搜索结果: 1-12 共查到“天文学 helium”相关记录12条 . 查询时间(0.078 秒)
Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis
solar wind depth profile helium NASA Genesis mission post-ionization
2017/4/10
The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains
the physics of ion-solid interactions involving the solar wind. Thus, they pro...
Iron and helium emission lines in classical T Tauri stars
Emissions Molecular cloud Emissions High resolution Echelle spectrum The center of mass velocity
2014/12/9
Results are presented for the He emission in 31 CTTS from the Taurus-Auriga molecular cloud spanning two orders of magnitude in the mass accretion rate, and for the Fe emission in DR Tau, based on a s...
The extraordinary complex magnetic field of the helium-strong star HD 37776
The extraordinary complex magnetic field the helium-strong star HD 37776
2011/1/11
The early-type chemically peculiar stars often show strong magnetic fields on their surfaces. These magnetic topologies are organized on large scales and are believed to be close to an oblique dipole ...
The helium and heavy elements enrichment of the galactic disk
The helium galactic disk elements enrichment
2009/7/10
The helium and heavy elements enrichment of the galactic disk。
V445 Puppis, a first identified helium nova。
Late Helium Flash in V605 AQL：PNE Evolution and Shell Formation in Quick Motion
Late Helium Flash V605 AQL Shell Formation
2009/6/15
Late Helium Flash in V605 AQL：PNE Evolution and Shell Formation in Quick Motion。
A new determination of the primordial helium abundance
Testing the Creation of the Universe：The Primordial Helium Abundance
Universe Primordial Helium
2009/6/9
Testing the Creation of the Universe：The Primordial Helium Abundance。
Photoionization Models of Metal-poor Extragalactic H o Regions And the Primordial Helium Abundance
Photoionization Primordial Helium Abundance Metal-poor Extragalactic H o Regions
2009/6/9
Photoionization Models of Metal-poor Extragalactic H o Regions And the Primordial Helium Abundance。
Primordial helium abundance determinations
Primordial helium nuclear reactions nucleosynthesis
2009/6/8
Primordial helium abundance determinations。
Oxygen and helium abundances in galactic h II regions：abundance gradients
h II regions Oxygen helium
2009/6/5
Oxygen and helium abundances in galactic h II regions：abundance gradients。
Error estimates for emission lines in the hydrogen and helium isosequences
emission lines helium isosequences hydrogen isosequences
2009/6/4
Error estimates for emission lines in the hydrogen and helium isosequences。