Interstellar medium

Definition

Interstellar medium is the space between the stars. The interstellar medium is composed of gas (predominantly hydrogen and helium) and dust. Such interstellar matter makes up approximately 15% of the visible matter in our galaxy.

Latest Research and Reviews

  • Research |

    The re-discovery of the binary star system that created the Nova Scorpii AD 1437 stellar outburst shows that it is now a dwarf nova, suggesting that nova systems spend some time as dwarf novae in between larger outbursts.

    • M. M. Shara
    • , K. Iłkiewicz
    • , J. Mikołajewska
    • , A. Pagnotta
    • , M. F. Bode
    • , L. A. Crause
    • , K. Drozd
    • , J. Faherty
    • , I. Fuentes-Morales
    • , J. E. Grindlay
    • , A. F. J. Moffat
    • , M. L. Pretorius
    • , L. Schmidtobreick
    • , F. R. Stephenson
    • , C. Tappert
    •  & D. Zurek
    Nature 548, 558–560
  • Research |

    The majority of ‘jellyfish’ galaxies, characterized by long ‘tentacles’ of gas, also have active nuclei, indicating that gas is being fed to the central supermassive black hole by ram pressure.

    • Bianca M. Poggianti
    • , Yara L. Jaffé
    • , Alessia Moretti
    • , Marco Gullieuszik
    • , Mario Radovich
    • , Stephanie Tonnesen
    • , Jacopo Fritz
    • , Daniela Bettoni
    • , Benedetta Vulcani
    • , Giovanni Fasano
    • , Callum Bellhouse
    • , George Hau
    •  & Alessandro Omizzolo
    Nature 548, 304–309
  • Research |

    Large haloes of diffuse molecular gas discovered around high-redshift starburst galaxies show that galactic feedback, coupled to turbulence and gravity, extends the starburst phase instead of quenching it.

    • E. Falgarone
    • , M. A. Zwaan
    • , B. Godard
    • , E. Bergin
    • , R. J. Ivison
    • , P. M. Andreani
    • , F. Bournaud
    • , R. S. Bussmann
    • , D. Elbaz
    • , A. Omont
    • , I. Oteo
    •  & F. Walter
    Nature 548, 430–433

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