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Authors whose works are in public domain in at least one jurisdiction

List of works by George Helou

51-100 of 366 results

Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove

scientific article published in Astronomy and Astrophysics

The spectral distribution of normal star-forming galaxies: calibration at far-infrared and submillimeter wavelengths

scientific article

A Spitzer Unbiased Ultradeep Spectroscopic Survey

scientific article published in the Astrophysical Journal

Planck early results. XXIII. The first all-sky survey of Galactic cold clumps

scientific article published in Astronomy and Astrophysics in December 2011

Planck early results. XXII. The submillimetre properties of a sample of Galactic cold clumps

scientific article

The detection of anomalous dust emission in the nearby galaxy NGC 6946

scholarly article

Planck 2015 results. X. Diffuse component separation: Foreground maps

scientific article

Infrared Astronomical Satellite (IRAS), Catalogs and Atlases. Vol. 7. The Small Scale Structure Catalog

scientific article published in January 1988

Planck 2015 results. IX. Diffuse component separation: CMB maps

scientific article

An Ultraviolet‐to‐Radio Broadband Spectral Atlas of Nearby Galaxies

scientific article published in the Astrophysical Journal

The Infrared Luminosity Function of Galaxies at Redshifts z = 1 and z ∼ 2 in the GOODS Fields

scientific article published in the Astrophysical Journal

Calibrating extinction-free star formation rate diagnostics with 33 GHz free-free emission in NGC 6946

scientific article published in the Astrophysical Journal

Planck 2015 results. XIX. Constraints on primordial magnetic fields

scholarly article

Planck intermediate results XVII. Emission of dust in the diffuse interstellar medium from the far-infrared to microwave frequencies

scientific article published in Astronomy and Astrophysics

Planck 2015 results. XIV. Dark energy and modified gravity

scientific article

Planck intermediate results. XIX. An overview of the polarized thermal emission from Galactic dust

scientific article published in Astronomy and Astrophysics

Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds

scientific article

Planck 2015 results. XVII. Constraints on primordial non-Gaussianity

scholarly article

HST NICMOS imaging of z ~ 2, 24 {mu}m-selected ultraluminous infrared galaxies

scientific article published in January 2008

Illuminating gravitational waves: A concordant picture of photons from a neutron star merger

scientific article published on 16 October 2017

Millimeter Observations of ObscuredSpitzer24 μm Sources

scientific article published in the Astrophysical Journal

Far-infrared spectroscopy of normal galaxies: physical conditions in the interstellar medium

scientific article published in January 2001

Modeling dust and starlight in galaxies observed by Spitzer and Herschel: NGC 628 and NGC 6946

scientific article published in the Astrophysical Journal

Planck intermediate results XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes

scientific article

Warm Molecular Hydrogen in the Spitzer SINGS Galaxy Sample

scientific article published in the Astrophysical Journal

The infrared spectral energy distribution of normal star-forming galaxies

scientific article published in January 2001

TheSpitzerSurvey of Stellar Structure in Galaxies

scholarly article

Planck 2015 results. XXIII. The thermal Sunyaev-Zeldovich effect-cosmic infrared background correlation

scientific article

Planck intermediate results XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth

scientific article

IRAS observations of galaxies in the Virgo cluster area

scientific article published in January 1988

Planck intermediate results. XX. Comparison of polarized thermal emission from Galactic dust with simulations of MHD turbulence

scientific article published in Astronomy and Astrophysics

Infrared Spectral Energy Distributions of Nearby Galaxies

scientific article published in the Astrophysical Journal

Revised sizes and positions for the Mailyan dwarf galaxy catalog

[C II] 158 μm EMISSION AS A STAR FORMATION TRACER

scientific article published in the Astrophysical Journal

Planck intermediate results. XXII. Frequency dependence of thermal emission from Galactic dust in intensity and polarization

scientific article published in Astronomy and Astrophysics

Deepu*‐ andg‐Band Imaging of theSpitzer Space TelescopeFirst Look Survey Field: Observations and Source Catalogs

scholarly article

SPIRITS: Uncovering Unusual Infrared Transients with Spitzer

scientific article published in the Astrophysical Journal

Spatially resolved dust emission of extremely metal-poor galaxies

scientific article

Infrared Space Observatory measurements of [C II] line variations in galaxies

article by Malhotra S. et al published 1997 in Letters of the Astrophysical Journal

Planck intermediate results IX. Detection of the Galactic haze with Planck

scholarly article

Spitzer 70 and 160 {mu}m observations of the COSMOS field

scientific article published in Astronomical Journal

Infrared Properties of Radio‐selected Submillimeter Galaxies in theSpitzerFirst Look Survey Verification Field

Planck intermediate results. XV. A study of anomalous microwave emission in Galactic clouds

scientific article published in Astronomy and Astrophysics

A 1.49 GHz atlas of the IRAS bright galaxy sample

scientific article published in January 1990

The mid-infrared spectra of normal galaxies

scientific article published in January 2000

Extended Mid-Infrared Aromatic Feature Emission in M82

scientific article published in the Astrophysical Journal

Obscured and Unobscured Active Galactic Nuclei in theSpitzer Space TelescopeFirst Look Survey

No evolution in the IR-radio relation for IR-luminous galaxies at z < 2 in the COSMOS field

scientific article

The Role of Galaxy Interactions and Mergers in Star Formation atz ≤ 1.3: Mid‐Infrared Properties in theSpitzerFirst Look Survey

scientific article published in the Astrophysical Journal

SPIRITS Discoveries of Recent Infrared Transients with Spitzer Early Release Data

scientific article published in January 2015