The Milky Way in Molecular Clouds: A New Complete CO Survey

  title={The Milky Way in Molecular Clouds: A New Complete CO Survey},
  author={Thomas M. Dame and D. Hartmann and Patrick Thaddeus},
  journal={The Astrophysical Journal},
  pages={792 - 813}
New large-scale CO surveys of the first and second Galactic quadrants and the nearby molecular cloud complexes in Orion and Taurus, obtained with the CfA 1.2 m telescope, have been combined with 31 other surveys obtained over the past two decades with that instrument and a similar telescope on Cerro Tololo in Chile, to produce a new composite CO survey of the entire Milky Way. The survey consists of 488,000 spectra that Nyquist or beamwidth ( °) sample the entire Galactic plane over a strip 4… 


The all-Galaxy CO survey of Dame et al. is by far the most uniform, large-scale Galactic CO survey. Using a dendrogram-based decomposition of this survey, we present a catalog of 1064 massive

Natal molecular cloud of SNR Kes 41. Complete characterisation

Using high-resolution data of the 12CO and 13CO (J = 1–0) line emission from the Mopra Southern Galactic Plane CO Survey in conjunction with neutral hydrogen observations from the Southern Galactic

A Large-scale Survey of CO and Its Isotopologues toward the Rosette Molecular Cloud

Using the PMO-13.7 m millimeter telescope at Delingha in China, we have conducted a large-scale simultaneous survey of 12CO, 13CO, and C18O J = 1 − 0 emission toward the Rosette molecular cloud (RMC)

A CO Survey of the Entire Northern Sky

We present a very large extension of the Galactic plane CO survey of Dame et al. to the entire northern sky (δ > −17°). The extension was carried out with the same telescope as was used for the plane


We present a new catalog of spectrophotometric distances and line of sight systemic velocities to 103 H ii regions between 90 ° ≤ ℓ ≤ 195 ° ?> (longitude quadrants II and part of III). Two new

A High-Latitude Molecular Structure in Pegasus-Pisces

We detected CO emission from a shell-like or ringlike dust structure approximately 20° across centered near Galactic coordinates (l = 105°, b = -45°). This region was also observed in CO by Yamamoto


This study presents a catalog of 8107 molecular clouds that covers the entire Galactic plane and includes 98% of the 12CO emission observed within . The catalog was produced using a hierarchical

A Herschel (C II) Galactic plane survey II. CO-dark H2 in clouds

Context. H i and CO large scale surveys of the Milky Way trace the diffuse atomic clouds and the dense shielded regions of molecular hydrogen clouds, respectively. However, until recently, we have

Comparative Analysis of Molecular Clouds in M31, M33, and the Milky Way

We present BIMA observations of a 2′ field in the northeastern spiral arm of M31. In this region we find six giant molecular clouds (GMCs) that have a mean diameter of 57 ± 13 pc, a mean velocity

ATLASGAL - Ammonia observations towards the southern Galactic Plane

The initial conditions of molecular clumps in which high-mass stars form are poorly understood. In particular, a more detailed study of the earliest evolutionary phases is needed. The APEX Telescope



A deep CO survey of molecular clouds in the southern Milky Way

The complete set of observations from the first out-of-plane CO survey of the southern Milky Way is presented. A spatial map, obtained by integrating the CO emission over the entire observed spectral

A CO Survey of Giant Molecular Clouds near Cassiopeia A and NGC 7538

With the 1.2 m telescope at the Center for Astrophysics we have undertaken a survey of the J = 1 → 0 CO line toward the conspicuous complex of giant molecular clouds (GMCs) in the Perseus arm in the

A wide-latitude CO survey of molecular clouds in the northern Milky Way

It is now well established that molecular clouds are an important part of the interstellar medium, containing much or most of the dense, cold component of the gas, and producing the massive stars and

The Columbia CO survey of molecular clouds in the first galactic quadrant

A systematic, unbiased survey of CO emission from much of the first Galactic quadrant has been completed using the Columbia-Goddard millimeter wave telescope. The velocity resolution is 1.3 km/s and

A CO survey of the dark nebulae in Perseus, Taurus, and Auriga

A new SIS receiver with extremely low noise temperature, used on the Columbia 1.2-m telescope has permitted mapping CO rapidly with full sampling. Results are presented of a survey for which the

A Spatially Complete 13CO J = 1-0 Survey of the Orion A Cloud

We present the results of new 13CO J = 1–0 observations of the Orion A molecular cloud made with two 4 m telescopes at Nagoya University. The area observed, corresponding to l ∼ 208°–215° and b ∼

The Five College Radio Astronomy Observatory CO Survey of the Outer Galaxy

Images from the FCRAO CO Survey of the Outer Galaxy and a description of the calibration and processing of the data are presented. The survey is comprised of 1,696,80012CO J = 1-0 spectra sampled

A Composite CO survey of the entire Milky Way

Large-scale CO surveys of the entire Galactic plane and specific nearby clouds have been combined to produce a panorama of the entire Milky Way in molecular clouds at an angular resolution of 1/2°.

The Polaris Flare - Extensive molecular gas near the north celestial pole

CO observations with the CfA 1.2 m telescope reveal an extensive molecular cloud at high Galactiic latitude in the direction of the north celestial pole. The object, the Polaris Flare, covers 80

A Survey of High-Latitude Molecular Gas in the Southern Galactic Hemisphere

To determine the distribution of molecular gas at high Galactic latitudes, nearly one-half of the southern Galactic hemisphere at b ≤ -30° was surveyed in the CO (1-0) transition at 115 GHz. The