output
19932026
most citedThe Gaia mission

7.1k citations

Showing 2015Show all

97 papers · 1 filter

astro-ph.GA2015★ 32 cited

Evidence for a chemically differentiated outflow in Mrk 231

J. E. Lindberg, S. Aalto, S. Muller +7

Aims: Our goal is to study the chemical composition of the outflows of active galactic nuclei and starburst galaxies. Methods: We obtained high-resolution interferometric observati…

astro-ph.GA2015★ 13 cited

The XXL Survey XI: ATCA 2.1 GHz continuum observations

Vernesa Smolcic, Jacinta Delhaize, Minh Huynh +16

We present 2.1 GHz imaging with the Australia Telescope Compact Array (ATCA) of a 6.5 deg^2 region within the XXM-Newton XXL South field using a band of 1.1-3.1 GHz. We achieve an…

astro-ph.HE2015★ 173 cited

High-Sensitivity 86GHz (3.5mm) VLBI Observations of M87: Deep Imaging of the Jet Base at a 10 Schwarzschild-Radius Resolution

Kazuhiro Hada, Motoki Kino, Akihiro Doi +9

We report on results from new high-sensitivity, high-resolution 86GHz (3.5 millimeter) observations of the jet base in the nearby radio galaxy M87, obtained by the Very Long Baseli…

astro-ph.GA2015★ 90 cited

The interstellar chemistry of H2C3O isomers

Jean-Christophe Loison, Marcelino Agúndez, Núria Marcelino +6

We present the detection of two H2C3O isomers, propynal and cyclopropenone, toward various starless cores and molecular clouds, together with upper limits for the third isomer prop…

astro-ph.CO2015★ 29 cited

KAT-7 observations of a mass-selected sample of galaxy clusters

G. Bernardi, T. Venturi, R. Cassano +7

The presence of megaparsec-scale radio halos in galaxy clusters has already been established by many observations over the last two decades. The emerging explanation for the format…

astro-ph.GA2015★ 117 cited

Very-high-energy gamma-rays from the Universe's middle age: detection of the z=0.940 blazar PKS 1441+25 with MAGIC

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +246

The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250 GeV with a significance of 25.5 σ using the MAGIC telescopes. Together with the…

astro-ph.HE2015★ 266 cited

The 1st Fermi Lat Supernova Remnant Catalog

Fabio Acero, Markus Ackermann, Marco Ajello +156

To uniformly determine the properties of supernova remnants (SNRs) at high energies, we have developed the first systematic survey at energies from 1 to 100 GeV using data from the…

astro-ph.HE2015★ 4 cited

Fossil shell emission in dying radio loud AGNs

M. Kino, H. Ito, N. Kawakatu +4

We investigate shell emission associated with dying radio loud AGNs. First, based on our recent work by Ito et al. (2015), we describe the dynamical and spectral evolutions of shel…

astro-ph.HE2015★ 405 cited

Fermi-LAT Observations of High-Energy Gamma-Ray Emission Toward the Galactic Center

LAT Collaboration

The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission towards the Galactic centre (GC) in high-energy gamma-rays. This paper describes th…

astro-ph.GA2015★ 26 cited

The Planck-ATCA Co-eval Observations (PACO) project: analysis of radio source properties between 5 and 217 GHz

Marcella Massardi, Anna Bonaldi, Laura Bonavera +3

The Planck-ATCA Co-eval Observations (PACO) project has yielded observations of 464 sources with the Australia Telescope Compact Array (ATCA) between 4.5 and 40 GHz. The main purpo…

astro-ph.GA2015★ 3 cited

The Lockman Hole with LOFAR - Searching for GPS and CSS sources at low frequencies

Elizabeth K. Mahony, Raffaella Morganti, Isabella Prandoni +1

The Lockman Hole Project is a wide international collaboration aimed at exploiting the multi-band extensive and deep information available for the Lockman Hole region, with the aim…

astro-ph.GA2015★ 75 cited

X-ray high-resolution spectroscopy reveals feedback in a Seyfert galaxy from an ultra fast wind with complex ionization and velocity structure

Anna Lia Longinotti, Yair Krongold, Matteo Guainazzi +5

Winds outflowing from Active Galactic Nuclei (AGNs) may carry significant amount of mass and energy out to their host galaxies. In this paper we report the detection of a sub-relat…

astro-ph.GA2015★ 92 cited

The VIMOS Public Extragalactic Redshift Survey (VIPERS). Environmental effects shaping the galaxy stellar mass function

I. Davidzon, O. Cucciati, M. Bolzonella +38

We exploit the first public data release of VIPERS to investigate environmental effects in galaxy evolution between and . The large number of spectroscopic redshift…

astro-ph.CO2015★ 180 cited

Resolving the Extragalactic -ray Background above 50 GeV with Fermi-LAT

LAT Collaboration

The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re…

astro-ph.GA2015★ 66 cited

Radio properties of Compact Steep Spectrum and GHz-Peaked Spectrum radio sources

M. Orienti

Compact steep spectrum (CSS) and GHz-peaked spectrum (GPS) radio sources represent a large fraction of the extragalactic objects in flux density-limited samples. They are compact,…

astro-ph.IM2015★ 20 cited

Geometrical on-the-fly shock detection in SPH

Alexander M. Beck, K. Dolag, Julius M. F. Donnert

We present an on-the-fly geometrical approach for shock detection and Mach number calculation in simulations employing smoothed particle hydrodynamics (SPH). We utilize pressure gr…

astro-ph.GA2015★ 18 cited

ALMA Probes the Molecular Gas Reservoirs in the Changing-Look Seyfert Galaxy Mrk 590

J. Y. Koay, M. Vestergaard, V. Casasola +2

We investigate if the active galactic nucleus (AGN) of Mrk 590, whose supermassive black hole was until recently highly accreting, is turning off due to a lack of central gas to fu…

astro-ph.HE2015★ 8 cited

The Fermi-LAT view of young radio sources

F. D'Ammando, M. Orienti, M. Giroletti

Compact Symmetric Objects (CSO) are considered to be the young version of Fanaroff-Riley type I and type II radio galaxies, with typical sizes smaller than 1 kpc and ages of the or…

astro-ph.HE2015

High-energy properties of the high-redshift flat spectrum radio quasar PKS 2149-306

F. D'Ammando, M. Orienti

We investigate the gamma-ray and X-ray properties of the flat spectrum radio quasar PKS 2149-306 at redshift z = 2.345. A strong gamma-ray flare from this source was detected by th…

astro-ph.GA2015★ 1 cited

A possible link between high rotation measure and CSS-GPS sources

Alice Pasetto, Alex Kraus, Karl-Heinz Mack +2

We report here the study, in the radio band, of a sample of candidates of high Rotation Measure (RM). The point-like objects (at kpc scale) were selected by choosing unpolarised so…

astro-ph.GA2015★ 21 cited

A study of a sample of high rotation measure AGNs through multifrequency single dish observations

Alice Pasetto, Alex Kraus, Karl-Heinz Mack +2

We characterised and studied, in the radio band, a sample of candidates of high Rotation Measure (RM). These point-like objects show a strong depolarisation at 21cm. This feature s…

astro-ph.GA2015★ 28 cited

The new class of FR0 radio galaxies

Ranieri D. Baldi, Alessandro Capetti, Gabriele Giovannini

Are the FRI and FRII radio galaxies representative of the radio-loud (RL) AGN population in the local Universe? Recent studies on the local low-luminosity radio sources cast lights…

astro-ph.GA2015★ 1 cited

Fast outflows in broad absorption line quasars and their connection with CSS/GPS sources

G. Bruni, K. -H. Mack, F. M. Montenegro-Montes +2

Broad absorption line quasars are among the objects presenting the fastest outflows. The launching mechanism itself is not completely understood. Models in which they could be laun…

astro-ph.HE2015★ 268 cited

Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113

The Fermi LAT collaboration, M. Ackermann, M. Ajello +139

We report for the first time a gamma-ray and multi-wavelength nearly-periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope (LAT) we have discover…