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2023RNAAS...7...79I - Research Notes of the AAS, 7, 79 (2023/April-0)

Compact Sources in the A401-A399 Galaxy Cluster System Observed at 90 GHz with the MUSTANG-2 Camera.

ISOPI G., RADICONI F., CAPALBO V., BATTISTELLI E.S., CARRETTI E., DICKER S., GOVONI F., HINCKS A., LOI F., MASON B., MROCZKOWSKI T., MURGIA M., ORLOWSKI-SCHERER J., RAMATSOKU M., ROMERO C., SARAZIN C., SERRA P. and VACCA V.

Abstract (from CDS):

We report the fluxes of 10 compact sources in 90 GHz maps of the galaxy cluster A401 and the intercluster region between A401 and A399 from 66 hr of observations with the MUSTANG-2 receiver on the Green Bank Telescope. All sources have been previously detected in other bands (IR or radio). The flux and central coordinates of each source are fitted with 2D Gaussian profiles and fluxes are compared with an aperture photometry method. Future observations over a larger area would be a unique tool to compare theoretical predictions of source counts at 90 GHz with measured data, as well as refining their spectral index and improve extrapolations to higher frequencies.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Compact radiation sources - Cosmology - Galaxy clusters

Simbad objects: 12

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