output
19952026
most citedGaia Photometric Science Alerts

134 citations

Showing 2022Show all

48 papers · 1 filter

astro-ph.SR2022★ 8 cited

Isotopic ratios for C, N, Si, Al, and Ti in C-rich presolar grains from massive stars

Jordan Schofield, Marco Pignatari, Richard J Stancliffe +1

Certain types of silicon carbide (SiC) grains, e.g., SiC-X grains, and low density (LD) graphites are C-rich presolar grains that are thought to have condensed in the ejecta of cor…

astro-ph.EP2022★ 5 cited

The equilibrium shape of (65) Cybele: primordial or relic of a large impact?

M. Marsset, M. Brož, J. Vermersch +24

Cybele asteroids constitute an appealing reservoir of primitive material genetically linked to the outer Solar System, and the physical properties of the largest members can be rea…

astro-ph.SR2022★ 8 cited

High-resolution spectroscopic analysis of four new chemically peculiar stars

M. P. Roriz, C. B. Pereira, S. Junqueira +3

We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack comprehensive analyses at high spe…

astro-ph.SR2022★ 45 cited

The Mass Accretion Rate and Stellar Properties in Class I Protostars

Eleonora Fiorellino, Lukasz Tychoniec, Fernando Cruz-Saenz de Miera +5

Stars collect most of their mass during the protostellar stage, yet the accretion luminosity and stellar parameters, which are needed to compute the mass accretion rate, are poorly…

astro-ph.EP2022★ 10 cited

A sub-Neptune planet around TOI-1695 discovered and characterized with SPIRou and TESS

F. Kiefer, G. Hébrard, E. Martioli +39

TOI-1695 is a V-mag=13 M-dwarf star from the northern hemisphere at 45pc from the Sun, around which a 3.134-day periodic transit signal from a super-Earth candidate was identif…

astro-ph.SR2022★ 4 cited

Type II and anomalous Cepheids in the Kepler K2 mission

Monika I. Jurkovic, Emese Plachy, László Molnár +4

We present the results of the analysis of Type II and anomalous Cepheids using the data from the Kepler K2 mission. The precise light curves of these pulsating variable stars are t…

astro-ph.SR2022★ 1 cited

Accretion process, magnetic fields, and apsidal motion in the pre-main sequence binary DQ Tau

Kim Pouilly, Oleg Kochukhov, Ágnes Kóspál +3

Classical T Tauri stars (CTTSs) are young stellar objects that accrete materials from their accretion disc influenced by their strong magnetic field. The magnetic pressure truncate…

astro-ph.SR2022★ 18 cited

Photometric and spectroscopic study of the EXor-like eruptive young star Gaia19fct

Sunkyung Park, Ágnes Kóspál, Péter Ábrahám +19

Gaia19fct is one of the Gaia-alerted eruptive young stars that has undergone several brightening events. We conducted monitoring observations using multi-filter optical and near-in…

astro-ph.HE2022★ 36 cited

A JWST Near- and Mid-Infrared Nebular Spectrum of the Type Ia Supernova 2021aefx

Lindsey A. Kwok, Saurabh W. Jha, Tea Temim +55

We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at days past maximum light. Our Nea…

astro-ph.SR2022★ 6 cited

Mid-infrared time-domain study of recent dust production events in the extreme debris disc of TYC 4209-1322-1

A. Moór, P. Ábrahám, Á. Kóspál +23

Extreme debris discs are characterized by unusually strong mid-infrared excess emission, which often proves to be variable. The warm dust in these discs is of transient nature and…

astro-ph.EP2022★ 10 cited

Light curves of transneptunian objects from the K2 mission of the Kepler Space Telescope

Viktória Kecskeméthy, Csaba Kiss, Róbert Szakáts +10

The K2 mission of the Kepler Space Telescope allowed the observations of light curves of small solar system bodies throughout the whole Solar system. In this paper we present the r…

nucl-ex2022★ 39 cited

Deep underground laboratory measurement of C(,)O in the Gamow windows of the - and -processes

B. Gao, T. Y. Jiao, Y. T. Li +71

The C(,)O reaction is the main neutron source for the slow-neutron-capture (s-) process in Asymptotic Giant Branch stars and for the intermediate (i-) process.…

astro-ph.HE2022★ 8 cited

JWST Imaging of the Cartwheel Galaxy Reveals Dust Associated with SN 2021afdx

Griffin Hosseinzadeh, David J. Sand, Jacob E. Jencson +12

We present near- and mid-infrared (0.9-18 m) photometry of supernova (SN) 2021afdx, which was imaged serendipitously with the James Webb Space Telescope (JWST) as part of its Ea…

astro-ph.SR2022★ 15 cited

The relation between the Mass Accretion Rate and the Disk Mass in Class I Protostars

Eleonora Fiorellino, Lukasz Tychoniec, Carlo F. Manara +5

The evidence of a relation between the mass accretion rate and the disk mass is established for young, Class II pre-main sequence stars. This observational result opened an avenue…

astro-ph.SR2022★ 9 cited

Accretion and extinction variations in the low-mass pre-main sequence binary system WX Cha

Eleonora Fiorellino, Gabriella Zsidi, Agnes Kospal +5

Light curves of young star systems show photometric variability due to different kinematic, and physical processes. One of the main contributors to the photometric variability is t…

astro-ph.SR2022★ 6 cited

Period-Colour and Amplitude-Colour relations for OGLE- Scuti stars in the Galactic Bulge and LMC

Mami Deka, Shashi M. Kanbur, Sukanta Deb +4

We present an analysis on the behaviour of the Galactic bulge and the Large Magellanic Cloud (LMC) Scuti stars in terms of period-colour and amplitude-colour (PCAC) relations a…

astro-ph.SR2022★ 1 cited

A gap at 1 au in the disk of DI Cha A revealed by infrared interferometry

Tímea Juhász, Péter Ábrahám, Attila Moór +6

DI Cha A is K0-type pre-main sequence star, the brightest component of a quadruple stellar system. Here we report on a detailed study of this star based on archival VLTI/MIDI and V…

astro-ph.SR2022★ 42 cited

Towards a comprehensive view of accretion, inner disks, and extinction in classical T Tauri stars: an ODYSSEUS study of the Orion OB1b association

Caeley V. Pittman, Catherine C. Espaillat, Connor E. Robinson +21

The coevolution of T Tauri stars and their surrounding protoplanetary disks dictates the timescales of planet formation. In this paper, we present magnetospheric accretion and inne…

astro-ph.GA2022★ 8 cited

Enrichment of the Galactic disc with neutron-capture elements: Gd, Dy, and Th

T. Mishenina, M. Pignatari, T. Gorbaneva +4

The study of the origin of heavy elements is one of the main goals of nuclear astrophysics. In this paper, we present new observational data for the heavy -process elements gado…

astro-ph.SR2022★ 5 cited

Locating dust and molecules in the inner circumstellar environment of R~Sculptoris with MATISSE

Julien Drevon, Florentin Millour, Pierre Cruzalèbes +49

AGB stars are one of the main sources of dust production in the Galaxy. However, it is not clear what this process looks like and where the dust is condensing in the circumstellar…

astro-ph.EP2022★ 53 cited

TOI-1452 b: SPIRou and TESS reveal a super-Earth in a temperate orbit transiting an M4 dwarf

Charles Cadieux, René Doyon, Mykhaylo Plotnykov +53

Exploring the properties of exoplanets near or inside the radius valley provides insights on the transition from the rocky super-Earths to the larger, hydrogen-rich atmosphere mini…

astro-ph.SR2022★ 4 cited

Origin of Plutonium-244 in the Early Solar System

Maria Lugaro, Andrés Yagüe López, Benjámin Soós +5

We investigate the origin in the early Solar System of the short-lived radionuclide 244Pu (with a half life of 80 Myr) produced by the rapid (r) neutron-capture process. We conside…

astro-ph.SR2022★ 21 cited

PENELLOPE III. The peculiar accretion variability of XX Cha and its impact on the observed spread of accretion rates

R. A. B. Claes, C. F. Manara, R. Garcia-Lopez +17

The processes regulating protoplanetary disk evolution are constrained by studying how mass accretion rates scale with stellar and disk properties. The spread in these relations ca…

astro-ph.EP2022★ 14 cited

Power of wavelets in analyses of transit and phase curves in the presence of stellar variability and instrumental noise. II. Accuracy of the transit parameters

Szilárd Kálmán, Gyula M. Szabó, Szilárd Csizmadia

Context. Correlated noise in exoplanet light curves, such as noise from stellar activity, convection noise, and instrumental noise, distorts the exoplanet transit light curves and…