OBSERVATIONS OF THE IR RECOMBINATION LINE EMISSION FROM MASSIVE YOUNG STELLAR OBJECTS

被引：55

作者：

BUNN, JC ^{[1
]}

HOARE, MG ^{[1
]}

DREW, JE ^{[1
]}

机构：

[1] MAX PLANCK INST ASTRON,D-69117 HEIDELBERG,GERMANY

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1995年 / 272卷 / 02期

关键词：

LINE; PROFILES; STARS; EARLY-TYPE; FORMATION; MASS-LOSS; ISM; JETS AND OUTFLOWS; INFRARED;

D O I：

10.1093/mnras/272.2.346

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new, high-resolution observations of the infrared H I emission lines of massive YSOs. The widths of the Br alpha, Br gamma and Pf gamma lines indicate outflowing material with velocities of 100-200 km s(-1) for all the sources observed. We discuss the morphology of the line profiles and examine the velocity-resolved line ratios. Three of the sources appear to be dominated by an expanding optically thick stellar wind, whilst BN shows some evidence for an additional narrow, more optically thin component, as we found previously for S106IR. The object M17 SW IRS1 has line profiles more like those of a Herbig Be star.

引用

页码：346 / 354

页数：9

共 28 条

[1] ON THE ORIGIN OF THE HI LINE EMISSION ASSOCIATED WITH MASSIVE YOUNG STELLAR OBJECTS
BUNN, JC
DREW, JE
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 255 (03) : 449 - 459
[2] BUNN JC, 1992, THESIS U OXFORD
[3] FAR-INFRARED SOURCES IN CYGNUS-X - AN EXTENDED EMISSION COMPLEX AT DR-21 AND UNRESOLVED SOURCES AT S106 AND ON 2
CAMPBELL, MF
HOFFMANN, WF
THRONSON, HA
NILES, D
NAWFEL, R
HAWRYLYCZ, M
[J]. ASTROPHYSICAL JOURNAL, 1982, 261 (02) : 550 - 557
[4] CONSTRAINTS ON THE OUTFLOW IN S106IR FROM HE-I 2.058-MU-M ABSORPTION-LINE AND H-I EMISSION-LINE PROFILES
DREW, JE
BUNN, JC
HOARE, MG
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1993, 265 (01) : 12 - 20
[5] MOLECULAR GAS IN THE W33 REGION
GOLDSMITH, PF
MAO, XJ
[J]. ASTROPHYSICAL JOURNAL, 1983, 265 (02) : 791 - 802
[6] GREENE TP, 1994, ASTROPHYS SPACE SC L, V190, P453
[7] HALL DNB, 1978, APJ, V226, pL47
[8] FAR-INFRARED EMISSION FROM COMPACT SOURCES IN NGC 2264 AND ROSETTE NEBULA
HARVEY, PM
CAMPBELL, MF
HOFFMANN, WF
[J]. ASTROPHYSICAL JOURNAL, 1977, 215 (01) : 151 - 154
[9] INFRARED OBSERVATIONS OF NGC-2071(IRS) AND AFGL-490 - 2 LOW-LUMINOSITY YOUNG STARS
HARVEY, PM
CAMPBELL, MF
HOFFMANN, WF
THRONSON, HA
GATLEY, I
[J]. ASTROPHYSICAL JOURNAL, 1979, 229 (03) : 990 - 993
[10] HOFLICH P, 1987, ASTRON ASTROPHYS, V185, P107

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