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Related papers: Characterizing Outflows in the Cygnus X Region

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We present results from three-dimensional, self-gravitating, radiation-hydrodynamic simulations of low-mass protostellar outflows. We construct synthetic observations in 12CO in order to compare with observed outflows and evaluate the…

Solar and Stellar Astrophysics · Physics 2015-05-30 S. S. R. Offner , E. J. Lee , A. A. Goodman , H. Arce

We present a comprehensive study on the physical and chemical structures of a chemically rich bipolar outflow in a high-mass star forming region IRAS 16272$-$4837 (SDC335), utilizing high-resolution spectral line data at 1.3 mm and 3 mm…

We present the results of a deep search for the molecular hydrogen shock fronts associated with young stellar outflows in the giant molecular cloud and massive star forming region W51. A total of 14 outflows were identified, and a few of…

Astrophysics · Physics 2009-11-07 Klaus W. Hodapp , Christopher J. Davis

We present a millimeter wave study of a cluster of bipolar CO outflows embedded in the western end of the Circinus molecular cloud complex, G317-4, that is traced by very high optical extinction. For an assumed distance of 700 pc, the…

Astrophysics · Physics 2014-10-13 John Bally , Bo Reipurth , Charles J. Lada , Youssef Billawala

We detect four very energetic outflows in the Hubble Space Telescope/Cosmic Origin Spectrograph spectra of quasar 2MASS J1051+1247 with a combined kinetic luminosity ($\dot{E_k}$) of 10$^{46}$ erg s$^{-1}$. Remarkable similarities are seen…

Astrophysics of Galaxies · Physics 2020-03-20 Timothy R. Miller , Nahum Arav , Xinfeng Xu , Gerard A. Kriss , Rachel J. Plesha

Context. The formation processes of massive stars are still unclear but a picture is emerging involving accretion disks and molecular outflows in what appears to be a scaled-up version of low-mass star formation. A census of outflow…

We aimed to map the jets and outflows from the Serpens South star forming region and find an empirical relationship between the magnetic field and outflow orientation. Near-infrared H2 v=1-0 S(1) 2.122{\mu}m -line imaging of the \sim…

Solar and Stellar Astrophysics · Physics 2015-06-04 G. D. C. Teixeira , M. S. N. Kumar , R. Bachiller , J. M. C. Grave

Submillimeter lines of CN, NO, CO+ and SO+, and upper limits on SH+ and N2O are observed with the James Clerk Maxwell Telescope in two high-mass and up to nine low-mass young stellar objects and compared with chemical models. Constant…

By studying 7 objects in the Lupus clouds we aim to test if a coherence exists between commonly used evolutionary tracers. We present ALMA observations of the continuum and molecular line emission that probe the dense gas and dust of cores…

Solar and Stellar Astrophysics · Physics 2021-04-14 M. M. Vazzano , M. Fernández-López , A. Plunkett , I. de Gregorio-Monsalvo , A. Santamaría-Miranda , S. Takahashi , C. Lopez

We present a sample of 17 objects from the CALIFA survey where we find initial evidence of galactic winds based on their off-axis ionization properties. We identify the presence of outflows using various optical diagnostic diagrams (e.g.,…

The SiO emissions are usually used to trace high-velocity outflow shocks in star-forming regions. However, several studies have found low-velocity and widespread SiO emissions not associated with outflows in molecular clouds. We aim to…

Astrophysics of Galaxies · Physics 2024-04-24 Kai Yang , Keping Qiu , Xing Pan

An unbiased search of molecular outflows within the region of the COHRS survey has identified 157 high-mass outflows from a sample of 770 ATLASGAL clumps with a detection rate of 20\%. The detection rate of outflows increases for clumps…

Astrophysics of Galaxies · Physics 2018-11-28 Qiang Li , Jianjun Zhou , Jarken Esimbek , Yuxin He , W. A. Baan , Dalei Li , Gang Wu , Xindi Tang , Weiguang Ji

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 the results of a narrow-band near-infrared imaging survey for Molecular Hydrogen emission-line Objects (MHOs) toward 26 regions containing high-mass protostellar candidates and massive molecular outflows. We have detected a total…

Solar and Stellar Astrophysics · Physics 2017-07-26 G. Wolf-Chase , K. Arvidsson , M. Smutko

The accretion history of protostars remains widely mysterious even though it represents one of the best ways to understand the protostellar collapse that leads to the formation of stars. Molecular outflows are here used to characterize the…

Astrophysics of Galaxies · Physics 2020-04-15 T. Nony , F. Motte , F. Louvet , A. Plunkett , A. Gusdorf , S. Fechtenbaum , Y. Pouteau , B. Lefloch , S. Bontemps , J. Molet , J. -F. Robitaille

The outflow force of molecular bipolar outflows is a key parameter in theories of young stellar feedback on their surroundings. The focus of many outflow studies is the correlation between the outflow force, bolometric luminosity and…

Solar and Stellar Astrophysics · Physics 2015-06-16 Nienke van der Marel , Lars E. Kristensen , Ruud Visser , Joseph C. Mottram , Umut A. Yıldız , Ewine F. van Dishoeck

Massive star formation is associated with energetic processes that may influence the physics and chemistry of parental molecular clouds and impact galaxy evolution. The high-mass protostar DR21 Main in Cygnus X possesses one of the largest…

Outflows are one of the most spectacular mechanisms through which active galactic nuclei (AGN) impact their host galaxy, though the role of AGN-driven outflows in global star formation regulation across the galaxy population is unclear. NGC…

Ultraluminous X-ray sources are non-nuclear point sources exceeding the Eddington luminosity of a 10 Solar mass black hole. Modern consensus for a majority of the ULX population is that they are powered by stellar-mass black holes or…

High Energy Astrophysical Phenomena · Physics 2017-12-20 P. Kosec , C. Pinto , A. C. Fabian , D. J. Walton

The high spatial and spectral resolution offered by the new generation of infrared spectrometers at ESO is optimally suited for the observational study of outflows from young stellar objects. Models of interstellar shock waves would benefit…

Astrophysics · Physics 2009-11-10 R. Liseau
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