Browsing by Subject "Methods: observational"

Now showing items 1-20 of 20

    • A survey for dwarf galaxy remnants around 14 globular clusters in the outer halo 
      Sollima, A.; Martínez Delgado, David; Muñoz Vidal, Ricardo Rodrigo; Carballo-Bello, J. A.; Valls-Gabaud, D.; Grebel, E. K.; Santana, F.; Cote, P.; Djorgovski, S. G. (Oxford University Press, 2018-06)
      We report the results of a systematic photometric survey of the peripheral regions of a sample of 14 globular clusters in the outer halo of the Milky Way at distances d(GC) > 25 kpc from the Galactic Centre. The survey is ...
    • 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 ...
    • The ALMA Band 9 receiver Design, construction, characterization, and first light 
      Baryshev, A. M.; Hesper, R.; Mena Mena, Fausto Patricio; Klapwijk, T. M.; Kempen, T. A. van; Hogerheijde, M. R.; Jackson, B. D.; Adema, J.; Gerlofsma, G. J.; Bekema, M. E.; Barkhof, J.; Haan Stijkel, L. H. R. de; Bemt, M. van den; Koops, A.; Keizer, K.; Pieters, C.; Koops van het Jagt, J.; Schaeffer, H. H. A.; Zijlstra, T.; Kroug, M.; Lodewijk, C. F. J.; Wielinga, K.; Boland, W.; Graauw, M. W. M. de; Dishoeck, E. F. van; Jager, H.; Wild, W. (ESO, 2015)
      Aims. We describe the design, construction, and characterization of the Band 9 heterodyne receivers (600-720 GHz) for the Atacama Large Millimeter/submillimeter Array (ALMA). First-light Band 9 data, obtained during ALMA ...
    • Cepheid distances from the SpectroPhoto-Interferometry of Pulsating Stars (SPIPS) Application to the ... 
      Mérand, A.; Kervella, Pierre; Breitfelder, J.; Gallenne, A.; Coudé du Foresto, V.; Brummelaar, T. A. ten; McAlister, H. A.; Ridgway, S.; Sturmann, L.; Sturmann, J.; Turner, N. H. (EDP Sciences, 2015)
      Context. The parallax of pulsation, and its implementations such as the Baade-Wesselink method and the infrared surface brightness technique, is an elegant method to determine distances of pulsating stars in a quasi-geometrical ...
    • Characterization of dense Planck clumps observed with Herschel and SCUBA-2 
      Mannfors, E.; Juvela, M.; Bronfman Aguiló, Leonardo Jaime; Eden, D. J.; Kim, G.; Kim, K.-T.; Kirppu, H.; Liu, T.; Montillaud, J.; Parsons, H.; Sanhueza, P.; Shang, H.; Soam, A.; Tatematsu, K.; Traficante, A.; Vaisala, M. S.; Lee, C. W. (EDP Sciences, 2021)
      Context. Although the basic processes of star formation (SF) are known, more research is needed on SF across multiple scales and environments. The Planck all-sky survey provided a large catalog of Galactic cold clouds and ...
    • First resolved observations of a highly asymmetric debris disc around HD 160305 with VLT/SPHERE 
      Perrot, Clément; Thebault, Philippe; Lagrange, Anne Marie; Boccaletti, Anthony; Vigan, Arthur; Desidera, Silvano; Ausgereau, Jean Charles; Bonnefoy, Mickael; Choquet, Élodie; Kral, Quentin; Loh, Alan; Maire, Anne Lise; Ménard, Francois; Messina, Sergio; Olofsson, Johan (EDP Sciences, 2019)
      Context. Direct imaging of debris discs gives important information about their nature, their global morphology, and allows us to identify specific structures possibly in connection with the presence of gravitational ...
    • Gap, shadows, spirals, and streamers: SPHERE observations of binary-disk interactions in GG Tauri A 
      Keppler, M.; Penzlin, A.; Benisty, Myriam; van Boekel, R.; Henning, T.; Van Holstein, R. G.; Kley, W.; Garufi, A.; Ginski, C.; Brandner, W.; Bertrang, Gesa H. M.; Boccaletti, A.; de Boer, J.; Bonavita, M.; Brown Sevilla, S.; Chauvin, Gael Epely; Dominik, C.; Janson, M.; Langlois, M.; Lodato, G.; Maire, A. L.; Ménard, F.; Pantin, E.; Pinte, C.; Stolker, T.; Szulágyi, J.; Thebault, P.; Villenave, M.; Zurlo, A.; Rabou, P.; Feautrier, P.; Feautrier, P.; Feldt, M.; Madec, F.; Wildi, F. (EDP Science, 2020)
      Context. A large portion of stars is found to be part of binary or higher-order multiple systems. The ubiquity of planets found around single stars raises the question of whether and how planets in binary systems form. ...
    • Lack of high-mass pre-stellar cores in the starless MDCs of NGC 6334 
      Louvet, F.; Neupane, S.; Garay Brignardello, Guido; Russeil, D.; Zavagno, A.; Guzman, A.; Gomez, L.; Bronfman Aguiló, Leonardo; Nony, T. (EDP Sciences, 2019)
      Context. The formation of high-mass stars remains unknown in many aspects. There are two competing families of models to explain the formation of high-mass stars. On the one hand, quasi-static models predict the existence ...
    • Near-infrared spectroscopic observations of high redshift C I absorbers 
      Zou, Siwei; Petitjean, Patrick; Noterdaeme, Pasquier; Ledoux, Cédric; Krogager, J. K.; Fathivavsari, H.; Srianand, R.; López, S. (EDP Sciences, 2018)
      We study a sample of 17 $z>1.5$ C~{\sc i} absorbers observed with the ESO-VLT spectrograph X-SHOOTER. We derive metallicities, depletion onto dust, extinction by dust and analyse the absorption from Mg~{\sc ii}, Mg~{\sc ...
    • Recovering star formation histories: Integrated-light analyses vs. stellar colour-magnitude diagrams 
      Ruiz Lara, T.; Pérez, I.; Gallart, Carme; Alloin, D.; Monelli, M.; Koleva, M.; Pompei, E.; Beasley, M.; Sánchez Blázquez, P.; Florido, E.; Aparicio, Antonio; Fleurence, E.; Hardy Raskovan, Eduardo; Hidalgo, S.; Raimann, D. (EDP Sciences, 2015)
      Context. Accurate star formation histories (SFHs) of galaxies are fundamental for understanding the build-up of their stellar content. However, the most accurate SFHs - those obtained from colour-magnitude diagrams (CMDs) ...
    • Refined physical parameters for Chariklo's body and rings from stellar occultations observed between 2013 and 2020 
      Morgado, B. E.; Sicardy, B.; Braga Ribas, F.; Desmars, J.; Gomes Junior, A. R.; Berard, D.; Leiva Espinoza, Rodrigo Andrés; Ortiz, J. L.; Vieira Martins, R.; Benedetti Rossi, G.; Santos Sanz, P.; Camargo, J. I. B.; Duffard, R.; Rommel, F. L.; Assafin, M.; Boufleur, R. C.; Colas, F.; Kretlow, M.; Beisker, W.; Sfair, R.; Snodgrass, C.; Morales, N.; Fernández Valenzuela, E.; Amaral, L. S.; Amarante, A.; Artola, R. A.; Backes, M.; Bath, K. L.; Bouley, S.; Buie, M. W.; Cacella, P.; Colazo, C. A.; Colque, J. P.; Dauvergne, J. L.; Dominik, M.; Emilio, M.; Erickson, C.; Evans, R.; Fabrega Polleri, J.; Garcia Lambas, D.; Giacchini, B. L.; Hanna, W.; Herald, D.; Hesler, G.; Hinse, T. C.; Jacques, C.; Jehin, E.; Jorgensen, U. G.; Machado, D. I.; Maquet, L.; Maury, A.; Melia, R.; Meza, E.; Mondon, B.; Moura, T.; Newman, J.; Payet, T.; Pereira, C. L.; Pollock, J.; Poltronieri, R. C.; Quispe Huaynasi, F.; Reichart, D.; de Santana, T.; Schneiter, E. M.; Sieyra, M. V.; Skottfelt, J.; Soulier, J. F.; Starck, M.; Thierry, P.; Torres, P. J.; Trabuco, L. L.; Unda Sanzana, E.; Yamashita, T. A. R.; Winter, O. C.; Zapata, A.; Zuluaga, C. A. (EDP Sciences, 2021)
      Context. The Centaur (10199) Chariklo has the first ring system discovered around a small object. It was first observed using stellar occultation in 2013. Stellar occultations allow sizes and shapes to be determined with ...
    • RefPlanets: Search for reflected light from extrasolar planets with SPHERE/ZIMPOL 
      Hunziker, S.; Schmid, H. M.; Mouillet, D.; Milli, J.; Zurlo, Alice; Abe, L.; Avenhaus, H.; Baruffolo, A.; Bazzon, A.; Boccaletti, A.; Baudoz, P.; Beuzit, J. L.; Carbillet, M.; Chauvin, G.; Dohlen, K.; Chauvin, G.; Claudi, R.; Costille, A.; Daban, J.-B.; Desidera, S.; Dohlen, K.; Dominik, C.; Downing, M.; Engler, N.; Feldt, M.; Fusco, T.; Ginski, C.; Gisler, D.; Girard, J. H.; Gratton, R.; Henning, Th.; Hubin, N.; Kasper, M.; Keller, C. U.; Langlois, M.; Lagadec, E.; Martínez, P.; Maire, A.-L.; Menard, F.; Meyer, M. R.; Pavlov, A.; Pragt, J.; Puget, P.; Quanz, S. P.; Rickman, E.; Roelfsema, R.; Salasnich, B.; Sauvage, J.-F.; Siebenmorgen, R.; Sissa, E.; Snik, F.; Suárez, M.; Szulágyi, J.; Thalmann, Ch.; Turatto, M.; Udry, S.; Van Holstein, R. G.; Vigan, A.; Wildi, F. (EDP ​​Sciences, 2020)
      Aims. RefPlanets is a guaranteed time observation programme that uses the Zurich IMaging POLarimeter (ZIMPOL) of Spectro-Polarimetric High-contrast Exoplanet REsearch instrument at the Very Large Telescope to perform a ...
    • Resolved astrometric orbits of ten O-type binaries 
      Le Bouquin, J. -B.; Sana, H.; Gosset, E.; De Becker, M.; Duvert, G.; Absil, O.; Anthonioz, F.; Berger, J. -P.; Ertel, S.; Grellmann, R.; Guieu, S.; Kervella, Pierre; Rabus, M.; Willson, M. (EDP Sciences, 2017-05)
      Aims. Our long-term aim is to derive model-independent stellar masses and distances for long period massive binaries by combining apparent astrometric orbit with double-lined radial velocity amplitudes (SB2). Methods. ...
    • Scintillation-limited photometry with the 20-cm NGTS telescopes at Paranal observatory 
      O’Brien, Sean M.; Bayliss, Daniel; Osborn, James; Bryant, Edward M.; McCormac, James; Wheatley, Peter J.; Acton, Jack S.; Alves, Douglas R.; Anderson, David R.; Burleigh, Matthew R.; Casewell, Sarah L.; Gill, Samuel; Goad, Michael R.; Henderson, Beth A.; Jackman, James A. G.; Lendl, Monika; Tilbrook, Rosanna H.; Udry, Stéphane; Vines, Jose I.; West, Richard G. (Oxford University Press, 2022)
      Ground-based photometry of bright stars is expected to be limited by atmospheric scintillation, although in practice observations are often limited by other sources of systematic noise. We analyse 122 nights of bright star ...
    • SDSS-IV/MaNGA: spectrophotometric calibration technique 
      Yan, Renbin; Tremonti, Christy; Bershady, Matthew A.; Law, David R.; Schlegel, David J.; Bundy, Kevin; Drory, Niv; MacDonald, Nicholas; Bizyaev, Dmitry; Blanc Mendiberri, Guillermo; Blanton, Michael R.; Cherinka, Brian; Eigenbrot, Arthur; Gunn, James E.; Harding, Paul; Hogg, David W.; Sánchez Gallego, José R.; Sánchez, Sebastian F.; Wake, David A.; Weijmans, Anne Marie; Xiao, Ting; Zhang, Kai (IOP Publishing, 2016)
      Mapping Nearby Galaxies at Apache Point Observatory (MaNGA), one of three core programs in the Sloan Digital Sky Survey-IV, is an integral-field spectroscopic survey of roughly 10,000 nearby galaxies. It employs dithered ...
    • Shapley Supercluster Survey: construction of the photometric catalogues and i-band data release 
      Mercurio, A.; Merluzzi, P.; Busarello, G.; Grado, A.; Limatola, L.; Haines, Chris; Brescia, M.; Cavuoti, S.; Dopita, M.; Dall’Ora, M.; Capaccioli, M.; Napolitano, N.; Pimbblet, K. A. (Oxford University Press, 2015)
      The Shapley Supercluster Survey is a multi-wavelength survey covering an area of similar to 23 deg(2) (similar to 260 Mpc(2) at z = 0.048) around the supercluster core, including nine Abell and two poor clusters, having ...
    • Simultaneous TESS and NGTS transit observations of WASP-166 b 
      Bryant, Edward M.; Bayliss, Daniel; McCormac, James; Wheatley, Peter J.; Acton, Jack S.; Anderson, David R,; Armstrong, David J.; Bouchy, François; Belardi, Claudia; Burleigh, Matthew R.; Tilbrook, Rosie H.; Casewell, Sarah L.; Cooke, Benjamin F; Gill, Samuel; Goad, Michael R.; Jenkins, James Stewart; Lendl, Monika; Pollacco, Don; Queloz, Didier; Raynard, Liam; Smith, Alexis M. S.; Vines, José; West, Richard G.; Udry, Stephane (Oxford University Press, 2020)
      We observed a transit of WASP-166 b using nine Next Generation Transit Survey (NGTS) telescopes simultaneously with the Transiting Exoplanet Survey Satellite (TESS) observations of the same transit. We achieved a photometric ...
    • Supplement: " Localization and Broadband Follow-Up of the Gravitational-Wave Transient GW150914” (2016, ... 
      Abbot, B. P.; Galbany, Lluis; Razza, A. (IOP, 2016)
      This Supplement provides supporting material for Abbott et al. (2016a). We briefly summarize past electromagnetic (EM) follow-up efforts as well as the organization and policy of the current EM follow-up program. We compare ...
    • The Large Magellanic Cloud stellar content with SMASH: I. Assessing the stability of the Magellanic spiral arms 
      Ruiz Lara, T.; Gallart, C.; Monelli, M.; Nidever, D.; Dorta, A.; Choi, Y.; Olsen, K.; Besla, G.; Bernard, E. J.; Cassisi, S.; Massana, P.; Noël, N. E. D.; Pérez, I.; Rusakov, V.; Cioni, M.-R. L.; Majewski, S. R.; Marel, R. P. van der; Martínez Delgado, D.; Monachesi, A.; Monteagudo, L.; Muñoz, R. R.; Stringfellow, G. S.; Surot, F.; Vivas, A. K.; Walker, A. R.; Zaritsky, D. (EDP Science, 2020)
      The Large Magellanic Cloud (LMC) is the closest and most studied example of an irregular galaxy. Among its principal defining morphological features, its o -centred bar and single spiral arm stand out, defining a whole ...
    • Very Large Telescope observations of Gomez's Hamburger: Insights into a young protoplanet candidate 
      Berné, O.; Fuente, A.; Pantin, E.; Bujarrabal, V.; Baruteau, C.; Pilleri, P.; Habart, E.; Ménard, Francois; Cernicharo, J.; Tielens, A. G. G. M.; Joblin, C. (ESO, 2015)
      Planets are thought to form in the gas and dust disks around young stars. In particular, it has been proposed that giant planets can form through the gravitational instability of massive extended disks around intermediate-mass ...