3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK377 papers
- Centre National de la Recherche ScientifiqueFR328 papers
- University of GroningenNL256 papers
- Instituto de Astrofísica de CanariasES218 papers
- Leiden UniversityNL201 papers
- University of AmsterdamNL199 papers
- Université Paris CitéFR193 papers
- National Institute for AstrophysicsIT192 papers
- Czech Academy of Sciences, Astronomical InstituteCZ181 papers
- Sorbonne UniversitéFR178 papers
- Max Planck Institute for AstronomyDE177 papers
- Goddard Space Flight CenterUS172 papers
57 papers · 1 filter
Optical light curves of light-weight supermassive black holes produced by the Zwicky Transient Facility Forced Photometry Service
Mariia Demianenko, Igor Chilingarian, Kirill Grishin +4
In this paper, we present an algorithm to correct optical light curves obtained using The Zwicky Transient Facility Forced Photometry Service and its application to the analysis of…
Radial Distribution of the Dust Comae of Comets 45P/Honda-Mrkos-Pajduusáková and 46P/Wirtanen
C. Lejoly, W. Harris, N. Samarasinha +21
There was an unprecedented opportunity to study the inner dust coma environment, where the dust and gas are not entirely decoupled, of comets 45P/Honda-Mrkos-Pajduusáková (45P/HMP)…
Estimating the ages of open star clusters from properties of their extended tidal tails
František Dinnbier, Pavel Kroupa, Ladislav Šubr +1
The most accurate current methods for determining the ages of open star clusters, stellar associations and stellar streams are based on isochrone fitting or the lithium depletion b…
Universal focal reducer for small telescopes
V. L. Afanasiev, V. R. Amirkhanyan, R. I. Uklein +4
This paper is devoted to the memory of Dr. Victor Afanasiev and his immense legacy. The report highlights the capabilities of two new instruments tested at the 1-meter Zeiss-1000 t…
GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star
Kristine W. F. Lam, Szilárd Csizmadia, Nicola Astudillo-Defru +75
Ultra-short-period (USP) exoplanets have orbital periods shorter than one day. Precise masses and radii of USPs could provide constraints on their unknown formation and evolution p…
Triply eclipsing triple stars in the northern TESS fields: TICs 193993801, 388459317 and 52041148
T. Borkovits, T. Mitnyan, S. A. Rappaport +23
In this work we report the discovery and analysis of three new triply eclipsing triple star systems found with the TESS mission during its observations of the northern skies: TICs…
Rotational excitation of HO cations by para-H: improved collisional data at low temperatures
S. Demes, François Lique, Alexandre Faure +3
The hydronium cation plays a crucial role in interstellar oxygen and water chemistry. While its spectroscopy was extensively investigated earlier, the collisional excitation of H$_…
Magnetic reconnection and plasmoid formation in three-dimensional accretion flows around black holes
Antonios Nathanail, Vasilis Mpisketzis, Oliver Porth +2
Magnetic reconnection is thought to be one of the main energy-dissipation mechanisms fueling energy to the plasma in the vicinity of a black hole. Indeed, plasmoids formed through…
Observational evidence for two-component distributions describing solar magnetic bright points
G. Berrios Saavedra, D. Utz, S. Vargas Dominguez +6
Context. High-resolution observations of the solar photosphere reveal the presence of fine structures, in particular the so-called magnetic bright points (MBPs), which are small-sc…
The Influence of the Peculiar Velocities of SNe Ia in Clusters of Galaxies on the Redshift Measurements
E. A. Balakina, M. V. Pruzhinskaya
The most intriguing question of modern astronomy is the question of our Universe formation. The Hubble diagram analysis with Type Ia Supernovae (SNe Ia) is widely used to estimate…
Is the orbit of the exoplanet WASP-43b really decaying? TESS and MuSCAT2 observations confirm no detection
Z. Garai, T. Pribulla, H. Parviainen +24
Up to now, WASP-12b is the only hot Jupiter confirmed to have a decaying orbit. The case of WASP-43b is still under debate. Recent studies preferred or ruled out the orbital decay…
The Solar Line Emission Dopplerometer project
J. -M. Malherbe, P. Mein, F. Sayede +4
Observations of the dynamics of solar coronal structures are necessary to investigate space weather phenomena and global heating of the corona. The profiles of high temperature lin…
Prominence instability and CMEs triggered by massive coronal rain in the solar atmosphere
Z. Vashalomidze, T. V. Zaqarashvili, V. Kukhianidze +3
Triggering process for prominence instability and consequent CMEs is not fully understood. Prominences are maintained by the Lorentz force against the gravity, therefore reduction…
Electron Irradiation and Thermal Chemistry Studies of Interstellar and Planetary Ice Analogues at the ICA Astrochemistry Facility
Duncan V. Mifsud, Zoltán Juhász, Péter Herczku +10
The modelling of molecular excitation and dissociation processes relevant to astrochemistry requires the validation of theories by comparison with data generated from laboratory ex…
The Ice Chamber for Astrophysics-Astrochemistry (ICA): A New Experimental Facility for Ion Impact Studies of Astrophysical Ice Analogues
Péter Herczku, Duncan V. Mifsud, Sergio Ioppolo +11
The Ice Chamber for Astrophysics-Astrochemistry (ICA) is a new laboratory end-station located at the Institute for Nuclear Research (Atomki) in Debrecen, Hungary. The ICA has been…
MIGHTEE-HI: The baryonic Tully-Fisher relation over the last billion years
Anastasia A. Ponomareva, Wanga Mulaudzi, Natasha Maddox +17
Using a sample of 67 galaxies from the MIGHTEE Survey Early Science data we study the HI-based baryonic Tully-Fisher relation (bTFr), covering a period of one billion years (…
APOGEE-2 Discovery of a Large Population of Relatively High-Metallicity Globular Cluster Debris
José G. Fernández-Trincado, Timothy C. Beers, Anna. B. A. Queiroz +13
We report the discovery of a new, chemically distinct population of relatively high-metallicity ([Fe/H] ) red giant stars with super-solar [N/Fe] () identifi…
Photometric Analysis of the OGLE Heartbeat Stars
Marcin Wrona, Piotr A. Kołaczek-Szymański, Milena Ratajczak +1
We present an analysis of 991 heartbeat stars (HBSs) from the OGLE Collection of Variable Stars (OCVS). The sample consists of 512 objects located toward the Galactic bulge (GB), 4…
X-ray signature of antistars in the Galaxy
A. E. Bondar, S. I. Blinnikov, A. M. Bykov +2
The existence of macroscopic objects from antimatter (antistars) is envisaged in some models of baryogenesis. Searches for antistars has been usually carried out in gamma-rays thro…
The water-ice feature in near-infrared disk-scattered light around HD 142527: Micron-sized icy grains lifted up to the disk surface?
Ryo Tazaki, Koji Murakawa, Takayuki Muto +2
We study the m scattering feature of water ice detected in the outer disk of HD 142527 by performing radiative transfer simulations. We show that an ice mass abundance at the…
Photometry and Long-Slit Spectroscopy of Split Comet C/2019 Y4 (ATLAS)
Oleksandra Ivanova, Igor Luk'yanyk, Dušan Tomko +1
We present an analysis of the photometric and spectroscopic observations of the split comet C/2019 Y4 (ATLAS). Observations were carried out on the 14th and 16th of April 2020 when…
The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS
Gy. M. Szabó, D. Gandolfi, A. Brandeker +78
AU Mic is a young planetary system with a resolved debris disc showing signs of planet formation and two transiting warm Neptunes near mean-motion resonances. Here we analyse three…
High Resolution Imaging of a Black Hole Shadow with Millimetron Orbit around Lagrange Point L2
S. F. Likhachev, A. G. Rudnitskiy, M. A. Shchurov +4
Imaging of the shadow around supermassive black hole (SMBH) horizon with a very long baseline interferometry (VLBI) is recognized recently as a powerful tool for experimental testi…
Light bending and X-ray echoes from behind a supermassive black hole
D. R. Wilkins, L. C. Gallo, E. Costantini +2
The innermost regions of accretion disks around black holes are strongly irradiated by X-rays that are emitted from a highly variable, compact corona, in the immediate vicinity of…