The hydroxyl masers in the Orion Nebula

1977 ◽  
Vol 218 ◽  
pp. L65 ◽  
Author(s):  
S. S. Hansen ◽  
J. M. Moran ◽  
M. J. Reid ◽  
K. J. Johnston ◽  
J. H. Spencer ◽  
...  
Keyword(s):  
Orion Nebula ◽  
Hydroxyl Masers

scholarly journals Double trouble: Gaia reveals (proto)planetary systems that may experience more than one dense star-forming environment

2020 ◽  
Vol 501 (1) ◽  
pp. L12-L17
Author(s):  
Christina Schoettler ◽  
Richard J Parker
Keyword(s):  
Planetary Systems ◽  
Young Star ◽  
Young Stars ◽  
Orion Nebula ◽  
External Effects ◽  
Star Forming ◽  
Star Forming Regions ◽  
Ejection Process ◽  
Runaway Stars

ABSTRACT Planetary systems appear to form contemporaneously around young stars within young star-forming regions. Within these environments, the chances of survival, as well as the long-term evolution of these systems, are influenced by factors such as dynamical interactions with other stars and photoevaporation from massive stars. These interactions can also cause young stars to be ejected from their birth regions and become runaways. We present examples of such runaway stars in the vicinity of the Orion Nebula Cluster (ONC) found in Gaia DR2 data that have retained their discs during the ejection process. Once set on their path, these runaways usually do not encounter any other dense regions that could endanger the survival of their discs or young planetary systems. However, we show that it is possible for star–disc systems, presumably ejected from one dense star-forming region, to encounter a second dense region, in our case the ONC. While the interactions of the ejected star–disc systems in the second region are unlikely to be the same as in their birth region, a second encounter will increase the risk to the disc or planetary system from malign external effects.

scholarly journals The Structure of the Orion Nebula in the Direction of θ 1 Ori C

2019 ◽  
Vol 881 (2) ◽  
pp. 130 ◽  
Author(s):  
N. P. Abel ◽  
G. J. Ferland ◽  
C. R. O’Dell
Keyword(s):  
Orion Nebula

The Age of the Orion Nebula

1965 ◽  
Vol 212 (2) ◽  
pp. 90-101
Author(s):  
Peter O. Vandervoort
Keyword(s):  
Orion Nebula

X‐Ray Emission from Early‐Type Stars in the Orion Nebula Cluster

2005 ◽  
Vol 160 (2) ◽  
pp. 557-581 ◽  
Author(s):  
B. Stelzer ◽  
E. Flaccomio ◽  
T. Montmerle ◽  
G. Micela ◽  
S. Sciortino ◽  
...  
Keyword(s):  
Orion Nebula ◽  
Early Type ◽  
X Ray ◽  
Early Type Stars

scholarly journals Fine-Scale Temperature Fluctuations in the Orion Nebula and thet2Problem

2003 ◽  
Vol 125 (5) ◽  
pp. 2590-2608 ◽  
Author(s):  
C. R. O'Dell ◽  
Manuel Peimbert ◽  
Antonio Peimbert
Keyword(s):  
Temperature Fluctuations ◽  
Fine Scale ◽  
Orion Nebula ◽  
Scale Temperature

scholarly journals The Kelvin–Helmholtz instability in the Orion nebula: the effect of radiation pressure

2017 ◽  
Vol 470 (3) ◽  
pp. 2559-2565
Author(s):  
S. Akram Yaghouti ◽  
Mohsen Nejad-Asghar ◽  
Shahram Abbassi
Keyword(s):  
Radiation Pressure ◽  
Orion Nebula ◽  
Helmholtz Instability
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