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X-Ray Absorption Line Spectroscopy of the Galactic Hot Interstellar Medium
Cyg X–2 V801 Ara
2014/12/24
We present an X-ray absorption line spectroscopic study of the large-scale hot interstellar medium (HISM) in the Galaxy. We detect Ne IX Kα absorption lines in the Chandra grating spectra of seven Gal...
X-Ray Absorption Spectroscopy of the Multiphase Interstellar Medium: Oxygen and Neon Abundances
ISM 4U 1820–303
2014/12/24
X-ray absorption spectroscopy provides a powerful tool in determining the metal abundances in various phases of the interstellar medium (ISM). We present a case study of the sight line toward 4U 1820-...
Chandra Detection of Fe XVII in Absorption: Iron Abundance in the Hot Gaseous Interstellar Medium
4U 1820–303 abundances
2014/12/24
The iron depletion level and the gas-phase iron abundance in the hot (~106 K) interstellar medium (ISM) are critical to our understanding of its energy balance as well as the thermal sputtering, cooli...
An Optical Study of Stellar and Interstellar Environments of Seven Luminous and Ultraluminous X-Ray Sources
M81 NGC 1313
2014/12/24
We have studied the stellar and interstellar environments of two luminous X-ray sources and five ultraluminous X-ray sources (ULXs) in order to gain insight into their nature. Archival Hubble Space Te...
Interstellar Mystery Solved by Supercomputer Simulations
Interstellar Mystery Solved Supercomputer Simulations
2014/12/30
An interstellar mystery of why stars form has been solved thanks to the most realistic supercomputer simulations of galaxies yet made.Theoretical astrophysicist Philip Hopkins of the California Instit...
Turbulence in the interstellar medium
Many variables Spectral imaging Observation The interstellar medium. The star gas
2014/12/9
The multivariate technique of principal component analysis (PCA) is a powerful statistical tool with which to describe spectral line imaging observations of the molecular interstellar medium. In parti...
Faint Extended OH Emission from the Local Interstellar Medium in the Direction l \approx 108\circ, b \approx 5\circ
OH Emission Local Interstellar Medium Cosmology and Extragalactic Astrophysics
2012/2/21
We have mapped faint 1667 OH line emission (TA \approx 20 - 40 mK in our \approx 30' beam) along many lines of sight in the Galaxy covering an area of \approx 4\circ \times 4\circ in the general direc...
The neutral counterpart of an uncatalogued nebula and a probable interstellar bubble around wr 53 in the centaurus region
interstellar centaurus region wr 53
2009/7/9
The neutral counterpart of an uncatalogued nebula and a probable interstellar bubble around wr 53 in the centaurus region。
Getting the red out：a stellar approach to determining spatial variations of interstellar dust
spatial variations interstellar dust
2009/6/8
Getting the red out：a stellar approach to determining spatial variations of interstellar dust。
The Science with the Interstellar Heliopause Probe
Interstellar Heliopause Probe termination shock heliosheath
2009/5/27
After the exciting in-situ observations of the termination shock and the entry of the Voyager 1 spacecraft in the heliosheath, there is a growing awareness of the significance of the physics of the ou...