We report here on the discovery of supersonic Evershed downflows in the penumbra of a sunspot. These flows are shown to occur along spatially unresolved, very...
COLDz: A High Space Density of Massive Dusty Starburst Galaxies ∼1 Billion Years after the Big Bang
We report the detection of CO(J = 2 → 1) emission from three massive dusty starburst galaxies at z > 5 through molecular line scans in the NSF's Karl G. Jansky...
Collective pulsational velocity broadening due to gravity modes as a physical explanation for macroturbulence in hot massive stars
Aims. We aimed at finding a physical explanation for the occurrence of macroturbulence in the atmospheres of hot massive stars, a phenomenon found in...
Collision of protostellar jets in the star-forming region IC 1396N. Analysis of knot proper motions
Context. The bright-rimmed cloud IC 1396N is believed to host one of the few known cases where two bipolar CO outflows driven by young stellar objects collide...
Collision of Schoemaker-Levy 9 fragments A, E, H, L , Q1 with Jupiter: Mid-infrared light curves
Light curves of the 12 μm emission following the collision of Shoemaker-Levy 9 fragments A, E, H, L, Q1 with Jupiter are presented. Impacts F, P2, Q2, T, U were...
Collisional depolarization of molecular lines. Application to the SiO+H isotropic collisions
This paper reports the first theoretical study on the collisional depolarization and polarization transfer for rovibrational levels of diatomic molecules in the...
Collisional enhancement of H i Balmer lines in photoionized nebulae
Collisional excitation of neutral hydrogen atoms can significantly increase the intensity of Balmer lines with respect to pure recombination. If this effect is...
Collisional history of Ryugu's parent body from bright surface boulders
The asteroid (162173) Ryugu and other rubble-pile asteroids are likely re-accumulated fragments of much larger parent bodies that were disrupted by impacts...