Browsing University of Hertfordshire by Author "Cioni, M-R.L."

Now showing items 1-20 of 75

    • An absolute calibration of DENIS (deep near infrared southern sky survey) 

      Fouque, P.; Chevallier, L.; Cohen, M.; Galliano, E.; Loup, C.; Alard, C.; de Batz, B.; Bertin, E.; Borsenberger, J.; Cioni, M-R.L.; Copet, E.; Dennefeld, M.; Derriere, S.; Deul, E.; Duc, P.A.; Egret, D.; Epchtein, N.; Forveille, T.; Garzon, F.; Habing, H.J.; Hron, J.; Kimeswenger, S.; Lacombe, F.; Le Bertre, T.; Mamon, G.A.; Omont, O.; Paturel, G.; Pau, S.; Persi, P.; Robin, A.C.; Rouan, D.; Schultheis, M.; Simon, G.; Tiphene, D.; Vauglin, I.; Wagner, S. (2000)
      An absolute calibration of the DENIS photometric system is presented. It includes the determination of the overall transmission profiles in the 3 bands, namely i, J and Ks, combining contributions from atmosphere, telescope ...

    • The AGB population of NGC 6822 : Distribution and the C/M ratio from JHK photometry. 

      Sibbons, L. F.; Ryan, Sean G.; Cioni, M-R.L.; Irwin, M.; Napiwotzki, R. (2012-04)
      Context. NGC 6822 is an irregular dwarf galaxy and part of the Local Group. Its close proximity and apparent isolation provide a unique opportunity to study galactic evolution without any obvious strong external influences. ...

    • AGB stars as tracers of metallicity and mean age across M 33 

      Cioni, M-R.L.; Irwin, M.J.; Ferguson, A.M.N.; McConnachie, A.; Conn, B.C.; Huxor, A.P.; Ibata, R.A.; Lewis, G.F.; Tanvir, N. (2008)
      Wide-field JHKs near-infrared observations covering an area of 1.8◦ × 1.8◦ centred on M33 were obtained using WFCAM at UKIRT. These data show a large population of intermediate-age asymptotic giant branch (AGB) stars. Aims. ...

    • AGB stars in the Magellanic Clouds I: The C/M ratio 

      Cioni, M-R.L.; Habing, H.J. (2003)
      Regions of different metallicity have been identified in the Magellanic Clouds by using the ratio between Asymptotic Giant Branch stars of spectral type C and M. In the Large Magellanic Cloud the ratio appears to decrease ...

    • AGB stars in the Magellanic Clouds II. The rate of star formation across the LMC 

      Cioni, M-R.L.; Girardi, L.; Marigo, P.; Habing, H.J. (2006)
      This article compares the distribution of Ks magnitudes of Large Magellanic Cloud (LMC) asymptotic giant branch (AGB) stars obtained from the DENIS and 2MASS data with theoretical distributions. These have been constructed ...

    • AGB stars in the Magellanic Clouds III. The rate of star formation across the Small Magellanic Cloud 

      Cioni, M-R.L.; Girardi, L.; Marigo, P.; Habing, H.J. (2006)
      This article compares the Ks magnitude distribution of Small Magellanic Cloud asymptotic giant branch stars obtained from the DENIS and 2MASS data with theoretical distributions. Methods. Theoretical Ks magnitude distributions ...

    • Chemical abundances in LMC stellar populations.I: the inner disk sample 

      Pompeia, L.; Hill, V.; Spite, M.; Cole, A.; Primas, F.; Romaniello, M.; Pasquini, L.; Cioni, M-R.L.; Hane, T.S. (2008)

    • The DENIS Point Source Catalogue towards the Magellanic Clouds 

      Cioni, M-R.L.; Loup, C.; Habing, H.J.; Fouque, P.; Bertin, E.; Deul, E.; Egret, D.; Alard, C.; de Batz, B.; Borsenberger, J.; Dennefeld, M.; Epchtein, N.; Forveille, T.; Garzon, F.; Hron, J.; Kimeswenger, S.; Lacombe, F.; Le Bertre, T.; Mamon, G.A.; Omont, A.; Paturel, G.; Persi, P.; Robin, A.C.; Rouan, D.; Simon, G.; Tiphene, D.; Vauglin, I.; Wagner, S. (2000)

    • The detection of an older population in the Magellanic Bridge 

      Bagheri, Gemma; Cioni, M-R.L.; Napiwotzki, Ralf (2013-03)
      The Magellanic system comprises the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC), and the less frequently observed Magellanic Bridge and Magellanic Stream. The Bridge is traced by neutral gas and has an ...

    • The Draco dwarf galaxy in the near-infrared 

      Cioni, M-R.L.; Habing, H.J. (2005-10)

    • Eclipsing binary stars in the Large Magellanic Cloud : results from the EROS-2, OGLE and VMC surveys 

      Tatiana, Muraveva; Clementini, G.; Maceroni, Carla; Evans, Chris J.; Moretti, M.I.; Cioni, M-R.L.; Marquette, J-B.; Ripepi, V.; de Grijs, R.; Groenewegen, M.A.T.; Piatti, Andres; van Loon, J. Th (2014-09-01)
      We present a catalogue of 1768 eclipsing binary stars (EBs) detected in the Large Magellanic Cloud (LMC) by the second generation of the EROS survey (hereinafter EROS-2); 493 of them are new discoveries located in outer ...

    • Ellipsoidal variability and the difference between sequence D and E red giants 

      Nicholls, C.P.; Wood, P.R.; Cioni, M-R.L. (2010)
      We have studied a sample of Large Magellanic Cloud red giant binaries that lie on sequence E in the period–luminosity plane. We show that their combined light and velocity curves unambiguously demonstrate that they are ...

    • Embedded Clusters in the Large Magellanic Cloud using the VISTA Magellanic Clouds Survey 

      Romita, Krista; Lada, Elisabeth; Cioni, M-R.L. (2016-04-11)
      We present initial results of the first large scale survey of embedded star clusters in molecular clouds in the Large Magellanic Cloud (LMC) using near-infrared (NIR) imaging from the VISTA Magellanic Clouds Survey (Cioni ...

    • An empirical formula for the mass-loss rates of dust-enshrouded red supergiants and oxygen-rich Asymptotic Giant Branch stars 

      van Loon, J.T.; Cioni, M-R.L.; Zijlstra, A.A.; Loup, C. (2005)

    • ESO-VLT and Spitzer spectroscopy of IRAS 05328−6827 : a massive young stellar object in the Large Magellanic Cloud 

      van Loon, J.T.; Oliveira, J.M.; Wood, P.R.; Zijlstra, A.A.; Sloan, G.C.; Matsuura, M.; Whitelock, P.A.; Groenewegen, M.A.T.; Blommaert, J.A.D.L.; Cioni, M-R.L.; Hony, S.; Loup, C.; Waters, L.B.F.M. (2005)

    • Evolution and Mass Loss of AGB Stars in the Small Magellanic Cloud 

      Blommaert, J.A.D.L.; Trams, N.R.; Okumura, K.; Groenewegen, M.A.T.; van Loon, J.T.; Waters, L.B.F.M.; Cioni, M-R.L.; Habing, H.J.; Zijlstra, A.A.; Loup, C. (1997)

    • Extremely red stellar objects revealed by IPHAS 

      Wright, Nick; Greimel, R.; Barlow, M.J.; Drew, J.E.; Cioni, M-R.L.; Zijlstra, A.A.; Corradi, R.L.M.; Gonzalez-Solares, E.; Groot, P.; Irwin, J.; Irwin, M.J.; Mampaso, A.; Morris, R.A.H.; Steeghs, D.; Unruh, Y.C.; Walton, N.A. (2008)
      We present photometric analysis and follow-up spectroscopy for a population of extremely red stellar objects extracted from the point-source catalogue of the INT Photometric H Survey (IPHAS) of the northern galactic plane. ...

    • The global gas and dust budget of the Large Magellanic Cloud: AGB stars and supernovae and the impact on the ISM evolution 

      Matsuura, M.; Barlow, M.J.; Zijlstra, A.A.; Whitelock, P.A.; Cioni, M-R.L.; Groenewegen, M.A.T.; Volk, K.; Kemper, F.; Kodama, T.; Lagadec, E.; Meixner, M.; Sloan, G.C.; Srinivasan, S. (2009)
      We report on an analysis of the gas and dust budget in the interstellar medium (ISM) of the Large Magellanic Cloud (LMC). Recent observations from the Spitzer Space Telescope enable us to study the mid-infrared dust excess ...

    • Hydra II: a faint and compact milky way dwarf galaxy found in the survey of the magellanic stellar history 

      Martin, Nicolas F.; Nidever, David L.; Besla, Gurtina; Olsen, Knut; Walker, Alistair R.; Vivas, A. Katherina; Gruendl, Robert A.; Kaleida, Catherine C.; Muñoz, Ricardo R.; Blum, Robert D.; Saha, Abhijit; Conn, Blair C.; Bell, Eric F.; Chu, You Hua; Cioni, M-R.L.; De Boer, Thomas J. L.; Gallart, Carme; Jin, Shoko; Kunder, Andrea; Majewski, Steven R.; Martinez-Delgado, David; Monachesi, Antonela; Monelli, Matteo; Monteagudo, Lara; Noël, Noelia E.D.; Olszewski, Edward W.; Stringfellow, Guy S.; Van Der Marel, Roeland P.; Zaritsky, Dennis (2015-05-01)
      We present the discovery of a new dwarf galaxy, Hydra II, found serendipitously within the data from the ongoing Survey of the Magellanic Stellar History conducted with the Dark Energy Camera on the Blanco 4 m Telescope. ...

    • Improved prospects for the detection of new Large Magellanic Cloud planetary nebulae 

      Miszalski, B.; Napiwotzki, R.; Cioni, M-R.L.; Nie, J. (2011)
      The LargeMagellanic Cloud (LMC) contains the nearest large extragalactic population of planetary nebulae (PNe). A shallow viewing angle and low interstellar reddening towards the LMC potentially means a larger, more complete ...