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19952026
Showing 2022Show all

415 papers · 1 filter

astro-ph.HE2022★ 58 cited

Accretion geometry of the neutron star low mass X-ray binary Cyg X-2 from X-ray polarization measurements

R. Farinelli, S. Fabiani, J. Poutanen +92

We report spectro-polarimetric results of an observational campaign of the bright neutron star low-mass X-ray binary Cyg X-2 simultaneously observed by IXPE, NICER and INTEGRAL. Co…

astro-ph.HE2022★ 19 cited

Timing analysis of the 2022 outburst of the accreting millisecond X-ray pulsar SAX J1808.43658: hints of an orbital shrinking

Giulia Illiano, Alessandro Papitto, Andrea Sanna +19

We present a pulse timing analysis of NICER observations of the accreting millisecond X-ray pulsar SAX J1808.43658 during the outburst that started on 2022 August 19. Similar to…

astro-ph.GA2022★ 18 cited

Multiple shock fronts in RBS 797: the Chandra window on shock heating in galaxy clusters

F. Ubertosi, M. Gitti, F. Brighenti +11

Using 427 ks of Chandra observations, we present a study of shock heating and ICM cooling in the galaxy cluster RBS 797. We discover three nested pairs of weak shocks at roug…

astro-ph.HE2022★ 28 cited

Search for Gamma-ray Spectral Lines from Dark Matter Annihilation up to 100 TeV towards the Galactic Center with MAGIC

MAGIC Collaboration, H. Abe, S. Abe +210

Line-like features in TeV -rays constitute a ''smoking gun'' for TeV-scale particle dark matter and new physics. Probing the Galactic Center region with ground-based Cherenkov t…

astro-ph.GA2022★ 15 cited

New Lyman-alpha Emitters in EGS: Evidence of an Extended Ionized Structure at

Intae Jung, Steven L. Finkelstein, Rebecca L. Larson +21

We perform a ground-based near-infrared spectroscopic survey using the Keck/MOSFIRE spectrograph to target Ly emission at from 61 galaxies to trace the ionization st…

astro-ph.GA2022★ 39 cited

V-LoTSS: The Circularly-Polarised LOFAR Two-metre Sky Survey

J. R. Callingham, T. W. Shimwell, H. K. Vedantham +44

We present the detection of 68 sources from the most sensitive radio survey in circular polarisation conducted to date. We use the second data release of the 144 MHz LOFAR Two-metr…