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Related papers: Multiple Component Outflows in an Active Region Ob…

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We present high-spatial resolution Plateau de Bure Interferometer CO(2-1) and SiO(2-1) observations of one intermediate-mass and one high-mass star-forming region. The intermediate-mass region IRAS20293+3952 exhibits four molecular…

Astrophysics · Physics 2009-11-10 H. Beuther , P. Schilke , F. Gueth

Studying the Doppler shifts and the temperature dependence of Doppler shifts in moss regions can help us understand the heating processes in the core of the active regions. In this paper we have used an active region observation recorded by…

Solar and Stellar Astrophysics · Physics 2015-06-04 Durgesh Tripathi , Helen E. Mason , James A. Klimchuk

Integral Field Spectroscopy (IFS) is well known for providing detailed insight of extended sources thanks to the possibility of handling space resolved spectroscopic information. Simple and straightforward analysis such as single line…

We present VLT/VIMOS-IFU emission-line spectroscopy of a volume limited sample of 18 southern ULIRGs selected with z<0.09 and dec<10. By covering a wide range of ULIRG types, this dataset provides an important set of templates for…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Mark Westmoquette , Dave Clements , George Bendo , Sophia Khan

We present an improved model for excess variance spectra describing ultra-fast outflows and successfully apply it to the luminous (L ~ 10^47 erg/s) low-redshift (z = 0.184) quasar PDS 456. The model is able to account well for the…

High Energy Astrophysical Phenomena · Physics 2020-11-17 L. Härer , M. L. Parker , A. Joyce , Z. Igo , W. N. Alston , F. Fürst , A. P. Lobban , G. A. Matzeu , J. N. Reeves

The Extreme ultraviolet Imaging Spectrometer (EIS) on board the Hinode spacecraft has been operating since 2006, returning high resolution data in the 170-212 and 246-292 A wavelength regions. EIS has four slit options, with the narrow 1"…

Solar and Stellar Astrophysics · Physics 2022-07-20 Peter R. Young , Ignacio Ugarte-Urra

Network loops are a common feature in the quiet Sun. The physical processes sustaining their energy budget is still under discussion. We rely on a multi-instrumental (Solar Orbiter/EUI, Solar Orbiter/PHI, IRIS) observation of a six hours…

Solar and Stellar Astrophysics · Physics 2026-03-31 A. Dolliou , H. Peter , S. Mandal , L. P. Chitta , L. Teriaca , Y. Chen , D. Calchetti

We present high angular resolution observations toward two massive star forming regions IRAS 18264-1152 and IRAS 23151+5912 with the Plateau de Bure Interferometer (PdBI) in the SiO (J=2-1) and H$^{13}$CO$^{+}$ (J=1-0) lines and at 1.3 mm…

Astrophysics · Physics 2008-11-26 Keping Qiu , Qizhou Zhang , Henrik Beuther , Ji Yang

Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows. Methods. We carried out observations towards a region of 2 arcmin x 2…

Astrophysics of Galaxies · Physics 2015-06-11 M. E. Ortega , S. Paron , S. Cichowolski , M. Rubio , G. Dubner

Using a spectral decomposition technique (Soto & Martin 2012, hereafter Paper I), we investigate the physical origin of the high-velocity emission line gas in a sample of 39 gas-rich, ultraluminous infrared galaxy (ULIRG) mergers. Regions…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Kurt T. Soto , C. L. Martin , M. K. M. Prescott , L. Armus

Measurements of interstellar absorption lines in 18 ultraluminous infrared galaxies (ULIGs) have been combined with published data, in order to reassess the dependence of galactic outflow speeds on starburst luminosity and galactic mass.…

Astrophysics · Physics 2010-04-06 Crystal L. Martin

The Extreme-ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft obtains high resolution spectra of the solar atmosphere in two wavelength ranges: 170 - 210 and 250 - 290 angstroms. These wavelength regions contain a wealth of…

Solar and Stellar Astrophysics · Physics 2014-11-18 Yuan-Kuen Ko , George A. Doschek , Harry P. Warren , Peter R. Young

We investigate the conditions that facilitate galactic-scale outflows using a sample of 155 typical star-forming galaxies at $z$~2 drawn from the MOSFIRE Deep Evolution Field (MOSDEF) survey. The sample includes deep rest-frame UV…

We present a study of molecular outflows using six molecular lines (including 12CO/13CO/C18O/HCO+(J = 1-0) and SiO/CS(J = 2-1)) toward nine nearby high-mass star-forming regions with accurate known distances. This work is based on the…

Astrophysics of Galaxies · Physics 2021-03-10 De-Jian Liu , Ye Xu , Ying-Jie Li , Sheng Zheng , Deng-Rong Lu , Chao-Jie Hao , Ze-Hao Lin , Shuai-Bo Bian , Li-Ming Liu

We present two-dimensional stellar and gaseous kinematics of the inner 0.7 $\times$ 1.2 kpc$^{2}$ of the Seyfert galaxy ESO 362-G18, derived from optical spectra obtained with the GMOS/IFU on the Gemini South telescope at a spatial…

We present two-dimensional maps of emission-line fluxes and kinematics, as well as of the stellar kinematics of the central few kpc of five bright nearby Seyfert galaxies -- Mrk\,6, Mrk\,79, Mrk\,348, Mrk\,607 and Mrk\,1058 -- obtained from…

Some T Tauri stars show a peculiar X-ray spectrum that can be modelled by two components with different absorbing column densities. We seek to explain the soft X-ray component in DG Tau, the best studied of these sources, with an outflow…

Astrophysics · Physics 2009-11-13 H. M. Guenther , S. P. Matt , Z. -Y. Li

Active regions are thought to be one contributor to the slow solar wind. Upflows in EUV coronal spectral lines are routinely osberved at their boundaries, and provide the most direct way for upflowing material to escape into the…

Solar and Stellar Astrophysics · Physics 2021-08-18 David H. Brooks , Louise Harra , Stuart D. Bale , Krzysztof Barczynski , Cristina Mandrini , Vanessa Polito , Harry P. Warren

We present analysis of the UV-spectrum of the low-z AGN IRAS-F22456-5125 obtained with the Cosmic Origins Spectrograph on board the Hubble Space Telescope. The spectrum reveals six main kinematic components, spanning a range of velocities…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Benoit Borguet , Doug Edmonds , Nahum Arav , Jay Dunn , Gerard A. Kriss

Ultravoilet (UV) absorption lines provide abundant spectroscopic information enabling the probe of the physical conditions in AGN outflows, but the outflow radii (and the energetics consequently) can only be determined indirectly. In this…

Astrophysics of Galaxies · Physics 2015-11-04 Guilin Liu , Nahum Arav , David S. N. Rupke