Browsing by Subject "Intergalactic medium"

Now showing items 1-11 of 11

    • A VLT/MUSE galaxy survey towards QSO Q1410: looking for a WHIM traced by BLAs in inter-cluster filaments 
      Pessa, Ismael; Tejos, Nicolás; Barrientos, Luis; Werk, Jessica; Bielby, Richard; Padilla, Nelson; Morris, Simón; Prochaska, J.; López Morales, Sebastián; Hummels, Cameron (Oxford University Press, 2018)
      Cosmological simulations predict that a significant fraction of the low-z baryon budget resides in large-scale filaments in the form of a diffuse plasma at temperatures T similar to 10(5)-10(7) K. However, direct observation ...
    • A coronagraphic absorbing cloud reveals the narrow-line region and extended Lyman alpha emission of QSO J0823+0529 
      Fathivavsari, H.; Petitjean, P.; Noterdaeme, P.; Paris, I.; Finley, H.; López Morales, Sebastián; Srianand, R.; Sánchez, P. S. (Oxford Univ Press, 2015)
      We report long-slit spectroscopic observations of the quasar SDSS J082303.22+052907.6 (z(C IV) similar to 3.1875), whose broad-line region (BLR) is partly eclipsed by a strong damped Lyman alpha (DLA; logN(H I) = 21.7) ...
    • A coronagraphic absorbing cloud reveals the narrow-line region and extended Lyman α emission of QSO J0823+0529 
      Fathivavsari, H.; Petitjean, P.; Noterdaeme, P.; Paris, I.; Finley, H.; López Morales, Sebastián; Srianand, R.; Sánchez, Paula (Royal Astronomical Society, 2015)
      We report long-slit spectroscopic observations of the quasar SDSS J082303.22+052907.6 (zC IV ∼ 3.1875), whose broad-line region (BLR) is partly eclipsed by a strong damped Lyman α (DLA; logN(H I) = 21.7) cloud. This ...
    • Into the Ly alpha jungle: exploring the circumgalactic medium of galaxies at z similar to 4-5 with MUSE 
      Bielby, Richard M.; Fumagalli, Michele; Fossati, Matteo; Rafelski, Marc; Oppenheimer, Benjamin; Cantalupo, Sebastiano; Christensen, Lise; Fynbo, J. P. U.; López Morales, Sebastián; Morris, Simon L.; D'Odorico, Valentina; Peroux, Celine (Oxford University Press, 2020)
      We present a study of the galaxy environment of nine strong HI + CIV absorption line systems (16.2 < log(N(HI)) < 21.2) spanning a wide range in metallicity at z similar to 4-5, using MUSE integral field and X-Shooter ...
    • LATIS: The Ly alpha Tomography IMACS Survey 
      Newman, Andrew B.; Rudie, Gwen C.; Blanc Mendiberri, Guillermo; Kelson, Daniel; Rhoades, Sunny; Hare, Tyson; Pérez, Victoria; Benson, Andrew J.; Dressler, Alan; González Corvalán, Valentino; Kollmeier, Juna A.; Konidaris, Nicholas P.; Mulchaey, John S.; Rauch, Michael; Le Fevre, Olivier; Lemaux, Brian C.; Cucciati, Olga; Lilly, Simon J. (IOP, 2020)
      We introduce LATIS, the Ly alpha Tomography IMACS Survey, a spectroscopic survey at Magellan designed to map the z = 2.2-2.8 intergalactic medium (IGM) in three dimensions by observing the Ly alpha forest in the spectra ...
    • Slicing the cool circumgalactic medium along the major axis of a star-forming galaxy at z = 0.7 
      López Morales, Sebastián; Tejos, N.; Barrientos, L. F.; Ledoux, C.; Sharon, K.; Katsianis, Antonios; Florian, M. K.; Rivera Thorsen, E.; Bayliss, M. B.; Dahle, H.; Fernández Figueroa, Antonia; Gladders, M. D.; Gronke, M.; Hamel, M.; Pessa, I.; Rigby, J. R. (Oxford Unv Press, 2020)
      We present spatially resolved Echelle spectroscopy of an intervening Mg II-Fe II-Mg I absorption-line system detected at z(abs) = 0.73379 towards the giant gravitational arc wPSZ1 G311.65-18.48. The absorbing gas is ...
    • The cosmic ultraviolet baryon survey (CUBS) - III. Physical properties and elemental abundances of Lyman-limit ... 
      Zahedy, Fakhri S.; Chen, Hsiao-Wen; Cooper, Thomas M.; Boettcher, Erin; Johnson, Sean D.; Rudie, Gwen C.; Chen, Mandy C.; Cantalupo, Sebastiano; Cooksey, Kathy L.; Faucher Giguere, Claude-Andre; Greene, Jenny E.; López Morales, Sebastián Víctor Claudio; Mulchaey, John S.; Penton, Steven; Petitjean, Patrick; Putman, Mary E.; Rafelski, Marc; Rauch, Michael; Schaye, Joop; Simcoe, Robert A.; Walth, Gregory L. (Oxford, 2021)
      We present a systematic investigation of physical conditions and elemental abundances in four optically thick Lyman-limit systems (LLSs) at z = 0.36-0.6 discovered within the cosmic ultraviolet baryon survey (CUBS). Because ...
    • The cosmic ultraviolet baryon survey (CUBS) IV: The complex multiphase circumgalactic medium as revealed ... 
      Cooper, Thomas J.; Rudie, Gwen C.; Chen, Hsiao-Wen; Johnson, Sean D.; Zahedy, Fakhri S.; Chen, Mandy C.; Boettcher, Erin; Walth, Gregory L.; Cantalupo, Sebastiano; Cooksey, Kathy L.; Faucher Giguere, Claude Andre; Greene, Jenny E.; López Morales, Sebastián Víctor Claudio; Mulchaey, John S.; Penton, Steven; Petitjean, Patrick; Putman, Mary E.; Rafelski, Marc; Rauch, Michael; Schaye, Joop; Simcoe, Robert A. (Oxford, 2021)
      We present a detailed study of two partial Lyman limit systems (pLLSs) of neutral hydrogen column density N-HI approximate to ( 1 - 3) x 10(16) cm(-2 )discovered at z = 0.5 in the Cosmic Ultraviolet Baryon Survey (CUBS). ...
    • The evolution of the Si IV content in the Universe from the epoch of reionization to cosmic noon 
      D'Odorico, V.; Finlator, K.; Cristiani, S.; Cupani, G.; Perrotta, S.; Calura, F.; Centurion, M.; Becker, G.; Berg, T. A. M.; López, S.; Ellison, S.; Pomante, E. (Oxford, 2022)
      We investigate the abundance and distribution of metals in the high-redshift intergalactic medium and circum-galactic medium through the analysis of a sample of almost 600 Si iv absorption lines detected in high and ...
    • The Lyman α forest power spectrum from the XQ-100 Legacy Survey 
      Irsic, Vid; Viel, Matteo; Berg, Trystyn A. M.; D'Odorico, Valentina; Haehnelt, Martin G.; Cristiani, Stefano; Cupani, Guido; Kim, Tae-Sun; López Morales, Sebastián; Ellison, Sara; Becker, George D.; Christensen, Lise; Denney, Kelly D.; Worseck, Gabor; Bolton, James S. (Oxford University Press, 2017-05)
      We present the Lyman α flux power spectrum measurements of the XQ-100 sample of quasar spectra obtained in the context of the European Southern Observatory Large Programme ‘Quasars and their absorption lines: a legacy ...
    • The UVES large program for testing fundamental physics – II. Constraints on a change in μ towards quasar ... 
      Rahmani, Hadi.; Wend, Martin; Srianand, Raghunathan; Noterdaeme, Pasquier; Petitjean, Patrick; Molaro, Paolo; Whitmore, Jonathan; Murphy, Michael; Centurion, M.; Fathivavsari, Hassan; D'Odorico, Sandro; Evans, Tyler; Levshakov, Sergei Anatolievich; López Morales, Sebastián; Martins, C. J. A. P.; Reimers, D.; Vladilo, Giovanni (Royal Astronomical of Society, 2013-08-22)
      We present an accurate analysis of the H2 absorption lines from the zabs ˜ 2.4018 damped Lyα system towards HE 0027-1836 observed with the Very Large Telescope Ultraviolet and Visual Echelle Spectrograph (VLT/UVES) as a ...