2 MICRON SPECTROPHOTOMETRY OF THE ORION NEBULA AND THE DETECTION OF SIGNIFICANT [FE-III] EMISSION

被引：12

作者：

DEPOY, DL

POGGE, RW

机构：

[1] Department of Astronomy, Ohio State University, Columbus, OH 43210-1106

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 433卷 / 02期

关键词：

H-II REGIONS; INFRARED; ISM; LINES AND BANDS; INDIVIDUAL (ORION NEBULA); LINE; IDENTIFICATION; TECHNIQUES; SPECTROSCOPIC;

D O I：

10.1086/174681

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present 2.0-2.4 mum spectra of the Orion Nebula (NGC 1976) made by stepping a long-slit spectrometer across the nebula. We have synthesized the spectrum of the Orion Nebula in a large effective aperture of 4' x 6' by combining the individual long-slit spectra. We have also extracted spectra from two smaller regions where we have observed strong H-2 and [Fe III] line emission, respectively. We detect significant [Fe III] emission and suggest that at low spectral resolutions some [Fe III] lines would be blended with critical H-2 lines and thus affect determinations of the H-2 excitation mechanism.

引用

页码：725 / 728

页数：4

共 10 条

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[9] The PEPSI Exoplanet Transit Survey (PETS) III. The detection of Fe I, Cr I, and Ti I in the atmosphere of MASCARA-1 b through high-resolution emission spectroscopy
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ASTRONOMY & ASTROPHYSICS, 2023, 674
[10] Imaging study of NGC 3372, the Carina nebula - III. The properties of G287.47-0.54 (Tr 14-N4), an embedded young cluster and its associated H2 emission
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Bohigas, Joaquin
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