DETECTION OF [FE-II] EMISSION IN THE GALACTIC-CENTER

被引：12

作者：

DEPOY, DL

机构：

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

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 398卷 / 02期

关键词：

GALAXY; CENTER; H-2; REGIONS; INFRARED; INTERSTELLAR; LINES;

D O I：

10.1086/171875

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Emission from [Fe II] at 1.644 mum and 1.533 mum has been detected in the Galactic center. The spatial and velocity structure of the emission is similar to that of Brgamma and [Ne II]. The dereddened ratio of [Fe II] 1.644 mum to Brgamma emission is approximately 1, much greater than for a typical H II region but smaller than typically found in supernova remnants. The dereddened ratio of the 1.533 mum to 1.644 mum emission near the emission peak is 0.33 +/- 0.05, which suggests n(e) > 10(5) cm-3 in the Galactic center.

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收藏

页码：512 / 518

页数：7

相关论文

共 53 条

[11] OBSERVATIONS OF BROAD HELIUM AND HYDROGEN LINES IN THE VERY CENTER OF THE GALAXY [J].

GEBALLE, TR ;

KRISCIUNAS, K ;

LEE, TJ ;

GATLEY, I ;

WADE, R ;

DUNCAN, WD ;

GARDEN, R ;

BECKLIN, EE .

ASTROPHYSICAL JOURNAL, 1984, 284 (01) :118-125

[12] THE BROAD-LINE REGION AT THE CENTER OF THE GALAXY [J].

GEBALLE, TR ;

WADE, R ;

KRISCIUNAS, K ;

GATLEY, I ;

BIRD, MC .

ASTROPHYSICAL JOURNAL, 1987, 320 (02) :562-569

[13] MAPPING OF INFRARED HELIUM AND HYDROGEN LINE-PROFILES IN THE CENTRAL FEW ARCSECONDS OF THE GALAXY [J].

GEBALLE, TR ;

KRISCIUNAS, K ;

BAILEY, JA ;

WADE, R .

ASTROPHYSICAL JOURNAL, 1991, 370 (02) :L73-L76

[14]

GENZEL R, 1987, ANNU REV ASTRON ASTR, V25, P377

[15] INFRARED-SPECTROSCOPY OF THE SUPERNOVA REMNANT IC-443 [J].

GRAHAM, JR ;

WRIGHT, GS ;

LONGMORE, AJ .

ASTROPHYSICAL JOURNAL, 1987, 313 (02) :847-852

[16] INFRARED-SPECTROSCOPY AND IMAGING OF THE CRAB-NEBULA [J].

GRAHAM, JR ;

WRIGHT, GS ;

LONGMORE, AJ .

ASTROPHYSICAL JOURNAL, 1990, 352 (01) :172-183

[17] BROAD HELIUM EMISSION IN THE GALACTIC-CENTER [J].

HALL, DNB ;

KLEINMANN, SG ;

SCOVILLE, NZ .

ASTROPHYSICAL JOURNAL, 1982, 260 (02) :L53-L57

[18] EVIDENCE FOR LARGE-SCALE WINDS FROM STARBURST GALAXIES .2. AN OPTICAL INVESTIGATION OF POWERFUL FAR-INFRARED GALAXIES [J].

HECKMAN, TM ;

ARMUS, L ;

MILEY, GK .

ASTRONOMICAL JOURNAL, 1987, 93 (02) :276-&

[19] THE CRAB-NEBULA .2. A PHOTO-IONIZATION MODEL ANALYSIS FOR THE FILAMENTS [J].

HENRY, RBC ;

MACALPINE, GM .

ASTROPHYSICAL JOURNAL, 1982, 258 (01) :11-21

[20] SPECTRUM AND TERM SYSTEM OF FEII [J].

JOHANSSON, S .

PHYSICA SCRIPTA, 1978, 18 (04) :217-265

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