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Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT The discovery of radio‐quiet, x‐ray thermally emitting isolated neutron stars (XINSs) in the ROSAT All‐Sky Survey revealed a previously overlooked component of the neutron star population. Advancements in x‐ray instrumentation and the availability of deep, wide‐area optical surveys now enable us to explore XINSs at fainter x‐ray fluxes and ...
Adriana Mancini Pires +11 more
wiley +1 more source
The Astrophysical JournalWe report the discovery of a new binary galaxy cluster merger, the Champagne Cluster (RM J130558.9+263048.4), using a detection method that identifies dynamically active clusters in the redMaPPer Sloan Digital Sky Survey DR8 photometric galaxy cluster ...
Faik Bouhrik +2 more
doaj +1 more source
Some contributions of MAGIC to the physics ofcosmic rays
EPJ Web of Conferences, 2013 Cosmic ray interactions can be investigated indirectly in γ ray astronomy, with the observation of spectral and morphological features of certain classes of sources.
Gozzini S.R.
doaj +1 more source
Extragalactic Astronomy with the VLTI: a new window on the Universe [PDF]
, 2003 Interferometry in the optical and near infrared has so far played a marginal role in Extragalactic Astronomy. Active Galactic Nuclei are the brightest and most compact extragalactic sources, nonetheless only a very limited number could be studied with ...
A. Marconi, R. Maiolino, R. Petrov
semanticscholar +1 more source
Beyond Accretion Limits: The Rise of Pulsating Gems
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT The discovery of several ultraluminous X‐ray sources exhibiting fast and rapidly evolving X‐ray pulsations unequivocally associates these sources with accreting neutron stars orbiting relatively massive companion stars (> 8M ⊙$$ {}_{\odot } $$).
Gian Luca Israel +26 more
wiley +1 more source
New Observational Recipes for Measuring Dynamical States of Galaxy Clusters
The Astrophysical JournalDuring cluster assembly, a cluster’s virialization process leaves behind signatures that can provide information on its dynamical state. However, no clear consensus yet exists on the best way to achieve this.
Hyowon Kim +6 more
doaj +1 more source
Modeling the Emission and Polarization Properties of Pulsating Ultraluminous X‐Ray Sources
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT Pulsating Ultraluminous X‐ray Sources (PULXs) are a class of extragalactic sources with high X‐ray luminosity, in excess of 1039$$ {10}^{39} $$ erg s−1$$ {\mathrm{s}}^{-1} $$, and showing pulsations that associate them with neutron stars accreting at a super‐Eddington rate.
S. Conforti +6 more
wiley +1 more source
Comparing Inside-out and Outside-in Quenching Modes in MaNGA Observation and MaNGIA Simulation
The Astrophysical JournalThis study probes the inside-out and outside-in quenching status of galaxies to understand the internal and external quenching sources responsible and their roles in galaxy evolution.
Hung-Yu Jian +7 more
doaj +1 more source
, 2008 Astrophysical neutrinos can be produced in proton interactions of charged cosmic rays with ambient photon or baryonic fields. Cosmic rays are observed in balloon, satellite and air shower experiments every day, from below 1e9 eV up to macroscopic ...
Achterberg A +14 more
core +1 more source
Advances in Astronomy, Volume 2025, Issue 1, 2025.The Chelyabinsk meteor entered Earth’s atmosphere on 15 February 2013, producing a shock wave that injured about 1500 people and damaged thousands of buildings. Despite its relatively large size (∼20 m), the progenitor asteroid approached Earth undetected. Its apparent radiant was too close to the Sun for standard ground‐based near‐Earth asteroid (NEA)
Thomas Müller +9 more
wiley +1 more source