η Carinae with Fermi-LAT: two full orbits and the third periastron
G Martí-Devesa, O Reimer - Astronomy & Astrophysics, 2021 - aanda.org
Context. Colliding-wind binaries are massive stellar systems featuring strong, interacting
winds. These binaries may be actual particle accelerators, making them variable γ-ray …
winds. These binaries may be actual particle accelerators, making them variable γ-ray …
Eta Carinae: A Tale of Two Periastron Passages
Abstract Since 2002, the far-ultraviolet (FUV) flux (1150–1680 Å) of Eta Carinae, monitored
by the Hubble Space Telescope/Space Telescope Imaging Spectrograph, has increased by …
by the Hubble Space Telescope/Space Telescope Imaging Spectrograph, has increased by …
The X-ray properties of Eta Carinae during its 2020 X-ray minimum
The massive binary system Eta Carinae is characterized by intense colliding winds that form
shocks and emit X-rays. The system is highly eccentric (e≃ 0.9), resulting in modulated X-ray …
shocks and emit X-rays. The system is highly eccentric (e≃ 0.9), resulting in modulated X-ray …
Discovery of a 310 Day Period from the Enshrouded Massive System NaSt1 (WR 122)
RM Lau, S Tinyanont, MJ Hankins… - The Astrophysical …, 2021 - iopscience.iop.org
We present optical and infrared (IR) light curves of NaSt1, also known as Wolf–Rayet 122,
with observations from Palomar Gattini-IR (PGIR), the Zwicky Transient Facility (ZTF), the …
with observations from Palomar Gattini-IR (PGIR), the Zwicky Transient Facility (ZTF), the …
Orbits and outflows of emission-line stars
D Grant - 2021 - ora.ox.ac.uk
The optical spectra of some stars exhibit spectral lines in emission, which is characteristic of
them having powerful radiatively driven winds. These stars are known as emission-line …
them having powerful radiatively driven winds. These stars are known as emission-line …