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19912026
most citedAdvances in Quantum Metrology

3.9k citations

Showing 2022 · astro-ph.HEShow all

7 papers · 2 filters

astro-ph.HE2022★ 3 cited

A puzzling 2-hour X-ray periodicity in the 1.5-hour orbital period black widow PSR J1311-3430

Andrea De Luca, Martino Marelli, Sandro Mereghetti +3

Time-domain analysis of an archival XMM-Newton observation unveiled a very unusual variability pattern in the soft X-ray emission of PSR J1311-3430, a black widow millisecond pulsa…

astro-ph.HE2022★ 55 cited

Observability of the very-high-energy emission from GRB 221009A

Giorgio Galanti, Lara Nava, Marco Roncadelli +2

The LHAASO Collaboration detected the gamma ray burst GRB 221009A at energies above with a tail extending up to , whose spectral analysis has pres…

astro-ph.HE2022★ 14 cited

Two decades of X-ray observations of the isolated neutron star RX J1856.5-3754: detection of thermal and non-thermal hard X-rays and refined spin-down measurement

Davide De Grandis, Michela Rigoselli, Sandro Mereghetti +6

The soft X-ray pulsar RX J1856.5-3754 is the brightest member of a small class of thermally-emitting, radio-silent, isolated neutron stars. Its X-ray spectrum is almost indistingui…

astro-ph.HE2022★ 4 cited

AGILE Observations of GRB 220101A: A "New Year's Burst" with an Exceptionally Huge Energy Release

Alessandro Ursi, Marco Romani, Giovanni Piano +20

We report the AGILE observations of GRB 220101A, which took place at the beginning of 1st January 2022 and was recognized as one of the most energetic gamma-ray bursts (GRBs) ever…

astro-ph.HE2022★ 17 cited

The first 7 months of the 2020 X-ray outburst of the magnetar SGR J1935+2154

Alice Borghese, Francesco Coti Zelati, Gian Luca Israel +10

The magnetar SGR J1935+2154 underwent a new active episode on 2020 April 27-28, when a forest of hundreds of X-ray bursts and a large enhancement of the persistent flux were detect…

astro-ph.HE2022★ 2 cited

X-ray observation of the Roche-lobe filling white dwarf plus hot subdwarf system ZTF J213056.71+442046.5

S. Mereghetti, N. La Palombara, T. Kupfer +9

ZTF J213056.71+442046.5 is the prototype of a small class of recently discovered compact binaries composed of a white dwarf and a hot subdwarf that fills its Roche-lobe. Its orbita…

astro-ph.HE2022★ 9 cited

Recurrent X-ray flares of the black hole candidate in the globular cluster RZ 2109 in NGC 4472

A. Tiengo, P. Esposito, M. Toscani +7

We report on the systematic analysis of the X-ray observations of the ultra-luminous X-ray source XMMU J122939.7+075333 located in the globular cluster RZ 2109 in the Virgo galaxy…