THE FU ORIONIS TYPE SPECTRUM AND BIPOLAR OUTFLOW OF PARSAMYAN-21

被引：32

作者：

STAUDE, HJ

NECKEL, T

机构：

[1] Max-Planck-Inst. für Astronomie, W-6900 Heidelberg

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 400卷 / 02期

关键词：

ISM; INDIVIDUAL; (PARSAMYAN; 21); JETS AND OUTFLOWS; STARS; PRE-MAIN-SEQUENCE;

D O I：

10.1086/172018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present CCD images in the red and long-slit spectrograms of the young cometary nebula Parsamyan 21. The spectroscopic and far-infrared properties of its illuminating source are characteristic for an FU Orionis star. The spectrum is of type F5Iab with broad absorption lines and a broad, blueshifted P Cygni profile of Halpha, reaching a velocity of -600 km s-1 at the blue edge of its absorption component. The star coincides with a cold IRAS source and is associated with a short bipolar Herbig-Haro outflow oriented along the axis of symmetry of the cometary nebula. The image of the central source is nonstellar (FWHM = 1.20") due to scattering by circumstellar dust.

引用

页码：556 / &

共 31 条

[11] THE RING-SHAPED NEBULAE AROUND FU ORIONIS STARS [J].