output
20022024
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations

Showing 2021Show all

153 papers · 1 filter

astro-ph.SR202130 cited

The Physical Properties of the SVS 13 Protobinary System: Two Circumstellar Disks and a Spiraling Circumbinary Disk in the Making

Ana K. Diaz-Rodriguez, Guillem Anglada, Guillermo Blázquez-Calero +13

We present VLA and ALMA observations of the close (0.3" = 90 au separation) protobinary system SVS 13. We detect two small circumstellar disks (radii 12 and 9 au in dus…

astro-ph.EP202120 cited

Spin-orbit coupling for close-in planets

Alexandre C. M. Correia, Jean-Baptiste Delisle

We study the spin evolution of close-in planets in multi-body systems and present a very general formulation of the spin-orbit problem. This includes a simple way to probe the spin…

astro-ph.EP202115 cited

Resurfacing processes constrained by crater distribution on Ryugu

Naofumi Takaki, Yuichiro Cho, Tomokatsu Morota +16

Understanding the geological modification processes on asteroids can provide information concerning their surface history. Images of small asteroids from spacecraft show a depletio…

physics.space-ph202123 cited

Spectrum of kinetic plasma turbulence at 0.3-0.9 astronomical units from the Sun

Olga Alexandrova, Vamsee Krishna Jagarlamudi, Petr Hellinger +3

We investigate spectral properties of turbulence in the solar wind that is a weakly collisional astrophysical plasma, accessible to in-situ observations. Using the Helios search co…

astro-ph.SR202119 cited

An absolute calibration of the near-infrared Period-Luminosity Relations of Type II Cepheids in the Milky Way and in the Large Magellanic Cloud

Piotr Wielgórski, Grzegorz Pietrzyński, Bogumił Pilecki +29

We present time-series photometry of 21 nearby Type II Cepheids in the near-infrared J, H and Ks passbands. We use this photometry, together with the Third Gaia Early Data Release…

astro-ph.SR20219 cited

Probing the low-mass end of the companion mass function for O-type stars

M. Reggiani, A. Rainot, H. Sana +6

Almost all massive stars are part of a binary system. Given the wide range of separations at which these companions are found, several observational techniques have been adopted to…