output
19922026
Showing 2011 · astro-ph.IMShow all

9 papers · 2 filters

astro-ph.IM2011★ 22 cited

A new method for calculating the convergent point of a moving group

P. A. B. Galli, R. Teixeira, C. Ducourant +2

Context: Convergent point (CP) search methods are important tools for studying the kinematic properties of open clusters and young associations whose members share the same spatial…

astro-ph.IM2011★ 49 cited

Higher-precision radial velocity measurements with the SOPHIE spectrograph using octagonal-section fibers

S. Perruchot, F. Bouchy, B. Chazelas +12

High-precision spectrographs play a key role in exoplanet searches using the radial velocity technique. But at the accuracy level of 1 m.s-1, required for super-Earth characterizat…

astro-ph.IM2011★ 5 cited

ARKCoS: Artifact-Suppressed Accelerated Radial Kernel Convolution on the Sphere

Franz Elsner, Benjamin D. Wandelt

We describe a hybrid Fourier/direct space convolution algorithm for compact radial (azimuthally symmetric) kernels on the sphere. For high resolution maps covering a large fraction…

astro-ph.IM2011★ 1.5k cited

The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III

III collaboration, Hiroaki Aihara, Carlos Allende Prieto +178

The Sloan Digital Sky Survey (SDSS) started a new phase in August 2008, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements…

astro-ph.IM2011★ 190 cited

Planck early results: first assessment of the High Frequency Instrument in-flight performance

Planck HFI Core Team, P. A. R. Ade, N. Aghanim +163

The Planck High Frequency Instrument (HFI) is designed to measure the temperature and polarization anisotropies of the Cosmic Microwave Background and galactic foregrounds in six w…

astro-ph.IM2011★ 88 cited

Planck Early Results. V. The Low Frequency Instrument data processing

A. Zacchei, D. Maino, C. Baccigalupi +146

We describe the processing of data from the Low Frequency Instrument (LFI) used in production of the Planck Early Release Compact Source Catalogue (ERCSC). In particular, we discus…

astro-ph.IM2011★ 143 cited

Planck Early Results. II. The thermal performance of Planck

Planck Collaboration, P. A. R. Ade, N. Aghanim +225

The performance of the Planck instruments in space is enabled by their low operating temperatures, 20K for LFI and 0.1K for HFI, achieved through a combination of passive radiative…

astro-ph.IM2011★ 525 cited

Planck Early Results: The Planck mission

Planck Collaboration, P. A. R. Ade, N. Aghanim +272

The European Space Agency's Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in li…

astro-ph.IM2011★ 2.2k cited

SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

Daniel J. Eisenstein, David H. Weinberg, Eric Agol +237

Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological…