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Browsing by Subject "Stjarneðlisfræði"

Browsing by Subject "Stjarneðlisfræði"

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  • Zafar, T.; Elm Heintz, Kasper; Fynbo, J. P. U.; Malesani, D.; Bolmer, J.; Ledoux, C.; Arabsalmani, M.; Kaper, L.; Campana, S.; Starling, R. L. C.; Selsing, J.; Kann, D. A.; Postigo, A. de Ugarte; Schweyer, T.; Christensen, L.; Møller, P.; Japelj, J.; Perley, D.; Tanvir, N. R.; D’Avanzo, P.; Hartmann, D. H.; Hjorth, J.; Covino, S.; Sbarufatti, B.; Jakobsson, P.; Izzo, L.; Salvaterra, R.; D’Elia, V.; Xu, D. (American Astronomical Society, 2018-06-18)
    The ultraviolet (UV) extinction feature at 2175 Å is ubiquitously observed in the Galaxy but is rarely detected at high redshifts. Here we report the spectroscopic detection of the 2175 Å bump on the sightline to the γ-ray burst (GRB) afterglow GRB ...
  • Caputo, Andrea; Zavala Franco, Jesus; Blas, Diego (Elsevier BV, 2018-03)
    As a binary pulsar moves through a wind of dark matter particles, the resulting dynamical friction modifies the binary’s orbit. We study this effect for the double disk dark matter (DDDM) scenario, where a fraction of the dark matter is dissipative ...
  • Boschini, M. J.; Torre, S. Della; Gervasi, M.; Grandi, D.; Jóhannesson, Guðlaugur; Vacca, G. La; Masi, N.; Moskalenko, I. V.; Pensotti, S.; Porter, T. A.; Quadrani, L.; Rancoita, P. G.; Rozza, D.; Tacconi, M. (American Astronomical Society, 2018-05-04)
    Local interstellar spectra (LIS) of primary cosmic ray (CR) nuclei, such as helium, oxygen, and mostly primary carbon are derived for the rigidity range from 10 MV to ~200 TV using the most recent experimental results combined with the state-of-the-art ...
  • Tanvir, N. R.; Levan, A. J.; González-Fernández, C.; Korobkin, O.; Mandel, I.; Rosswog, S.; Hjorth, J.; D’Avanzo, P.; Fruchter, A. S.; Fryer, C. L.; Kangas, T.; Milvang-Jensen, B.; Rosetti, S.; Steeghs, D.; Wollaeger, R. T.; Cano, Z.; Copperwheat, C. M.; Covino, S.; D’Elia, V.; de Ugarte Postigo, A.; Evans, P. A.; Even, W. P.; Fairhurst, S.; Jaimes, R. Figuera; Fontes, C. J.; Fujii, Y. I.; Fynbo, J. P. U.; Gompertz, B. P.; Greiner, J.; Hodosan, G.; Irwin, M. J.; Jakobsson, Pall; Jørgensen, U. G.; Kann, D. A.; Lyman, J. D.; Malesani, D.; McMahon, R. G.; Melandri, A.; O’Brien, P. T.; Osborne, J. P.; Palazzi, E.; Perley, D. A.; Pian, E.; Piranomonte, S.; Rabus, M.; Rol, E.; Rowlinson, A.; Schulze, S.; Sutton, P.; Thöne, C. C.; Ulaczyk, K.; Watson, D.; Wiersema, K.; Wijers, R. A. M. J. (American Astronomical Society, 2017-10-16)
    We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo (GW170817) ...
  • Levan, A. J.; Lyman, J. D.; Tanvir, N. R.; Hjorth, J.; Mandel, I.; Stanway, E. R.; Steeghs, D.; Fruchter, A. S.; Troja, E.; Schrøder, S. L.; Wiersema, K.; Bruun, S. H.; Cano, Z.; Cenko, S. B.; Postigo, A. de Ugarte; Evans, P.; Fairhurst, S.; Fox, O. D.; Fynbo, J. P. U.; Gompertz, B.; Greiner, J.; Im, M.; Izzo, L.; Jakobsson, Pall; Kangas, T.; Khandrika, H. G.; Lien, A. Y.; Malesani, D.; O’Brien, P.; Osborne, J. P.; Palazzi, E.; Pian, E.; Perley, D. A.; Rosswog, S.; Ryan, R. E.; Schulze, S.; Sutton, P.; Thöne, C. C.; Watson, D. J.; Wijers, R. A. M. J. (American Astronomical Society, 2017-10-16)
    We present Hubble Space Telescope (HST) and Chandra imaging, combined with Very Large Telescope MUSE integral field spectroscopy of the counterpart and host galaxy of the first binary neutron star merger detected via gravitational-wave emission by LIGO ...
  • Lovell, Mark; Zavala Franco, Jesus; Vogelsberger, Mark; Shen, Xuejian; Cyr-Racine, Francis-Yan; Pfrommer, Christoph; Sigurdson, Kris; Boylan-Kolchin, Michael; Pillepich, Annalisa (Oxford University Press (OUP), 2018-03-28)
    We contrast predictions for the high-redshift galaxy population and reionization history between cold dark matter (CDM) and an alternative self-interacting dark matter model based on the recently developed ETHOS framework that alleviates the small-scale ...
  • Ajello, M.; Allafort, A.; Axelsson, M.; Baldini, L.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bellazzini, R.; Berenji, B.; Bissaldi, E.; Blandford, R. D.; Bloom, E. D.; Bonino, R.; Bottacini, E.; Brandt, T. J.; Bregeon, J.; Bruel, P.; Buehler, R.; Burnett, T. H.; Buson, S.; Cameron, R. A.; Caputo, R.; Caraveo, P. A.; Casandjian, J. M.; Cavazzuti, E.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Chiaro, G.; Ciprini, S.; Cohen-Tanugi, J.; Cominsky, L. R.; Costantin, D.; Cuoco, A.; Cutini, S.; D’Ammando, F.; Palma, F. de; Lalla, N. Di; Mauro, M. Di; Venere, L. Di; Dubois, R.; Dumora, D.; Favuzzi, C.; Ferrara, E. C.; Franckowiak, A.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Giglietto, N.; Gill, R.; Giordano, F.; Giroletti, M.; Glanzman, T.; Granot, J.; Green, D.; Grenier, I. A.; Grondin, M.-H.; Guillemot, L.; Guiriec, S.; Harding, A. K.; Hays, E.; Horan, D.; Imazato, F.; Jóhannesson, Guðlaugur; Kamae, T.; Kensei, S.; Kocevski, D.; Kuss, M.; Mura, G. La; Larsson, S.; Latronico, L.; Li, J.; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Magill, J. D.; Maldera, S.; Manfreda, A.; Mazziotta, M. N.; Michelson, P. F.; Mizuno, T.; Moiseev, A. A.; Monzani, M. E.; Moretti, E.; Morselli, A.; Moskalenko, I. V.; Negro, M.; Nuss, E.; Ojha, R.; Omodei, N.; Orlando, E.; Ormes, J. F.; Palatiello, M.; Paliya, V. S.; Paneque, D.; Persic, M.; Pesce-Rollins, M.; Petrosian, V.; Piron, F.; Porter, T. A.; Principe, G.; Racusin, J. L.; Rainò, S.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Ritz, S.; Rochester, L. S.; Ryde, F.; Parkinson, P. M. Saz; Sgrò, C.; Siskind, E. J.; Spada, F.; Spandre, G.; Spinelli, P.; Suson, D. J.; Tajima, H.; Takahashi, M.; Tak, D.; Thayer, J. G.; Thayer, J. B.; Torres, D. F.; Torresi, E.; Tosti, G.; Troja, E.; Valverde, J.; Venters, T. M.; Vianello, G.; Wood, K.; Yang, C.; Zaharijas, G. (American Astronomical Society, 2018-07-06)
    We present the Fermi Large Area Telescope (LAT) observations of the binary neutron star merger event GW170817 and the associated short gamma-ray burst (SGRB) GRB 170817A detected by the Fermi Gamma-ray Burst Monitor. The LAT was entering the South ...
  • Lovell, Mark; Pillepich, Annalisa; Genel, Shy; Nelson, Dylan; Springel, Volker; Pakmor, Rüdiger; Marinacci, Federico; Weinberger, Rainer; Torrey, Paul; Vogelsberger, Mark; Alabi, Adebusola; Hernquist, Lars (Oxford University Press (OUP), 2018-08-25)
    We use the IllustrisTNG (TNG) cosmological simulations to provide theoretical expectations for the dark matter mass fractions (DMFs) and circular velocity profiles of galaxies. TNG predicts flat circular velocity curves for z = 0 Milky Way (MW)-like ...
  • Elm Heintz, Kasper (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2019-07)
    In the early Universe, most of the cold neutral gas that will later form into individual stars and galaxies is practically invisible to us. These neutral gas reservoirs can, however, be illuminated by bright cosmic lightsources such as gamma-ray bursts ...
  • Boschini, M. J.; Torre, S. Della; Gervasi, M.; Grandi, D.; Jóhannesson, Guðlaugur; La Vacca, G.; Masi, N.; Moskalenko, I. V.; Pensotti, S.; Porter, T. A.; Quadrani, L.; Rancoita, P. G.; Rozza, D.; Tacconi, M. (American Astronomical Society, 2018-02-15)
    The local interstellar spectrum (LIS) of cosmic-ray (CR) electrons for the energy range 1 MeV to 1 TeV is derived using the most recent experimental results combined with the state-of-the-art models for CR propagation in the Galaxy and in the heliosphere. ...
  • Cano, Zach; Wang, Shan-Qin; Dai, Zi-Gao; Wu, Xue-Feng (Hindawi Limited, 2017)
    We present a detailed report of the connection between long-duration gamma-ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained ...
  • Brinckmann, Thejs; Zavala Franco, Jesus; Rapetti, David; Hansen, Steen H.; Vogelsberger, Mark (Oxford University Press (OUP), 2017-10-30)
    We perform dark-matter-only simulations of 28 relaxed massive cluster-sized haloes for cold dark matter (CDM) and self-interacting dark matter (SIDM) models, to study structural differences between the models at large radii, where the impact of baryonic ...