Results 31 to 40 of about 2,376 (130)

SDSS-III Baryon Oscillation Spectroscopic Survey data release 12 : galaxy target selection and large-scale structure catalogues

open access: yes, 2016
The Baryon Oscillation Spectroscopic Survey (BOSS), part of the Sloan Digital Sky Survey (SDSS) III project, has provided the largest survey of galaxy redshifts available to date, in terms of both the number of galaxy redshifts measured by a single ...
Oravetz, D.   +114 more
core   +1 more source

Echo tomography of Sco X-1 using Bowen fluorescence lines [PDF]

open access: yes, 2005
We present preliminary results of a simultaneous X‐ray/optical campaign of the proto‐typical LMXB Sco X‐1 at 1–10 Hz time resolution. Lightcurves of the high excitation Bowen/HeII emission lines were obtained through narrow interference filters with ...
Cornelisse, R.   +8 more
core   +1 more source

AMReX-Astro/Castro: Release 22.12

open access: yes, 2020
Castro (Compressible Astrophysics): An adaptive mesh, astrophysical compressible (radiation-, magneto-) hydrodynamics simulation code for massively parallel CPU and GPU ...
Katz, Maximilian   +10 more
core   +1 more source

Wiederherstellung chiraler Symmetrie und des Deconfinements in Neutronensternen

open access: yes, 2009
Neutron stars are very dense objects. One teaspoon of their material would have a mass of five billion tons. Their gravitational force is so strong that if an object were to fall from just one meter high it would hit the surface of the respective neutron
Dexheimer, Verônica Antocheviz
core  

Mathematics and explanation in astronomy and astrophysics [PDF]

open access: yes, 2007
The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics.
McCabe, Gordon, Gordon Mccabe
core  

Dust-enshrouded AGN: Implications for cosmological backgrounds [PDF]

open access: yes, 1999
The goal of this thesis is to develop an obscured AGN model for the X-ray background (XRB), and then to test the model via its predictions for the intensity of the cosmic background in the far infra-red, and by searching for obscured nuclei in individual
Gunn, Katherine Frances
core  

The SPIDER CMB Polarimeter [PDF]

open access: yes, 2012
SPIDER is a balloon-borne millimeter-wave telescope designed to study the polarization of the Cosmic Microwave Background (CMB). SPIDER will map 10% of the full sky with degree-scale beams to search for the distinctive inflationary gravitational wave ...
Trangsrud, Amy Ruth
core   +1 more source

Signals of the QCD Phase Transition in the Heavens

open access: yes, 2007
The modern phase diagram of strongly interacting matter reveals a rich structure at high-densities due to phase transitions related to the chiral symmetry of quantum chromodynamics (QCD) and the phenomenon of color superconductivity.
Schaffner-Bielich, Jürgen
core  

Geodesic Geometry of Black Holes

open access: yes, 2006
The study of geodesics is of intrinsic significance in the study of the geometry of space-time. In this thesis null, space-like and time-like geodesics are studied in the case of the space-times of Schwarzschild, Reissner-Nordstrouml;m and Kerr black ...
Slezakova, Gabriela
core  

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

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