Hi-GAL, theHerschelinfrared Galactic Plane Survey: photometric maps and compact source catalogues
نویسندگان
چکیده
منابع مشابه
Hi-GAL, the Herschel infrared Galactic Plane Survey: photometric maps and compact source catalogues - First data release for the inner Milky Way: +68° ≥ l ≥ −70°
Aims. We present the first public release of high-quality data products (DR1) from Hi-GAL, the Herschel infrared Galactic Plane Survey. Hi-GAL is the keystone of a suite of continuum Galactic plane surveys from the near-IR to the radio and covers five wavebands at 70, 160, 250, 350 and 500 μm, encompassing the peak of the spectral energy distribution of cold dust for 8 <∼ T <∼ 50 K. This first ...
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We present a catalog of compact sources derived from the QUaD Galactic Plane Survey. The survey covers ∼800 deg2 of the inner galaxy (|b| < 4◦) in Stokes I, Q, and U parameters at 100 and 150 GHz, with angular resolutions of 5 and 3.5 arcmin, respectively. Five hundred and twenty-six unique sources are identified in I, of which 239 are spatially matched between frequency bands, with 53 (234) de...
متن کاملVariations of the spectral index of dust emissivity from Hi-GAL observations of the Galactic plane*
Context. Variations in the dust emissivity are critical for gas mass determinations derived from far-infrared observations, but also for separating dust foreground emission from the Cosmic Microwave Background (CMB). Hi-GAL observations allow us for the first time to study the dust emissivity variations in the inner regions of the Galactic plane at resolution below 1◦. Aims. We present maps of ...
متن کاملThe H2O southern Galactic Plane Survey (HOPS): NH3 (1,1) and (2,2) catalogues
The H2O Southern Galactic Plane Survey (HOPS) has mapped a 100degree strip of the Galactic plane (−70 > l > 30, |b| < 0.5) using the 22-m Mopra antenna at 12-mm wavelengths. Observations were conducted in on-the-fly mode using the Mopra spectrometer (MOPS), targeting water masers, thermal molecular emission and radio-recombination lines. Foremost among the thermal lines are the 23GHz transition...
متن کاملDetection and characterization of a 500 μm dust emissivity excess in the Galactic plane using Herschel/Hi-GAL observations⋆
Context. Past and recent observations have revealed unexpected variations in the far-infrared – millimeter (FIR-mm) dust emissivity in the interstellar medium. In the Herschel spectral range, those are often referred to as a 500 μm emission excess. Several dust emission models have been developed to interpret astrophysical data in the FIR-mm domain. However, these are commonly unable to fully r...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2016
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201526380