Showing 21 - 40 results of 143 for search '"Very Large Telescope"', query time: 0.10s Refine Results
  1. 21

    Spectral determination of the colour and vertical structure of dark spots in Neptune’s atmosphere by Irwin, PGJ, Dobinson, J, James, A, Wong, MH, Fletcher, LN, Roman, MT, Teanby, NA, Toledo, D, Orton, GS, Pérez-Hoyos, S, Sánchez-Lavega, A, Sromovsky, L, Simon, AA, Morales-Juberías, R, Pater, ID, Cook, SL

    Published 2023
    “…We analyse spectroscopic observations of a dark spot on Neptune identified by the Hubble Space Telescope as NDS-2018; the spectral observations were made in 2019 by the Multi Unit Spectroscopic Explorer (MUSE) of the Very Large Telescope (Chile). The MUSE medium-resolution 475–933 nm reflection spectra allow us to show that dark spots are caused by darkening at short wavelengths (<700 nm) of a deep ~5 bar aerosol layer, which we suggest is the H2S condensation layer. …”
    Journal article
  2. 22

    Changing characteristics of Jupiter's little red spot by Cheng, A, Simon-Miller, A, Weaver, H, Baines, K, Orton, G, Yanamandra-Fisher, P, Mousis, O, Pantin, E, Vanzi, L, Fletcher, L, Spencer, JR, Stern, SA, Clarke, J, Mutchler, M, Noll, K

    Published 2008
    “…The Little Red Spot (LRS) in Jupiter's atmosphere was investigated in unprecedented detail by the New Horizons spacecraft together with the Hubble Space Telescope (HST) and the Very Large Telescope (VLT). The LRS and the larger Great Red Spot (GRS) of Jupiter are the largest known atmospheric storms in the solar system. …”
    Journal article
  3. 23

    The abundances of heavy elements in BL138 – red giant of local group fornax dwarf spheroidal galaxy by V.F. Gopka, A.V. Yushchenko, V.A. Yushchenko, A.V. Shavrina, S.M. Andrievsky, Y. Jeong, E.P. Shereta

    Published 2018-08-01
    “… Using the spectrum obtained with FLAMES/GIRAFFE multi-object spectrograph installed at ESO Very Large Telescope we investigated the absorption lines of heavy elements in the spectrum of BL138. …”
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    Article
  4. 24

    Fast infrared variability from a relativistic jet in GX 339-4 by Casella, P, Maccarone, T, O'Brien, K, Fender, R, Russell, D, van der Klis, M, Pe'er, A, Maitra, D, Altamirano, D, Belloni, T, Kanbach, G, Klein-Wolt, M, Mason, E, Soleri, P, Stefanescu, A, Wiersema, K, Wijnands, R

    Published 2010
    “…The source was observed with subsecond time resolution simultaneously with Very Large Telescope/Infrared Spectrometer And Array Camera and Rossi X-ray Timing Explorer/Proportional Counter Array in 2008 August, during its persistent low-flux highly variable hard state. …”
    Journal article
  5. 25

    SINFONI: A near infrared AO assisted integral field spectrometer for the VLT by Thatte, N, Tecza, M, Eisenhauer, F, Mengel, S, Krabbe, A, Pak, S, Genzel, R, Bonaccini, D, Emsellem, E, Rigaut, F, Delabre, B, Monnet, G

    Published 1998
    “…SINFONI, the SINgle Faint Object Near-infrared Investigation, is an instrument for the Very Large Telescope (VLT), designed to provide spectroscopy at the telescope diffraction limit in the near-infrared. …”
    Conference item
  6. 26

    Latitudinal variations in methane abundance, aerosol opacity and aerosol scattering efficiency in Neptune's atmosphere determined from VLT/MUSE by Irwin, P, Dobinson, J, James, A, Michael, W, Leigh, F, Michael, R, Nicholas, T, Glenn, O, Santiago, P-H, Agustin, S-L, Amy, S, Raul, M-J, Imke, DP

    Published 2023
    “…Spectral observations of Neptune made in 2019 with the MUSE instrument at the Very Large Telescope in Chile have been analysed to determine the spatial variation of aerosol scattering properties and methane abundance in Neptune’s atmosphere. …”
    Journal article
  7. 27

    Identification of a Helium Donor Star in NGC 247 ULX-1 by Changxing Zhou, Hua Feng, Fuyan Bian

    Published 2023-01-01
    “…With Very Large Telescope Multi Unit Spectroscopic Explorer (MUSE) observations, we detected highly variable helium emission lines from the optical counterpart of the supersoft ultraluminous X-ray source (ULX) NGC 247 ULX-1. …”
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    Article
  8. 28

    Analysis of gaseous ammonia (NH3) absorption in the visible spectrum of Jupiter - Update by Irwin, PGJ, Bowles, N, Braude, AS, Garland, R, Calcutt, S, Coles, PA, Yurchenko, SN, Tennyson, J

    Published 2018
    “…An analysis of currently available ammonia (NH3) visible-to-near-infrared gas absorption data was recently undertaken by Irwin et al. (2018) to help interpret Very Large Telescope (VLT) MUSE observations of Jupiter from 0.48–0.93 µm, made in support of the NASA/Juno mission. …”
    Journal article
  9. 29

    Uranus in northern midspring: persistent atmospheric temperatures and circulations inferred from thermal imaging by Roman, MT, Fletcher, LN, Orton, GS, Rowe-Gurney, N, Irwin, PGJ

    Published 2020
    “…We present results from mid-infrared imaging of Uranus at wavelengths of 13.0 and 18.7 μm, sensing emission from the stratosphere and upper troposphere, acquired using the VISIR instrument at the Very Large Telescope, 2018 September 4–October 20. Using a combination of inverse and forward modeling, we analyze these northern midspring (Ls ~ 46°) images and compare them to archival data to assess seasonal changes since the 1986 southern solstice and subsequent equinox. …”
    Journal article
  10. 30

    Applications of a Gaussian process framework for modelling of high-resolution exoplanet spectra by Meech, A, Aigrain, S, Brogi, M, Birkby, JL

    Published 2022
    “…We use two archival CRyogenic Infra-Red Echelle Spectrograph (CRIRES)/Very Large Telescope (VLT) data sets as test cases, observations of the hot Jupiters HD 189733 b and 51 Pegasi b, recovering injected signals with average line contrast ratios of ∼4.37 × 10-3 and ∼1.39 × 10-3, and planet radial velocities ΔKp = 1.45 ± 1.53 km s-1 and ΔKp = 0.12 ± 0.12 km s-1 from the injection velocities, respectively. …”
    Journal article
  11. 31

    MUSE: A second-generation integral-field spectrograph for the VLT by McDermid, R, Bacon, R, Bauer, S, Boehn, P, Boudon, D, Brau-Nogue, S, Caillier, P, Capoani, L, Carollo, C, Champavert, N, Contini, T, Daguise, E, Delabre, B, Devriendt, J, Dreizler, S, Dubois, J, Dupieux, M, Dupin, J, Emsellem, E, Ferruit, P, Franx, M, Callou, G, Gerssen, J, Guiderdoni, B, Hahn, T

    Published 2008
    “…The Multi Unit Spectroscopic Explorer (MUSE) is a second-generation instrument in development for the Very Large Telescope (VLT) of the European Southern Observatory (ESO), due to begin operation in 2011/12. …”
    Conference item
  12. 32

    FORS spectroscopy of galaxies in the Hubble Deep Field-South by Rigopoulou, D, Vacca, W, Berta, S, Franceschini, A, Aussel, H

    Published 2005
    “…The observations were obtained using the Focal Reducer/low dispersion Spectrograph (FORS) on the ESO Very Large Telescope. Thirty-two primary spectroscopic targets in the HST-WFPC2 HDFS were supplemented with galaxies detected in the Infrared Space Observatory's survey of the HDFS and the ESO Imaging Deep Survey to comprise a sample of 100 galaxies for spectroscopic observations. …”
    Journal article
  13. 33

    Constraints on Uranus's haze structure, formation and transport by Toledo, D, Irwin, P, Rannou, P, Teanby, N, Simon, A, Wong, M, Orton, G

    Published 2019
    “…These simulations were coupled to a radiative-transfer code to fit observations performed by the SINFONI Integral Field Unit Spectrometer on the Very Large Telescope (VLT) and by the Wide Field Camera 3 (WFC3) of the Hubble Space Telescope (HST) in 2014. …”
    Journal article
  14. 34

    Spectroscopy of z similar to 7 candidate galaxies: using Lyman alpha to constrain the neutral fraction of hydrogen in the high-redshift universe by Caruana, J, Bunker, A, Wilkins, S, Stanway, E, Lorenzoni, S, Jarvis, M, Ebert, H

    Published 2014
    “…Following our previous spectroscopic observations of z &gt; 7 galaxies with Gemini/Gemini Near Infra-Red Spectrograph (GNIRS) and Very Large Telescope (VLT)/XSHOOTER, which targeted a total of eight objects,we present here our results froma deeper and largerVLT/FOcal Reducer and Spectrograph (FORS2) spectroscopic sample of Wide Field Camera 3 selected z&gt;7 candidate galaxies.With our FORS2 setup we cover the 737-1070 nm wavelength range, enabling a search for Lyman α in the redshift range spanning 5.06-7.80. …”
    Journal article
  15. 35

    Detection of the first infra-red quasi-periodic oscillation in a black hole X-ray binary by Kalamkar, M, Casella, P, Uttley, P, O'Brien, K, Russell, D, Maccarone, T, van der Klis, M, Vincentelli, F

    Published 2016
    “…We present the analysis of fast variability of Very Large Telescope/ISAAC (Infrared Spectrometer And Array Camera) (infra-red), XMM–Newton/OM (optical) and EPIC-pn (X-ray), and RXTE/PCA (X-ray) observations of the black hole X-ray binary GX 339−4 in a rising hard state of its outburst in 2010. …”
    Journal article
  16. 36

    Identification of Bubble Nebulae around NGC 55 ULX-1 with MUSE Observations by Changxing Zhou, Hua Feng, Fuyan Bian

    Published 2023-01-01
    “…Using the Multi Unit Spectroscopic Explorer (MUSE) instrument on the Very Large Telescope, we identified three bubble nebulae (denoted as A, B, and C) around an ultraluminous X-ray source (ULX) in NGC 55. …”
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    Article
  17. 37

    Studying Nearby Galactic Planetary Nebulae with MUSE: On the Physical Properties of IC 418 by Ana Monreal-Ibero , Jeremy R. Walsh

    Published 2022-01-01
    “…The advent of the multi-unit spectroscopic explorer (MUSE), a large integral field unit mounted on the ESO Very Large Telescope, allow us to obtain this information over the whole face of galactic PNe in a reasonable amount of time. …”
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    Article
  18. 38

    THE FIRST DISTANCE CONSTRAINT ON THE RENEGADE HIGH-VELOCITY CLOUD COMPLEX WD by Peek, J. E. G., Bordoloi, Rongmon, Sana, Hugues, Roman-Duval, Julia, Tumlinson, Jason, Zheng, Yong

    Published 2017
    “…We present medium-resolution, near-ultraviolet Very Large Telescope/FLAMES observations of the star USNO-A0600-15865535. …”
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    Article
  19. 39

    The MUSE Ultra Deep Field (MUDF). I. Discovery of a group of Lyα nebulae associated with a bright z ≈ 3.23 quasar pair by Lusso, E, Fumagalli, M, Fossati, M, Mackenzie, R, Bielby, RM, Battaia, F Arrigoni, Cantalupo, S, Cooke, R, Cristiani, S, Dayal, P, D’Odorico, V, Haardt, F, Lofthouse, E, Morris, S, Peroux, C, Prichard, L, Rafelski, M, Simcoe, R, Swinbank, M, Theuns, T

    Published 2021
    “…We present first results from Multi Unit Spectroscopic Explorer (MUSE) observations at the Very Large Telescope in the MUSE Ultra Deep Field (MUDF), a ≈1.2 × 1.4 arcmin region for which we are collecting ≈200 hours of integral field spectroscopy. …”
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    Article
  20. 40

    CD −24°17504 REVISITED: A NEW COMPREHENSIVE ELEMENT ABUNDANCE ANALYSIS by Frebel, Anna L., Jacobson, Heather

    Published 2015
    “…We present a new detailed abundance analysis for 21 elements based on combined archival Keck-HIRES and Very Large Telescope-UVES spectra of the star that is higher in both spectral resolution and S/N than previous data. …”
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    Article