The Star Formation and Nuclear Accretion Histories of Normal Galaxies in the AGES Survey

Abstract

We combine IR, optical and X-ray data from the overlapping, 9.3 square degree NOAO Deep Wide-Field Survey (NDWFS), AGN and Galaxy Evolution Survey (AGES), and XBootes Survey to measure the X-ray evolution of 6146 normal galaxies as a function of absolute optical luminosity, redshift, and spectral type over the largely unexplored redshift range 0.1 < z < 0.5. Because only the closest or brightest of the galaxies are individually detected in X-rays, we use a stacking analysis to determine the mean properties of the sample. Our results suggest that X-ray emission from spectroscopically late-type galaxies is dominated by star formation, while that from early-type galaxies is dominated by a combination of hot gas and AGN emission. We find that the mean star formation and supermassive black hole accretion rate densities evolve like (1+z)^3, in agreement with the trends found for samples of bright, individually detectable starburst galaxies and AGN. Our work also corroborates the results of many previous stacking analyses of faint source populations, with improved statistics.

19 pages, 15 figures, 3 tables, accepted for publication in ApJ

References in corpus (8)

• An Observational Determination of the Bolometric Quasar Luminosity Function
• Star formation in AEGIS field galaxies since z=1.1 . Staged galaxy formation, and a model of mass-dependent gas exhaustion
• The dependence of Star Formation on Galaxy Stellar Mass
• Tracing the Mass-Dependent Star Formation History of Late-Type Galaxies using X-ray Emission: Results from the Chandra Deep Fields
• The X-ray Properties of Early-Type Galaxies in the Extended Chandra Deep Field-South
• The X-ray emission of Lyman break galaxies
• X-ray selected starbursts in the GOODS-North
• The galaxy luminosity function and its evolution with Chandra

Cited by in corpus (10)

• The Cosmic Core-collapse Supernova Rate does not match the Massive-Star Formation Rate
• A correlation between star formation rate and average black hole accretion in star forming galaxies
• AGES: The AGN and Galaxy Evolution Survey
• Galaxy And Mass Assembly (GAMA): The input catalogue and star-galaxy separation
• Extended Hot Halos Around Isolated Galaxies Observed in the ROSAT All-Sky Survey
• The X-ray Star Formation Story as Told by Lyman Break Galaxies in the 4 Ms CDF-S
• Observational constraints on the co-evolution of supermassive black holes and galaxies
• The XXL Survey: VI. The 1000 brightest X-ray point sources
• The Cosmic History of Hot Gas Cooling and Radio AGN Activity in Massive Early-Type Galaxies
• The Wyoming Survey for H-alpha. III. A Multi-wavelength Look at Attenuation by Dust in Galaxies out to z~0.4