Results 11 to 20 of about 1,415 (101)
LOFAR Discovery of a 23.5 s Radio Pulsar [PDF]
Astrophysical Journal, 2018 We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR Tied-Array All-Sky Survey (LOTAAS), an all-northern-sky survey for ...C. Tan, C. Bassa, S. Cooper, T. J. Dijkema, P. Esposito, J. Hessels, V. Kondratiev, M. Kramer, D. Michilli, S. Sanidas, T. Shimwell, B. Stappers, J. V. Leeuwen, I. Cognard, J. Grießmeier, A. Karastergiou, E. Keane, C. Sobey, P. W. J. B. C. F. Astrophysics, S. O. Physics, Astronomy, U. Manchester, Manchester, Uk, Astron, The Netherlands Institute for Radio Astronomy, The Netherlands., A. S. M. F. Astronomy, U. Amsterdam, Amsterdam, I. D. F. Cosmica, Milano, Italy, A. Centre, L. Institute, R. A. O. Sciences, Moscow, Russia., Max Planck Institut fur Radioastronomie, Germany, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Universit'e d'Orl'eansCNRS, France, Station de radioastronomie de Nanccay, O. Paris, Cnrsinsu, O. Astrophysics, Denys Wilkinson Building, Keble Road, Oxford, Department of Applied Physics, U. W. Cape, S. Africa, Electronics, Rhodes University, Ska Organisation, Jodrell Bank Observatory, I. C. F. R. A. R. -. C. University, Australia., C. Astronomy, S. Science +60 moresemanticscholar +1 more sourceHATS-60b–HATS-69b: 10 Transiting Planets from HATSouth [PDF]
Astronomical Journal, 2018 We report the discovery of 10 transiting extrasolar planets by the HATSouth survey. The planets range in mass from the super-Neptune HATS-62b, with , to the super-Jupiter HATS-66b, with , and in size from the Saturn HATS-69b, with , to the inflated ...J. Hartman, G. Bakos, D. Bayliss, J. Bento, W. Bhatti, R. Brahm, Z. Csubry, N. Espinoza, T. Henning, A. Jord'an, L. Mancini, K. Penev, M. Rabus, P. Sarkis, V. Suc, Miguel de Val-Borro, G. Zhou, B. Addison, P. Arriagada, R. P. Butler, J. Crane, S. Durkan, S. Shectman, T. Tan, I. Thompson, C. Tinney, D. Wright, J. L'az'ar, I. Papp, P. University, K. Observatory, U. Warwick, Australian National University, Center of Astro-Engineering UC Pontificia Universidad Cat Chile, I. D. A. -. P. U. C. Chile, M. I. O. Astrophysics, M. F. Astronomy, University of RomeTor Vergata, A. O. Turin, University of Dallas, Goddard Space Flight Center, Harvard-Smithsonian Cfa, M. S. University, Carnegie Dtm, Observatories of Carnegie, Queen's University, Perth Exoplanet Survey Telescope, Australian Centre for Astrobiology, University of Wales, Hungarian Astronomical Association +49 moresemanticscholar +1 more sourceThe Long-term Spectral Changes of Eta Carinae: Are they Caused by a Dissipating Occulter as Indicated by cmfgen Models? [PDF]
Astrophysical Journal, 2022 Eta Carinae (η Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed—there has been an increase in observed continuum fluxes and a decrease in Fe ii and H i emission-line ...A. Damineli, D. Hillier, F. Navarete, A. Moffat, G. Weigelt, M. Corcoran, T. Gull, N. Richardson, T. P. Ho, T. Madura, D. Espinoza-Galeas, H. Hartman, P. Morris, C. Pickett, I. Stevens, C. Russell, K. Hamaguchi, F. Jablonski, M. Teodoro, P. McGee, P. Cacella, B. Heathcote, K. Harrison, M. Johnston, T. Bohlsen, G. Paulo, I. D. Astronomía, Geof'isica e Ciencias Atmosf'ericas, S. Paulo., Brazil, D. Physics, Astro-particle Physics, Astrophysics, C. Center, U. Pittsburgh, Pittsburgh, Pa, Usa, Soar TelescopeNSF's NOIRLab, L. Serena, Chile., D. Physique, Centre de recherche en astrophysique du Qu'ebec, U. Montr'eal, Montr'eal, Qu'ebec, Canada, ExoplanetsStellar Astrophysics Laboratory, NASAGoddard Space Flight Center, Greenbelt, Md, Astronomy, Embry-Riddle Aeronautical University, Prescott, Az, M. F. Astronomy, Bonn, H Germany, D. O. Mathematics, U. California, Santa Cruz, Ca, San Diego State University, San Jos'e, Cresst, X-ray Astrophysics Laboratory, The Catholic University of America, Washington, Dc, D. Astrof́isica, Facultad de Ciencias Espaciales, Universidad Nacional Aut'onoma de Honduras, Bulevar Suyapa, Tegucigalpa, M.D.C, Honduras, Centroamerica, M. Science, A. Mathematics, Malmo University, Malmo, Sweden., C. I. O. Technology., Ipac, Pasadena, S. O. PhysicsAstronomy, U. Birmingham, Birmingham, Uk, University of Maryland Baltimore County, Baltimore., Instituto Nacional de Pesquisas EspaciaisMCTIC, S. J. Campos, Sp, Space Telescope Science Institute, School of Physical Sciences, U. Adelaide, South Australia., Saser team, South Yarra, Vic, Australia. +101 moresemanticscholar +1 more sourceHot subdwarf binaries from the MUCHFUSS project Analysis of 12 new systems and a study of the short-period binary population [PDF]
, 2015 The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions like massive white dwarfs (M > 1.0 M⊙), neutron stars, or stellar-mass black holes.T. Kupfer, S. Geier, U. Heber, R. Ostensen, B. Barlow, P. Maxted, C. Heuser, V. Schaffenroth, B. D. D. O. AstrophysicsIMAPP, R. Nijmegen, The Netherlands., E. Observatory, H Germany, D. Remeis-ObservatoryECAP, F. Erlangen-Nuremberg, I. O. Astronomy, K. Leuven, Belgium, D. Physics, High Point University, Usa, A. Group, Keele University, UK., Institute for Astro-, P. Physics, U. Innsbruck, Austria, U. Warwick +28 moresemanticscholar +1 more sourceThe 3rd AGILE Terrestrial Gamma‐ray Flashes Catalog. Part II: Optimized Selection Criteria and Characteristics of the New Sample
Journal of Geophysical Research: Atmospheres, Volume 125, Issue 11, 16 June 2020., 2020 Abstract
We present in this work the third catalog of terrestrial gamma‐ray flashes (TGFs) by the AGILE mission and the new search algorithm that was developed to produce it. We firstly introduce the new selection criteria, designed from the characteristics of WWLLN‐identified TGFs, and then applied on all data from March 2015 to September 2018 ...C. Maiorana, M. Marisaldi, A. Lindanger, N. Østgaard, A. Ursi, D. Sarria, M. Galli, C. Labanti, M. Tavani, C. Pittori, F. Verrecchia +10 morewiley +1 more sourceSupergravity Model of Inflation and Explaining IceCube HESE Data via PeV Dark Matter Decay
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 We construct a unified model of inflation and PeV dark matter with an appropriate choice of no‐scale Kähler potential, superpotential, and gauge kinetic function in terms of MSSM fields and hidden sector Polonyi field. The model is consistent with the CMB observations and can explain the PeV neutrino flux observed at IceCube HESE.Girish Kumar Chakravarty, Najimuddin Khan, Subhendra Mohanty, Ricardo G. Felipe +3 morewiley +1 more sourceX-ray detection of warm ionized matter in the Galactic halo [PDF]
, 2015 We report on a systematic investigation of the cold and mildly ionized gaseous baryonic metal components of our Galaxy, through the analysis of high resolution Chandra and XMM-Newton spectra of two samples of Galactic and extragalactic sources.F. Nicastro, F. Senatore, A. Gupta, M. Guainazzi, S. Mathur, Y. Krongold, M. Elvis, L. P. O. A. D. R. -. Inaf, M. Catone, Rm, Italy., H. C. F. Astrophysics, Cambridge, Ma, Usa, U. Crete, Heraklion, Greece., Universita' di Roma Tor Vergata, Roma, O. University, Columbus, Oh, Columbus State Community College, E. S. O. Esa, Madrid, Spain., Center for Particle Cosmology, Astro-particle Physics, I. D. A. N. A. D. Mexico, M'exico City, Mexico., I. D. A. E. P. S. -. Inaf +32 moresemanticscholar +1 more sourceDiffuse low-ionization gas in the galactic halo casts doubts on z ≃ 0.03 WHIM detections [PDF]
, 2016 In this Letter we demonstrate that the two claims of $z\simeq 0.03$ OVII K$\alpha$ absorption lines from Warm Hot Intergalactic Medium (WHIM) along the lines of sight to the blazars H~2356-309 (Buote et al., 2009; Fang et al., 2010) and Mkn~501 (Ren ...F. Nicastro, F. Senatore, A. Gupta, S. Mathur, Y. Krongold, M. Elvis, L. P. O. A. D. R. -. Inaf, Roma, Italy., H. C. F. Astrophysics, Cambridge, Ma, Usa, U. Crete, Heraklion, Greece., O. University, Columbus, Oh, Columbus State Community College, Center for Particle Cosmology, Astro-particle Physics, T. O. S. University, I. D. Astronomía, Universidad Autonoma de Mexico, M'exico City, Mexico., I. D. A. E. P. S. -. Inaf +27 moresemanticscholar +1 more sourceLeMMINGs IV: The X-ray properties of a statistically-complete sample of the nuclei in active and inactive galaxies from the Palomar sample [PDF]
, 2021 All 280 of the statistically-complete Palomar sample of nearby (20◦ have been observed at 1.5GHz as part of the LeMMINGs e-MERLIN legacy survey. Here, we present Chandra X-ray observations of the nuclei of 213 of these galaxies, including a statistically-D. Williams, M. Pahari, R. D. Baldi, I. McHardy, S. Mathur, R. Beswick, A. Beri, P. Boorman, S. Aalto, A. Alberdi, M. Argo, B. T. Dullo, D. Fenech, D. Green, J. Knapen, I. Mart'i-Vidal, J. Moldón, C. Mundell, T. Muxlow, F. Panessa, M. P'erez-Torres, P. Saikia, F. Shankar, I. Stevens, P. C. H. C. F. Astrophysics, The University of Manchester, UK., U. Oxford, U. Southampton, Southampton, Indian Institute of Technology, Hyderabad, India, I. D. Radioastronomia, Bologna, Italy., T. O. S. University, Usa, C. F. Astronomy, Astro-particle Physics, Eureka Scientific, Oakland, DST-INSPIRE Faculty, Indian Institute of Science Education, Research, A. Institute, Academy of Sciences, Czech Republic, C. U. Technology, Sweden., Inst. de Astrof'isica de Andaluc'ia, Spain., Jeremiah Horrocks Institute, U. C. Lancashire, D. Astrof'isica, U. Madrid, A. Group, C. Laboratory, Instituto de Astrof'isica de Canarias, D. Astrof'isica, U. L. Laguna, Observatori Astron'omic, U. Valencia, D. D. I. Astrof'isica, U. Bath, I. D. A. E. P. Spaziali, Roma, Center for Astro, Particle, P. Physics, N. Y. U. A. Dhabi, Uae, U. Birmingham, A. S. M. F. Astronomy, U. Amsterdam, The Netherlands. +75 moresemanticscholar +1 more sourceX-ray bursting neutron star atmosphere models using an exact relativistic kinetic equation for Compton scattering [PDF]
, 2012 Theoretical spectra of X-ray bursting neutron star (NS) model atmospheres are widely used to determine the basic NS parameters such as their masses and radii.V. Suleimanov, J. Poutanen, K. I. F. Astronomy, Astrophysics, K. C. F. Astro, P. Physics, E. University, Tubingen, H Germany, Kazan Federal University, Russia., A. Division, D. Physics, U. Oulu, Finland. +14 moresemanticscholar +1 more source
