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A UNIFIED MODEL of the FERMI BUBBLES, MICROWAVE HAZE, and POLARIZED RADIO LOBES: REVERSE SHOCKS in the GALACTIC CENTER'S GIANT OUTFLOWS

Crocker, Roland; Bicknell, Geoffrey; Taylor, Andrew.M; Carretti, Ettore

Description

The Galactic center's giant outflows are manifest in three different, nonthermal phenomena: (1) the hard-spectrum, γ-ray "Fermi bubbles" emanating from the nucleus and extending to |b| ∼ 50°; (2) the hard-spectrum, total-intensity microwave (∼20-40 GHz) "haze" extending to |b| ∼ 35° in the lower reaches of the Fermi bubbles; and (3) the steep-spectrum, polarized, "S-PASS" radio (∼2-20 GHz) lobes that envelop the bubbles and extend to |b|∼ 60°. We find that the nuclear outflows inflate a genuine...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/103281
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/808/2/107

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