output
20092026
most citedJADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

361 citations

Showing 2020 · astro-ph.SRShow all

16 papers · 2 filters

astro-ph.SR2020★ 42 cited

The White Dwarf Binary Pathways Survey IV: Three close white dwarf binaries with G-type secondary stars

M. S. Hernandez, M. R. Schreiber, S. G. Parsons +12

Constraints from surveys of post common envelope binaries (PCEBs) consisting of a white dwarf plus an M-dwarf companion have led to significant progress in our understanding of the…

astro-ph.SR2020★ 34 cited

Magnetic Field Line Random Walk and Solar Energetic Particle Path Lengths: Stochastic Theory and PSP/ISoIS Observation

R. Chhiber, W. H. Matthaeus, C. M. S. Cohen +21

Context:In 2020 May-June, six solar energetic ion events were observed by the Parker Solar Probe/ISoIS instrument suite at 0.35 AU from the Sun. From standard velocity-dispersion a…

astro-ph.SR2020

Spectroscopic long-term monitoring of RZ Cas -- Part I: Basic stellar and system parameters

H. Lehmann, A. Dervisoglu, D. E. Mkrtichian +3

RZ Cas is a short-period Algol-type system showing episodes of mass transfer and Delta Sct-like oscillations of its mass-gaining primary component. We analyse high-resolution spect…

astro-ph.SR2020★ 31 cited

Atomium: A high-resolution view on the highly asymmetric wind of the AGB star Pi1 Gruis. I. First detection of a new companion and its effect on the inner wind

Ward Homan, Miguel Montarges, Bannawit Pimpanuwat +35

The nebular circumstellar environments of cool evolved stars are known to harbour a rich morphological complexity of gaseous structures on different length scales. A large part of…

astro-ph.SR2020★ 28 cited

The white dwarf binary pathways survey V. The Gaia white dwarf plus AFGK binary sample and the identification of 23 close binaries

J. -J. Ren, R. Raddi, A. Rebassa-Mansergas +22

Close white dwarf binaries consisting of a white dwarf and an A, F, G or K type main sequence star, henceforth close WD+AFGK binaries, are ideal systems to understand the nature of…

astro-ph.SR2020★ 22 cited

Gaia18aen: First symbiotic star discovered by Gaia

J. Merc, J. Mikołajewska, M. Gromadzki +20

Besides the astrometric mission of the Gaia satellite, its repeated and high-precision measurements serve also as an all-sky photometric transient survey. The sudden brightenings o…

astro-ph.SR2020★ 132 cited

(Sub)stellar companions shape the winds of evolved stars

L. Decin, M. Montargès, A. M. S. Richards +32

Binary interactions dominate the evolution of massive stars, but their role is less clear for low- and intermediate-mass stars. The evolution of a spherical wind from an asymptotic…

astro-ph.SR2020★ 11 cited

An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450

Klaus Werner, Nicole Reindl, Lisa Löbling +5

UCAC2 46706450 is a late-type star with an ultraviolet (UV) excess. It was considered a candidate to establish a sample of FGK stars with white dwarf (WD) companions that can be us…

astro-ph.SR2020★ 39 cited

Salt, Hot Water, and Silicon Compounds Tracing Massive Twin Disks

Kei E. I. Tanaka, Yichen Zhang, Tomoya Hirota +9

We report results of 0.05"-resolution observations toward the O-type proto-binary system IRAS 16547-4247 with the Atacama Large Millimeter/submillimeter Array (ALMA). We present dy…

astro-ph.SR2020★ 23 cited

Spectroscopic properties of the dwarf nova-type cataclysmic variables observed by LAMOST

Han Zhongtao, Boonrucksar Soonthornthum, Qian Shengbang +5

Spectra of 76 known dwarf novae from the LAMOST survey were presented. Most of the objects were observed in quiescence, and about 16 systems have typical outburst spectra. 36 of th…

astro-ph.SR2020★ 3 cited

Analysis of Methanol Maser Flares in G107.298+5.63 andS255-NIRS3

M. D. Gray, S. Etoka, B. Pimpanuwat

A 3D maser model has been used to perform an inverse problem on the light curves from three high-amplitude maser flares, selected on the basis of contemporaneous infra-red observat…

astro-ph.SR2020★ 14 cited

Comprehensive Photometric Investigation of an Active Early K-type Contact System -- IL Cnc

N. -P. Liu, T. Sarotsakuchai, S. Rattanasoon +1

Comprehensive photometric investigation was carried out to the early K-type contact binary - IL Cnc. A few light curves from both ground-based telescopes and the Kepler space teles…

astro-ph.SR2020★ 31 cited

Spectroscopic and Photometric Periods of Six Ultracompact Accreting Binaries

Matthew J. Green, Thomas R. Marsh, Philip J. Carter +19

Ultracompact accreting binary systems each consist of a stellar remnant accreting helium-enriched material from a compact donor star. Such binaries include two related sub-classes,…

astro-ph.SR2020★ 6 cited

Maser Flares Driven by Variations in Pumping and Background Radiation

M. D. Gray, S. Etoka, A. Travis +1

We simulate maser flares by varying either the pump rate or the background level of radiation in a 3D model of a maser cloud. We investigate the effect of different cloud shapes, s…

astro-ph.SR2020★ 88 cited

Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger S190814bv

K. Ackley, L. Amati, C. Barbieri +151

On 2019 August 14, the LIGO and Virgo interferometers detected a high-significance event labelled S190814bv. Preliminary analysis of the GW data suggests that the event was likely…

astro-ph.SR2020★ 14 cited

Variable stars in the Sh 2-170 HII region

Tirthendu Sinha, Saurabh Sharma, A. K. Pandey +7

We present multi-epoch deep (20 mag) ~band photometric monitoring of the Sh 2-170 star-forming region to understand the variability properties of pre-main-sequence (PM…