中文
相关论文

相关论文: Estimation and Effects of the mass outflow rate fr…

200 篇论文

Intermediate mass protostarsprovide a bridge between theories of low- and high-mass star formation. Emerging molecular outflows can be used to determine the influence of fragmentation and multiplicity on protostellar evolution through the…

Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far. They operate over the full extent of their galaxy hosts, from the innermost regions of galactic nuclei to the outermost reaches of galaxy halos. They…

星系天体物理 · 物理学 2020-04-15 Sylvain Veilleux , Roberto Maiolino , Alberto D. Bolatto , Susanne Aalto

Study of astrophysics of black holes and neutron stars has taken a new turn in the present decade with the realization that sub-Keplerian flows and the associated centrifugal barrier near the horizon or the surface of a neutron star play a…

高能天体物理现象 · 物理学 2017-04-10 Sandip K. Chakrabarti

Introducing a spherical, steady, self-supported pair-plasma pressure mediated shock surface around a Schwarzschild black hole as the effective physical atmosphere which may be responsible for the generation of astrophysical mass outflows…

天体物理学 · 物理学 2009-11-07 Tapas Kumar Das

Properties of starburst-driven outflows in dwarf galaxies are compared to those in more massive galaxies. Over a factor of roughly 10 in galactic rotation speed, supershells are shown to lift warm ionized gas out of the disk at rates up to…

天体物理学 · 物理学 2009-10-31 Crystal L. Martin

Recent observations that indicate that some extrasolar planets observed in transit can experience mass loss from their surfaces. Motivated by these findings, this paper considers outflows from Hot Jupiters in the regime where the flow is…

地球与行星天体物理 · 物理学 2015-05-27 Fred C. Adams

We consider stationary, axisymmetric hydrodynamic accretion flows in Kerr geometry. As a plausible means of efficiently separating a small population of nonthermal particles from the bulk accretion flows, we investigate the formation of…

天体物理学 · 物理学 2009-11-13 Keigo Fukumura , Demosthenes Kazanas

The interaction of a stellar or disk wind with a collapsing environment holds promise for explaining a variety of outflow phenomena observed around young stars. In this paper we present the first simulations of these interactions. The focus…

天体物理学 · 物理学 2009-10-31 G. Delamarter , A. Frank , L. Hartmann

The formation of high-mass stars is usually accompanied by powerful protostellar outflows. Such high-mass outflows are not simply scaled-up versions of their lower-mass counterparts, since observations suggest that the collimation degree…

We self-consistently estimate the outflow rate from the accretion rates of an accretion disk around a black hole in which both the Keplerian and the sub-Keplerian matter flows simultaneously. While Keplerian matter supplies soft-photons,…

天体物理学 · 物理学 2009-11-10 Santabrata Das , Indranil Chattopadhyay , A. Nandi , Sandip K. Chakrabarti

Most massive galaxies host a supermassive black hole at their centre. Matter accretion creates an active galactic nucleus (AGN), forming a relativistic particle wind. The wind heats and pushes the interstellar medium, producing…

星系天体物理 · 物理学 2024-09-23 Martynas Laužikas , Kastytis Zubovas

Galactic-scale outflows regulate the stellar mass growth and chemical enrichment of galaxies, yet key outflow properties such as the chemical composition and mass loss rate remain largely unknown. We address these properties with Keck/ESI…

星系天体物理 · 物理学 2018-09-14 Tucker Jones , Daniel P. Stark , Richard S. Ellis

The relation between the mass accretion rate onto the circumstellar disc and the rate of mass ejection by magnetically driven winds is investigated using three-dimensional magnetohydrodynamics simulations. Using a spherical cloud core with…

太阳与恒星天体物理 · 物理学 2017-07-05 Yuko Matsushita , Masahiro N. Machida , Yuya Sakurai , Takashi Hosokawa

We have observed 99 mid-infrared-bright, massive young stellar objects and compact HII regions drawn from the Red MSX source (RMS) survey in the J=3$-$2 transition of $^{12}$CO and $^{13}$CO, using the James Clerk Maxwell Telescope. 89…

太阳与恒星天体物理 · 物理学 2015-09-02 L. T. Maud , T. J. T. Moore , S. L. Lumsden , J. C. Mottram , J. S. Urquhart , M. G. Hoare

We study viscous accretion disc around black holes, and all possible accretion solutions, including shocked as well as shock free accretion branches. Shock driven bipolar outflows from a viscous accretion disc around a black hole has been…

高能天体物理现象 · 物理学 2015-06-12 Rajiv Kumar , Indranil Chattopadhyay

Outflows form an integral component in regulating the gas cycling in and out of galaxies, although their impact on the galaxy hosts is still poorly understood. Here we present an analysis of 405 high mass (log…

星系天体物理 · 物理学 2020-02-26 Guido Roberts-Borsani , Amélie Saintonge , Karen L. Masters , David V. Stark

Interstellar ultraviolet absorption-lines provide crucial information about the properties of galactic outflows. In this paper, we augment our previous analysis of the systematic properties of starburst-driven galactic outflows by expanding…

星系天体物理 · 物理学 2016-05-04 Timothy M. Heckman , Sanchayeeta Borthakur

A total of 188 high-mass outflows have been identified from a sample of 694 clumps from the Millimetre Astronomy Legacy Team 90 GHz survey, representing a detection rate of approximately 27%. The detection rate of outflows increases from…

Studying outflows from young massive star-forming clusters allows one to deduce physical processes that lead to the formation of the most massive stars. I will review the current state of high-spatial-resolution interferometric (sub-)mm…

天体物理学 · 物理学 2007-05-23 H. Beuther

Molecular outflows in the form of wide-angle winds and/or well-collimated jets are associated with young stellar objects of all luminosities. Independent studies have established that the mass outflow rate is proportional to L_bol^0.6 for…

天体物理学 · 物理学 2009-11-11 D. S. Shepherd