Star formation near the Sun is driven by expansion of the Local Bubble

  title={Star formation near the Sun is driven by expansion of the Local Bubble},
  author={Catherine Zucker and Alyssa A. Goodman and Jo{\~a}o Alves and Shmuel Bialy and Michael M. Foley and Joshua S. Speagle and Josefa Gro$\beta$schedl and Douglas P. Finkbeiner and Andreas Burkert and Diana Khimey and Cameren N. Swiggum},
For decades we have known that the Sun lies within the Local Bubble, a cavity of low-density, high-temperature plasma surrounded by a shell of cold, neutral gas and dust 1 – 3 . However, the precise shape and extent of this shell 4 , 5 , the impetus and timescale for its formation 6 , 7 , and its relationship to nearby star formation 8 have remained uncertain, largely due to low-resolution models of the local interstellar medium. Here we report an analysis of the three-dimensional positions… 
Low energy cosmic rays
Low energy cosmic rays (up to the GeV energy domain) play a crucial role in the physics and chemistry of the densest phase of the interstellar medium. Unlike interstellar ionising radiation, they can
Galactic Cosmic Rays Throughout the Heliosphere and in the Very Local Interstellar Medium
We review recent observations and modeling developments on the subject of galactic cosmic rays through the heliosphere and in the Very Local Interstellar Medium, emphasizing knowledge that has
Nonthermal Radio Continuum Emission from Young Nearby Stars
Young and magnetically active low-mass stars often exhibit nonthermal coronal radio emission owing to the gyration of electrons in their magnetized chromospheres. This emission is easily detectable
The external photoevaporation of planet-forming discs
. Planet-forming disc evolution is not independent of the star formation and feedback process in giant molecular clouds. In particular, OB stars emit UV radiation that heats and disperses discs in a
Cosmic nucleosynthesis: A multi-messenger challenge
The role of low-lying resonances for $^{10}$Be(p,$\alpha$) reaction rate and implications for the formation of the Solar System
Evidence for the presence of short-lived radioactive isotopes when the Solar System formed is preserved in meteorites, providing insights into the conditions at the birth of our Sun. A low-mass


Modeling the magnetized Local Bubble from dust data
The Sun is embedded in the so-called Local Bubble (LB) – a cavity of hot plasma created by supernova explosions and surrounded by a shell of cold, dusty gas. Knowing the local distortion of the
A Galactic-scale gas wave in the solar neighbourhood
The three-dimensional structure of all cloud complexes in the solar neighbourhood is revealed, showing a narrow and coherent 2.7-kiloparsec arrangement of dense gas in theSolar neighbourhood that contains many of the clouds thought to be associated with the Gould Belt, bringing the Gouldbelt model into question.
3D dynamical evolution of the interstellar gas in the Gould Belt
The dynamical evolution of the Gould Belt has been modelled in 3D and compared to the spatial and velocity distributions of all HI and H 2 clouds found within a few hundred parsecs from the Sun and
The Supershell–Molecular Cloud Connection: Large-Scale Stellar Feedback and the Formation of the Molecular ISM
  • J. Dawson
  • Physics
    Publications of the Astronomical Society of Australia
  • 2013
Abstract 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
The Per-Tau Shell: A Giant Star-forming Spherical Shell Revealed by 3D Dust Observations
A major question in the field of star formation is how molecular clouds form out of the diffuse interstellar medium (ISM). Recent advances in 3D dust mapping are revolutionizing our view of the
An Initial Overview of the Extent and Structure of Recent Star Formation within the Serpens Molecular Cloud Using Gaia Data Release 2
The dense clusters within the Serpens Molecular Cloud are among the most active regions of nearby star formation. In this paper, we use Gaia DR2 parallaxes and proper motions to statistically measure
3D mapping of the dense interstellar gas around the Local Bubble
We present intermediate results from a long-term program of mapping the neutral absorption characteristics of the local interstellar medium, motivated by the availability of accurate and consistent
The locations of recent supernovae near the Sun from modelling 60Fe transport
Calculations of the most probable trajectories and masses of the supernova progenitors, and hence their explosion times and sites, are reported and the model reproduces the measured relative abundances very well.
Superbubbles in the Multiphase ISM and the Loading of Galactic Winds
We use numerical simulations to analyze the evolution and properties of superbubbles (SBs), driven by multiple supernovae (SNe), that propagate into the two-phase (warm/cold), cloudy interstellar
A theory of the interstellar medium - Three components regulated by supernova explosions in an inhomogeneous substrate
Supernova explosions in a cloudy interstellar medium produce a three-component medium in which a large fraction of the volume is filled with hot, tenuous gas. In the disk of the galaxy the evolution