中文
相关论文

相关论文: The Supershell-Molecular Cloud Connection in the M…

200 篇论文

We investigate the influence of large-scale stellar feedback on the formation of molecular clouds in the Large Magellanic Cloud (LMC). Examining the relationship between HI and 12CO(J=1-0) in supergiant shells (SGSs), we find that the…

星系天体物理 · 物理学 2013-01-10 J. R. Dawson , N. M. McClure-Griffiths , T. Wong , John M. Dickey , A. Hughes , Y. Fukui , A. Kawamura

The accumulation, compression and cooling of the ambient interstellar medium (ISM) in large-scale flows powered by OB cluster feedback can drive the production of dense molecular clouds. We review the current state of the field, with a…

星系天体物理 · 物理学 2013-04-10 J. R. Dawson

We present an in-depth case study of three molecular clouds associated with the walls of the Galactic supershells GSH 287+04-17 and GSH 277+00+36. These clouds have been identified in previous work as examples in which molecular gas is…

星系天体物理 · 物理学 2011-11-02 J. R. Dawson , N. M. McClure-Griffiths , John M. Dickey , Y. Fukui

We present new parsec-scale resolution data from a multi-phase study of the ISM in the walls of Galactic supershells. HI synthesis images and CO survey data reveal a wealth of substructure, including dense-tipped fingers and extended…

星系天体物理 · 物理学 2009-06-16 J. R. Dawson , N. M. McClure-Griffiths , Y. Fukui

We present parsec-scale resolution observations of the atomic and molecular ISM in two Galactic supershells, GSH 287+04-17 and GSH 277+00+36. HI synthesis images from the Australia Telescope Compact Array are combined with 12CO(J=1-0) data…

星系天体物理 · 物理学 2011-11-03 J. R. Dawson , N. M. McClure-Griffiths , A. Kawamura , N. Mizuno , T. Onishi , A. Mizuno , Y. Fukui

HI shells, which may be formed by the activity of young and massive stars, or connected to energy released by interactions of high-velocity clouds with the galactic disk, may be partly responsible both for the destruction of CO clouds and…

星系天体物理 · 物理学 2016-02-17 Sona Ehlerova , Jan Palous

Using hydrodynamical simulations of entire galactic discs similar to the Milky Way, reaching 4.6pc resolution, we study the origins of observed physical properties of giant molecular clouds (GMCs). We find that efficient stellar feedback is…

星系天体物理 · 物理学 2018-07-04 Kearn Grisdale , Oscar Agertz , Florent Renaud , Alessandro B. Romeo

Neutral atomic hydrogen (HI) gas in interstellar space is largely organized into filaments, loops, and shells, the most prominent of which are "supershells". These gigantic structures requiring $\gtrsim 3 \times 10^{52}$ erg to form are…

Dense, star-forming gas is believed to form at the stagnation points of large-scale ISM flows, but observational examples of this process in action are rare. We here present a giant molecular cloud (GMC) sandwiched between two colliding…

星系天体物理 · 物理学 2015-06-23 J. R. Dawson , E. Ntormousi , Y. Fukui , T. Hayakawa , K. Fierlinger

We present a comprehensive investigation of HI (super)clouds, molecular clouds (MCs), and star formation in the Carina spiral arm of the outer Galaxy. Utilizing HI4PI and CfA CO survey data, we identify HI clouds and MCs based on the ($l$,…

星系天体物理 · 物理学 2023-08-04 Geumsook Park , Bon-Chul Koo , Kee-Tae Kim , Bruce Elmegreen

Direct comparisons between galaxy simulations and observations that both reach scales < 100 pc are strong tools to investigate the cloud-scale physics of star formation and feedback in nearby galaxies. Here we carry out such a comparison…

Molecular cloud structure is regulated by stellar feedback in various forms. Two of the most important feedback processes are UV photoionisation and supernovae from massive stars. However, the precise response of the cloud to these…

星系天体物理 · 物理学 2016-09-21 Sam Geen , Patrick Hennebelle , Pascal Tremblin , Joakim Rosdahl

We use a series of high-resolution simulations of a `Milky-Way' halo coupled to semi-analytic methods to study the formation of our own Galaxy and of its stellar halo. The physical properties of our model Milky Way, as well as the age and…

天体物理学 · 物理学 2009-11-13 Gabriella De Lucia , Amina Helmi

We used CO (2-1) and CO (1-0) data cubes to identify molecular clouds and study their kinematics and dynamics in three nearby galaxies and the inner Milky Way. When observed at similar spatial and velocity resolutions, molecular clouds in…

星系天体物理 · 物理学 2025-11-03 J. W. Zhou , Sami Dib

Comparison of observed satellite galaxies of the Milky Way (hereafter MW) with dark matter subhaloes in cosmological $N$-body simulations of MW-mass haloes suggest that such subhaloes, if they exist, are occupied by satellites in a…

星系天体物理 · 物理学 2014-06-30 Chris Power , Graham A. Wynn , Aaron S. G. Robotham , Geraint F. Lewis , Mark I. Wilkinson

We review the progress made in understanding molecular cloud formation and evolution toward star formation since the first Crete conference in 1990. It now seems clear that molecular clouds in the Galaxy at least form from compressed HI…

天体物理学 · 物理学 2009-09-25 Leo Blitz , Jonathan P. Williams

We use magnetohydrodynamical simulations of converging warm neutral medium flows to analyse the formation and global evolution of magnetised and turbulent molecular clouds subject to supernova feedback from massive stars. We show that…

The winds and radiation from massive stars clear out large cavities in the interstellar medium. These bubbles, as they have been called, impact their surrounding molecular clouds and may influence the formation of stars therein. Here we…

星系天体物理 · 物理学 2014-11-20 Christopher N. Beaumont , Jonathan P. Williams

The relations between star formation and properties of molecular clouds are studied based on a sample of star forming regions in the Galactic Plane. Sources were selected by having radio recombination lines to provide identification of…

太阳与恒星天体物理 · 物理学 2017-03-08 Nalin Vutisalchavakul , Neal J. Evans , Mark Heyer

We investigate how the removal of interstellar material by stellar feedback limits the efficiency of star formation in molecular clouds and how this determines the shape of the mass function of young star clusters. In particular, we derive…

太阳与恒星天体物理 · 物理学 2015-05-14 S. Michael Fall , Mark R. Krumholz , Christopher D. Matzner
‹ 上一页 1 2 3 10 下一页 ›