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- W2530591811 endingPage "102" @default.
- W2530591811 startingPage "102" @default.
- W2530591811 abstract "We directly measure the thermal energy of the gas surrounding galaxies through the thermal Sunyaev–Zel'dovich (tSZ) effect. We perform a stacking analysis of microwave background images from the Atacama Cosmology Telescope, around 1179 massive quiescent elliptical galaxies at 0.5 ≤ z ≤ 1.0 (low-z) and 3274 galaxies at 1.0 ≤ z ≤ 1.5 (high-z), selected using data from the Wide-field Infrared Survey Explorer All-Sky Survey and the Sloan Digital Sky Survey (SDSS) within the SDSS Stripe-82 field. The gas surrounding these galaxies is expected to contain energy from past episodes of active galactic nucleus (AGN) feedback, and after using modeling to subtract undetected contaminants, we detect a tSZ signal at a significance of for our low-z galaxies and for our high-z galaxies. We then include data from the high-frequency Planck bands for a subset of 227 low-z galaxies and 529 high-z galaxies and find low-z and high-z tSZ detections of and , respectively. These results indicate an average thermal heating around these galaxies of erg for our low-z galaxies and erg for our high-z galaxies. Based on simple heating models, these results are consistent with gravitational heating without additional heating due to AGN feedback." @default.
- W2530591811 created "2016-10-21" @default.
- W2530591811 creator A5005518638 @default.
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- W2530591811 creator A5028683533 @default.
- W2530591811 creator A5042054781 @default.
- W2530591811 creator A5065836570 @default.
- W2530591811 date "2017-01-05" @default.
- W2530591811 modified "2023-09-30" @default.
- W2530591811 title "SEARCHING FOR FOSSIL EVIDENCE OF AGN FEEDBACK IN<i>WISE</i>-SELECTED STRIPE-82 GALAXIES BY MEASURING THE THERMAL SUNYAEV–ZEL’DOVICH EFFECT WITH THE ATACAMA COSMOLOGY TELESCOPE" @default.
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