Natural dynamical reduction of the three-body problem. (arXiv:2107.12372v1 [astro-ph.EP]) <a href="http://arxiv.org/find/astro-ph/1/au:+Kol_B/0/1/0/all/0/1">Barak Kol</a> The three-body problem is a fundamental long-standing open problem, with applications in all branches of physics, including astrophysics, nuclear physics and particle physics. In general, conserved quantities allow to reduce the formulation of a mechanical problem to fewer degrees of freedom, a process […]

Seasonal Variation of Atmospheric Muons. (arXiv:2107.12913v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Gaisser_T/0/1/0/all/0/1">Thomas Gaisser</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Verpoest_S/0/1/0/all/0/1">Stef Verpoest</a> Competition between decay and re-interaction of charged pions and kaons depends on the temperature/density profile of the upper atmosphere. The amplitude and phase of the variations depend on the minimum muon energy required to reach the detector and on muon multiplicity in […]

Recognizing black holes in gravitational-wave observations: Challenges in telling apart impostors in mass-gap binaries. (arXiv:2004.05974v2 [gr-qc] UPDATED) <a href="http://arxiv.org/find/gr-qc/1/au:+Datta_S/0/1/0/all/0/1">Sayak Datta</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Phukon_K/0/1/0/all/0/1">Khun Sang Phukon</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Bose_S/0/1/0/all/0/1">Sukanta Bose</a> We study how by careful monitoring of the presence or absence of tidal deformability (TD) and tidal-heating (TH) in the inspiral signal of compact object binaries in ground-based […]

Evidence for quark-matter cores in massive neutron stars. (arXiv:1903.09121v2 [astro-ph.HE] UPDATED) <a href="http://arxiv.org/find/astro-ph/1/au:+Annala_E/0/1/0/all/0/1">Eemeli Annala</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gorda_T/0/1/0/all/0/1">Tyler Gorda</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kurkela_A/0/1/0/all/0/1">Aleksi Kurkela</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nattila_J/0/1/0/all/0/1">Joonas N&#xe4;ttil&#xe4;</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Vuorinen_A/0/1/0/all/0/1">Aleksi Vuorinen</a> The theory governing the strong nuclear force, Quantum Chromodynamics, predicts that at sufficiently high energy densities hadronic nuclear matter undergoes a deconfinement transition to a new phase of quarks […]

Dust Grain Growth at High Redshift: Starburst-driven CMB-Dark Supershells. (arXiv:2107.12995v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Martinez_Gonzalez_S/0/1/0/all/0/1">Sergio Mart&#xed;nez-Gonz&#xe1;lez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Silich_S/0/1/0/all/0/1">Sergiy Silich</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tenorio_Tagle_G/0/1/0/all/0/1">Guillermo Tenorio-Tagle</a> We present a novel scenario for the growth of dust grains in galaxies at high-redshift ($zsim 6$). In our model, the mechanical feedback from massive star clusters evolving within high-density pre-enriched media allows to pile-up […]

Imprints of cosmological tensions in reconstructed gravity. (arXiv:2107.12992v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Pogosian_L/0/1/0/all/0/1">Levon Pogosian</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Raveri_M/0/1/0/all/0/1">Marco Raveri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Koyama_K/0/1/0/all/0/1">Kazuya Koyama</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Martinelli_M/0/1/0/all/0/1">Matteo Martinelli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Silvestri_A/0/1/0/all/0/1">Alessandra Silvestri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhao_G/0/1/0/all/0/1">Gong-Bo Zhao</a> The late-time modifications of the standard $Lambda$ Cold Dark Matter ($Lambda$CDM) cosmological model can be parameterized by three time-dependent functions describing the expansion history of the Universe and […]

A joint reconstruction of dark energy and modified growth evolution. (arXiv:2107.12990v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Raveri_M/0/1/0/all/0/1">Marco Raveri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pogosian_L/0/1/0/all/0/1">Levon Pogosian</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Koyama_K/0/1/0/all/0/1">Kazuya Koyama</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Martinelli_M/0/1/0/all/0/1">Matteo Martinelli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Silvestri_A/0/1/0/all/0/1">Alessandra Silvestri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhao_G/0/1/0/all/0/1">Gong-Bo Zhao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Li_J/0/1/0/all/0/1">Jian Li</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Peirone_S/0/1/0/all/0/1">Simone Peirone</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zucca_A/0/1/0/all/0/1">Alex Zucca</a> We present the first combined non-parametric reconstruction of the three time-dependent functions that capture departures from […]

Free-free absorption in hot relativistic flows: application to fast radio bursts. (arXiv:2107.12989v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Kundu_E/0/1/0/all/0/1">Esha Kundu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhang_B/0/1/0/all/0/1">Bing Zhang</a> Magnetic flares create hot relativistic shocks outside the light cylinder radius of a magnetised star. Radio emission produced in such a shock or at a radius smaller than the shock undergoes free-free absorption while passing through […]

Gamma-rays from young radio galaxies and quasars. (arXiv:2107.12963v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Principe_G/0/1/0/all/0/1">Giacomo Principe</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Venere_L/0/1/0/all/0/1">Leonardo Di Venere</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Orienti_M/0/1/0/all/0/1">Monica Orienti</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Migliori_G/0/1/0/all/0/1">Giulia Migliori</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+DAmmando_F/0/1/0/all/0/1">Filippo D&#x27;Ammando</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mazziotta_M/0/1/0/all/0/1">Mario Nicola Mazziotta</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Giroletti_M/0/1/0/all/0/1">Marcello Giroletti</a> According to radiative models, radio galaxies and quasars are predicted to produce gamma rays from the earliest stages of their evolution. Exploring their […]

Introducing a Real-time Interactive GUI Tool for Visualization of Galaxy Spectra. (arXiv:2107.12949v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Leung_H/0/1/0/all/0/1">Ho-Hin Leung</a> (1), <a href="http://arxiv.org/find/astro-ph/1/au:+Wild_V/0/1/0/all/0/1">Vivienne Wild</a> (1), <a href="http://arxiv.org/find/astro-ph/1/au:+Carnall_A/0/1/0/all/0/1">Adam Carnall</a> (2), <a href="http://arxiv.org/find/astro-ph/1/au:+Papathomas_M/0/1/0/all/0/1">Michail Papathomas</a> (3) ((1) SUPA, School of Physics &amp; Astronomy, University of St Andrews, (2) SUPA, Institute for Astronomy, University of Edinburgh, (3) School of Mathematics and Statistics, University […]

Production of a chiral magnetic anomaly with emerging turbulence and mean-field dynamo action. (arXiv:2107.12945v1 [physics.plasm-ph]) <a href="http://arxiv.org/find/physics/1/au:+Schober_J/0/1/0/all/0/1">Jennifer Schober</a>, <a href="http://arxiv.org/find/physics/1/au:+Rogachevskii_I/0/1/0/all/0/1">Igor Rogachevskii</a>, <a href="http://arxiv.org/find/physics/1/au:+Brandenburg_A/0/1/0/all/0/1">Axel Brandenburg</a> In relativistic magnetized plasmas, asymmetry in the number densities of left- and right-handed fermions, i.e., a non-zero chiral chemical potential mu_5, leads to an electric current along the magnetic field. This […]

Non-Axisymmetric Precession of Magnetars and Fast Radio Bursts. (arXiv:2107.12911v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Wasserman_I/0/1/0/all/0/1">Ira Wasserman</a> (1 and 2), <a href="http://arxiv.org/find/astro-ph/1/au:+Cordes_J/0/1/0/all/0/1">James M. Cordes</a> (1), <a href="http://arxiv.org/find/astro-ph/1/au:+Chatterjee_S/0/1/0/all/0/1">Shami Chatterjee</a> (1), <a href="http://arxiv.org/find/astro-ph/1/au:+Batra_G/0/1/0/all/0/1">Gauri Batra</a> (2) ((1) Cornell Center for Astrophysics and Planetary Sciences, Cornell University, (2) Laboratory for Elementary Particle Physics, Cornell University) The repeating FRBs 180916.J0158 and 121102 are visible […]

Classification of astrophysical events from gravitational wave signature. (arXiv:2008.06550v2 [astro-ph.HE] UPDATED) <a href="http://arxiv.org/find/astro-ph/1/au:+Singh_S/0/1/0/all/0/1">Shashwat Singh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Singh_A/0/1/0/all/0/1">Amitesh Singh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Prajapati_A/0/1/0/all/0/1">Ankul Prajapati</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pathak_K/0/1/0/all/0/1">Kamlesh N Pathak</a> In recent years, improvements in Deep Learning techniques towards Gravitational Wave astronomy have led to a significant rise in various classification algorithm development. A few of these algorithms have been successfully […]

High resolution H-alpha imaging of the Northern Galactic Plane, and the IGAPS images database. (arXiv:2107.12897v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Greimel_R/0/1/0/all/0/1">R. Greimel</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Drew_J/0/1/0/all/0/1">J. E. Drew</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Monguio_M/0/1/0/all/0/1">M. Mongui&#xf3;</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ashley_R/0/1/0/all/0/1">R. P. Ashley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Barentsen_G/0/1/0/all/0/1">G. Barentsen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Eisloffe_J/0/1/0/all/0/1">J. Eisl&#xf6;ffe</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mampaso_A/0/1/0/all/0/1">A. Mampaso</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Morris_R/0/1/0/all/0/1">R. A. H.Morris</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Naylor_T/0/1/0/all/0/1">T. Naylor</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Roe_C/0/1/0/all/0/1">C. Roe</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sabin_L/0/1/0/all/0/1">L. Sabin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stecklum_B/0/1/0/all/0/1">B. Stecklum</a>, […]

Polarization properties of FRB 20201124A from detections with the 100-m Effelsberg Radio Telescope. (arXiv:2107.12892v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Hilmarsson_G/0/1/0/all/0/1">G. H. Hilmarsson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Spitler_L/0/1/0/all/0/1">L. G. Spitler</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Main_R/0/1/0/all/0/1">R. A. Main</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Li_D/0/1/0/all/0/1">D. Z. Li</a> The repeating FRB source, FRB 20201124A, was found to be highly active in March and April 2021. We observed the source with the Effelsberg […]

Electromagnetic Proton Beam Instabilities in the Inner Heliosphere: Energy Transfer Rate, Radial Distribution, and Effective Excitation. (arXiv:2107.12883v1 [astro-ph.SR]) <a href="http://arxiv.org/find/astro-ph/1/au:+Liu_W/0/1/0/all/0/1">Wen Liu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhao_J/0/1/0/all/0/1">Jinsong Zhao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Xie_H/0/1/0/all/0/1">Huasheng Xie</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yao_Y/0/1/0/all/0/1">Yuhang Yao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wu_D/0/1/0/all/0/1">Dejin Wu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lee_L/0/1/0/all/0/1">L. C. Lee</a> Differential flows among different ion species are often observed in the solar wind, and such ion differential flows […]

Empirical Assessment of Aperiodic and Periodic Radio Bursts from Young Precessing Magnetars. (arXiv:2107.12874v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Cordes_J/0/1/0/all/0/1">J. M. Cordes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wasserman_I/0/1/0/all/0/1">I. Wasserman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chatterjee_S/0/1/0/all/0/1">Shami Chatterjee</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Batra_G/0/1/0/all/0/1">Gauri Batra</a> We analyze the slow periodicities identified in burst sequences from FRB 121102 and FRB 180916 with periods of about 16 and 160 d, respectively, while also addressing the […]

Radio study of HESS J1857+026. Gamma-rays from a superbubble?. (arXiv:2107.12849v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Petriella_A/0/1/0/all/0/1">Alberto Petriella</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duvidovich_L/0/1/0/all/0/1">Laura Duvidovich</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Giacani_E/0/1/0/all/0/1">Elsa Giacani</a> Aims. We provide new insights into the nature of HESS J1857+026, a very-high-energy {gamma}-ray source whose complex morphology in the TeV band was attributed to the superposition of two distinct sources. Methods. We performed radio […]

Principal component analysis of the Chandra ACIS gain. (arXiv:2107.12810v1 [astro-ph.IM]) <a href="http://arxiv.org/find/astro-ph/1/au:+Gunther_H/0/1/0/all/0/1">Hans Moritz G&#xfc;nther</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bogdan_A/0/1/0/all/0/1">&#xc1;kos Bogd&#xe1;n</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Durham_N/0/1/0/all/0/1">Nick Durham</a> Up to 2020, the Chandra ACIS gain has been calibrated using the External Calibration Source (ECS). The ECS consists of an Fe-55 radioactive source and is placed in the ACIS housing such that all chips […]

Probing PeV scale SUSY-breaking with Satellite Galaxies and Primordial Gravitational Waves. (arXiv:2107.12804v1 [hep-ph]) <a href="http://arxiv.org/find/hep-ph/1/au:+Choi_G/0/1/0/all/0/1">Gongjun Choi</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Jinno_R/0/1/0/all/0/1">Ryusuke Jinno</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Yanagida_T/0/1/0/all/0/1">Tsutomu T. Yanagida</a> We study an inevitable cosmological consequence in PeV scale SUSY-breaking scenarios. We focus on the SUSY-breaking scale corresponding to the gravitino mass $m_{3/2}=100{rm eV}-1{rm keV}$. We argue that the presence of an […]