output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2011 · astro-ph.GAShow all

15 papers · 2 filters

astro-ph.GA2011★ 26 cited

Comparison of the Diffuse Halpha and FUV Continuum Backgrounds: On the Origins of the Diffuse Halpha Background

Kwang-Il Seon, Adolf Witt, Il-Joong Kim +4

We compare the diffuse H map of our Galaxy with the FUV (1370-1710Å) continuum map. The H intensity correlates well with the FUV intensity. The H/FUV intensity ratio incre…

astro-ph.GA2011★ 88 cited

A High Resolution Study of the HI-H2 Transition across the Perseus Molecular Cloud

Min-Young Lee, Snezana Stanimirovic, Kevin A. Douglas +12

To investigate the fundamental principles of H2 formation in a giant molecular cloud (GMC), we derive the HI and H2 surface density (Sigma_HI and Sigma_H2) images of the Perseus mo…

astro-ph.GA2011

Implications of the SPEAR FUV Maps on Our Understanding of the ISM

Eric J. Korpela, Martin Sirk, Jerry Edelstein +3

The distribution of a low-density transition temperature (10^4.5 - 10^5.5 K) gas in the interstellar medium conveys the character and evolution of diffuse matter in the Galaxy. Thi…

astro-ph.GA2011★ 32 cited

High ions towards white dwarfs: circumstellar line shifts and stellar temperature

R. Lallement, B. Y. Welsh, M. A. Barstow +1

Based on a compilation of OVI, CIV, SiIV and NV data from IUE, FUSE, GHRS, STIS, and COS, we derive an anti- correlation between the stellar temperature and the high ion velocity s…

astro-ph.GA2011★ 31 cited

Arecibo PALFA Survey and Einstein@Home: Binary Pulsar Discovery by Volunteer Computing

B. Knispel, P. Lazarus, B. Allen +35

We report the discovery of the 20.7 ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo tele…

astro-ph.GA2011★ 49 cited

GALEX observations of quasar variability in the ultraviolet

Barry Y. Welsh, Jonathan M. Wheatley, James D. Neill

Using archival observations recorded over a 5+ year timeframe with the NASA Galaxy Evolution Explorer (GALEX) satellite, we present a study of the ultraviolet (UV) variability of 4…

astro-ph.GA2011★ 201 cited

Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey

Planck Collaboration, P. A. R. Ade, N. Aghanim +202

We present the statistical properties of the first version of the Cold Core Catalogue of Planck Objects (C3PO), in terms of their spatial distribution, temperature, distance, mass,…

astro-ph.GA2011★ 114 cited

Planck Early Results: The submillimetre properties of a sample of Galactic cold clumps

Planck Collaboration, P. A. R. Ade, N. Aghanim +201

(abridged) We perform a detailed investigation of sources from the Cold Cores Catalogue of Planck Objects (C3PO). Our goal is to probe the reliability of the detections, validate t…

astro-ph.GA2011★ 453 cited

Planck Early Results: All sky temperature and dust optical depth from Planck and IRAS: Constraints on the "dark gas" in our galaxy

Planck Collaboration, P. A. R. Ade, N. Aghanim +204

We construct an all-sky map of the apparent temperature and optical depth of thermal dust emission using the Planck-HFI and IRAS data. The optical depth maps are correlated to trac…

astro-ph.GA2011★ 216 cited

The GALFA-HI Survey: Data Release 1

J. E. G. Peek, Carl Heiles, Kevin A. Douglas +10

We present the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) survey, and its first full data release (DR1). GALFA-HI is a high resolution (~ 4'), large area (13000 deg^2), high…

astro-ph.GA2011★ 117 cited

Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources

Planck Collaboration, J. Aatrokoski, P. A. R. Ade +246

Spectral energy distributions (SEDs) and radio continuum spectra are presented for a northern sample of 104 extragalactic radio sources, based on the Planck Early Release Compact S…

astro-ph.GA2011★ 239 cited

Planck Early Results: Thermal dust in Nearby Molecular Clouds

Planck Collaboration, A. Abergel, P. A. R. Ade +197

Planck allows unbiased mapping of Galactic sub-millimetre and millimetre emission from the most diffuse regions to the densest parts of molecular clouds. We present an early analys…

astro-ph.GA2011★ 217 cited

Planck Early Results XXIV: Dust in the diffuse interstellar medium and the Galactic halo

Planck Collaboration, A. Abergel, P. A. R. Ade +205

This paper presents the first results of comparison of Planck along with IRAS data with Green Bank Telescope 21-cm observations in 14 fields covering more than 800 square degrees a…

astro-ph.GA2011★ 148 cited

Planck early results. XXI. Properties of the interstellar medium in the Galactic plane

Planck Collaboration, A. Abergel, P. A. R. Ade +199

(abridged) Planck has observed the entire sky from 30 GHz to 857GHz. The observed foreground emission contains contributions from different phases of the interstellar medium (ISM).…

astro-ph.GA2011★ 200 cited

Planck early results. XX. New light on anomalous microwave emission from spinning dust grains

Planck Collaboration, P. A. R. Ade, N. Aghanim +213

Anomalous microwave emission (AME) has been observed by numerous experiments in the frequency range ~10-60 GHz. Using Planck maps and multi-frequency ancillary data, we have constr…