output
19932026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2021Show all

781 papers · 1 filter

hep-th2021★ 1 cited

The hand-made tail: Non-perturbative tails from multifield inflation

Ana Achucarro, Sebastian Cespedes, Anne-Christine Davis +1

It is becoming increasingly clear that large but rare fluctuations of the primordial curvature field, controlled by the tail of its probability distribution, could have dramatic ef…

cs.LG2021★ 18 cited

Dynamic Time Warping Clustering to Discover Socio-Economic Characteristics in Smart Water Meter Data

D. B. Steffelbauer, E. J. M. Blokker, S. G. Buchberger +2

Socio-economic characteristics are influencing the temporal and spatial variability of water demand - the biggest source of uncertainties within water distribution system modeling.…

astro-ph.GA2021★ 52 cited

Molecular Gas Properties and CO-to-H2 Conversion Factors in the Central Kiloparsec of NGC 3351

Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun +16

The CO-to-H conversion factor ($α_\rm{CO}$) is critical to studying molecular gas and star formation in galaxies. The value of $α_\rm{CO}$ has been found to vary within and bet…

astro-ph.GA2021★ 96 cited

Thermal imaging of dust hiding the black hole in the Active Galaxy NGC 1068

Violeta Gamez Rosas, Jacob W. Isbell, Walter Jaffe +49

In the widely accepted 'Unified Model' solution of the classification puzzle of Active Galactic Nuclei, the orientation of a dusty accretion torus around the central black hole dom…

astro-ph.GA2021★ 7 cited

VLA Snapshot Continuum Survey of FRI Quasar Candidates Selected from the LOFAR Two-Metre Sky Survey (LoTSS)

Gülay Gürkan, Judith Croston, Martin Hardcastle +3

The radiative and jet power in active galactic nuclei is generated by accretion of material on to supermassive galactic-centre black holes. For quasars, where the radiative power i…

astro-ph.GA2021★ 18 cited

Deep XMM-Newton Observations of an X-ray Weak, Broad Absorption Line Quasar at

Jinyi Yang, Xiaohui Fan, Feige Wang +14

We report X-ray observations of the most distant known gravitationally lensed quasar, J0439+1634 at , which is also a broad absorption line (BAL) quasar, using the XMM-Newt…

astro-ph.SR2021★ 12 cited

The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE

A. Chiavassa, K. Kravchenko, M. Montargès +50

Context. VX Sgr is a cool, evolved, and luminous red star whose stellar parameters are difficult to determine, which affects its classification. Aims. We aim to spatially resolve t…

astro-ph.EP2021★ 35 cited

Silicon in the dayside atmospheres of two ultra-hot Jupiters

D. Cont, F. Yan, A. Reiners +22

Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP…

astro-ph.GA2021★ 2 cited

HARMONI view of the host galaxies of active galactic nuclei around cosmic noon: Resolved stellar morpho-kinematics and the M- relation

Begoña Garcia-Lorenzo, Ana Monreal-Ibero, Miguel Pereira-Santaella +4

Context. The formation and evolution of galaxies appear linked to the growth of supermassive black holes, as evidenced by empirical scaling relations in nearby galaxies. Understand…

astro-ph.EP2021★ 73 cited

p-winds: an open-source Python code to model planetary outflows and upper atmospheres

Leonardo A. Dos Santos, Aline A. Vidotto, Shreyas Vissapragada +6

Atmospheric escape is considered to be one of the main channels for evolution in sub-Jovian planets, particularly in their early lives. While there are several hypotheses proposed…

astro-ph.SR2021★ 26 cited

Observational identification of a sample of likely recent Common-Envelope Events

Theo Khouri, Wouter Vlemmings, Daniel Tafoya +5

One of the most poorly understood stellar evolutionary paths is that of binary systems undergoing common-envelope evolution, when the envelope of a giant star engulfs the orbit of…

astro-ph.GA2021★ 9 cited

The MUSE-Faint survey. III. No large dark-matter cores and no significant tidal stripping in ultra-faint dwarf galaxies

Sebastiaan L. Zoutendijk, Mariana P. Júlio, Jarle Brinchmann +8

[Abridged] Aims. The lowest-mass galaxies, ultra-faint dwarf galaxies, promise unparalleled constraints on how feedback regulates galaxy formation, and on the small-scale matter po…

astro-ph.GA2021★ 15 cited

Methoxymethanol Formation Starting from CO-Hydrogenation

Jiao He, Mart Simons, Gleb Fedoseev +7

Methoxymethanol (CH3OCH2OH, MM) has been identified through gas-phase signatures in both high- and low-mass star-forming regions. This molecule is expected to form upon hydrogen ad…

astro-ph.HE2021★ 8 cited

Short time-scale X-ray spectral variability in the Seyfert 1 galaxy NGC 3783

D. Costanzo, M. Dadina, C. Vignali +9

We report on the X-ray time resolved spectral analysis of XMM-Newton observations of NGC 3783. The main goal is to detect transient features in the Fe K line complex, in order to s…

astro-ph.GA2021★ 38 cited

LoTSS Jellyfish Galaxies III. The first identification of jellyfish galaxies in the Perseus cluster

Ian D. Roberts, Reinout J. van Weeren, Roland Timmerman +4

In this paper we report the first identification of jellyfish galaxies in the Perseus cluster (Abell 426). We identified four jellyfish galaxies (LEDA 2191078, MCG +07-07-070, UGC…

astro-ph.GA2021★ 23 cited

Baryonic mass budgets for haloes in the EAGLE simulation, including ejected and prevented gas

Peter D. Mitchell, Joop Schaye

Feedback processes are expected to shape galaxy evolution by ejecting gas from galaxies and their associated dark matter haloes, and also by preventing diffuse gas from ever being…

math.OA2021

The Friedrichs angle and alternating projections in Hilbert -modules

Bram Mesland, Adam Rennie

Let be a -algebra, a Hilbert -module over and a pair of complemented submodules. We prove the -module version of von Neumann's alter…

astro-ph.GA2021★ 45 cited

The Prevalence of Galaxy Overdensities Around UV-Luminous Lyman Emitters in the Epoch of Reionization

E. Leonova, P. A. Oesch, Y. Qin +19

Before the end of the epoch of reionization, the Hydrogen in the Universe was predominantly neutral. This leads to a strong attenuation of Ly lines of galaxies in th…

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.EP2021★ 27 cited

Early planet formation in embedded protostellar disks: Setting the stage for the first generation of planetesimals

A. J. Cridland, G. P. Rosotti, B. Tabone +3

(Abridged) Recent surveys of young star formation regions have shown that the average Class II object does not have enough dust mass to make the cores of giant planets. Younger Cla…

cond-mat.str-el2021

Momentum-dependent scaling exponents of nodal self-energies measured in strange metal cuprates and modelled using semi-holography

S. Smit, E. Mauri, L. Bawden +13

The anomalous strange metal phase found in high- cuprates does not follow the conventional condensed-matter principles enshrined in the Fermi liquid and presents a great chall…

q-fin.PM2021★ 3 cited

Mesoscopic Structure of the Stock Market and Portfolio Optimization

Sebastiano Michele Zema, Giorgio Fagiolo, Tiziano Squartini +1

The idiosyncratic (microscopic) and systemic (macroscopic) components of market structure have been shown to be responsible for the departure of the optimal mean-variance allocatio…

astro-ph.HE2021★ 32 cited

Changing-look event in NGC 3516: continuum or obscuration variability?

Missagh Mehdipour, Gerard A. Kriss, Laura W. Brenneman +6

The Seyfert-1 galaxy NGC 3516 has undergone major spectral changes in recent years. In 2017 we obtained Chandra, NuSTAR, and Swift observations during its new low-flux state. Using…