Near-infrared emission-line spectra of the Orion Nebula, NGC 4151, and other Seyfert galaxies

1990 ◽  
Vol 352 ◽  
pp. 561 ◽  
Author(s):  
Donald E. Osterbrock ◽  
Richard A. Shaw ◽  
Sylvain Veilleux
Keyword(s):  
Emission Line ◽  
Near Infrared ◽  
Seyfert Galaxies ◽  
Infrared Emission ◽  
Orion Nebula ◽  
Ngc 4151 ◽  
Near Infrared Emission

scholarly journals Near-Infrared Emission-Line Spectra of the Orion Nebula, NGC 4151, and Other Seyfert Galaxies

1989 ◽  
Vol 134 ◽  
pp. 298-300
Author(s):  
D. E. Osterbrock ◽  
R. A. Shaw ◽  
S. Veilleux
Keyword(s):  
Near Infrared ◽  
Good Deal ◽  
Seyfert Galaxies ◽  
Infrared Emission ◽  
Orion Nebula ◽  
Ngc 4151 ◽  
Relative Line ◽  
Infrared Spectral ◽  
Moderate Resolution ◽  
Near Infrared Emission

CCDs make the near-infrared spectral region out to about 1.1 μ observable. A good deal of information on the spectra of AGNs in this range has been published, which we are trying to systematize and extend at Lick. Our original lens-grism spectrograph camera is opaque over the region λ8600-λ10250, no doubt as a result of a coating on one of the elements of the Nikon lens, making this program impossible with it. However our newer “UV-Schmidt” camera is quite effective in this region. With it we have obtained well exposed spectra at moderate resolution (FWHM ≈ 7 Å) of NGC 4151 in three overlapping segments covering the region 7000–11000 Å. Also, for comparison we obtained similar spectra of NGC 1976, the Orion Nebula. The wavelengths and relative line fluxes were measured, and most of the lines were identified. The strongest three lines in both objects are, in order, [S III] λ9532, He I λ10830, and [S III] λ9069. The Orion Nebula spectrum is very helpful for identifying lines in NGC 4151, and for comparison with it. Among the lines identified in NGC 1976, many of them previously known, are [O II], [S II], [Ar III], [Fe II], [Ni II], [Ni III], [Cl II], [C I], in addition to O I λ8446, many H I Paschen lines and He I.

scholarly journals Near-Infrared Emission-Line Galaxies in the Hubble Deep Field North

2000 ◽  
Vol 52 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Fumihide Iwamuro ◽  
Kentaro Motohara ◽  
Toshinori Maihara ◽  
Jun'ichi Iwai ◽  
Hirohisa Tanabe ◽  
...  
Keyword(s):  
Emission Line ◽  
Near Infrared ◽  
Infrared Emission ◽  
Emission Line Galaxies ◽  
Hubble Deep Field ◽  
Near Infrared Emission

Near-infrared emission-line and continuum observations from the 1991 eclipse

1994 ◽  
Vol 436 ◽  
pp. 368 ◽  
Author(s):  
M. J. Penn ◽  
J. Arnaud ◽  
D. L. Mickey ◽  
B. J. Labonte
Keyword(s):  
Emission Line ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

Near-infrared emission-line images of three Herbig-Haro objects

1991 ◽  
Vol 371 ◽  
pp. 226 ◽  
Author(s):  
Karl R. Stapelfeldt ◽  
Nicholas Z. Scoville ◽  
Charles A. Beichman ◽  
J. Jeff Hester ◽  
Thomas N., III Gautier
Keyword(s):  
Emission Line ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

scholarly journals Amphiprotism-Coupled Near-Infrared Emission in Extended Pyrazinacenes Containing Seven Linearly Fused Pyrazine Units

2019 ◽  
Vol 141 (50) ◽  
pp. 19570-19574 ◽  
Author(s):  
Gary J. Richards ◽  
Aël Cador ◽  
Shinji Yamada ◽  
Anna Middleton ◽  
Whitney A. Webre ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

Broadband near-infrared emission of K3ScF6:Cr3+ phosphors for night vision imaging system sources

2021 ◽  
Vol 417 ◽  
pp. 129271
Author(s):  
Haojun Yu ◽  
Jian Chen ◽  
Ruiyu Mi ◽  
Juyu Yang ◽  
Yan-gai Liu
Keyword(s):  
Near Infrared ◽  
Imaging System ◽  
Infrared Emission ◽  
Night Vision ◽  
Near Infrared Emission
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