English
Related papers

Related papers: The far-IR/radio correlation in the ISO era

200 papers

Using infrared data from the Herschel Space Observatory and Karl G. Jansky Very Large Array (VLA) 3 GHz observations in the COSMOS field, we investigate the redshift evolution of the infrared-radio correlation (IRRC) for star-forming…

We study the radio properties at 1.4 GHz of Seyfert galaxies with strong forbidden high-ionization lines (FHILs), selected from the Sloan Digital Sky Survey - a large-sized sample containing nearly equal proportion of diverse range of…

Astrophysics of Galaxies · Physics 2016-01-05 Dharam V. Lal

Traditionally, the far ultraviolet (FUV) to far-infrared (FIR) and radio spectral energy distributions (SEDs) of galaxies have been considered separately despite the common physical process shaping them. In this work, we explore the utility…

Astrophysics of Galaxies · Physics 2023-05-17 Jessica E. Thorne , Aaron S. G. Robotham , Sabine Bellstedt , Luke J. M. Davies

Context. Cosmic rays and magnetic fields are key ingredients in galaxy evolution, regulating both stellar feedback and star formation. Their properties can be studied with low-frequency radio continuum observations, free from thermal…

We exploit the vastly increased sensitivity of the Expanded Very Large Array (EVLA) to study the radio continuum and polarization properties of the post-starburst, dwarf irregular galaxy IC10 at 6 cm, at a linear resolution of ~50 pc. We…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Volker Heesen , Urvashi Rau , Michael Rupen , Elias Brinks , Deirdre A. Hunter

We report 250GHz (1.2mm) observations of redshift 1.8 < z < 2.8 optically luminous (M_B < -27.0), radio quiet quasars using the Max-Planck Millimeter Bolometer (MAMBO) array at the IRAM 30-metre telescope. Nine quasars were detected and for…

Astrophysics · Physics 2008-11-26 A. Omont , A. Beelen , F. Bertoldi , P. Cox , C. Carilli , R. S. Priddey , R. G. McMahon , K. G. Isaak

We present evidence that the mid infrared (MIR) is a good tracer of the total infrared luminosity, L(IR), and star formation rate (SFR), of galaxies up to z 1.3. We use deep MIR images from the Infrared Space Observatory (ISO) and the…

Astrophysics · Physics 2009-11-11 D Marcillac , D. Elbaz , R. R. Chary , M. Dickinson , F. Galliano , G. Morrison

We present the results of a multiwavelength study of nearby galaxies, aimed at understanding the relation between the ultraviolet and far-infrared emission in star-forming galaxies. The dataset comprises new ultraviolet (from HST/STIS),…

Cosmic ray protons interacting with gas at the mean density of the interstellar medium in starburst galaxies lose energy rapidly via inelastic collisions with ambient nuclei. The resulting pions produce secondary electrons and positrons,…

Astrophysics · Physics 2008-11-26 Todd A. Thompson , Eliot Quataert , Eli Waxman

We present a study on the effects of the intracluster medium (ICM) on the interstellar medium (ISM) of 10 Virgo cluster galaxies using {\it Spitzer} far-infrared (FIR) and VLA radio continuum imaging. Relying on the FIR-radio correlation…

Astrophysics · Physics 2008-02-19 E. J. Murphy , J. D. P. Kenney , G. Helou , A. Chung , J. H. Howell

We have analysed the 24um properties of a radio-selected sample in the Subaru-XMM/Newton Deep Field in order to explore the behaviour of the FIR/radio relation at high redshifts. Statistically, the correlation is described by q24, the ratio…

We investigate the evolution of far-IR CO emission from protostars observed with Herschel/PACS for 50 sources from the combined sample of HOPS and DIGIT Herschel key programs. From the uniformly sampled spectral energy distributions, we…

Astrophysics of Galaxies · Physics 2016-08-18 P. Manoj , J. D. Green , S. T. Megeath , N. J. Evans , A. M. Stutz , J. J. Tobin , D. M. Watson , W. J. Fischer , E. Furlan , T. Henning

To better characterize the global star formation (SF) activity in a galaxy, one needs to know not only the star formation rate (SFR) but also the rest-frame, far-infrared (FIR) color (e.g., the 60-to-100 $\mu$m color, $C(60/100)$] of the…

Observations of far-infrared (FIR) and submillimeter (SMM) polarized emission are used to study magnetic fields and dust grains in dense regions of the interstellar medium (ISM). These observations place constraints on models of molecular…

Astrophysics · Physics 2009-03-19 John E. Vaillancourt

As a constraint for new starburst/AGN models of IRAS bright galaxies we determine the radio spectra of 31 luminous and ultraluminous IRAS galaxies (LIRGs/ULIRGs). We construct the radio spectra using both new and archival data. From our…

Astrophysics · Physics 2009-11-13 M. S. Clemens , O. Vega , A. Bressan , G. L. Granato , L. Silva , P. Panuzzo

In order to check for consistency with the radio-loud AGN unification scheme, ISOPHOT data obtained for two small sets of intermediate redshift steep-spectrum 3CR radio galaxies and quasars are being examined. Supplementary submillimeter…

Astrophysics · Physics 2007-05-23 Ilse M. van Bemmel , Peter D. Barthel , Thijs de Graauw

We study the spatially resolved Radio Continuum-Star Formation Rate (RC-SFR) relation using state-of-the-art star-formation (SF) tracers in a sample of 17 THINGS galaxies. We use hybrid Sigma_SFR maps (GALEX FUV plus Spitzer 24 mu), RC maps…

Astrophysics of Galaxies · Physics 2014-04-07 Volker Heesen , Elias Brinks , Adam K. Leroy , George Heald , Robert Braun , Frank Bigiel , Rainer Beck

Infrared-faint radio sources (IFRS) are objects that have flux densities of several mJy at 1.4GHz, but that are invisible at 3.6um when using sensitive Spitzer observations with uJy sensitivities. Their nature is unclear and difficult to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Enno Middelberg , Ray P. Norris , Christopher A. Hales , Nick Seymour , Melanie Johnston-Hollitt , Minh T. Huynh , Emil Lenc , Minnie Y. Mao

Showing 1.4 GHz flux densities in the range of a few to a few tens of mJy, infrared-faint radio sources (IFRS) are a type of galaxy characterised by faint or absent near-infrared counterparts and consequently extreme radio-to-infrared flux…

Astrophysics of Galaxies · Physics 2015-07-22 Andreas Herzog , Ray P. Norris , Enno Middelberg , Lee R. Spitler , Christian Leipski , Quentin A. Parker

We study the correlation between the gamma-ray flux F_g, averaged over the first 11 months of Fermi survey and integrated above 100 MeV, and the radio flux density (F_r at 20 GHz) of Fermi sources associated with a radio counterpart in the…

High Energy Astrophysical Phenomena · Physics 2015-05-19 G. Ghirlanda , G. Ghisellini , F. Tavecchio , L. Foschini , G. Bonnoli
‹ Prev 1 8 9 10 Next ›