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We analyze VLT/MUSE observations of 37 radio galaxies from the Third Cambridge catalogue (3C) with redshift $<$0.3 searching for nuclear outflows of ionized gas. These observations are part of the MURALES project (a MUse RAdio Loud Emission…

We present high-resolution ($\sim$2.4\,kpc) ALMA band 7 observations (rest-frame $\lambda \sim 250\mu$m) of three powerful z$\sim$2.5 quasars ($L_{\rm bol}=10^{47.3}$-$10^{47.5}$ ergs s$^{-1}$). These targets have previously been reported…

Young radio AGN are pivotal for our understanding of many of the still-debated aspects of AGN feedback. In this paper we present a study of the interstellar medium in the compact, peaked-spectrum radio galaxy PKSB1934-63 using X-shooter…

Astrophysics of Galaxies · Physics 2018-10-03 F. Santoro , M. Rose , R. Morganti , C. Tadhunter , T. A. Oosterloo , J. Holt

Mapping Mg II resonance emission scattered by galactic winds offers a means to determine the spatial extent and density of the warm outflow. Using Keck/LRIS spectroscopy, we have resolved scattered Mg II emission to the east of 32016857, a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Crystal L. Martin , Alice E. Shapley , Alison L. Coil , Katherine A. Kornei , Norman Murray , Anna Pancoast

We investigated the interstellar medium properties of the disc and outflowing gas in the central regions of nine nearby Seyfert galaxies, all characterised by prominent outflows. These objects are part of the Measuring Active Galactic…

We present results from a combined radio polarization and emission line study of five type 2 quasars at $z<0.2$ with the Karl G. Jansky Very Large Array (VLA) B-array at 5 GHz and Hubble Space Telescope (HST) [O III] observations. These…

Astrophysics of Galaxies · Physics 2022-07-19 Silpa Sasikumar , P. Kharb , C. M. Harrison , A. Girdhar , D. Mukherjee , V. Mainieri , M. E. Jarvis

We present an analysis of the kinematics and excitation of the warm ionized gas in two obscured, powerful quasars at z>=3.5 from the SWIRE survey, SWIRE J022513.90-043419.9 and SWIRE J022550.67-042142, based on imaging spectroscopy on the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 N. P. H. Nesvadba , M. Polletta , M. D. Lehnert , J. Bergeron , C. De Breuck , G. Lagache , A. Omont

We have been conducting an imaging survey to detect host galaxies of radio-quiet QSOs at high redshift (z = 2), in order to compare them with those of radio-loud objects. Six QSOs were observed in the R passband with the auxiliary port of…

Astrophysics · Physics 2007-05-23 I. Aretxaga , B. J. Boyle , R. J. Terlevich

Recent detailed studies of Narrow Absorption Line (NAL) systems in QSO-spectra have revealed that at least 50% of QSOs have NALs associated with the central engine, and in most cases they are found to be outflowing. Will studies of NALs…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Vivienne Wild

We present a systematic study of ionized gas outflows based on the velocity shift and dispersion of the [O III] {\lambda}5007 $\AA$ emission line, using a sample of ~ 5000 Type 1 AGNs at z < 0.3 selected from Sloan Digital Sky Survey. This…

Astrophysics of Galaxies · Physics 2018-09-26 Suvendu Rakshit , Jong-Hak Woo

We report the detection of ubiquitous powerful nuclear outflows in massive (> 10^11 Msun) z~2 star-forming galaxies (SFGs), which are plausibly driven by an Active Galactic Nucleus (AGN). The sample consists of the eight most massive SFGs…

Some cosmological hydrodynamical simulations predict that outflows driven by active galactic nuclei (AGN) play a key role in powering the Ly$\alpha$ nebulae observed around high-redshift quasars. In such simulations, AGN feedback seeded as…

The Spitzer GLIMPSE survey has revealed a number of "Extended Green Objects" (EGOs) which display extended emission at 4.5 micron. These EGOs are potential candidates for high mass protostellar outflows. We have used high resolution (< 1")…

Solar and Stellar Astrophysics · Physics 2015-06-04 Hsu-Tai Lee , Michihiro Takami , Hao-Yuan Duan , Jennifer Karr , Yu-Nung Su , Sheng-Yuan Liu , Dirk Froebrich , Cosmos C. Yeh

We present a study of the BAL outflows seen in quasar SDSS J1042+1646 (z = 0.978) in the rest-frame 500 -- 1050 $\r{A}$ (EUV500) region. The results are based on the analysis of recent Hubble Space Telescope/Cosmic Origins Spectrograph…

Astrophysics of Galaxies · Physics 2020-03-25 Xinfeng Xu , Nahum Arav , Timothy Miller , Gerard A. Kriss , Rachel Plesha

We present a detailed analysis of the Astrophysical Research Consortium 3.5 m telescope spectrum of QSO SDSS J0838+2955. The object shows three broad absorption line (BAL) systems at 22,000, 13,000, and 4900 km s^-1 blueshifted from the…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Maxwell Moe , Nahum Arav , Manuel A. Bautista , Kirk T. Korista

We report the detection of OVI 1031,1037 and NV 1238,1242 absorption in a system of "mini-broad" absorption lines (mini-BALs) previously reported to have variable CIV 1548,1550 in the quasar PG0935+417. The formation of these lines in an…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Paola Rodríguez Hidalgo , Fred Hamann , Patrick Hall

Quasar outflows may play important role in the evolution of its host galaxy and central black hole. In this paper, we present a detailed study of multiple outflows in the obscured ultra-luminous infrared quasar Q1321+058. The outflows…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-24 Tinggui Wang , Hongyan Zhou , Weimin Yuan , Honglin Lu , Xiaobo Dong , Hongguang Shan

We imaged the molecular outflows towards the cluster of high-mass young stellar objects G24.78+0.08 at high-angular resolution using SiO emission, which is considered the classical tracer of protostellar jets. We performed SiO observations…

Solar and Stellar Astrophysics · Physics 2015-06-12 C. Codella , M. T. Beltran , R. Cesaroni , L. Moscadelli , R. Neri , M. Vasta , Q. Zhang

We present optical imaging and long slit spectroscopic observations of 9 luminous type 2 AGNs within the redshift range 0.3<z<0.6 based on VLT-FORS2 data. Most objects (6/9) are high luminosity Seyfert 2, and three are type 2 quasars…

Astrophysics of Galaxies · Physics 2019-08-15 A. Humphrey , M. Villar-Martín , C. Ramos Almeida , C. N. Tadhunter , S. Arribas , P. S. Bessiere , A. Cabrera-Lavers

Black hole feedback -- the strong interaction between the energy output of supermassive black holes and their surrounding environments -- is routinely invoked to explain the absence of overly luminous galaxies, the black hole vs. bulge…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Guilin Liu , Nadia L. Zakamska , Jenny E. Greene , Nicole P. H. Nesvadba , Xin Liu