output
19952026
most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

Showing 2017Show all

24 papers · 1 filter

astro-ph.HE2017★ 199 cited

Blazar spectral variability as explained by a twisting inhomogeneous jet

C. M. Raiteri, M. Villata

Blazar emission is dominated by non-thermal radiation from a relativistic jet pointing toward us, therefore undergoing Doppler beaming. This is responsible for flux enhancement and…

astro-ph.CO2017★ 23 cited

Sub-structure and merger detection in resolved NIKA Sunyaev-Zel'dovich images of distant clusters

R. Adam, O. Hahn, F. Ruppin +48

Sub-structures in the hot gas of galaxy clusters are related to their formation history and to the astrophysical processes at play in the intracluster medium (ICM). The thermal Sun…

astro-ph.CO2017★ 71 cited

First Sunyaev-Zel'dovich mapping with the NIKA2 camera: Implication of cluster substructures for the pressure profile and mass estimate

F. Ruppin, F. Mayet, G. W. Pratt +37

The complete characterization of the pressure profile of high-redshift galaxy clusters, from their core to their outskirts, is a major issue for the study of the formation of large…

astro-ph.IM2017★ 12 cited

The NIKA2 instrument at 30-m IRAM telescope: performance and results

A. Catalano, R. Adam, P. A. R. Ade +84

The New IRAM KID Arrays 2 (NIKA2) consortium has just finished installing and commissioning a millimetre camera on the IRAM 30 m telescope. It is a dual-band camera operating with…

astro-ph.HE2017★ 64 cited

Large magnetic field variations towards the Galactic Centre magnetar, PSR J1745-2900

Gregory Desvignes, Ralph Eatough, Ue-Li Pen +13

Polarised radio emission from PSR J1745-2900 has already been used to investigate the strength of the magnetic field in the Galactic Centre, close to Sagittarius A*. Here we report…

astro-ph.HE2017★ 3 cited

Long-term observations of pulsars in the globular clusters 47 Tucanae and M15

A. Ridolfi, P. C. C. Freire, M. Kramer +15

Multi-decade observing campaigns of the globular clusters 47 Tucanae and M15 have led to an outstanding number of discoveries. Here, we report on the latest results of the long-ter…

astro-ph.GA2017★ 26 cited

VLBA polarimetric monitoring of 3C 111

T. Beuchert, M. Kadler, M. Perucho +17

We aim to better understand the dynamics within relativistic magneto-hydrodynamical flows in the extreme environment and close vicinity of supermassive black holes. To do so, we an…

astro-ph.GA2017★ 57 cited

Massive 70 micron quiet clumps II: non-thermal motions driven by gravity in massive star formation?

A. Traficante, G. A. Fuller, R. J. Smith +5

The dynamic activity in massive star forming regions prior to the formation of bright protostars is still not fully investigated. In this work we present observations of HCO+ J=1-0…

astro-ph.GA2017★ 526 cited

xCOLD GASS: the complete IRAM-30m legacy survey of molecular gas for galaxy evolution studies

Amélie Saintonge, Barbara Catinella, Linda J. Tacconi +18

We introduce xCOLD GASS, a legacy survey providing a census of molecular gas in the local Universe. Building upon the original COLD GASS survey, we present here the full sample of…

astro-ph.GA2017★ 77 cited

POLAMI: Polarimetric Monitoring of Active Galactic Nuclei at Millimetre Wavelengths. III. Characterisation of total flux density and polarisation variability of relativistic jets

Ivan Agudo, Clemens Thum, Venkatessh Ramakrishnan +3

We report on the first results of the POLAMI program, a simultaneous 3.5 and 1.3mm full-Stokes-polarisation monitoring of a sample of 36 of the brightest active galactic nuclei in…

astro-ph.GA2017★ 53 cited

POLAMI: Polarimetric Monitoring of Active Galactic Nuclei at Millimetre Wavelengths. II. Widespread circular polarisation

Clemens Thum, Ivan Agudo, Sol N. Molina +5

We analyse the circular polarisation data accumulated in the first 7 years of the POLAMI project introduced in an accompanying paper (Agudo et al.). In the 3mm wavelength band, we…

astro-ph.GA2017★ 77 cited

POLAMI: Polarimetric Monitoring of Active Galactic Nuclei at Millimetre Wavelengths. I. The program, calibration, and calibrators data products

Ivan Agudo, Clemens Thum, Sol N. Molina +6

We describe the POLAMI program for the monitoring of all four Stokes parameters of a sample of bright radio-loud active galactic nuclei with the IRAM 30m telescope at 3.5 and 1.3mm…

astro-ph.CO2017★ 37 cited

Mapping the hot gas temperature in galaxy clusters using X-ray and Sunyaev-Zel'dovich imaging

R. Adam, M. Arnaud, I. Bartalucci +42

We propose a method to map the temperature distribution of the hot gas in galaxy clusters that uses resolved images of the thermal Sunyaev-Zel'dovich (tSZ) effect in combination wi…

astro-ph.CO2017★ 32 cited

A multi-instrument non-parametric reconstruction of the electron pressure profile in the galaxy cluster CLJ1226.9+3332

C. Romero, M. McWilliam, J. -F. Macıas-Perez +36

Context: In the past decade, sensitive, resolved Sunyaev-Zel'dovich (SZ) studies of galaxy clusters have become common. Whereas many previous SZ studies have parameterized the pres…

astro-ph.HE2017★ 134 cited

Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks

P. C. C. Freire, A. Ridolfi, M. Kramer +9

This paper is the second in a series where we report the results of the long-term timing of the millisecond pulsars (MSPs) in 47 Tucanae with the Parkes 64-m radio telescope. We ob…

astro-ph.IM2017★ 160 cited

The NIKA2 large field-of-view millimeter continuum camera for the 30-m IRAM telescope

Remi Adam, Amar Adane, P. A. R. Ade +45

Millimeter-wave continuum astronomy is today an indispensable tool for both general Astrophysics studies and Cosmology. General purpose, large field-of-view instruments are needed…

astro-ph.GA2017★ 153 cited

Cloud Scale ISM Structure and Star Formation in M51

Adam K. Leroy, Eva Schinnerer, Annie Hughes +17

We compare the structure of molecular gas at pc resolution to the ability of gas to form stars across the disk of the spiral galaxy M51. We break the PAWS survey into pc…

astro-ph.GA2017★ 61 cited

Probing changes of dust properties along a chain of solar-type prestellar and protostellar cores in Taurus with NIKA

A. Bracco, P. Palmeirim, Ph. André +45

The characterization of dust properties in the interstellar medium (ISM) is key for star formation. Mass estimates are crucial to determine gravitational collapse conditions for th…

astro-ph.GA2017★ 5 cited

Multiwavelength characterisation of an ACT-selected, lensed dusty star-forming galaxy at z=2.64

G. W. Roberts-Borsani, M. J. Jiménez-Donaire, M. Daprà +19

We present \ci\,(2--1) and multi-transition CO observations of a dusty star-forming galaxy, ACT\,J2029+0120, which we spectroscopically confirm to lie at \,=\,2.64. We de…

astro-ph.SR2017★ 23 cited

Magnetic field in IRC+10216 and other C-Rich Evolved Stars

A. Duthu, F. Herpin, H. Wiesemeyer +3

During the transition from the Asymptotic Giant Branch (AGB) to Planetary Nebulae (PN), the circumstellar geometry and morphology change dramatically. Another characteristic of thi…

astro-ph.SR2017★ 1 cited

On the nature of the candidate T-Tauri star V501 Aurigae

M. Vaňko, G. Torres, L. Hambálek +18

We report new multi-colour photometry and high-resolution spectroscopic observations of the long-period variable V501 Aur, previously considered to be a weak-lined T-Tauri star bel…

astro-ph.GA2017★ 147 cited

Deriving a multivariate CO-to-H conversion function using the [CII]/CO(1-0) ratio and its application to molecular gas scaling relations

G. Accurso, A. Saintonge, B. Catinella +17

We present Herschel PACS observations of the [CII] 158 micron emission line in a sample of 24 intermediate mass (9<logM/M<10) and low metallicity (0.4< Z/Z<1…

astro-ph.HE2017★ 82 cited

F-GAMMA: Variability Doppler factors of blazars from multiwavelength monitoring

I. Liodakis, N. Marchili, E. Angelakis +8

Recent population studies have shown that the variability Doppler factors can adequately describe blazars as a population. We use the flux density variations found within the exten…

astro-ph.GA2017★ 105 cited

Turbulence and star formation efficiency in molecular clouds: solenoidal versus compressive motions in Orion B

Jan H. Orkisz, Jérôme Pety, Maryvonne Gerin +13

The nature of turbulence in molecular clouds is one of the key parameters that control star formation efficiency: compressive motions, as opposed to solenoidal motions, can trigger…