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相关论文: Filamentary structures of ionized gas in Cygnus X

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Aims. We investigate the role of filaments in high-mass star formation, whether gas flows from large to small scales along them, and what their properties might reveal about the region they are found in. Methods. The Max Planck IRAM…

Deep Halpha+[N II] CCD images have been obtained in the area of the Pegasus Constellation. The resulting mosaic covers an extent of ~7.5 degr x ~8.5 degr and filamentary and diffuse emission is discovered. Several long filaments (up to ~1…

天体物理学 · 物理学 2009-11-07 Panayotis Boumis , Fotis Mavromatakis , Euthimios V. Paleologou , Werner Becker

Filamentary structures are widely observed in molecular clouds, yet most filament observations are biased toward case studies and small samples; a uniform census within a single giant molecular cloud is still missing. We do a complete…

星系天体物理 · 物理学 2026-03-18 Yingxi Li , Keping Qiu

Radiative feedback from massive stars can potentially trigger star formation in the surrounding molecular gas. Inspired by the case of radiatively driven implosion in M16 or Eagle Nebula, we analyze a similar case of star formation observed…

太阳与恒星天体物理 · 物理学 2018-09-12 Soumen Deb , Roland Kothes , Erik Rosolowsky

The Cygnus X region is one of the most nearby massive star forming regions within our Galaxy, recognised by prominent emission throughout the entire electromagnetic spectrum, from radio to gamma-ray waves. This paper reviews our current…

天体物理学 · 物理学 2007-05-23 Jürgen Knödlseder

Cygnus X is one of the closest and most active high-mass star-forming regions in our Galaxy, making it one of the best laboratories for studying massive star formation. As part of the GLOSTAR Galactic plane survey, we performed large scale…

The Cygnus-X complex is a massive, nearby (1.4 kpc) star-forming region with several OB associations. As part of the Cygnus Allscale Survey of Chemistry and Dynamical Environments (CASCADE) program, we carried out 3.6 millimeter (mm)…

The detection of 1.809 MeV gamma-ray line emission from the Cygnus X complex by the COMPTEL telescope is one of the most convincing proves of massive star nucleosynthesis in our Galaxy. The Cygnus X complex is an extremely active nearby…

天体物理学 · 物理学 2007-05-23 J. Knodlseder , M. Cervino , D. Schaerer , P. von Ballmoos , G. Meynet

The Cygnus region harbours a huge complex of massive stars at a distance of 1.0-2.0kpc from us. About 170 O stars are distributed over several OB associations, among which the Cyg OB2 cluster is by far the largest with about 100-120 O…

高能天体物理现象 · 物理学 2010-01-12 Pierrick Martin , Jürgen Knödlseder , Roland Diehl , Georges Meynet

(abridged) Within the Orion A molecular cloud, the integral-shaped filament (ISF) is a prominent, degree-long structure of dense gas and dust, with clear signs of recent and on-going high-mass star formation. We used the ArTeMiS bolometer…

We explore the morphological features and star formation activities of [OII] emitters in the COSMOS UltraDeep field at $z \sim 1.5$ using JWST NIRCam data from the COSMOS-Web survey and Subaru Hyper Suprime-Cam. We also report the discovery…

星系天体物理 · 物理学 2024-03-13 Ronaldo Laishram , Tadayuki Kodama , Takahiro Morishita , Andreas Faisst , Yusei Koyama , Naoaki Yamamoto

A multi-wavelength investigation of the star forming complex IRAS 20286+4105, located in the Cygnus-X region, is presented here. Near-infrared K-band data is used to revisit the cluster / stellar group identified in previous studies. The…

太阳与恒星天体物理 · 物理学 2016-11-10 Varsha R , S. R. Das , A. Tej , S. Vig , S. K. Ghosh , D. K. Ojha

The Cygnus region hosts a giant molecular-cloud complex which actively forms massive stars. Interactions of cosmic rays with interstellar gas and radiation fields make it shine at gamma-ray energies. Several gamma-ray pulsars and other…

高能天体物理现象 · 物理学 2012-08-27 the Fermi LAT Collaboration

We present 1420 MHz (lambda=21cm) observations of polarized emission from an area of 117 degree square in the Galactic plane in Cygnus, covering 82 < l < 95, -3.5 < b < +5.5, a complex region where the line of sight is directed nearly along…

天体物理学 · 物理学 2009-11-07 B. Uyaniker , T. L. Landecker , A. D. Gray , R. Kothes

Context: While star formation on large molecular cloud scales and on small core and disk scales has been investigated intensely over the past decades, the connection of the large-scale interstellar material with the densest small-scale…

We present Plateau de Bure interferometer observations obtained in continuum at 1.3 and 3.5 mm towards the six most massive and young (IR-quiet) dense cores in Cygnus X. Located at only 1.7 kpc, the Cygnus X region offers the opportunity of…

星系天体物理 · 物理学 2015-05-14 S. Bontemps , F. Motte , T. Csengeri , N. Schneider

Filaments are a ubiquitous morphological feature of the molecular interstellar medium and are identified as sites of star formation. In recent years, more than 100 large-scale filaments (with a length $>10$\,pc) have been observed in the…

The COMPTEL observations of the diffuse galactic 1.809 MeV emission attributed to the radioactive decay of 26Al have confirmed the diffuse nature of this interstellar emission line. One of the most significant features of the reconstructed…

天体物理学 · 物理学 2007-05-23 S. Plueschke , M. Cervino , R. Diehl , K. Kretschmer , D. H. Hartmann , J. Knoedlseder

Deep, narrow-band Halpha observations taken with the TAURUS Tunable Filter (TTF) on the 4.2m WHT telescope are presented for two nearby radio galaxies with strong jet-cloud interactions. Although the brightest emission line components are…

天体物理学 · 物理学 2009-10-31 C. N. Tadhunter , M. Villar-Martin , R. Morganti , J. Bland-Hawthorn , D. Axon

We study the physical properties of a spectroscopic sample of 28 star-forming galaxies in a large filamentary structure in the COSMOS field at $z\sim$0.53, with spectroscopic data taken with the Keck/DEIMOS spectrograph, and compare them…

星系天体物理 · 物理学 2015-10-20 Behnam Darvish , Bahram Mobasher , David Sobral , Shoubaneh Hemmati , Hooshang Nayyeri , Irene Shivaei
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