W. Kluźniak

Scrutinizing the 2020 multiwavelength outburst of PKS 0903 - 57 through observations with H.E.S.S․

A. Acharyya, F. Aharonian, F. Ait Benkhali, A. Alkan et autres

The blazar PKS 0903 - 57 has recently been classified as a flat spectrum radio quasar at a redshift of z=0.2621. In March and April 2020, Fermi -LAT and AGILE reported tremendous activity in high-energy γ rays with the flux increasing by …

H.E.S.S. detection of the PSR J0855−4644 nebula

F. Aharonian, H. Ashkar, M. Backes, R. Batzofin et autres

Context. HESS J0852−463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0−4622) with a shell-like morphology, commonly referred to as Vela Junior, and a pulsar named PSR J0855−4644. Pulsars are among …

Scrutinizing the 2020 multiwavelength outburst of PKS 0903 - 57 through observations with H.E.S.S․

A. Acharyya, F. Aharonian, F. Ait Benkhali, A. Alkan et autres

International audience

Scrutinizing the 2020 multiwavelength outburst of PKS 0903-57 through observations with H.E.S.S

A. Acharyya, F. Aharonian, F. Ait Benkhali, A. Alkan et autres

The blazar PKS 0903-57 has recently been classified as a flat spectrum radio quasar at a redshift of $z=0.2621$. In March and April 2020, Fermi-LAT and AGILE reported tremendous activity in high-energy $γ$ rays with the flux increasing by $\sim$2 orders of …

Scrutinizing the 2020 multiwavelength outburst of PKS 0903-57 through observations with H.E.S.S

A. Acharyya, F. Aharonian, F. Ait Benkhali, A. Alkan et autres

The blazar PKS 0903-57 has recently been classified as a flat spectrum radio quasar at a redshift of $z=0.2621$. In March and April 2020, Fermi-LAT and AGILE reported tremendous activity in high-energy $γ$ rays with the flux increasing by $\sim$2 orders of …

ie, de, fr, Afrique du Sud, gb, rs, pl, Namibie, au, sk, nl, am, at (code pays fourni par la source)

H.E.S.S. detection of the PSR J0855-4644 nebula

F. Aharonian, H. Ashka, M. Backes, R. Batzofin et autres

HESS J0852-463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0-4622) with a shell-like morphology, commonly referred to as Vela Junior, and a pulsar denoted PSR J0855-4644. Pulsars are among the …

no (code pays fourni par la source)

H.E.S.S. detection of the PSR J0855-4644 nebula

F. Aharonian, H. Ashkar, M. Backes, R. Batzofin et autres

HESS J0852-463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0-4622) with a shell-like morphology, commonly referred to as Vela Junior, and a pulsar denoted PSR J0855-4644. Pulsars are among the …

fr, de, at, pl, Afrique du Sud, au (code pays fourni par la source)

Prompt Searches for Very-high-energy γ -Ray Counterparts to IceCube Astrophysical Neutrino Alerts

(FACT Collaboration), (H.E.S.S. Collaboration), (MAGIC Collaboration), (VERITAS Collaboration) et autres

The search for sources of high-energy astrophysical neutrinos can be significantly advanced through a multimessenger approach, which seeks to detect the γ-rays that accompany neutrinos as they are produced at their sources. Multimessenger observations have so far provided the first evidence for …

H.E.S.S. detection of the PSR J0855−4644 nebula

F. Aharonian, H. Ashkar, F. Brun, Q. Remy et autres

Context. HESS J0852−463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0−4622) with a shell-like morphology, commonly referred to as Vela Junior, and a pulsar named PSR J0855−4644. Pulsars are among …

Prospects for $\gamma$-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array

The Cherenkov Telescope Array Consortium, Shotaro Abe, K. Abe, S Abe et autres

Galaxy clusters are expected to be dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly, they are excellent targets to search for signals of DM annihilation and decay at gamma-ray energies …

Prospects for $\\gamma$-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array

K. Abe, S. Abe, N.Alvarez-Crespo, V. Conforti et autres

Galaxy clusters are expected to be dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly, they are excellent targets to search for signals of DM annihilation and decay at gamma-ray energies …

fr (code pays fourni par la source)

Accretion disc backflow in resistive MHD simulations

R. Mishra, M. Čemeljić, W. Kluźniak

We investigate accretion onto a central star, with the size, rotation rate, and magnetic dipole of a young stellar object, to study the flow pattern (velocity and density) of the fluid within and outside of the disc. We perform resistive MHD simulations …