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Fermi bubbles, the recently observed giant (~10 kpc high) gamma-ray emitting lobes on either side of our Galaxy (Su et al. 2010), appear morphologically connected to the Galactic center, and thus offer a chance to test several models of…

星系天体物理 · 物理学 2012-01-18 Kastytis Zubovas , Sergei Nayakshin , Andrew King

Fermi-LAT reveals two huge gamma-ray bubbles existing in the Galactic Center, called 'Fermi Bubbles'. The existence of two microwave bubbles at the same region are also reported by the observation by WMAP, dubbed 'WMAP haze'. In order to…

高能天体物理现象 · 物理学 2015-02-11 K. Sasaki , K. Asano , T. Terasawa

The Fermi Bubbles are giant Galactic structures observed in both gamma-rays and microwaves. Recent studies have found support for the hypothesis that the gamma-ray and microwave emission can both be understood as arising from a hard…

高能天体物理现象 · 物理学 2017-05-03 Sruthi A. Narayanan , Tracy R. Slatyer

Recently evidence has emerged for enormous features in the gamma-ray sky observed by the Fermi-LAT instrument: bilateral `bubbles' of emission centered on the core of the Galaxy and extending to around 10 kpc above and below the Galactic…

星系天体物理 · 物理学 2011-03-24 Roland M. Crocker , Felix Aharonian

Fermi has discovered two giant gamma-ray-emitting bubbles that extend nearly 10kpc in diameter north and south of the galactic center (GC). The existence of the bubbles was first evidenced in X-rays detected by ROSAT and later WMAP detected…

高能天体物理现象 · 物理学 2015-05-27 K. S. Cheng , D. O. Chernyshov , V. A. Dogiel , C. -M. Ko , W. -H. Ip

The Fermi Bubbles are gamma-ray structures extending from the center of the Milky Way to +/-50 degree Galactic latitude that were discovered in data obtained by the Fermi/LAT instrument. Their origin and power source remain uncertain. To…

高能天体物理现象 · 物理学 2025-11-11 Ami Tank , Roland Crocker , Mark R. Krumholz

Recently, the {\it{Fermi}} space telescope has discovered two large $\gamma$-ray emission regions, the so-called "Fermi bubbles", that extend up to $\sim 50^\circ$ above and below the Galactic center. The $\gamma$-ray emission from the…

高能天体物理现象 · 物理学 2015-06-15 Satyendra Thoudam

The origin of the Fermi bubbles and the microwave haze is yet to be determined. To disentangle different models requires detailed comparisons between theoretical predictions and multi-wavelength observations. Our previous simulations have…

星系天体物理 · 物理学 2013-10-30 H. -Y. K. Yang , M. Ruszkowski , E. Zweibel

The Fermi Gamma-ray Space Telescope reveals two large gamma-ray bubbles in the Galaxy, which extend about 50 degrees (~ 10 kpc) above and below the Galactic center (GC) and are symmetric about the Galactic plane. Using axisymmetric…

高能天体物理现象 · 物理学 2015-05-27 Fulai Guo , William G. Mathews

Fermi bubbles are giant gamma-ray structures extended north and south of the Galactic center with characteristic sizes of order of 10 kpc recently discovered by Fermi Large Area Telescope. Good correlation between radio and gamma-ray…

星系天体物理 · 物理学 2015-06-23 D. O. Chernyshov , K. S. Cheng , V. A. Dogiel , C. M. Ko

One of the most exciting discoveries of recent years is a pair of gigantic gamma-ray emission regions, the so-called Fermi bubbles, above and below the Galactic center. The bubbles, discovered by the Fermi space telescope, extend up to…

高能天体物理现象 · 物理学 2015-06-23 Satyendra Thoudam

The newly launched X-ray satellite, eRosita, has recently revealed two gigantic bubbles extending to ~80 degrees above and below the Galactic center. The morphology of these "eRosita bubbles" bears a remarkable resemblance to the Fermi…

高能天体物理现象 · 物理学 2022-03-08 H. -Y. Karen Yang , M. Ruszkowski , E. Zweibel

The Fermi Gamma-ray Space Telescope reveals two large bubbles in the Galaxy, which extend nearly symmetrically ~50 degrees above and below the Galactic center (GC). Using three-dimensional (3D) magnetohydrodynamic (MHD) simulations that…

星系天体物理 · 物理学 2015-06-05 H. -Y. K. Yang , M. Ruszkowski , P. M. Ricker , E. Zweibel , D. Lee

Fermi has discovered two giant gamma-ray-emitting bubbles that extend nearly 10 kpc in diameter. We propose that periodic star capture processes by the galactic supermassive black hole, Sgr A*, with a capture rate $<10^{-5}$ yr$^{-1}$ and…

高能天体物理现象 · 物理学 2011-09-29 V. A. Dogiel , D. O. Chernyshov , K. -S. Cheng , Y. Wang , C. -M. Ko , W. -H. Ip

Two enigmatic gamma-ray features in the Galactic central region, known as Fermi Bubbles (FBs), were found from Fermi-LAT data. An energy release (e.g., by tidal disruption events in the Galactic center, GC), generates a cavity with a shock…

高能天体物理现象 · 物理学 2024-11-25 Vladimir A. Dogiel , Chung-Ming Ko

The Fermi bubbles are part of a complex region of the Milky Way. This region presents broadband extended non-thermal radiation, apparently coming from a physical structure rooted in the Galactic Centre and with a partly-ordered magnetic…

高能天体物理现象 · 物理学 2015-06-18 Maxim V. Barkov , Valenti Bosch-Ramon

The diffuse gamma-ray sky revealed 'Bubbles' of emission above and below the Galactic Plane symmetric around the centre of the Milky Way with a height of 10 kpc in both directions. At present there is no convincing explanation for the…

高能天体物理现象 · 物理学 2015-06-22 Wim de Boer , Markus Weber

The {\it Fermi} Large Area Telescope has recently discovered two giant gamma-ray bubbles which extend north and south of the Galactic center with diameters and heights of the order of $H\sim 10$ kpc. We suggest that the periodic star…

高能天体物理现象 · 物理学 2015-06-03 K. S. Cheng , D. O. Chernyshov , V. A. Dogiel , C. M. Ko , W. H. Ip , Y. Wang

Data from the Fermi-LAT reveal two large gamma-ray bubbles, extending 50 degrees above and below the Galactic center, with a width of about 40 degrees in longitude. The gamma-ray emission associated with these bubbles has a significantly…

高能天体物理现象 · 物理学 2011-01-03 Meng Su , Tracy R. Slatyer , Douglas P. Finkbeiner

The Fermi bubbles are two giant bubbles in gamma rays lying above and below the Galactic center (GC). Despite numerous studies on the bubbles, their origin and emission mechanism remain elusive. Here we use a suite of hydrodynamic…

高能天体物理现象 · 物理学 2020-05-20 Ruiyu Zhang , Fulai Guo
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