scholarly journals GEMINI near-infrared spectroscopic observations of young massive stars embedded in molecular clouds

2009 ◽  
Vol 394 (1) ◽  
pp. 467-478 ◽  
Author(s):  
A. Roman-Lopes ◽  
Z. Abraham ◽  
R. Ortiz ◽  
A. Rodriguez-Ardila
Keyword(s):  
Molecular Clouds ◽  
Near Infrared ◽  
Massive Stars ◽  
Spectroscopic Observations ◽  
Infrared Spectroscopic

scholarly journals AKARI NEAR-INFRARED SPECTROSCOPIC OBSERVATIONS OF INTERSTELLAR ICES IN THE EDGE-ON STARBURST GALAXY NGC 253

2011 ◽  
Vol 731 (1) ◽  
pp. L20 ◽  
Author(s):  
Mitsuyoshi Yamagishi ◽  
Hidehiro Kaneda ◽  
Daisuke Ishihara ◽  
Shinki Oyabu ◽  
Takashi Onaka ◽  
...  
Keyword(s):  
Near Infrared ◽  
Starburst Galaxy ◽  
Spectroscopic Observations ◽  
Infrared Spectroscopic ◽  
Interstellar Ices

scholarly journals Spectroscopy of the Ionizing Sources of UC HII Regions

2002 ◽  
Vol 12 ◽  
pp. 167-169
Author(s):  
Margaret M. Hanson
Keyword(s):  
Near Infrared ◽  
Massive Stars ◽  
Hii Regions ◽  
Spectroscopic Studies ◽  
Physical Conditions ◽  
Early Stages ◽  
Infrared Spectroscopic

AbstractThe utility of near-infrared, spectroscopic studies of central ionizing sources of UC HII regions is presented, in conjunction with a recently available, sophisticated atmospheric code, to constrain the physical conditions and environment of very massive stars at extremely early stages of evolution.

scholarly journals Compositions of Saturn's rings A, B, and C from high resolution near-infrared spectroscopic observations

2003 ◽  
Vol 412 (1) ◽  
pp. 305-316 ◽  
Author(s):  
F. Poulet ◽  
D. P. Cruikshank ◽  
J. N. Cuzzi ◽  
T. L. Roush ◽  
R. G. French
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Spectroscopic Observations ◽  
Infrared Spectroscopic ◽  
Saturn’S Rings ◽  
Saturn's Rings

Detection of Cyclotron Lines in BL Hyi

1995 ◽  
Vol 12 (1) ◽  
pp. 81-83
Author(s):  
Lilia Ferrario ◽  
Dayal T. Wickramasinghe ◽  
Jeremy Bailey
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Wavelength Range ◽  
Near Infrared ◽  
Emission Region ◽  
Polar Cap ◽  
Spectroscopic Observations ◽  
Infrared Spectroscopic ◽  
Cyclotron Emission

AbstractWe present near-infrared spectroscopic observations over the wavelength range 0·9 to 2·5 μm of the AM Herculis system BL Hyi. During these observations, broad and resolvable cyclotron emission harmonics were visible near 1·25, 1·60 and 2·20 μm. We have interpreted these features as arising from a cyclotron emission region located near the white dwarf’s polar cap of magnetic field strength Bp = 23 MG.

Near-infrared Spectroscopic Observations of Comet C/2013 R1 (Lovejoy) by WINERED: CN Red-system Band Emission

2017 ◽  
Vol 154 (2) ◽  
pp. 45 ◽  
Author(s):  
Yoshiharu Shinnaka ◽  
Hideyo Kawakita ◽  
Sohei Kondo ◽  
Yuji Ikeda ◽  
Naoto Kobayashi ◽  
...  
Keyword(s):  
Near Infrared ◽  
Spectroscopic Observations ◽  
Band Emission ◽  
Infrared Spectroscopic

scholarly journals Spectroscopic Observations of Be Stars in the Near Infrared

1976 ◽  
Vol 70 ◽  
pp. 59-65 ◽  
Author(s):  
R. S. Polidan ◽  
G. J. Peters
Keyword(s):  
Near Infrared ◽  
Be Stars ◽  
Binary Nature ◽  
Spectroscopic Observations ◽  
Infrared Spectroscopic

The results of near infrared spectroscopic observations of over 120 Be stars are presented. In particular, the O I lines at λ 7774 and λ 8446 Å and the Ca II triplet (λ 8498 Å, λ 8542 Å, and λ 8662 Å) are discussed. The presence of emission at O I λ 7774 Å is shown to correlate with Fe II emission. Shell absorption at this line is found to be similar in appearance to that found in the photospheric spectra of supergiants. The O I λ 8446 Å line, the result of a fluorescence with Lyman β, is briefly discussed in connection with Be envelope dimensions. The paradox presented by the presence of strong Ca II triplet emission without H and K emission is discussed. The implications of this phenomenon on the structure of Be envelopes and possibly the binary nature of some Be stars is discussed.Evidence indicating the presence of cool companions to the Be stars HD 218393 and HR 894 is presented.

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