Fast search for circumstellar atomic hydrogen
WebFAST Search for Circumstellar Atomic Hydrogen. I. The Young Planetary Nebula IC4997 Xu-Jia Ouyang1, Yong Zhang1,2,3, Albert Zijlstra3,4, Chuan-Peng Zhang5,6, Jun-ichi Nakashima1,2, and Quentin A ... WebThe total mass of atomic hydrogen is ~ 6.5 10^{-3} solar mass which, within a factor 2, agrees with the estimate obtained from IRAS data at 60 microns. We report the detection of the HI line at 21 cm from the circumstellar shell around the AGB star X Her using the position-switching technique with the Nancay Radio Telescope.
Fast search for circumstellar atomic hydrogen
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WebMar 5, 2024 · An in-depth investigation of 11 pulsars discovered by FAST.pdf: 50: The atomic gas of star-forming galaxies at z ∼ 0.05 as revealed by the Five-hundred-meter Aperture Spherical Radio Telescope: ... FAST Search for Circumstellar Atomic Hydrogen. I. The Young Planetary Nebula IC 4997: 2024, The Astrophysical Journal, … http://www.zhiqihuang.top/astro/mypub.php?netid=zhangyong5
WebMay 12, 2024 · Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Guizhou, China, we detect the 21cm neutral atomic hydrogen absorption in the young … WebFeb 14, 2013 · Long-slit spectroscopy, used in previous studies of Balmer-dominated shocks (), cumulatively measures the Hα emission emanating from regions much larger than the characteristic length scale: the mean free path for interactions between hydrogen atoms and electrons or ions, L mfp ∼ 1/nσ ce (with n being the preshock number density and σ …
WebFAST Search for Circumstellar Atomic Hydrogen. I. The Young Planetary Nebula IC 4997. The Astrophysical Journal ... Circumstellar CO in metal-poor stellar winds: the highly irradiated globular cluster star 47 Tucanae V3 ... (HerPlaNS): Hydrogen Recombination Laser Lines in Mz 3. Royal Astronomical Society. Monthly Notices 2024-07-11 ... WebFAST search for circumstellar atomic hydrogen–I: the young planetary nebula IC 4997. / Ouyang, Xu-Jia ; Zhang, Yong; Zijlstra, Albert et al. In: The Astrophysical Journal, …
WebNov 15, 2024 · We computed the equilibrium distributions of protons and H fast atoms, finding that below ≈ 10 4 eV, less than 10% of (non-molecular) hydrogen is in the form of H + (see Fig. A.2 ), so that the dissociation by H fast …
WebFAST Search for Circumstellar Atomic Hydrogen. I. The Young Planetary Nebula IC 4997 The Astrophysical Journal 2024-07-01 Journal article DOI: 10.3847/1538-4357/ac6fdb Contributors : Xu-Jia Ouyang; Yong Zhang; Albert Zijlstra; Chuan-Peng Zhang; Jun-ichi Nakashima; Quentin A Parker Show more detail Source : Crossref button onceWebSearches for atomic hydrogen at 21 cm from the outflows from red giants have generally been unsuccessful (Zuckerman, Terzian and Silverglate 1980; Knapp and Bowers 1983). ... circumstellar outflows are probably not larger than 0.1 m; otherwise the extinction would not be a strong function of wavelength. 2. Polarization of the optical (shawl ... button on chair leatherWebTo fill this gap, we present a combined crossed molecular beam, high-level ab initio, and astrochemical modeling investigation on the formation of (hydrogenated) circumstellar … button onclick addlistenerWebFAST search for circumstellar atomic hydrogen–I: the young planetary nebula IC 4997 Ouyang, X-J., Zhang, Y., Zijlstra, A., Zhang, C. P., Nakashima, J. I. & Parker, Q. A., 12 May 2024, (Accepted/In press) In: The Astrophysical Journal. Research output: Contribution to journal › Article › peer-review Money Supply Loss Credit button onclick async functionWebFAST search for circumstellar atomic hydrogen–I: the young planetary nebula IC 4997 Authors: Albert Zijlstra And 5 others Research output: Contribution to journal › Article › … cedar tree originWebMay 2, 2024 · FAST Search for Circumstellar Atomic Hydrogen. I. The Young Planetary Nebula IC 4997 Xu-Jia Ouyang, Yong Zhang, A. Zijlstra, Chuan-peng Zhang, J. Nakashima, Q. Parker Physics The Astrophysical Journal 2024 button onclick alert in htmlWebfraction of circumstellar material that is hidden by Galactic contamination within our band or that is present on angular scales too large to be detected by the VLA. It appears that the … cedartreepests.com