Browsing by Author "Centre for Astrophysics Research"

Now showing items 321-340 of 3209

    • Can the Local Bubble explain the radio background? 

      Krause, Martin G. H.; Hardcastle, Martin J. (2021-04-01)
      The ARCADE 2 balloon bolometer along with a number of other instruments have detected what appears to be a radio synchrotron background at frequencies below about 3 GHz. Neither extragalactic radio sources nor diffuse ...

    • Can variability account for apparent age spreads in OB association colour-magnitude diagrams 

      Burningham, B.; Naylor, T.; Littlefair, S.P.; Jeffries, R.D. (2005)

    • CanariCam-Polarimetry: A Dual-Beam 10 m Polarimeter for the GTC 

      Packham, C.; Hough, J.; Telesco, C.M. (Astronomical Society of the Pacific, 2005)
      The advent of large (¸8m) telescopes, along with the new breed of mid-IR instrumentation, has opened a new window to di®raction-limited polarimetry. CanariCam, nearing completion at the University of Florida for the 10m ...

    • CanariCam: a multimode mid-infrared camera for the Gran Telescopio CANARIAS 

      Telesco, C.M.; Ciardi, D.; French, J.; Ftaclas, C.; Hanna, K.T.; Hough, J.; Julian, J.; Kidger, M.; Packham, C.; Pina, R.K.; Varosi, F.; Sellar, R.G. (Int Soc for Optical Engineering, 2003)
      The University of Florida is developing a mid-infrared camera for the 10.4-meter Gran Telescopio CANARIAS. CanariCam has four science modes and two engineering modes, which use the same 320 x 240-pixel, arsenic-doped ...

    • Candidate planetary nebulae in the IPHAS photometric catalogue 

      Viironen, K.; Greimel, R.; Corradi, R.L.M.; Mampaso, A.; Rodriguez, M.; Sabin, L.; Delgado-Inglada, G.; Drew, J.E.; Giammanco, C.; Gonzalez-Solares, E.; Irwin, M.J.; Miszalski, B.; Parker, Q.A.; Rodriguez-Flores, E.R.; Zijlstra, A.A. (2009)
      Context. We have carried out a semi-automated search for planetary nebulae (PNe) in the INT photometric H-alpha survey (IPHAS) catalogue. We present the PN search and the list of selected candidates. We cross correlate the ...

    • A candidate super-Earth planet orbiting near the snow line of Barnard's star 

      Ribas, I.; Tuomi, M.; Reiners, A.; Butler, R. P.; Morales, J. C.; Perger, M.; Dreizler, S.; Rodríguez-López, C.; Hernández, J. I. González; Rosich, A.; Feng, F.; Trifonov, T.; Vogt, S. S.; Caballero, J. A.; Hatzes, A.; Herrero, E.; Jeffers, S. V.; Lafarga, M.; Murgas, F.; Rodríguez, E.; Strachan, J. B. P.; Tal-Or, L.; Teske, J.; Toledo-Padrón, B.; Zechmeister, M.; Quirrenbach, A.; Amado, P. J.; Azzaro, M.; Béjar, V. J. S.; Barnes, J. R.; Berdiñas, Z. M.; Coleman, G.; Cortés-Contreras, M.; Crane, J.; Engle, S. G.; Guinan, E. F.; Haswell, C. A.; Henning, Th; Holden, B.; Jones, H. R. A.; Kaminski, A.; Kiraga, M.; Kürster, M.; López-González, M. J.; Montes, D.; Morin, J.; Ofir, A.; Pallé, E.; Rebolo, R.; Reffert, S.; Schweitzer, A.; Seifert, W.; Shectman, S. A.; Staab, D.; Street, R. A.; Mascareño, A. Suárez; Tsapras, Y.; Anglada-Escudé, G. (2018-11-15)
      Barnard’s star is a red dwarf, and has the largest proper motion (apparent motion across the sky) of all known stars. At a distance of 1.8 parsecs, it is the closest single star to the Sun; only the three stars in the α ...

    • The Capture and Escape of Stars 

      Collett, J.; Dutta, S.N.; Evans, N.W. (1997)
      The shape of galaxies depends on their orbital populations. These populations change through capture into and escape from resonance. Capture problems fall into distinct cases depending upon the shape of the potential well. ...

    • Capture cross section measurements of (186,187,188)Os at n_TOF : the resolved resonance region 

      Fujii, K.; Mosconi, M.; Milazzo, P. M.; Domingo-Pardo, C.; Kaeppeler, F.; Mengoni, A.; Abbondanno, U.; Aerts, G.; Alvarez, H.; Alvarez-Velarde, F.; Andriamonje, S.; Andrzejewski, J.; Assimakopoulos, P.; Audouin, L.; Badurek, G.; Baumann, P.; Becvar, F.; Berthoumieux, E.; Calvino, F.; Calviani, M.; Cano-Ott, D.; Capote, R.; Carrapico, C.; Cennini, P.; Chepel, V.; Chiaveri, E.; Colonna, N.; Cortes, G.; Couture, A.; Cox, J.; Dahlfors, M.; David, S.; Dillmann, I.; Dridi, W.; Duran, I.; Eleftheriadis, C.; Embid-Segura, M.; Ferrant, L.; Ferrari, A.; Ferreira-Marques, R.; Furman, W.; Goncalves, I.; Gonzalez-Romero, E.; Gramegna, F.; Guerrero, C.; Gunsing, F.; Haas, B.; Haight, R.; Heil, M.; Rauscher, T.; n TOF Collaboration (EDP Sciences, 2008)
      The neutron capture cross sections of (186,187,188)Os have been measured at the CERN neutron time-of-flight facility, n_TOF, in the neutron energy range from 1 eV up to 1 MeV. In this contribution, we report the results ...

    • Capture cross section of 236U: The n_TOF results 

      Barbagallo, M.; Colonna, N.; Vermeulen, M. J.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Bécares, V.; Bečvàř, F.; Belloni, F.; Berthoumieux, E.; Berthoumieux, E.; Billowes, J.; Boccone, V.; Bosnar, D.; Brugger, M.; Calviani, M.; Calviño; Cano-Ott, D.; Carrapiço, C.; Cerutti, F.; Chiaveri, E.; Chiaveri, E.; Chin, M.; Cortés, G.; Cortés-Giraldo, M. A.; Diakaki, M.; Domingo-Pardo, C.; Duran, I.; Dressler, R.; Eleftheriadis, C.; Ferrari, A.; Fraval, K.; Ganesan, S.; García, A. R.; Giubrone, G.; Gómez-Hornillos, M. B.; Gonçalves, I. F.; González-Romero, E.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Hernández-Prieto, A.; Jenkins, D. G.; Jericha, E.; Kadi, Y.; Käppeler, F.; Karadimos, D.; Kivel, N.; Koehler, P.; Kokkoris, M.; Krtička, M.; Kroll, J.; Lampoudis, C.; Langer, C.; Leal-Cidoncha, E.; Lederer, C.; Leeb, H.; Leong, L. S.; Losito, R.; Mallick, A.; Manousos, A.; Marganiec, J.; Martínez, T.; Massimi, C.; Mastinu, P. F.; Mastromarco, M.; Mendoza, E.; Mengoni, A.; Milazzo, P. M.; Mingrone, F.; Mirea, M.; Mondalaers, W.; Paradela, C.; Pavlik, A.; Perkowski, J.; Plompen, A.; Praena, J.; Quesada, J. M.; Rauscher, T.; Reifarth, R.; Riego, A.; Robles, M. S.; Rubbia, C.; Sabaté-Gilarte, M.; Sarmento, R.; Saxena, A.; Schillebeeckx, P.; Schmidt, S.; Schumann, D.; Tagliente, G.; Tain, J. L.; Tarrío, D.; Tassan-Got, L.; Tsinganis, A.; Valenta, S.; Vannini, G.; Variale, V.; Vaz, P. (2014-05-31)
      .Neutron induced capture cross section on 236U has been measured with high accuracy and high resolution at n_TOF, in order to improve data libraries needed for the development of advancednuclear reactors. Preliminary results ...

    • Capture of a particles by isospin-symmetric nuclei 

      Rauscher, T.; Thielemann, Friedrich-Karl; Gorres, J.; Wiescher, M. (2000-08-14)
      The reaction rates for ct capture processes on self-conjugate nuclei in the mass range A = 20-40 have been investigated. The rates were calculated using the statistical model code NON-SMOKER taking into account isospin ...

    • Carbon abundances and 12C/13C from globular cluster giants -- 

      Pavlenko, Y.; Jones, H.R.A.; Longmore, A.J. (2003-10)

    • Carbon enhanced metal-poor stars I : Chemical compositions of 26 stars 

      Aoki, W.; Beers, T.C.; Christlieb, N.; Norris, J.E.; Ryan, Sean G.; Tsangarides, S. (2007)

    • Carbon monoxide bands in M dwarfs 

      Pavlenko, Y.; Jones, H.R.A. (2002-12)

    • Carbon monoxide in clouds at low metallicity in the dwarf irregular galaxy WLM 

      Elmegreen, B.G.; Rubio, M.; Hunter, D. A.; Verdugo, C.; Brinks, E.; Schruba, A. (2013-03-27)
      Carbon monoxide (CO) is the primary tracer for interstellar clouds where stars form, but it has never been detected in galaxies in which the oxygen abundance relative to hydrogen is less than 20 per cent of that of the ...

    • Carbon monoxide in low-mass dwarf stars 

      Jones, H.R.A.; Pavlenko, Y.; Viti, S.; Barber, R.J.; Yakovina, L.A.; Pinfield, D.J.; Tennyson, J. (2005-03)

    • Carbon stock changes of forest land in Finland under different levels of wood use and climate change 

      Sievänen, Risto; Salminen, Olli; Lehtonen, Aleksi; Ojanen, Paavo; Liski, Jari; Ruosteenoja, Kimmo; Tuomi, Mikko (2014-03-01)
      •Context: Prediction of the effect of harvests and climate change (CC) on the changes in carbon stock of forests is necessary both for CC mitigation and adaptation purposes. •Aims: We assessed the impact of roundwood and ...

    • Carbon-Enhanced Metal-Poor Stars. III : Main-Sequence Turn-Off Stars from the SDSS/SEGUE Sample 

      Aoki, W.; Beers, T.C.; Sivarani, T.; Marsteller, B.; Lee, Y.S.; Honda, S.; Norris, J.E.; Ryan, Sean G.; Carollo, D. (2008-05-10)
      The chemical compositions of seven CEMP turnoff stars are determined from high-resolution spectroscopy. Five are selected from the SDSS SEGUE sample of metal-poor stars. Another star chosen from the SDSS SEGUE sample has ...

    • Carbon-enhanced metal-poor stars. Osmium and iridium abundances in the neutron-capture-enhanced subgiants CS31062-050 and LP625-44 

      Aoki, W.; Bisterzo, S.; Gallino, R.; Beers, T.C.; Norris, J.E.; Ryan, Sean G.; Tsangarides, S. (2006)

    • Carbon-rich, Extremely Metal-Poor Population II stars 

      Ryan, Sean G. (Astronomical Society of the Pacific, 2003)
      A significant fraction of very metal-poor stars have unexpectedly high carbon abundances. I recap on their discovery, describe the results of high-resolution spectroscopic studies of their composition, and consider possible ...

    • Carbonaceous dust grains seen in the first billion years of cosmic time 

      Witstok, Joris; Shivaei, Irene; Smit, Renske; Maiolino, Roberto; Carniani, Stefano; Curtis-Lake, Emma; Ferruit, Pierre; Arribas, Santiago; Bunker, Andrew J.; Cameron, Alex J.; Charlot, Stephane; Chevallard, Jacopo; Curti, Mirko; Graaff, Anna de; D'Eugenio, Francesco; Giardino, Giovanna; Looser, Tobias J.; Rawle, Tim; Pino, Bruno Rodríguez del; Willott, Chris; Alberts, Stacey; Baker, William M.; Boyett, Kristan; Egami, Eiichi; Eisenstein, Daniel J.; Endsley, Ryan; Hainline, Kevin N.; Ji, Zhiyuan; Johnson, Benjamin D.; Kumari, Nimisha; Lyu, Jianwei; Nelson, Erica; Perna, Michele; Rieke, Marcia; Robertson, Brant E.; Sandles, Lester; Saxena, Aayush; Scholtz, Jan; Sun, Fengwu; Tacchella, Sandro; Willmer, Christopher N. A. (2023-07-19)
      Large dust reservoirs (up to approximately 10 8 M ⊙) have been detected 1–3 in galaxies out to redshift z ≃ 8, when the age of the Universe was only about 600 Myr. Generating substantial amounts of dust within such a short ...