scholarly journals The Molecular Interstellar Medium of Dwarf Galaxies on Kiloparsec Scales: A New Survey for CO in Northern,IRAS‐detected Dwarf Galaxies

2005 ◽  
Vol 625 (2) ◽  
pp. 763-784 ◽  
Author(s):  
A. Leroy ◽  
A. D. Bolatto ◽  
J. D. Simon ◽  
L. Blitz
Keyword(s):  
Interstellar Medium ◽  
Dwarf Galaxies

scholarly journals The Violent Interstellar Medium of Nearby Dwarf Galaxies

1999 ◽  
Vol 16 (1) ◽  
pp. 106-112 ◽  
Author(s):  
Fabian Walter
Keyword(s):  
Interstellar Medium ◽  
Gamma Ray ◽  
Dwarf Galaxies ◽  
Young Star ◽  
Stellar Winds ◽  
Star Forming ◽  
Star Forming Regions ◽  
Supernova Explosions ◽  
High Velocity Clouds ◽  
Ob Associations

AbstractHigh resolution HI observations of nearby dwarf galaxies (most of which are situated in the M81 group at a distance of about 3·2 Mpc) reveal that their neutral interstellar medium (ISM) is dominated by hole-like features most of which are expanding. A comparison of the physical properties of these holes with the ones found in more massive spiral galaxies (such as M31 and M33) shows that they tend to reach much larger sizes in dwarf galaxies. This can be understood in terms of the galaxy's gravitational potential. The origin of these features is still a matter of debate. In general, young star forming regions (OB-associations) are held responsible for their formation. This picture, however, is not without its critics and other mechanisms such as the infall of high velocity clouds, turbulent motions or even gamma ray bursters have been recently proposed. Here I will present one example of a supergiant shell in IC 2574 which corroborates the picture that OB associations are indeed creating these structures. This particular supergiant shell is currently the most promising case to study the effects of the combined effects of stellar winds and supernova explosions which shape the neutral interstellar medium of (dwarf) galaxies.

scholarly journals The Interstellar Medium of Dwarf Galaxies

Galaxies ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 11
Author(s):  
Christian Henkel ◽  
Leslie K. Hunt ◽  
Yuri I. Izotov
Keyword(s):  
Interstellar Medium ◽  
Dwarf Galaxies ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Ionized Gas ◽  
Green Pea ◽  
Physical And Chemical ◽  
The Impact ◽  
The Universe ◽  
And Chemical Properties

Dwarf galaxies are by far the most numerous galaxies in the Universe, showing properties that are quite different from those of their larger and more luminous cousins. This review focuses on the physical and chemical properties of the interstellar medium of those dwarfs that are known to host significant amounts of gas and dust. The neutral and ionized gas components and the impact of the dust will be discussed, as well as first indications for the existence of active nuclei in these sources. Cosmological implications are also addressed, considering the primordial helium abundance and the similarity of local Green Pea galaxies with young, sometimes protogalactic sources in the early Universe.

scholarly journals On the properties of the interstellar medium in extremely metal-poor blue compact dwarf galaxies

2014 ◽  
Vol 569 ◽  
pp. A110 ◽  
Author(s):  
P. Lagos ◽  
P. Papaderos ◽  
J. M. Gomes ◽  
A. V. Smith Castelli ◽  
L. R. Vega
Keyword(s):  
Interstellar Medium ◽  
Dwarf Galaxies

Observations of the impact of starbursts on the interstellar medium in dwarf galaxies

1995 ◽  
Vol 438 ◽  
pp. 563 ◽  
Author(s):  
Amanda T. Marlowe ◽  
Timothy M. Heckman ◽  
Rosemary F. G. Wyse ◽  
Robert Schommer
Keyword(s):  
Interstellar Medium ◽  
Dwarf Galaxies ◽  
The Impact

scholarly journals Interstellar Medium and Star Formation in Dwarf Galaxies

2018 ◽  
Vol 14 (S344) ◽  
pp. 233-239
Author(s):  
Alberto D. Bolatto
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Dwarf Galaxies ◽  
Gas Content ◽  
Star Formation Activity ◽  
The Galaxy ◽  
Cold Gas

AbstractThis is a brief review of our understanding of the properties of the interstellar medium (ISM) in dwarf galaxies in connection to their star formation activity. What are the dominant phases of the ISM in these objects? How do the properties of these phases depend on the galaxy properties? What do we know about their cold gas content and its link to star formation activity? Does star formation proceed differently in these galaxies? How does star formation feedback operate in dwarf galaxies? The availability of observations from space-based facilities such as FUSE, Spitzer, Herschel, and Fermi, as well as observatories such as SOFIA and ALMA, is allowing us to make significant strides in our understanding of these questions.

scholarly journals A study of interstellar medium of dwarf galaxies using H i power spectrum analysis

2009 ◽  
Vol 398 (2) ◽  
pp. 887-897 ◽  
Author(s):  
Prasun Dutta ◽  
Ayesha Begum ◽  
Somnath Bharadwaj ◽  
Jayaram N. Chengalur
Keyword(s):  
Power Spectrum ◽  
Interstellar Medium ◽  
Spectrum Analysis ◽  
Dwarf Galaxies ◽  
Power Spectrum Analysis
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