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相关论文: Filaments in Galactic Winds Driven by Young Stella…

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INTEGRAL, the European Space Agency's gamma-ray observatory, tripled the number of super-giant high-mass X-ray binaries (sgHMXB) known in the Galaxy by revealing absorbed and fast transient (SFXT) systems. In these sources, quantitative…

天体物理学 · 物理学 2009-11-13 R. Walter , J. Zurita Heras

Aspects of the wind-dynamics in symbiotic binaries, colliding winds and accretion, are reviewed. Inconsistencies between theory and observations of the hot star wind are discussed. If the hot star wind were governed by CAK theory, nearly…

天体物理学 · 物理学 2007-05-23 Rolf Walder , Doris Folini

[abridged] The pressure exerted by the radiation of young stars may be an important feedback mechanism in forming star clusters and the disks of starburst galaxies. However, there is great uncertainty in how efficiently radiation couples to…

宇宙学与河外天体物理 · 物理学 2015-06-04 Mark R. Krumholz , Todd A. Thompson

We study line driven stellar winds using time-dependent radiation hydrodynamics where the continuum radiation couples to the gas via either a scattering or absorption opacity and there is an additional radiation force due to spectral lines…

太阳与恒星天体物理 · 物理学 2023-11-30 Sergei Dyda , Shane W. Davis

Star formation is mainly determined by the observation of H$\alpha$ radiation which is related to the presence of short lived massive stars. Disc galaxies show a strong cutoff in H$\alpha$ radiation at a certain galactocentric distance…

星系天体物理 · 物理学 2011-08-31 Jan Pflamm-Altenburg , Pavel Kroupa

We analyse high-resolution Hubble Space Telescope/Advanced Camera for Surveys imaging of the nuclear starburst region of M82, obtained as part of the Hubble Heritage mosaic made of this galaxy, in four filters (Johnson-Cousins equivalent B,…

天体物理学 · 物理学 2009-11-13 S. Barker , R. de Grijs , M. Cervino

We use two high resolution CDM simulations to show that (i) when clusters of galaxies form the infall pattern of matter is not random but shows clear features which are correlated in time; (ii) in addition, the infall patterns are…

天体物理学 · 物理学 2007-05-23 J. M. Colberg , S. D. M. White , A. Jenkins , F. R. Pearce

The large--scale structure (LSS) in the Universe comprises a complicated filamentary network of matter. We study this network using a high--resolution simulation of structure formation of a $\Lambda$ Cold Dark Matter cosmology. We…

天体物理学 · 物理学 2009-11-10 Joerg M. Colberg , K. Simon Krughoff , Andrew J. Connolly

We have discovered a 2.5 Mpc (projected) long filament of infrared-bright galaxies connecting two of the three ~5x10^14 Msun clusters making up the RCS 2319+00 supercluster at z=0.9. The filament is revealed in a deep Herschel Spectral and…

Recent surveys of dust continuum emission at sub-mm wavelengths have shown that filamentary molecular clouds are ubiquitous along the Galactic plane. These structures are inhomogeneous, with over-densities that are sometimes associated with…

星系天体物理 · 物理学 2016-01-27 Yanett Contreras , Guido Garay , Jill M. Rathborne , Patricio Sanhueza

Several gamma-ray binaries show extended X-ray emission that may be associated to interactions of an outflow with the medium. Some of these systems are, or may be, high-mass binaries harboring young nonaccreting pulsars, in which the…

高能天体物理现象 · 物理学 2015-05-28 V. Bosch-Ramon , M. V. Barkov

Galactic fountains driven by star formation result in a variety of kinematic structures such as ionised winds and thick gas disks, both of which manifest as complex emission line profiles that can be parametrised by multiple Gaussian…

For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy number density profiles around the filament spines. We find…

We present Monte Carlo simulations of the Diffuse H$\alpha$ Galactic Background. Our models comprise direct and multiply scattered H$\alpha$ radiation from the kpc scaleheight Warm Ionized Medium and midplane H II regions. The scattering is…

天体物理学 · 物理学 2008-11-26 Kenneth Wood , Ron Reynolds

We construct a filament catalogue using an extension of the halo based filament finder of Zhang et al.(2009), in a 250 Mpc/h side N-body simulation, and study the properties of filaments ending upon or surrounding galaxy clusters (within 10…

宇宙学与河外天体物理 · 物理学 2015-05-20 Yookyung Noh , J. D. Cohn

M82 is a unique representative of a whole class of galaxies, starbursts with superwinds, in the Very Nearby Galaxy Survey with Herschel. In addition, its interaction with the M81 group has stripped a significant portion of its interstellar…

Star formation takes place in filamentary molecular clouds which arise by physical processes that take place in the cold, neutral medium (CNM). We address the necessary conditions for this diffuse ($n \approx 30$ cm$^{-3}$), cold (T…

星系天体物理 · 物理学 2024-01-23 Rachel Pillsworth , Ralph E. Pudritz

Star-forming galaxies (SFGs) emit non-thermal radiation from radio to gamma-rays. We aim to investigate the main mechanisms of global CR transport and cooling in SFGs. The way they contribute in shaping the relations between non-thermal…

高能天体物理现象 · 物理学 2022-01-05 P. Kornecki , E. Peretti , S. del Palacio , P. Benaglia , L. J. Pellizza

Context: L'-band (3.8 micron) images of the Galactic Center show a large number of thin filaments in the mini-spiral, located west of the mini-cavity and along the inner edge of the Northern Arm. One possible mechanism that could produce…

天体物理学 · 物理学 2009-11-13 K. Muzic , A. Eckart , R. Schoedel , L. Meyer , A. Zensus

We briefly discuss a possible interconnection of vertical HI structures observed in the Milky Way Galaxy with large scale blow-outs caused by the explosions of multiple clustered SNe. We argue that the observed OB associations can produce…

天体物理学 · 物理学 2009-11-06 Yu. A. Shchekinov , R. -J. Dettmar , A. Schroeer , A. Steinacker