output
19922026
Showing 2021 · astro-ph.GAShow all

133 papers · 2 filters

astro-ph.GA2021★ 11 cited

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE).XI. Two dimensional H kinematics of the edge-on ram pressure stripped galaxy NGC 4330

M. M. Sardaneta, P. Amram, A. Boselli +18

Using the VESTIGE survey, a deep narrow-band H imaging survey of the Virgo cluster carried on at the CFHT with MegaCam, we discovered a long diffuse tail of ionised gas in the e…

astro-ph.GA2021★ 95 cited

ALMA-IMF I -- Investigating the origin of stellar masses: Introduction to the Large Program and first results

F. Motte, S. Bontemps, T. Csengeri +61

The ALMA-IMF Large Program imaged a total noncontiguous area of 53pc2, covering 15 extreme, nearby protoclusters of the Milky Way. They were selected to span relevant early protocl…

astro-ph.GA2021★ 48 cited

The dark mass signature in the orbit of S2

Gernot Heißel, Thibaut Paumard, Guy Perrin +1

Aims. We explore a strategy for how the Schwarzschild and mass precessions can be separated from each other despite their secular interference, by pinpointing their signatures with…

astro-ph.GA2021

Burton's Curse: The Impact of Bulk Flows on the Galactic Longitude-Velocity Diagram and the Illusion of a Continuous Perseus Arm

J. E. G. Peek, Kirill Tchernyshyov, Marc-Antoine Miville-Deschenes

In this work we demonstrate that the Perseus Arm is not a continuous structure of molecular gas in the second quadrant. We first show that the observed, distanced-resolved velocity…

astro-ph.GA2021★ 287 cited

The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits

GRAVITY Collaboration, R. Abuter, N. Aimar +62

The stars orbiting the compact radio source Sgr A* in the Galactic Centre are precision probes of the gravitational field around the closest massive black hole. In addition to adap…

astro-ph.GA2021★ 35 cited

Deep Images of the Galactic Center with GRAVITY

GRAVITY Collaboration, R. Abuter, N. Aimar +65

Stellar orbits at the Galactic Center provide a very clean probe of the gravitational potential of the supermassive black hole. They can be studied with unique precision, beyond th…

astro-ph.GA2021

KAgoshima Galactic Object survey with Nobeyama 45-metre telescope by Mapping in Ammonia lines (KAGONMA): Star formation feedback on dense molecular gas in the W33 complex

Takeru Murase, Toshihiro Handa, Yushi Hirata +5

We present the results of NH3 (1,1), (2,2) and (3,3) and H2O maser simultaneous mapping observations toward the high-mass star-forming region W33 with the Nobeyama 45-m radio teles…

astro-ph.GA2021★ 42 cited

GASKAP-HI Pilot Survey Science I: ASKAP Zoom Observations of HI Emission in the Small Magellanic Cloud

N. M. Pingel, J. Dempsey, N. M. McClure-Griffiths +53

We present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Aus…

astro-ph.GA2021

Galactic Star Formation with NIKA2 (GASTON): Evidence of mass accretion onto dense clumps

A. J. Rigby, R. Adam, P. Ade +49

High-mass stars () play a crucial role in the evolution of galaxies, and so it is imperative that we understand how they are formed. We have used the New…

astro-ph.GA2021★ 13 cited

Differential attenuation in star-forming galaxies at 0.3 1.5 in the SHARDS/CANDELS field

L. Rodríguez-Muñoz, G. Rodighiero, P. G. Pérez-González +21

We use a sample of 706 galaxies, selected as [OII]3727 ([OII]) emitters in the Survey for High- Absorption Red and Dead Sources (SHARDS) on the CANDELS/GOODS-N field, to stud…

astro-ph.GA2021★ 39 cited

ALMA-IMF II -- investigating the origin of stellar masses: Continuum Images and Data Processing

A. Ginsburg, T. Csengeri, R. Galván-Madrid +49

We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen den…

astro-ph.GA2021★ 13 cited

Discovery of Strongly Lensed Quasars in the Ultraviolet Near Infrared Optical Northern Survey (UNIONS)

J. H. H. Chan, C. Lemon, F. Courbin +13

We report the discovery of five new doubly-imaged lensed quasars from the first 2500 square degrees of the ongoing Canada-France Imaging Survey (CFIS), which is a component of the…

astro-ph.GA2021★ 1 cited

A SPHERE survey of self-shadowed planet-forming disks

A. Garufi, C. Dominik, C. Ginski +20

To date, nearly two hundred planet-forming disks have been imaged with high resolution. Our propensity to study bright and extended objects is however biasing our view of the disk…

astro-ph.GA2021★ 21 cited

Self-generated ultraviolet radiation in molecular shock waves II. CH+ and the interpretation of emission from shock ensembles

Andrew Lehmann, Benjamin Godard, Gillaume Pineau des Forêts +2

Shocks, modelled over a broad range of parameters, are used to construct a new tool to deduce the mechanical energy and physical conditions from observed atomic or molecular emissi…

astro-ph.GA2021★ 42 cited

Mapping the magnetic field in the Taurus/B211 filamentary cloud with SOFIA HAWC+ and comparing with simulation

Pak Shing Li, Enrique Lopez-Rodriguez, Hamza Ajeddig +4

Optical and infrared polarization mapping and recent Planck observations of the filamentary cloud L1495 in Taurus show that the large-scale magnetic field is approximately perpendi…

astro-ph.GA2021★ 32 cited

[CII] line intensity mapping the epoch of reionization with the Prime-Cam on FYST

C. Karoumpis, B. Magnelli, E. Romano-Díaz +2

We predict the three-dimensional intensity power spectrum (PS) of the [CII] 158m line throughout the epoch of (and post) reionization at redshifts from 3.5 to 8. We…

astro-ph.GA2021★ 1 cited

Pilot study and early results of the Cosmic Filaments and Magnetism Survey with Nenufar: the Coma cluster field

Bonnassieux Etienne, Evangelia Tremou, Julien N. Girard +9

NenuFAR, the New Extension in Nancay Upgrading LOFAR, is currently in its early science phase. It is in this context that the Cosmic Filaments and Magnetism Pilot Survey is observi…

astro-ph.GA2021★ 19 cited

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE).XII. Ionised gas emission in the inner regions of lenticular galaxies

A. Boselli, M. Fossati, A. Longobardi +24

As part of the VESTIGE survey, a blind narrow-band Ha+[NII] imaging survey of the Virgo cluster carried out with MegaCam at the CFHT, we discovered 8 massive lenticular galaxies wi…

astro-ph.GA2021★ 130 cited

The MeerKAT Galaxy Cluster Legacy Survey I. Survey Overview and Highlights

K. Knowles, W. D. Cotton, L. Rudnick +148

MeerKAT's large number of antennas, spanning 8 km with a densely packed 1 km core, create a powerful instrument for wide-area surveys, with high sensitivity over a wide range of an…

astro-ph.GA2021★ 10 cited

XXL-HSC: An updated catalogue of high-redshift () X-ray AGN in the XMM-XXL northern field. Constraints on the bright end of the soft logN-logS

E. Pouliasis, I. Georgantopoulos, A. Ruiz +12

X-rays offer a reliable method to identify Active Galactic Nuclei (AGN). However, in the high-redshift Universe X-ray AGN are poorly sampled due to their relatively low space densi…

astro-ph.GA2021★ 1 cited

Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946

G. Ejlali, R. Adam, P. Ade +54

Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength du…

astro-ph.GA2021★ 10 cited

Jet-triggered star formation in young radio galaxies

Chetna Duggal, Christopher O'Dea, Stefi Baum +7

Emission in the ultraviolet continuum is a salient signature of the hot, massive and consequently short-lived, stellar population that traces recent or ongoing star formation. With…

astro-ph.GA2021★ 8 cited

Galactic star formation with NIKA2 (GASTON): Filament convergence and its link to star formation

N. Peretto, R. Adam, P. Ade +45

In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars. In s…

astro-ph.GA2021★ 139 cited

Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

Michael Janssen, Heino Falcke, Matthias Kadler +236

Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimeter wavelengths have the power to reveal the launching and initial collimation region of e…