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The [CII] 158um fine-structure line is the brightest emission line observed in local star-forming galaxies. As a major coolant of the gas-phase interstellar medium, [CII] balances the heating, including that due to far-ultraviolet photons,…

We combine a high-resolution hydro-simulation of the LambdaCDM cosmology with two radiative transfer schemes (for continuum and line radiation) to predict the properties, spectra and spatial distribution of fluorescent Ly-alpha emission at…

Astrophysics · Physics 2009-11-10 Sebastiano Cantalupo , Cristiano Porciani , Simon J. Lilly , Francesco Miniati

We analyze the applicability of far-infrared fine-structure lines [CII] 158 micron, [OI] 63 micron and [OIII] 88 micron to reliably trace the star formation rate (SFR) in a sample of low-metallicity dwarf galaxies from the Herschel Dwarf…

Many massive galaxies at the centres of relaxed galaxy clusters and groups have vast reservoirs of cool (~10,000 K) and cold (~100 K) gas. In many low redshift brightest group and cluster galaxies this gas is lifted into the hot ISM in…

We present a statistical algorithm for predicting the [CII] emission from Herschel and Spitzer continuum images using probability density functions between the [CII] emission and continuum emission. The [CII] emission at 158 $\mu$m is a…

Astrophysics of Galaxies · Physics 2023-08-23 Young Min Seo , Karen Willacy , Umaa Rebbapragada

In an earlier paper we modeled the far-infrared emission from a star-forming galaxy using the photoionisation code CLOUDY and presented metallicity sensitive diagnostics based on far-infrared fine structure line ratios. Here, we focus on…

Low-ionization-state far-infrared (FIR) emission lines may be useful diagnostics of star-formation activity in young galaxies, and at high redshift may be detectable from the ground. In practice, however, very little is known concerning how…

Astrophysics · Physics 2009-11-10 Gaelen Marsden , Colin Borys , Scott C. Chapman , Mark Halpern , Douglas Scott

A tight relation between the [CII]158$\mu$m line luminosity and star formation rate is measured in local galaxies. At high redshift ($z>5$), though, a much larger scatter is observed, with a considerable (15-20\%) fraction of the outliers…

Astrophysics of Galaxies · Physics 2019-09-04 A. Ferrara , L. Vallini , A. Pallottini , S. Gallerani , S. Carniani , M. Kohandel , D. Decataldo , C. Behrens

This paper outlines the science case for line-intensity mapping with a space-borne instrument targeting the sub-millimeter (microwaves) to the far-infrared (FIR) wavelength range. Our goal is to observe and characterize the large-scale…

Mapping of multiple lines such as the fine-structure emission from [CII] (157.7 $\mu \text{m}$), [OIII] (52 \& 88.4 $\mu \text{m}$), and rotational emission lines from CO are of particular interest for upcoming line intensity mapping (LIM)…

In this paper, we present an overview of our method of constructing a family of models for the far-infrared, sub-millimeter, and millimeter (FIR/sub-mm/mm) line emission of molecular and atomic gas surrounding massive star formation in…

Astrophysics · Physics 2007-05-23 Lihong Yao , E. R. Seaquist

The far-infrared (FIR) regime is one of the few wavelength ranges where no astronomical data with sub-arcsecond spatial resolution exist. Neither of the medium-term satellite projects like SPICA, Millimetron nor O.S.T. will resolve this…

We investigate emission line galaxies across cosmic time by combining the modified L-Galaxies semi-analytical galaxy formation model with the JiuTian cosmological simulation. We improve the tidal disruption model of satellite galaxies in…

Astrophysics of Galaxies · Physics 2024-04-02 Wenxiang Pei , Qi Guo , Ming Li , Qiao Wang , Jiaxin Han , Jia Hu , Tong Su , Liang Gao , Jie Wang , Yu Luo , Chengliang Wei

[Abridged] Cold gas flowing within the "cosmic web" is believed to be an important source of fuel for star formation at high redshift. However, the presence of such filamentary gas has never been observationally confirmed. In this work, we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Taysun Kimm , Adrianne Slyz , Julien Devriendt , Christophe Pichon

The [CII] 158$~\mu$m emission line represents so far one of the most profitable tools for the investigation of the high-redshift galaxies in the early Universe. Being one of the brightest cooling lines in the rest-frame far-infrared regime…

Far-infrared line and continuum fluxes are presented for a sample of 227 galaxies observed with the Long Wavelength Spectrometer on the Infrared Space Observatory. The galaxy sample includes normal star-forming systems, starbursts, and…

Astrophysics · Physics 2009-11-13 James R. Brauher , Daniel A. Dale , George Helou

We present for the first time predictions for UV line emission of intergalactic and circumgalactic gas from Adaptive Mesh Resolution (AMR) Large Scale Structure (LSS) simulations at redshifts 0.3<z<1.2, with specific emphasis on…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 S. Frank , Y. Rasera , D. Vibert , B. Milliard , A. Popping , J. Blaizot , S. Courty , J. M. Deharveng , C. Peroux , R. Teyssier , C. D. Martin

By opening up new avenues to statistically constrain astrophysics and cosmology with large-scale structure observations, the line intensity mapping (LIM) technique calls for novel tools for efficient forward modeling and inference. Implicit…

Our objectives are to determine the properties of the interstellar medium (ISM) and of star-formation in typical star-forming galaxies at high redshift. Following up on our previous multi-wavelength observations with HST, Spitzer, Herschel,…

Astrophysics of Galaxies · Physics 2015-03-18 D. Schaerer , F. Boone , T. Jones , M. Dessauges-Zavadsky , P. Sklias , M. Zamojski , A. Cava , J. Richard , R. Ellis , T. D. Rawle , E. Egami , F. Combes

We collected data for two samples of normal and interacting galaxies for a total of 2953 galaxies having fluxes in one or more of the following wavebands: FIR, 21 cm line, CO(1-0) lines and soft X-ray. The large set of data obtained allowed…

Astrophysics · Physics 2007-05-23 V. Casasola , L. Piovan , G. Galletta , D. Bettoni , E. Merlin