搜索结果: 1-15 共查到“天体物理学 O V LINES”相关记录38条 . 查询时间(0.225 秒)
Global Distribution of Fe K alpha Lines in the Galactic Center Region Observed with the Suzaku Satellite
Galaxy: Center—Inter stellar medium— X-ray spectra
2011/7/15
We have surveyed spatial profiles of the Fe K$\alpha$ lines in the Galactic center diffuse X-rays (GCDX), including the transient region from the GCDX to the Galactic ridge X-ray emission (GRXE), with...
The Mid-Infrared High-Ionization Lines from Active Galactic Nuclei and Star-Forming Galaxies
The Mid-Infrared High-Ionization Lines Active Galactic Nuclei Star-Forming Galaxies
2010/11/30
We used Spitzer/IRS spectroscopic data on 426 galaxies including quasars, Seyferts, LINER and HII galaxies to investigate the relationship among the mid-IR emission lines. There is a tight linear corr...
Strong [O III] and [N II] emission lines in globular clusters from photoionized R Corona Borealis star winds
emission lines globular clusters
2010/11/30
The globular cluster X-ray source CXO J033831.8-352604 in NGC 1399 has recently been found to show strong emission lines of [O III] and [N II] in its optical spectrum in addition to ultraluminous X-ra...
Probing Intermediate Mass Black Holes With Optical Emission Lines from Tidally Disrupted White Dwarfs
Probing Intermediate Mass Black Holes Optical Emission Lines
2010/11/30
We calculate the emission line spectrum produced by the debris released when a white dwarf (WD) is tidally disrupted by an intermediate-mass black hole (IMBH; $M\sim 10^{2}-10^{5}\msun$) and we explor...
Estimation of C II and C II* column densities along Galactic sight-lines
ine profiles – ISM clouds – ISM abundances – ultraviolet ISM
2010/11/1
We present interstellar Cii (1334.5323°A) and Cii ∗ (1335.7077°A)column density measurements along 14 Galactic sight-lines. These sight-lines sample a variety of Galactic disk environments and i...
CS Lines Profiles in Hot Cores
astrochemistry—line profiles—methods numerical—stars formation—ISM
2010/11/1
We present a theoretical study of CS line profiles in archetypal hot cores. We provide estimates of line fluxes from the CS(1-0) to the CS(15-14) transitions and present the temporal variation of thes...
Iron lines in model disk spectra of galactic black hole binaries
model disk spectra galactic black hole binaries
2010/11/1
Context. We present angle-dependent, broad-band intensity spectra from accretion disks around black holes of 10 M⊙. In our computations disks are assumed to be slim, which means that the radial advect...
Spectral imaging of the Sagittarius B2 region in multiple 7-mm molecular lines
Galaxy Astrophysics (astro-ph.GA)
2010/10/12
We have undertaken a spectral-line imaging survey of a 6 x 6 arcmin^2 area around Sgr B2 near the centre of the Galaxy, in the range from 30 to 50 GHz, using the Mopra telescope. The spatial resolutio...
High-resolution mapping of the physical conditions in two nearby active galaxies based on 12CO(1-0), (2-1) and (3-2) lines
Galaxy Astrophysics (astro-ph.GA)
2010/10/11
We present a detailed analysis of high resolution observations of the three lowest CO transitions in two nearby active galaxies, NGC4569 and NGC4826. The CO(1-0) and (2-1) lines were observed with the...
The Hanle Effect as a Diagnostic of Magnetic Fields in Stellar Envelopes. V. Thin Lines from Keplerian Disks
Solar and Stellar Astrophysics (astro-ph.SR)
2010/10/10
This paper focuses on the polarized profiles of resonance scattering lines that form in magnetized disks. Optically thin lines from Keplerian planar disks are considered. Model line profiles are calcu...
3D hydrodynamical CO5BOLD model atmospheres of late-type giants: chemical abundances from molecular lines
Solar and Stellar Astrophysics (astro-ph.SR)
2010/10/8
We investigate the influence of convection on the formation of molecular spectral lines in the atmospheres of late-type giants. For this purpose we use the 3D hydrodynamical CO5BOLD and classical 1D L...
Radio Recombination Lines at Decametre Wavelengths: Prospects for the Future
Galaxy Astrophysics (astro-ph.GA) Cosmology and Extragalactic Astrophysics (astro-ph.CO) Instrumentation and Methods for Astrophysics (astro-ph.IM)
2010/10/2
This paper considers the suitability of a number of emerging and future instruments for the study of radio recombination lines (RRLs) at frequencies below 200 MHz. These lines arise only in low-densit...
Spectroscopic Study of ‘CO’ and its Isotopic mm/Submillimeter Lines from Dark Cloud Lynds 183
Radiative transfer—molecular spectral lines—temperature gradient
2010/3/1
We have made spectral line analysis of CO and its isotopic lines from dark cloud Lynds 183 (L183). Our dataset incorporates 12CO(1–– – 0), 13CO(1–– – 0) and 13CO(2–– – 1) lines using NRAO-12m and 12CO...
The Broad Emission Lines in AGN: Hidden Disk Emission
Broad Emission Lines Hidden Disk Emission
2009/7/9
The Broad Emission Lines in AGN: Hidden Disk Emission。
Double- (and Single-) Peaked Emission Lines as Probes of the Structure of the Outer Accretion Disks in AGN
Peaked Emission Lines Probes Outer Accretion Disks
2009/7/9
Double- (and Single-) Peaked Emission Lines as Probes of the Structure of the Outer Accretion Disks in AGN。