Results 11 to 20 of about 2,376 (130)

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering [PDF]

open access: yes, 2012
We analyse the anisotropic clustering of massive galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) sample, which consists of 264 283 galaxies in the redshift range 0.43 0.57, and when ...
Ross, Nicholas P.   +175 more
core   +1 more source

THE ASTRO-H MISSION [PDF]

open access: yes, 2021
A review of the Astro-H mission is presented here on behalf of the Astro-H collaboration. The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space and Astronautical Science (ISAS)
Mitsuda, Kazuhisa   +3 more
core   +3 more sources

Black Hole Mergers and Their Electromagnetic Counterparts [PDF]

open access: yes, 2011
Over the past ten years it has become increasingly clear that most, if not all, galaxies have super-massive black holes lurking in their cores. The implications for this are large as they not only have significant effects on the host galaxies, far beyond
Bode, Jason Nathaniel
core   +1 more source

The helium-rich cataclysmic variable SBSS 1108+574 [PDF]

open access: yes, 2013
We present time-resolved spectroscopy and photometry of the dwarf nova SBSS 1108+574, obtained during the 2012 outburst. Its quiescent spectrum is unusually rich in helium, showing broad, double-peaked emission lines from the accretion disc. We measure a
Koff, R.A.   +36 more
core   +1 more source

The Dynamics of White Dwarfs, Black Holes and Stellar Cusps [PDF]

open access: yes, 2013
This thesis contains topics related mostly to the dynamics of white dwarfs (chapter 2), the dynamics of stars around binary super massive black holes (chapters 4, 5 and 6) and dynamics in the singular isothermal sphere (chapter 7).
Wegg, Christopher
core   +1 more source

Simulations of X-ray bursts and superbursts [PDF]

open access: yes, 2015
Observations of neutron star in binary systems provide powerful constrains on the physics at the surface of neutron stars. During the accretion of matter from the companion star, periodic nuclear explosion are triggered in the outer layers of the neutron
Fehlmann, Sofie
core   +1 more source

Kirkpatrick‐Baez (KB) and Lobster Eye (LE) Optics for Astronomical and Laboratory Applications

open access: yesX-Ray Optics and Instrumentation, Volume 2010, Issue 1, 2010., 2010
Most of grazing incidence (reflective) X‐ray imaging systems used in astronomy and in other (laboratory) applications are based on the Wolter 1 (or modified) arrangement. But there were proposed also other designs and configurations, which are considered for future applications for both in laboratory and (finitely) in space.
René Hudec, Stephen L. O′Dell
wiley   +1 more source

Three Lyα emitters at z~6 : early GMOS/Gemini data from the GLARE project [PDF]

open access: yes, 2004
We report spectroscopic detection of three z ∼ 6 Lyα-emitting galaxies, in the vicinity of the Hubble Ultra Deep Field, from the early data of the Gemini Lyman Alpha at Reionisation Era (GLARE) project.
Tsvetanov, Z   +54 more
core   +1 more source

X-ray emission from accreting black holes [PDF]

open access: yes, 2003
In this thesis I use state of the art models of x-ray emission from accreting black holes in order to observationally constrain the accretion geometry.
Madias, Fernando Eugenio Barrio
core  

The 2dF Galaxy Redshift Survey: galaxy luminosity functions per spectral type [PDF]

open access: yes, 2002
We calculate the optical b (J) luminosity function (LF) of the 2dF Galaxy Redshift Survey (2dFGRS) for different subsets defined by their spectral properties.
Taylor, K   +115 more
core   +1 more source

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