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Related papers: Massive outflows associated with ATLASGAL clumps

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The evolution of protostellar outflows is investigated under different mass accretion rates in the range $\sim10^{-5}-10^{-2} {\rm M}_\odot$ yr$^{-1}$ with three-dimensional magnetohydrodynamic simulations. A powerful outflow always appears…

Astrophysics of Galaxies · Physics 2020-10-21 Masahiro N. Machida , Takashi Hosokawa

We conducted an exploration of 12CO molecular outflows in the Orion A giant molecular cloud to investigate outflow feedback using 12CO (J = 1-0) and 13CO (J = 1-0) data obtained by the Nobeyama 45-m telescope. In the region excluding the…

We predict the evolution of giant clumps undergoing star-driven outflows in high-z gravitationally unstable disk galaxies. We find that the mass loss is expected to occur through a steady wind over many tens of free-fall times (t_ff ~ 10…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Avishai Dekel , Mark R. Krumholz

Feedback from outflows driven by active galactic nuclei (AGN) can affect the distribution and properties of the gaseous halos of galaxies. We study the hydrodynamics and non-thermal emission from the forward outflow shock produced by an…

Astrophysics of Galaxies · Physics 2015-09-09 Xiawei Wang , Abraham Loeb

We report the first systematic survey of molecular lines (including HCO+ (1-0) and 12CO, 13CO, C18O (1-0) lines at 3 mm band) towards a new sample of 88 massive young stellar object (MYSO) candidates associated with ongoing outflows (known…

Solar and Stellar Astrophysics · Physics 2014-11-20 Xi Chen , Zhi-Qiang Shen , Jing-jing Li , Ye Xu , Jin-hua He

Context. Due to the presence of magnetic fields, protostellar jets/outflows are a natural consequence of accretion onto protostars. They are expected to play an important role for star and protoplanetary disk formation. Aims. We aim to…

Solar and Stellar Astrophysics · Physics 2023-12-07 U. Lebreuilly , P. Hennebelle , A. Maury , M. González , A. Traficante , R. Klessen , L. Testi , S. Molinari

We present the analysis of 35.5 square degrees of images in the 1-0S(1) line of H2 from the UK Widefield Infrared Survey for H2 (UWISH2) towards Cassiopeia and Auriga. We have identified 98 Molecular Hydrogen emission-line Objects (MHOs)…

Astrophysics of Galaxies · Physics 2016-08-17 D. Froebrich , S. V. Makin

Studying outflows from young massive star-forming clusters allows one to deduce physical processes that lead to the formation of the most massive stars. I will review the current state of high-spatial-resolution interferometric (sub-)mm…

Astrophysics · Physics 2007-05-23 H. Beuther

X-ray evidence for ultra-fast outflows (UFOs) has been recently reported in a number of local AGNs through the detection of blue-shifted Fe XXV/XXVI absorption lines. We present the results of a comprehensive spectral analysis of a large…

High Energy Astrophysical Phenomena · Physics 2012-08-27 F. Tombesi , M. Cappi , R. M. Sambruna , J. N. Reeves , C. S. Reynolds , V. Braito , M. Dadina

Molecular outflows are expected to play a key role in galaxy evolution at high redshift. To study the impact of outflows on star formation at the epoch of reionization, we performed sensitive ALMA observations of OH 119 $\mu$m toward…

We present new near-IR H2, CO J=2-1, and CO J = 3-2 observations to study outflows in the massive star forming region IRAS 05358+3543. The Canada-France-Hawaii Telescope H2 images and James Clerk Maxwell Telescope CO data cubes of the IRAS…

Astrophysics of Galaxies · Physics 2013-09-26 Adam G. Ginsburg , John Bally , Chi-Hung Yan , Jonathan P. Williams

We present new CO(2-1) observations of 3 low-z (~350 Mpc) ULIRG systems (6 nuclei) observed with ALMA at high-spatial resolution (~500 pc). We detect massive cold molecular gas outflows in 5 out of 6 nuclei (0.3-5)x10^8 Msun. These outflows…

Theoretical models suggest that massive stars form via disk-mediated accretion, with bipolar outflows playing a fundamental role. A recent study toward massive molecular outflows has revealed a decrease of the SiO line intensity as the…

Astrophysics of Galaxies · Physics 2015-06-15 A. Sanchez-Monge , A. Lopez-Sepulcre , R. Cesaroni , C. M. Walmsley , C. Codella , M. T. Beltran , M. Pestalozzi , S. Molinari

The onset of massive star formation is not well understood because of observational and theoretical difficulties. To find the dense and cold clumps where massive star formation can take place, we compiled a sample of high infrared…

Astrophysics of Galaxies · Physics 2015-06-11 K. L. J. Rygl , F. Wyrowski , F. Schuller , K. M. Menten

Coronal lines (CLs), which arise from collisionally excited forbidden transitions from highly ionized species, are a powerful diagnostic tool in uncovering active galactic nuclei (AGNs) and constraining their properties. However, recent…

Astrophysics of Galaxies · Physics 2025-02-24 William Matzko , Shobita Satyapal , Michael Reefe , Jeffrey McKaig , Remington O. Sexton , Sara Doan

We present a census of ionized gas outflows in 599 normal galaxies at redshift 0.6<z<2.7, mostly based on integral field spectroscopy of Ha, [NII], and [SII] line emission. The sample fairly homogeneously covers the main sequence of…

We present Submillimeter Array observations toward the 10^{4.7} Lsun star-forming region G240.31+0.07, in the J=2-1 transition of 12CO and 13CO and at 1.3 mm continuum, as well as the 12CO and 13CO observations from the Caltech…

Astrophysics of Galaxies · Physics 2011-02-11 Keping Qiu , Qizhou Zhang , Jingwen Wu , Huei-Ru Chen

Galactic outflows are believed to play a critical role in the evolution of galaxies by regulating their mass build-up and star formation. Theoretical models assumes bipolar shapes for the outflows that extends well into the circumgalctic…

Recent observations have revealed massive galactic molecular outflows that may have physical conditions (high gas densities) required to form stars. Indeed, several recent models predict that such massive galactic outflows may ignite star…

We review the known properties of molecular outflows from low- and high-mass young stars. General trends among outflows are identified, and the most recent studies on the morphology, kinematics, energetics, and evolution of molecular…