首页     开始     To Survive in the Universe    
Inhabited Sky
    News@Sky     天文图片     收集     论坛     Blog New!     常见问题     新闻     登录  

HD 152032


目录

图像

上传图像

DSS Images   Other Images


相关文章

UBV photometry of HD stars in the fields of selected cataclysmic variables.
Not Available

Spectropolarimetry of high-polarization Seyfert 2 galaxies and unified Seyfert theories
Spectropolarimetry was used to study eight high-polarization Seyfert 2galaxies. In four of them (Mrk 3, Mrk 348, Mrk 463E, and NGC 7674),evidence was found for a hidden broad-line region (BLR), visible only inthe polarized flux spectrum. The other four objects, Mrk 78, Mrk 1066,NGC 591, and NGC 7672, may also have hidden BLRs, but at a flux levelbelow the detection threshold. The properties of the hidden BLRs areconsistent with their normal Seyfert 1 nuclei. If all Seyfert 2 galaxiesare in reality Seyfert 1 galaxies in which the nuclei are hidden fromdirect view and seen only in scattered light, then one might expect thatmany Seyfert 2 galaxies have polarizations of their featureless continuagreater than 50 percent. Such high polarization are not seen, perhapsindicating a particular geometry, in which nearly edge-on obscuring torialso block light from the scattering region. This model predicts that,in edge-on cases, little or no featureless continua in the spectra ofthe objects will be detected. Arguments are presented that objects withhigh luminosity, such as QSOs, have geometrically thin tori and henceare much less likely to have obscured continua and BLRs.

New UBVRI photometry for 900 supergiants
A description is presented of the results obtained in connection with asystematic program of supergiant photometry on the Johnson UBVRI system.During the eight years after the start of the program, almost 1000 starshave been observed, about 400 three or more times each. The originalselection of stars used the spectral type catalog of Jaschek et al.(1964) to choose supergiants. Since observations were possible from bothChile and Canada, no declination limits were imposed, and no particularselection criteria were imposed other than to eliminate carbon stars.These are so red as to require enormous extrapolations of thetransformation equations.

Photoelectric photometry of selected AG stars in the 25D to 30D zone.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1968AJ.....73..187B&db_key=AST

提交文章


相关链接

  • - 没有找到链接 -
提交链接


下列团体成员


观测天体数据

星座:武仙座
右阿森松:16h50m04.08s
赤纬:+26°12'32.9"
视星:7.28
距离:244.499 天文距离
右阿森松适当运动:13.7
赤纬适当运动:7
B-T magnitude:8.477
V-T magnitude:7.379

目录:
适当名称   (Edit)
HD 1989HD 152032
TYCHO-2 2000TYC 2062-606-1
USNO-A2.0USNO-A2 1125-07837542
HIPHIP 82385

→ 要求更多目录从vizier