Cycles of Variability in Jupiter's Atmosphere from Ground-Based Mid-Infrared Observations

2021 ◽  
Author(s):  
Arrate Antunano ◽  
Leigh N Fletcher ◽  
Glenn S Orton ◽  
Henrik Melin ◽  
Padraig T. Donnelly ◽  
...  
2001 ◽  
Vol 205 ◽  
pp. 224-227
Author(s):  
Jean L. Turner

Subarcsecond radio and infrared observations reveal a class of luminous, obscured, optically thick HII regions associated with extremely large young clusters in nearby starburst galaxies. VLA images show bright radio nebulae with ne ∼ 104 cm−3, densities characteristic of young Galactic compact HII regions. Excitation of the nebulae requires the presence of several thousand O stars within regions of 1-10 pc extent, corresponding to clusters containing 105–106 stars. The compact nebulae are also bright in the mid-infrared, and can for significant fractions of not only the total IR luminosity, but also the total bolometric luminosity, of the parent galaxies. The prototype for these “supernebulae” is the large, obscured cluster in the dwarf galaxy NGC 5253.


1997 ◽  
Vol 163 ◽  
pp. 799-800
Author(s):  
Craig H. Smith ◽  
Christopher M. Wright ◽  
David K. Aitken ◽  
Patrick F. Roche

AbstractWe present the results from mid-infrared spectro-polarimetric observations of a number of bi-polar outflow sources. The specto-polarimetric data provides information on the polarization mechanism and the magnetic field direction. The field direction in the disks of the observed sources is most often normal to the ambient field direction and lies in the plane of the disk, indicating a toroidal rather than poloidal field configuration.


2005 ◽  
Vol 130 (5) ◽  
pp. 2237-2240 ◽  
Author(s):  
J. Farihi ◽  
B. Zuckerman ◽  
E. E. Becklin

2006 ◽  
Vol 648 (1) ◽  
pp. L25-L28 ◽  
Author(s):  
L. Snijders ◽  
P. P. van der Werf ◽  
B. R. Brandl ◽  
S. Mengel ◽  
D. Schaerer ◽  
...  

2010 ◽  
Vol 45 (1) ◽  
pp. 99-111 ◽  
Author(s):  
Almudena Alonso-Herrero ◽  
Miguel Pereira-Santaella ◽  
George H. Rieke ◽  
Luis Colina ◽  
Charles W. Engelbracht ◽  
...  

2016 ◽  
Author(s):  
Tomohiko Nakamura ◽  
Takashi Miyata ◽  
Shigeyuki Sako ◽  
Takafumi Kamizuka ◽  
Kentaro Asano ◽  
...  

2006 ◽  
Vol 2 (S237) ◽  
pp. 476-476
Author(s):  
L. Snijders ◽  
L. J. Kewley ◽  
P. P. van der Werf ◽  
B. R. Brandl

AbstractWe explore the physical characteristics of young stellar clusters in the Antennae by combining recent ground- and space-based mid-infrared observations with a newly developed set of diagnostic diagrams. Spitzer data give an overview of the star-forming regions extending over hundreds of parsecs, showing a dominant diffuse ISM component with a density of 102 cm−3 plus a small fraction of very compact material (106 cm−3). With its higher spatial resolution VISIR gives a close-up view of the latter component. Its emission line ratios suggest that these regions are fundamentally different from local star-forming regions. Instead of having small isolated UCHII regions, as in local star-forming regions, the average density of the medium of the whole region falls in the (ultra)compact regime, exceeding 104 cm−3 over tens of parsecs.


2003 ◽  
Vol 126 (1) ◽  
pp. 143-152 ◽  
Author(s):  
B. T. Soifer ◽  
J. J. Bock ◽  
K. Marsh ◽  
G. Neugebauer ◽  
K. Matthews ◽  
...  

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