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Related papers: Probing Outflows in z= 1~2 Galaxies through FeII/F…

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We study emission line profiles of 21 nearby low-mass ($M_*=10^4-10^7~M_\odot$) galaxies in deep medium-high resolution spectra taken with Magellan/MagE. These low-mass galaxies are actively star-forming systems with high specific…

We present observations of ionized gas outflows in eleven z$ =1.39-2.59$ radio-loud quasar host galaxies. Data was taken with the integral field spectrograph (IFS) OSIRIS and the adaptive optics system at the W.M. Keck Observatory targeting…

Recent studies have shown that outflows in at least some broad absorption line (BAL) quasars are extended well beyond the putative dusty torus. Such outflows should be detectable in obscured quasars. We present four WISE selected infrared…

High Energy Astrophysical Phenomena · Physics 2016-09-02 Tinggui Wang , Gary Ferland , Chenwei Yang , Huiyuan Wang , Shaohua Zhang

We present the first attempt to detect outflows from galaxies approaching the Epoch of Reionization (EoR) using a sample of 9 star-forming ($\rm SFR=31\pm 20~M_{\odot}~yr^{-1}$) $z\sim 5.5$ galaxies for which the [CII]158$\mu$m line has…

Astrophysics of Galaxies · Physics 2018-04-04 S. Gallerani , A. Pallottini , C. Feruglio , A. Ferrara , R. Maiolino , L. Vallini , D. A. Riechers , R. Pavesi

A new generation of cosmological experiments will spectroscopically detect the H$\alpha$ line from ELGs at optical/near-infrared frequencies. Other emission lines will also be present, which may come from the same H$\alpha$ sample or…

Cosmology and Nongalactic Astrophysics · Physics 2021-07-02 José Fonseca , Stefano Camera

We present measurements of the OII(3727) emission line width for a complete sample of 24 blue field galaxies (21.25<B<22, B-R<1.2) at <z>=0.25, obtained with the AUTOFIB fibre spectrograph on the Anglo-Australian Telescope. Most emission…

Astrophysics · Physics 2015-06-24 H. -W. Rix , P. Guhathakurta , M. Colless , K. Ing

We characterize, for the first time, the average extended emission in multiple lines ([OII], [OIII], and Hbeta) around a statistical sample of 560 galaxies at z~0.25-0.85. By stacking the Multi Unit Spectroscopic Explorer (MUSE) 3D data…

We present the results of a deep, near-infrared, narrow band imaging survey at a central wavelength of 1.062 microns (FWHM=0.01 microns) in the GOODS-South field using the ESO VLT instrument, HAWK-I. The data are used to carry out the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 K. D. Bayliss , R. G. McMahon , B. P. Venemans , E. V. Ryan-Weber , J. R. Lewis

We used ultraviolet spectra from HST/STIS (R=30,000), together with optical spectra from Keck/HIRES (R=45,000), to study the three MgII-selected absorption systems at z=0.9254, 0.9276, and 0.9342 toward the quasar PG 1206+459. A multi-phase…

Astrophysics · Physics 2007-05-23 Jie Ding

We present a survey of MgII absorbing gas in the vicinity of 380 random galaxies, using 156 background quasi-stellar objects(QSOs) as absorption-line probes. The sample comprises 211 isolated (73 quiescent and 138 star-forming galaxies) and…

Rest-frame far-ultraviolet (FUV) observations from JWST are revolutionizing our understanding of the high-z galaxies that drove reionization and the mechanisms by which they accomplished it. To fully interpret these observations, we must be…

We examine to what extent disk and outflow models can reproduce observations of H I gas within a few virial radii of galaxies in pairs and groups. Using highly-sensitive HST/COS and FOS spectra of the Q0107 quasar triplet covering…

Astrophysics of Galaxies · Physics 2023-03-08 Alexander Beckett , Simon L. Morris , Michele Fumagalli , Nicolas Tejos , Buell Jannuzi , Sebastiano Cantalupo

X-ray absorption and emission lines now serve as powerful diagnostics of the outflows from active galaxies. Detailed X-ray line studies of outflows have recently been enabled for a significant number of active galaxies via the grating…

Astrophysics · Physics 2009-11-07 W. N. Brandt , S. Kaspi

We obtained medium-resolution ultraviolet (UV) spectra between 1150 and 1450 Angstroms of the four UV-bright, infrared (IR)-luminous starburst galaxies IRAS F08339+6517, NGC 3256, NGC 6090, and NGC 7552 using the Cosmic Origins Spectrograph…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Claus Leitherer , Rupali Chandar , Christy Tremonti , Aida Wofford , Daniel Schaerer

The equivalent widths of MgII absorption in the circumgalactic medium (CGM) trace the global star formation rate up to $z<6$, are larger for star-forming galaxies than passively-evolving galaxies, and decrease with increasing distance from…

Astrophysics of Galaxies · Physics 2016-03-09 Nikole M. Nielsen , Christopher W. Churchill , Glenn G. Kacprzak , Michael T. Murphy , Jessica L. Evans

We present the results of a uniform and systematic search for blue-shifted Fe K absorption lines in the X-ray spectra of five bright Broad-Line Radio Galaxies (BLRGs) observed with Suzaku. We detect, for the first time at X-rays in…

High Energy Astrophysical Phenomena · Physics 2015-05-19 F. Tombesi , R. M. Sambruna , J. N. Reeves , V. Braito , L. Ballo , J. Gofford , M. Cappi , R. F. Mushotzky

We present spatially resolved gas kinematics, ionization, and energetics of 11 type 1 and 5 type 2 active galactic nuclei (AGNs) with strong ionized gas outflows at z $<0.3$ using Gemini Multi-Object Spectrograph Integral Field Unit…

Astrophysics of Galaxies · Physics 2023-10-13 Changseok Kim , Jong-Hak Woo , Rongxin Luo , Aeree Chung , Junhyun Baek , Huynh Anh N. Le , Donghoon Son

We present an analysis of millimeter CO observations to search and quantify signatures of molecular gas outflows. We exploit the large sample of $0.5 < z < 2.6$ galaxies observed as part of the PHIBSS1/2 surveys with the IRAM Plateau de…

We study the multi-phase circumgalactic medium (CGM) of emission line galaxies (ELGs) at $z\sim1.5$, traced by MgII$\lambda2796$, $\lambda2803$ and CIV$\lambda1548$, $\lambda1550$ absorption lines, using approximately 7,000 ELG-quasar pairs…

We report the discovery of large amounts of cold (T ~ 10^4 K), chemically young gas in an overdensity of galaxies at redshift z ~ 1.6 in the Great Observatories Origins Deep Survey southern field (GOODS-S). The gas is identified thanks to…