature (Teff), the surface gravity (log g)
M. Ziegler, T. Rauch, K. Werner, J. Koeppen, J. W. I. F. Astronomy, Astrophysics, K. C. F. Astro, P. Physics, E. University, Tuebingen, H Germany, O. Strasbourg, U. Strasbourg, Strasbourg, France., Nasa Goddard Space Flight Center, Greenbelt, Md, Usa   +18 more
semanticscholar   +1 more source

Space Instrumentation: Imaging Interferometry [PDF]

, 1999
A short overview on aperture synthesis in space for the non ...
arxiv   +1 more source

Implementation of the trigger algorithm for the NEMO project [PDF]

, 2007
We describe the implementation of trigger algorithm specifically tailored on the characteristics of the neutrino telescope NEMO. Extensive testing against realistic simulations shows that, by making use of the uncorrelated nature of the noise produced ...
Brescia, M., d'Angelo, G., Riccio, G.
core   +1 more source

PAMELA Satellite Data as a Signal of Non-Thermal Wino LSP Dark Matter [PDF]

, 2009
Satellite data is accumulating that suggests and constrains dark matter physics. We argue there is a very well motivated theoretical preexisting framework consistent with dark matter annihilation being observed by the PAMELA satellite detector.
Abdo, Acharya, Acharya, Adriani, Adriani, Asai, Asaoka, Baltz, Bergstrom, Bergstrom, Chung, Clem, Cumberbatch, Diemand, Donato, Engelmann, Essig, Evans, Feng, Galli, Gherghetta, Giudice, Gleeson, Gondolo, Gondolo, Gordon Kane, Grajek, Grajek, Hooper, Ibe, Kamionkowski, Kane, Langacker, Lavalle, Lavalle, Maeno, Maurin, Moroi, Orito, Padmanabhan, Profumo, Ran Lu, Randall, Scott Watson, Slatyer, Strigari, Strigari, Strong, Zhang   +48 more
core   +3 more sources

Statistical analysis of the trigger algorithm for the NEMO project [PDF]

, 2007
We discuss the performances of a trigger implemented for the planned neutrino telescope NEMO. This trigger seems capable to discriminate between the signal and the strong background introduced by atmospheric muons and by the beta decay of the K-40 nuclei
Brescia, M., D'Angelo, G., Riccio, G.
core   +1 more source

Stellar laboratories: new Ge V and Ge VI oscillator strengths and their validation in the hot white dwarf RE 0503–289 [PDF]

, 2012
Context. State-of-the-art spectral analysis of hot stars by means of non-LTE model-atmosphere techniques has arrived at a high level of sophistication. The analysis of high-resolution and high-S/N spectra, however, is strongly restricted by the lack of ...
T. Rauch, K. Werner, É. Biémont, P. Quinet, J. W. I. F. Astronomy, Astrophysics, K. C. F. Astro, P. Physics, E. University, Tuebingen, H Germany, Astrophysique et Spectroscopie, Universit'e de Mons, Mons, Belgium, Ipnas, U. Liege, Sart Tilman, Liège, Nasa Goddard Space Flight Center, Greenbelt, Md, Usa   +22 more
semanticscholar   +1 more source

Missing Thermal Energy of the Intracluster Medium

, 2007
The Sunyaev-Zel'dovich (SZ) effect is a direct probe of thermal energy content of the Universe, induced in the cosmic microwave background (CMB) sky through scattering of CMB photons off hot electrons in the intracluster medium (ICM). We report a 9-sigma
Afshordi, Niayesh, Lin, Yen-Ting, Nagai, Daisuke, Sanderson, Alastair J. R.   +3 more
core   +2 more sources

Internal kinematics of modelled interacting disc galaxies [PDF]

, 2006
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany-/-Abstract. We present an investigation of galaxy-galaxy interactions and their effects on the velocity fields of discgalaxies in combined N-body/hydrodynamic simulations,
T. Kronberger, W. Kapferer, S. Schindler, A. Boehm, E. Kutdemir, B. L. Z. I. F. Astro-, Particlephysics, Innsbruck, Austria, Institute for Computational Astrophysics, Goettingen, H Germany, A. Potsdam, Potsdam   +13 more
semanticscholar   +1 more source

Frontiers of Astrophysics - Workshop Summary

, 1997
We summarize recent results presented in the astrophysics session during a conference on ``Frontiers of Contemporary Physics''. We will discuss three main fields (High-Energy Astrophysics, Relativistic Astrophysics, and Cosmology), where Astrophysicists ...
Biermann, Peter L., Falcke, Heino
core   +2 more sources

Constraining the neutron star equation of state using Pulse Profile Modeling [PDF]

, 2019
One very promising technique for measuring the dense matter Equation of State exploits hotspots that form on the neutron star surface due to the pulsar mechanism, accretion streams, or during thermonuclear explosions in the neutron star ocean.
Watts, Anna L.
core   +3 more sources