- Mapping the 13CO/C18O abundance ratio in the massive star ...🔍
- Column density maps of 13 CO 🔍
- VizieR Online Data Catalog🔍
- The H 2 column density map estimated from the 13 CO emission ...🔍
- 13CO and C18O J = 2–1 mapping of the environment of the Class 0 ...🔍
- THE “TRUE” COLUMN DENSITY DISTRIBUTION IN STAR ...🔍
- [0806.3441] The "True" Column Density Distribution in Star|Forming ...🔍
- 12CO/13CO ratio in turbulent molecular clouds🔍
Column density maps of 13 CO
Mapping the 13CO/C18O abundance ratio in the massive star ...
The distribution of column densities and X13/18 throughout the extension of the analyzed molecular cloud was studied based on local thermal equilibrium (LTE) ...
Column density maps of 13 CO (frame a) and C 18 ... - ResearchGate
097+03.270. Diagnosed with simultaneous ¹² CO, ¹³ CO, and C ¹⁸ O line observations, the region is found to host two distinct and elongated filaments having ...
VizieR Online Data Catalog: Column density maps for MWISP 13 ...
The 12 CO, 13 CO, and C 18 OJ=1-0 spectra are obtained simultaneously using the nine-beam Superconducting Spectroscopic Array Receiver (SSAR) equipped on the ...
The H 2 column density map estimated from the 13 CO emission ...
Download scientific diagram | The H 2 column density map estimated from the 13 CO emission. The dotted black lines and the red dashed lines represent the ...
13CO and C18O J = 2–1 mapping of the environment of the Class 0 ...
The 13CO and C18O emission seen at ~1.3 km s-1 is concentrated into a single clump-like feature at the eastern part of the map. The peak H2 column density ...
THE “TRUE” COLUMN DENSITY DISTRIBUTION IN STAR ...
CO isotopologue mapping to study column density in molecular clouds, and it ... All maps and graphs relating to 13CO column density distributions in this pa-.
[0806.3441] The "True" Column Density Distribution in Star-Forming ...
... column density in molecular clouds: extinction mapping (NIR); thermal emission mapping (FIR); and mapping the intensity of CO isotopologues.
12CO/13CO ratio in turbulent molecular clouds - Oxford Academic
The 13CO column density is then related to that of 12CO by a uniform isotopic ratio. A similar approximation is frequently used when deriving 13CO emission maps ...
AST/RO 13CO(J = 2!1) AND 12CO(J = 4!3) MAPPING OF ...
Overall, our c2d sample of southern molecular cores has a range of properties ( line width, column density, size, mass, embedded stars) similar to those of past ...
Full-disc 13CO(1–0) mapping across nearby galaxies of the ...
Molecular gas mass surface densities and H2 column densities are commonly derived using the 12CO(1–0) line as a proxy for H2 and a CO-to-H2 conversion factor.
A COMPARISON OF 13CO AND CS EMISSION IN THE INNER ...
13CO integrated intensity maps of the low-density, quiescent molecular ... In regions of higher column density, 13CO becomes optically thick and saturates.
CO-to-H2 Conversion and Spectral Column Density in Molecular ...
2 from 12CO (J=1-0) line brightness. In figures 4(a-c) we plot calculated SCD12X against SCD13L in individual cells in a channel map of M16 ...
Even though we have used 12CO data to estimate excitation temperatures, and we have corrected for opacity, the 13CO maps seem unable to give ...
arXiv:astro-ph/0010394v1 19 Oct 2000
... CO column density N(CO) (calculated assuming a CO/13CO abundance ra- tio of 50) as a function of 13CO column density for each model position. Errorbars ...
Astronomy & Astrophysics HD 112 µm in absorption and extreme ...
We first obtained 12CO and 13CO line maps at the CSO. 10-m telescope ... of the CO column density) gives an average C18O col- umn density in the LWS ...
Lecture 2: Molecular Clouds: Galactic Context and Observational ...
Calculating of CO Column Densities ... This cannot be used to map accurately column density, but is reasonable for finding masses over molecular clouds.
Column density maps for MWISP ^13^CO mol. clouds : J/ApJS/262/16
Abstract:We have obtained column density maps for an unbiased sample of 120 molecular clouds in the third quadrant of the Milky Way midplane ...
The column density structure of Orion A depicted by N-PDF
We present channel maps of the 12CO emission in Figure 4, and those of 13CO emission in Figure B.1, to investigate which velocity components contribute to the ...
On the caveats of tracing molecular gas with CO emission
the 13CO column density measurement, all cloud mass inference methods recover the CO-bright H2 mass within a factor of 2 uncertainty, if the metallicity is ...
CO Column Density and Extinction in the Chamaeleon II–III Dark ...
1. (a) Total-intensity map of the 13CO (J = 1–0) in the Cha II–III molecular-cloud complex. The contours ...