New members of the massive stellar population in Cygnus

@article{Comern2012NewMO,
  title={New members of the massive stellar population in Cygnus},
  author={Fernando Comer{\'o}n and Anna Pasquali},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={543}
}
Context. The Cygnus OB2 association and its surroundings display the richest collection of massive stars in our nearby Galactic environment and a wealth of signposts of the interaction between these stars and the interstellar gas. Aims. We perform a magnitude-limited, homogeneous census of O and early B-type stars with accurate spectral classifications in the blue, in a 6 ◦ × 4 ◦ region centered on Cygnus OB2 that includes most of the Cygnus X complex, a sizeable fraction of the adjacent Cygnus… 
The Massive Star Population of Cygnus OB2
We have compiled a significantly updated and comprehensive census of massive stars in the nearby Cygnus OB2 association by gathering and homogenising data from across the literature. The census
Red supergiants and the past of Cygnus OB2
Context. Red supergiants are the evolved descendants of massive stars with initial masses between 7 and 40 M⊙. Their brightness makes them easily detectable in the near infrared, making them useful
On the nature of high reddening of Cygnus OB2 #12 hypergiant
To explain the nature of the high reddening (Av~10 mag) towards one of the most luminous stars in the Galaxy - Cyg OB2 #12 (B5 Ia-0), also known as MT304, we carried out spectro-photometric
A distant OB association around RAFGL 5475
Context. Observations of the galactic disk at mid-infrared and longer wavelengths reveal a wealth of structures indicating the existence of complexes of recent massive star formation. However, little
The Massive Stellar Population of W49: A Spectroscopic Survey
Massive stars form on different scales ranging from large, dispersed OB associations to compact, dense starburst clusters. The complex structure of regions of massive star formation, and the involved
COBRaS: The e-MERLIN 21 cm Legacy survey of Cygnus OB2
The role of massive stars is central to an understanding of galactic ecology. It is important to establish the details of how massive stars provide radiative, chemical, and mechanical feedback in
The Dependence of Protostellar Luminosity on Environment in the Cygnus-X Star-Forming Complex
The Cygnus-X star-forming complex is one of the most active regions of low and high mass star formation within 2 kpc of the Sun. Using mid-infrared photometry from the IRAC and MIPS Spitzer Cygnus-X
Oxygen and silicon abundances in Cygnus OB2
Context. Cygnus OB2 is a rich OB association in the Galaxy located at only ∼1.4 kpc from us which has experienced intense star formation in the last 20–25 Myr. Its stellar population shows a
Revisiting the Cygnus OB associations
OB associations play an important role in Galactic evolution, though their origins and dynamics remain poorly studied, with only a small number of systems analysed in detail. In this paper, we
New members of Cygnus OB2 from Gaia DR2
Due to the high quality of Gaia DR2 stellar parallaxes and proper motions, we can study the Cygnus OB2 region up to G = 17.5 mag in circular region centred at (l, b) = (79.8°, +0.8°) of radius 1°.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 71 REFERENCES
On the massive star contents of Cygnus OB2
We present a near-infrared spectroscopic survey of a large area centered on the Cygnus OB2 association aimed at constraining its massive star contents. Our goal is to establish a nearly complete list
New very massive stars in Cygnus OB2
Context. The compact association Cygnus OB2 is known to contain a large population of massive stars, but its total mass is currently a matter of debate. While recent surveys have uncovered large
The outskirts of Cygnus OB2
Context. Cygnus OB2 is one of the richest OB associations in the local Galaxy, and is located in a vast complex containing several other associations, clusters, molecular clouds, and HII regions.
Predicted gamma-ray line emission from the Cygnus complex
Context. The Cygnus region harbours a huge complex of massive stars at a distance of 1.0–2.0 kpc from us. About 170 O stars are distributed over several OB associations, among which the Cyg OB2
OB STARS AND STELLAR BOW SHOCKS IN CYGNUS-X: A NOVEL LABORATORY ESTIMATING STELLAR MASS LOSS RATES
We use mid-infrared images from the Spitzer Space Telescope Cygnus X Legacy Survey to search for stellar bow shocks (BSs), a signature of early-type 'runaway' stars with high space velocities. We
Unveiling the Cygnus OB2 stellar population with Chandra
Aims. The aim of this work is to identify the so far unknown low mass stellar population of the∼ 2Myr old Cygnus OB2 star forming region, and to investigate the X-ray and near-IR stellar properties
The ionizing star of the North America and Pelican nebulae
We present the results of a search for the ionizing star of the North America (NGC 7000) and the Pelican (IC 5070) nebulae complex. The application of adequate selection criteria to the 2MASS JHKS
The massive star-forming region Cygnus OB2. I : Chandra catalog of association members
We present a catalog of 1696 X-ray sources detected in the massive star-forming region (SFR) Cygnus OB2 and extracted from two archival Chandra observations of the center of the region. A deep source
A Study of Cygnus OB2: Pointing the Way toward Finding Our Galaxy?s Super-Star Clusters
New optical MK classification spectra have been obtained for 14 OB star candidates identified by Comeron et al. and presumed to be possible members of the Cyg OB2 cluster as recently described by
Massive stars in Cyg OB2
The stellar content of Cyg OB2 has been investigated using CCD photometry and spectroscopy. The intrinsically bluest stars have been isolated for spectroscopy by using a reddening-free parameter. The
...
1
2
3
4
5
...