目录
图像
上传图像
DSS Images Other Images
相关文章
Near infrared low-resolution spectra of 7 Be stars and AG CAR
We present and discuss lambda 6470-8780 spectra of 7 poorly-studied Bestars and of one Luminous Blue Variable (AG Car), and give equivalentwidths and radial velocities of selected spectral lines. Based onobservations obtained at Las Campanas Observatory and at the EuropeanSouthern Observatory in Chile
| Observations of southern emission-line stars
A catalog of 1929 stars showing H-alpha emission on photographic platesis presented which covers the entire southern sky south of declination-25 deg to a red limiting magnitude of about 11.0. The catalog providesprevious designations of known emission-line stars equatorial (1900) andgalactic coordinates, visual and photographic magnitudes, H-alphaemission parameters, spectral types, and notes on unusual spectralfeatures. The objects listed include 16 M stars, 25 S stars, 37 carbonstars, 20 symbiotic stars, 40 confirmed or suspected T Tauri stars, 16novae, 14 planetary nebulae, 11 P Cygni stars, 9 Bep stars, 87 confirmedor suspected Wolf-Rayet stars, and 26 'peculiar' stars. Two new Tassociations are discovered, one in Lupus and one in Chamaeleon. Objectswith variations in continuum or H-alpha intensity are noted, and thedistribution by spectral type is analyzed. It is found that the skydistribution of these emission-line stars shows significantconcentrations in the region of the small Sagittarius cloud and in theCarina region.
|
提交文章
相关链接
提交链接
下列团体成员
|
观测天体数据
目录:
|
