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We present a multi-wavelength analysis of star-forming galaxies in the massive cluster MS0451.6-0305 at z $\sim$ 0.54 to shed new light on the evolution of the far-infrared-radio relationship in distant rich clusters. We have derived total…

Astrophysics of Galaxies · Physics 2015-06-23 S. M. Randriamampandry , S. M. Crawford , C. M. Cress , K. M. Hess , M. Vaccari , E. M. Wilcots , M. A. Bershady , G. D. Wirth

We present an initial look at the far infrared-radio correlation within the star-forming disks of four nearby, nearly face-on galaxies (NGC~2403, NGC~3031, NGC~5194, and NGC~6946). Using {\it Spitzer} MIPS imaging and WSRT radio continuum…

Astrophysics · Physics 2015-06-24 Eric J. Murphy , Robert Braun , George Helou , Lee Armus , Jeff D. P. Kenney , the SINGS team

The far-infrared - radio correlation connects star formation and magnetic fields in galaxies, and has been confirmed over a large range of far-infrared luminosities. Recent investigations indicate that it may even hold in the regime of…

Astrophysics of Galaxies · Physics 2016-09-28 Dominik R. G. Schleicher , Rainer Beck

Infrared-Faint Radio Sources (IFRSs) are a class of source which are bright at radio frequencies, but do not appear in deep infrared images. We report the detection of 14 IFRSs within the Spitzer extragalactic First Look Survey field, eight…

Astrophysics · Physics 2009-11-13 Timothy Garn , Paul Alexander

Observations of the Spitzer extragalactic First Look Survey field taken at 610 MHz with the Giant Metrewave Radio Telescope are presented. Seven individual pointings were observed, covering an area of 4 square degrees with a resolution of…

Astrophysics · Physics 2008-11-26 Timothy Garn , David A. Green , Sally E. G. Hales , Julia M. Riley , Paul Alexander

A key for understanding the evolution of galaxies and in particular their star formation history will be future ultra-deep radio surveys. While star formation rates (SFRs) are regularly estimated with phenomenological formulas based on the…

Astrophysics of Galaxies · Physics 2017-04-12 Jennifer Schober , Dominik R. G. Schleicher , Ralf S. Klessen

The assessment of the relationship between radio continuum luminosity and star formation rate (SFR) is of crucial importance to make reliable predictions for the forthcoming ultra-deep radio surveys and to allow a full exploitation of their…

We investigate the far-infrared-radio correlation (FRC) of stellar-mass-selected galaxies in the Extended Chandra Deep Field South using far-infrared imaging from Spitzer and radio imaging from the Very Large Array and Giant Metre-Wave…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 N. Bourne , L. Dunne , R. J. Ivison , S. J. Maddox , M. Dickinson , D. T. Frayer

Previous observational studies of the infrared (IR)-radio relation out to high redshift employed any detectable star forming systems at a given redshift within the restricted area of cosmological survey fields. Consequently, the evolution…

In order to analyze the importance of the star formation rate in generating and amplifying magnetic fields in the interstellar medium we obtained deep total power and polarization maps at 4.85 GHz of three late type spiral galaxies NGC4236,…

Astrophysics · Physics 2009-11-11 K. T. Chyzy , D. J. Bomans , M. Krause , R. Beck , M. Soida , M. Urbanik

The Infrared Space Observatory (ISO) is used to carry out mid-IR (7 and 15 micron) and far-IR (90 micron) observations of a sample of star-forming sub-mJy radio sources. By selecting the sample at radio wavelengths, one avoids biases due to…

Astrophysics · Physics 2009-11-06 Bahram Mobasher , Jose Afonso , Lawrence Cram

New deep optical and near-infrared imaging is combined with archival ultraviolet and infrared data for fifteen nearby galaxies mapped in the Spitzer Extended Disk Galaxy Exploration Science survey. These images are particularly deep and…

We investigate the properties of massive galaxies at z=1-3.5 using HST observations, ground-based near-IR imaging, and Spitzer Space Telescope observations at 3-24 micron. We identify 153 distant red galaxies (DRGs) with J-K > 2.3 mag…

Using data from the mid-infrared to millimeter wavelengths for individual galaxies and for stacked ensembles at 0.5<z<2, we derive robust estimates of dust masses (Mdust) for main sequence (MS) galaxies, which obey a tight correlation…

We study the radio spectral properties of 2,094 star-forming galaxies (SFGs) by combining our early science data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey with VLA, GMRT radio data, and rich…

We analyze the optical spectra of massive (log M*/Msun > 11.4) radio-loud galaxies at z~0.2 and z~0.6. By comparing stellar population parameters of these radio-loud samples with radio-quiet control samples, we investigate how the presence…

The density of the far infrared / submillimeter (FIR/SMM) diffuse extragalactic radiation field has recently been determined from COBE data. Nearly simultaneously, deep FIR/SMM surveys have detected substantial numbers of optically…

Astrophysics · Physics 2009-10-31 Martin Harwit

Discerning the exact nature of the faint (sub-mJy) radio population has been historically difficult due to the low luminosity of these sources at most wavelengths. Using deep observations from Chandra/XMM-Newton/Spitzer and ground based…

Astrophysics · Physics 2019-08-15 N. Seymour , T. Dwelly , D. Moss , I. McHardy , M. Page , N. Loaring , G. Reieke

Given the multiple energy loss mechanisms of cosmic ray electrons in galaxies, the tightness of the infrared - radio continuum correlation is surprising. We extended the analytical model of galactic disks of Vollmer et al. (2017) by…

Astrophysics of Galaxies · Physics 2022-11-02 B. Vollmer , M. Soida , J. Dallant

We examine the rest-frame far-infrared emission from powerful radio sources with 1.4GHz luminosity densities of 25<=log(L_1.4/WHz^-1)<=26.5 in the extragalactic Spitzer First Look Survey field. We combine Herschel/SPIRE flux densities with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 N. Seymour , M. Symeonidis , M. Page , the HerMES Consortium