SIMBAD references

2008ApJS..176...39Q - Astrophys. J., Suppl. Ser., 176, 39-58 (2008/May-0)

An infrared survey of brightest cluster galaxies. I.

QUILLEN A.C., ZUFELT N., PARK J., O'DEA C.P., BAUM S.A., PRIVON G., NOEL-STORR J., EDGE A., RUSSELL H., FABIAN A., DONAHUE M., BREGMAN J.N., McNAMARA B.R. and SARAZIN C.L.

Abstract (from CDS):

We report on an imaging survey with the Spitzer Space Telescope of 62 brightest cluster galaxies with optical line emission. These galaxies are located in the cores of X-ray luminous clusters selected from the ROSAT All-Sky Survey. We find that about half of these sources have a sign of excess infrared emission; 22 objects out of 62 are detected at 70 µm, 18 have 8/5.8 µm flux ratios above 1.0 and 28 have 24/8 µm flux ratios above 1.0. Altogether 35 of 62 objects in our survey exhibit at least one of these signs of infrared excess. Four galaxies with infrared excesses have a 4.5/3.6 µm flux ratio indicating the presence of hot dust, and/or an unresolved nucleus at 8 µm. Three of these have high measured [O III](5007 Å)/Hβ flux ratios suggesting that these four, Abell 1068, Abell 2146, Zwicky 2089, and R0821+07, host dusty active galactic nuclei (AGNs). Nine objects (including the four hosting dusty AGNs) have infrared luminosities greater than 1011 L and so can be classified as luminous infrared galaxies (LIRGs). Excluding the four systems hosting dusty AGNs, the excess mid-infrared emission in the remaining brightest cluster galaxies is likely related to star formation.

Abstract Copyright:

Journal keyword(s): Galaxies: Cooling Flows - Galaxies: Active - Galaxies: Clusters: General - Galaxies: Elliptical and Lenticular, cD - Infrared: Galaxies - Stars: Formation

VizieR on-line data: <Available at CDS (J/ApJS/176/39): table1.dat table2.dat table3.dat>

Nomenclature: Table 1: [QZP2008] JHHMMSS.s+DDMMSS N=62.

Simbad objects: 133

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2008ApJS..176...39Q and select 'bookmark this link' or equivalent in the popup menu


2020.02.17-11:37:52

© Université de Strasbourg/CNRS

    • Contact