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The relation between the star formation rate and the stellar mass of star-forming galaxies has been used to argue that major mergers cannot be the main driver of star formation. Here, we re-examine these arguments using the representative…

Astrophysics of Galaxies · Physics 2015-06-19 M. Puech , F. Hammer , M. Rodrigues , S. Fouquet , H. Flores , K. Disseau

We present MAMBO 1.2 mm observations of five BzK-pre-selected vigorous starburst galaxies at z~2. Two of these were detected at more than 99.5% confidence levels, with 1.2 mm fluxes around 1.5 mJy. These millimeter fluxes imply vigorous…

Disk galaxies at intermediate redshift ($z\sim0.7$) have been found in previous work to display more optically thick behaviour than their local counterparts in the rest-frame B-band surface brightness, suggesting an evolution in dust…

Astrophysics of Galaxies · Physics 2018-09-13 S. K. Leslie , M. T. Sargent , E. Schinnerer , B. Groves , A. van der Wel , G. Zamorani , Y. Fudamoto , P. Lang , V. Smolčić

Using a phenomenological approach, we self-consistently model the redshift evolution of the ultraviolet (UV) and infrared (IR) luminosity functions across cosmic time, as well as a range of observed IR properties of UV-selected galaxy…

Astrophysics of Galaxies · Physics 2015-06-19 E. Bernhard , M. Béthermin , M. Sargent , V. Buat , J. R. Mullaney , M. Pannella , S. Heinis , E. Daddi

A fundamental question of extra-galactic astronomy that is yet to be fully understood, concerns the evolution of the star formation rate (SFR) and supermassive black hole (SMBH) activity with cosmic time, as well as their interplay and how…

We examine the cosmic star formation rate (SFR) and its dependence on galaxy stellar mass over the redshift range 0.8 < z < 2 using data from the Gemini Deep Deep Survey (GDDS). The SFR in the most massive galaxies (M > 10^{10.8} M_sun) was…

We study the nature of rapidly star-forming galaxies at z=2 in cosmological hydrodynamic simulations, and compare their properties to observations of sub-millimetre galaxies (SMGs). We identify simulated SMGs as the most rapidly…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Romeel Davé , Kristian Finlator , Benjamin D. Oppenheimer , Mark Fardal , Neal Katz , Dušan Kereš , David H. Weinberg

We present the observed correlations between rest-frame 8, 24, 70 and 160 um monochromatic luminosities and measured total infrared luminosities L_IR of galaxies detected by Spitzer. Our sample consists of 372 star-forming galaxies with…

Astrophysics · Physics 2009-08-17 N. Bavouzet , H. Dole , E. Le Floc'h , K. I. Caputi , G. Lagache , C. S. Kochanek

We present high-redshift predictions of the star-formation-rate distribution function (SFR DF), UV luminosity function (UV LF), galactic stellar mass function (GSMF), and specific star-formation rates (sSFRs) of galaxies from the latest…

Astrophysics of Galaxies · Physics 2015-06-30 Scott Clay , Peter Thomas , Stephen Wilkins , Bruno Henriques

We present near-infrared spectroscopic confirmations of a sample of 16 photometrically-selected galaxies with stellar masses log(M_star/M_sun) > 11 at redshift z > 3 from the XMM-VIDEO and COSMOS-UltraVISTA fields using Keck/MOSFIRE as part…

We present measurements of the specific star-formation rate (SSFR)-stellar mass relation for star-forming galaxies. Our deep spectroscopic samples are based on the Redshift One LDSS3 Emission line Survey, ROLES, and European Southern…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David G. Gilbank , Richard G. Bower , Karl Glazebrook , Michael L. Balogh , I. K. Baldry , G. T. Davies , G. K. T. Hau , I. H. Li , P. McCarthy , M. Sawicki

We use Spitzer MIPS data from the FIDEL Legacy Project in the Extended Groth Strip to analyze the stellar mass assembly of massive (M>10^11 M_sun) galaxies at z<2 as a function of structural parameters. We find 24 micron emission for more…

Using a simple two-color selection based on $g$-, $z$-, and $K$-band photometry, we pick out 1609 star-forming galaxies (sgzKs) and 422 passively evolving galaxies (pgzKs) at z\sim2$ from a $K$-band-selected sample ($K_{\rm AB} < 22.0$) in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Guanwen Fang , Xu Kong , Yang Chen , Xuanbin Lin

Discerning the exact nature of the sub-mJy radio population has been historically difficult due to the low luminosity of these sources at most wavelengths. Using deep ground based optical follow-up and observations from the Spitzer Space…

Astrophysics · Physics 2009-11-13 N. Seymour , T. Dwelly , D. Moss , I. McHardy , A. Zoghbi , G. Rieke , M. Page , A. Hopkins , N. Loaring

For the first time, we investigate the X-ray/infrared (IR) correlation for star-forming galaxies at z~1, using SPIRE submm data from the recently-launched Herschel Space Observatory and deep X-ray data from the 2Ms Chandra deep field north…

Ultraluminous and luminous infrared galaxies (ULIRGs and LIRGs) are the most extreme star-forming galaxies in the universe, and dominate the total star formation rate density at z>1. In the local universe (z<0.3), the majority of ULIRGs and…

Four ultra-luminous infrared galaxies (ULIRGs) observed with JWST/NIRcam in the Cosmos Evolution Early Release Science program offer an unbiased preview of the $z\approx2$ ULIRG population. The objects were originally selected at 24 $\mu$m…

With the goal of investigating the degree to which the mid-infrared emission traces the star formation rate (SFR), we analyze Spitzer 8 um and 24 um data of star-forming regions in a sample of 33 nearby galaxies with available HST/NICMOS…

Leading models of galaxy formation require large-scale energetic outflows to regulate the growth of distant galaxies and their central black holes. However, current observational support for this hypothesis at high redshift is mostly…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 D. M. Alexander , A. M. Swinbank , I. Smail , R. McDermid , N. Nesvadba

[abridged] We study the evolution of the Star Formation Rate Function (SFRF) of massive galaxies over the 0.4<z<1.8 redshift range and its implications for our understanding of the physical processes responsible for galaxy evolution. We use…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Fabio Fontanot , Stefano Cristiani , Paola Santini , Adriano Fontana , Andrea Grazian , Rachel S. Somerville
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