scholarly journals Arp 220 – IC 4553/4: understanding the system and diagnosing the ISM

2007 ◽  
Vol 3 (S242) ◽  
pp. 437-445
Author(s):  
W. A. Baan
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Observational Data ◽  
X Ray ◽  
Infrared Galaxy ◽  
Luminous Infrared Galaxy

AbstractArp 220 is a nearby system in final stages of galaxy merger with powerful ongoing star-formation at and surrounding the two nuclei. Arp 220 was detected in HI absorption and OH Megamaser emission and later recognized as the nearest ultra-luminous infrared galaxy also showing powerful molecular and X-ray emissions. In this paper we review the available radio and mm-wave observational data of Arp 220 in order to obtain an integrated picture of the dense interstellar medium that forms the location of the powerful star-formation at the two nuclei.

scholarly journals ISO spectroscopy of star formation and active nuclei in the luminous infrared galaxy NGC 6240

2003 ◽  
Vol 409 (3) ◽  
pp. 867-878 ◽  
Author(s):  
D. Lutz ◽  
E. Sturm ◽  
R. Genzel ◽  
H. W. W. Spoon ◽  
A. F. M. Moorwood ◽  
...  
Keyword(s):  
Star Formation ◽  
Infrared Galaxy ◽  
Luminous Infrared Galaxy

scholarly journals 6.2. Efficiency in nuclear fueling

1998 ◽  
Vol 184 ◽  
pp. 265-266
Author(s):  
M. Noguchi
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Numerical Simulations ◽  
Observational Data ◽  
Formation Process ◽  
Large Body ◽  
Merging Galaxies ◽  
Numerical Studies ◽  
Galactic Astronomy ◽  
Theoretical Side

Starburst phenomena in interacting and merging galaxies have been one of the most widely investigated subjects in today's galactic astronomy. On the theoretical side, a large body of numerical studies have been performed in order to interpret available observational data. Numerical simulations have been advanced to the point where they can include interstellar medium (ISM) and star formation process.

Gas in galactic halos

2012 ◽  
Vol 10 (H16) ◽  
pp. 596-597
Author(s):  
Ralf-Jürgen Dettmar
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Observational Evidence ◽  
Molecular Gas ◽  
Galactic Halos ◽  
Feedback Mechanisms ◽  
X Ray

AbstractThe interstellar medium in galactic halos is described as a consequence of feedback mechanisms from processes related to star-formation in the disk. The presence of gas in galactic halos is also expected due to accretion of gas from the circumgalactic environment. The observational evidence for gas in galactic halos - from the hot X-ray emitting coronal phase to cool molecular gas and dust - is reviewed and discussed in the context of current models of the ISM and the “infall vs. outflow“ debate.

scholarly journals MULTI-WAVELENGTH GOALS OBSERVATIONS OF STAR FORMATION AND ACTIVE GALACTIC NUCLEUS ACTIVITY IN THE LUMINOUS INFRARED GALAXY IC 883

2011 ◽  
Vol 143 (1) ◽  
pp. 16 ◽  
Author(s):  
F. Modica ◽  
T. Vavilkin ◽  
A. S. Evans ◽  
D.-C. Kim ◽  
J. M. Mazzarella ◽  
...  
Keyword(s):  
Star Formation ◽  
Active Galactic Nucleus ◽  
Infrared Galaxy ◽  
Multi Wavelength ◽  
Luminous Infrared Galaxy

scholarly journals Off-Nuclear Star Formation and Obscured Activity in the Luminous Infrared Galaxy NGC 2623

2008 ◽  
Vol 675 (2) ◽  
pp. L69-L72 ◽  
Author(s):  
A. S. Evans ◽  
T. Vavilkin ◽  
J. Pizagno ◽  
F. Modica ◽  
J. M. Mazzarella ◽  
...  
Keyword(s):  
Star Formation ◽  
Infrared Galaxy ◽  
Luminous Infrared Galaxy

scholarly journals Spatially resolved kinematics, galactic wind, and quenching of star formation in the luminous infrared galaxy IRAS F11506-3851

2014 ◽  
Vol 569 ◽  
pp. A14 ◽  
Author(s):  
S. Cazzoli ◽  
S. Arribas ◽  
L. Colina ◽  
J. Piqueras-López ◽  
E. Bellocchi ◽  
...  
Keyword(s):  
Star Formation ◽  
Infrared Galaxy ◽  
Galactic Wind ◽  
Spatially Resolved ◽  
Luminous Infrared Galaxy

scholarly journals PDRs and XDRs

2011 ◽  
Vol 7 (S280) ◽  
pp. 177-186
Author(s):  
Rowin Meijerink
Keyword(s):  
Chemical Processes ◽  
Starburst Galaxy ◽  
X Ray ◽  
Infrared Galaxy ◽  
Luminous Infrared Galaxy

AbstractAn overview of the important thermal and chemical processes in “photon-dominated regions” or “photo-dissociation regions” (PDRs) and “X-ray dominated regions” (XDRs) is presented. Applications of the models are shown to observations of the ultra-luminous infrared galaxy Mrk 231, and the starburst galaxy M 82.

scholarly journals Sub-kpc star formation law in the local luminous infrared galaxy IC 4687 as seen by ALMA

2016 ◽  
Vol 587 ◽  
pp. A44 ◽  
Author(s):  
M. Pereira-Santaella ◽  
L. Colina ◽  
S. García-Burillo ◽  
P. Planesas ◽  
A. Usero ◽  
...  
Keyword(s):  
Star Formation ◽  
Infrared Galaxy ◽  
Luminous Infrared Galaxy

scholarly journals Magnetic fields and star formation – new observational results

2006 ◽  
Vol 2 (S237) ◽  
pp. 141-147
Author(s):  
Richard M. Crutcher ◽  
Thomas H. Troland
Keyword(s):  
Magnetic Field ◽  
Star Formation ◽  
Magnetic Fields ◽  
Interstellar Medium ◽  
Observational Data ◽  
Molecular Clouds ◽  
Dark Cloud ◽  
Magnetic Field Model ◽  
Field Lines ◽  
Cloud Cores

AbstractAlthough the subject of this meeting is triggered star formation in a turbulent interstellar medium, it remains unsettled what role magnetic fields play in the star formation process. This paper briefly reviews star formation model predictions for the ratio of mass to magnetic flux, describes how Zeeman observations can test these predictions, describes new results – an extensive OH Zeeman survey of dark cloud cores with the Arecibo telescope, and discusses the implications. Conclusions are that the new data support and extend the conclusions based on the older observational results – that observational data on magnetic fields in molecular clouds are consistent with the strong magnetic field model of star formation. In addition, the observational data on magnetic field strengths in the interstellar medium strongly suggest that molecular clouds must form primarily by accumulation of matter along field lines. Finally, a future observational project is described that could definitively test the ambipolar diffusion model for the formation of cores and hence of stars.

Sign in / Sign up

Export Citation Format

Share Document