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Related papers: Statistical Prediction of [CII] Observations by Co…

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Interstellar dust is a key element in our understanding of the interstellar medium and star formation. The manner in which dust populations evolve with the excitation and the physical conditions is a first step in the comprehension of the…

We present a coherent database of spectroscopic observations of far-IR fine-structure lines from the Herschel/PACS archive for a sample of 170 local AGN, plus a comparison sample of 20 starburst galaxies and 43 dwarf galaxies. Published…

Astrophysics of Galaxies · Physics 2016-10-19 J. A. Fernández-Ontiveros , L. Spinoglio , M. Pereira-Santaella , M. A. Malkan , P. Andreani , K. M. Dasyra

The cosmic far-infrared background (CIB) encodes dust emission from all galaxies and carries valuable information on structure formation, star formation, and chemical enrichment across cosmic time. However, its redshift-dependent spectrum…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-13 Yi-Kuan Chiang , Ryu Makiya , Brice Ménard

It has long been shown that the extreme ultraviolet spectrum of the ionizing stars of H II regions can be estimated by comparing the observed line emission to detailed models. In the Galactic Center (GC), however, previous observations have…

Astrophysics of Galaxies · Physics 2019-01-23 Janet P. Simpson

With high-resolution infrared data becoming available that can probe the formation of high-mass stellar clusters for the first time, models that make testable predictions of these objects are necessary. We utilize a three-dimensional…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David G. Whelan , Kelsey E. Johnson , Barbara A. Whitney , Remy Indebetouw , Kenneth Wood

We aimed to measure the H2O and dust production rates in C/2006 W3 (Christensen) with the Herschel Space Observatory at a heliocentric distance of ~ 5 AU. We have searched for emission in the H2O and NH3 ground-state rotational transitions…

We present the luminosity function of [OII]-emitting galaxies at a median redshift of z=0.9, as measured in the deep spectroscopic data in the STIS Parallel Survey (SPS). The luminosity function shows strong evolution from the local value,…

We present spatially resolved Herschel/PACS observations of the Orion Bar. We have characterise the emission of the far-infrared fine-structure lines of [CII] (158um), [OI] (63 and 145um), and [NII] (122um) that trace the gas local…

Solar and Stellar Astrophysics · Physics 2015-06-03 J. Bernard-Salas , E. Habart , H. Arab , A. Abergel , E. Dartois , P. Martin , S. Bontemp , C. Joblin , G. J. White , J. -P. Bernard , D. Naylor

Although the 2P3/2-2P1/2 transition of [CII] at 158um is known to be an excellent tracer of active star formation, we still do not have a complete understanding of where within star formation regions the emission originates. Here, we use…

While continuum imaging data at far-infrared to sub-millimeter wavelengths have provided tight constraints on the population properties of dusty star forming galaxies up to high redshifts, future space missions like the Space Infra-Red…

Astrophysics of Galaxies · Physics 2015-06-18 M. Bonato , M. Negrello , Z. -Y. Cai , G. De Zotti , A. Bressan , A. Lapi , C. Gruppioni , L. Spinoglio , L. Danese

We use three semi-analytic models (SAMs) of galaxy formation and evolution, run on the same 1$h^{-1}$Gpc MultiDark Planck2 cosmological simulation, to investigate the properties of [OII] emission line galaxies in the redshift range…

(abridged) The ambiguous origin of [CII] 158um in the interstellar medium complicates its use for diagnostics concerning the star-formation rate and physical conditions in photodissociation regions (PDRs). We observed the giant HII region…

We present a Bayesian inference method to characterise the dust emission properties using the well-known dust-HI correlation in the diffuse interstellar medium at Planck frequencies $\nu \ge 217$ GHz. We use the Galactic HI map from the…

We have undertaken a program to observe emission lines of SIV 10.5, NeII 12.8, NeIII 15.6, & SIII 18.7 um in a number of extragalactic HII regions with the Spitzer Space Telescope. We report our results for the nearly face-on spiral galaxy…

Using Herschel's HIFI instrument we have observed [C II] along a cut through S140 and high-J transitions of CO and HCO+ at two positions on the cut, corresponding to the externally irradiated ionization front and the embedded massive star…

The Infrared Array Camera (IRAC) on the Spitzer Space Telescope has revealed that a number of high-mass protostars are associated with extended mid-infrared emission, particularly prominent at 4.5-micron. These are called "Green Fuzzy"…

Solar and Stellar Astrophysics · Physics 2015-06-03 Michihiro Takami , How-Huan Chen , Jennifer L. Karr , Hsu-Tai Lee , Shih-Ping Lai , Young-Chol Minh

We present Herschel far-infrared (FIR) photometry of eleven quasars at redshift z>5 that have previously been detected at 1.2mm. We perform full spectral energy distribution (SED) fits over the wavelength range lambda_rest ~0.1-400mu for…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 C. Leipski , K. Meisenheimer , F. Walter , M. -A. Besel , H. Dannerbauer , X. Fan , M. Haas , U. Klaas , O. Krause , H. -W. Rix

The evolution of dwarf galaxies is dramatically affected by gaseous and dusty outflows, which can easily deprive their interstellar medium of the material needed for the formation of new stars, simultaneously enriching their surrounding…

Astrophysics of Galaxies · Physics 2024-03-13 M. Romano , D. Donevski , Junais , A. Nanni , M. Ginolfi , G. C. Jones , I. Shivaei , G. Lorenzon , M. Hamed , D. Salak , P. Sawant

Context. RCW 120 is a well-studied, nearby Galactic HII region with ongoing star formation in its surroundings. Previous work has shown that it displays a bubble morphology at mid-infrared wavelengths and has a massive layer of collected…

The HI and CO components of the interstellar medium (ISM) are usually used to derive the dynamical mass M_dyn of nearby galaxies. Both components become too faint to be used as a tracer in observations of high-redshift galaxies. In those…