Hubble Space Telescope UV and H$α$ Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b

Posted by klaurent Peking

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Yifan Zhou, Brendan P. Bowler, Kevin R. Wagner, Glenn Schneider, Dániel Apai | Summary: Recent discoveries of young exoplanets within their natal disks offer exciting opportunities to study ongoing planet formation. In particular, a planet’s mass accretion rate can be constrained by observing the accretion-induced excess […]


Continue.. Hubble Space Telescope UV and H$α$ Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b

Signatures of Recent Cosmic-Ray Acceleration in the High-Latitude $γ$-Ray Sky

Posted by klaurent Stanford

Kavli Affiliate: Troy A. Porter | First 5 Authors: Guðlaugur Jóhannesson, Troy A. Porter, , , | Summary: Cosmic-ray (CR) sources temporarily enhance the relativistic particle density in their vicinity over the background distribution accumulated from the Galaxy-wide past injection activity and propagation. If individual sources are close enough to the solar system, their localised […]


Continue.. Signatures of Recent Cosmic-Ray Acceleration in the High-Latitude $γ$-Ray Sky

Signatures of Recent Cosmic-Ray Acceleration in the High-Latitude $γ$-Ray Sky

Posted by klaurent Stanford

Kavli Affiliate: Troy A. Porter | First 5 Authors: Guðlaugur Jóhannesson, Troy A. Porter, , , | Summary: Cosmic-ray (CR) sources temporarily enhance the relativistic particle density in their vicinity over the background distribution accumulated from the Galaxy-wide past injection activity and propagation. If individual sources are close enough to the solar system, their localised […]


Continue.. Signatures of Recent Cosmic-Ray Acceleration in the High-Latitude $γ$-Ray Sky

Cosmological Evolution of the Formation Rate of Short Gamma-ray Bursts With and Without Extended Emission

Posted by klaurent Stanford

Kavli Affiliate: Vahe Petrosian | First 5 Authors: Maria Giovanna Dainotti, Vahe’ Petrosian, Luke Bowden, , | Summary: Originating from neutron star-neutron star (NS-NS) or neutron star-black hole (NS-BH) mergers, short gamma-ray bursts (SGRBs) are the first electromagnetic emitters associated with gravitational waves. This association makes the determination of SGRB formation rate (FR) a critical […]


Continue.. Cosmological Evolution of the Formation Rate of Short Gamma-ray Bursts With and Without Extended Emission