Browsing by Author "Irwin, M."

Now showing items 1-16 of 16

    • The AGB population in IC 1613 using JHK photometry 

      Sibbons, L. F.; Ryan, Sean G.; Irwin, M.; Napiwotzki, R. (2015-01-01)
      Context. A member of the Local Group, IC 1613 is a gas rich irregular dwarf galaxy that appears to have formed stars continuously over the last 10 Gyr and is relatively independent of external influences from other galaxies. ...

    • 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. ...

    • Composition and properties of atmospheric particles in the eastern Atlantic and impacts on gas phase uptake rates 

      Allan, J. D.; Topping, D. O.; Good, N.; Irwin, M.; Flynn, M.; Williams, P. I.; Coe, H.; Baker, A. R.; Martino, M.; Niedermeier, N.; Wiedensohler, A.; Lehmann, S.; Mueller, K.; Herrmann, H.; McFiggans, G. (2009)
      Marine aerosol composition continues to represent a large source of uncertainty in the study of climate and atmospheric chemistry. In addition to their physical size and chemical composition, hygroscopicity plays a significant ...

    • Consistency between parameterisations of aerosol hygroscopicity and CCN activity during the RHaMBLe discovery cruise 

      Good, N.; Topping, D. O.; Allan, J. D.; Flynn, M.; Fuentes, E.; Irwin, M.; Williams, P. I.; Coe, H.; McFiggans, G. (2010)
      Results from a measurement study performed in the Tropical Atlantic on board the RHaMBLe Discovery Cruise D319 are presented. Measurements of aerosol composition, hygroscopicity and CCN activity were used to test the ability ...

    • A deep WISE search for very late type objects and the discovery of two halo/thick-disc T dwarfs : WISE 0013+0634 and WISE 0833+0052 

      Pinfield, D.J.; Gomes, J.; Day-Jones, A. C.; Leggett, S.K.; Gromadzki, M.; Burningham, B.; Ruiz, M. T.; Kurtev, R.; Cattermole, T.; Cardoso, C.; Lodieu, N.; Faherty, J.; Littlefair, S.; Smart, R.; Irwin, M.; Clarke, J. R. A.; Smith, Leigh; Lucas, P.W.; Galvez-Ortiz, M. C.; Jenkins, J. S.; Jones, H.R.A.; Rebolo, R.; Bejar, V. J. S.; Gauza, B. (2014-01-11)
      A method is defined for identifying late-T and Y dwarfs in WISE down to low values of signal-to-noise. This requires a WISE detection only in the W2-band and uses the statistical properties of the WISE multiframe measurements ...

    • Detection of new planetary nebulae by IPHAS, the Hα survey of the North Galactic plane 

      Corradi, R.L.M.; Greimel, R.; Leisy, P.; Mampaso, A.; Viironen, K.; Kovacevic, A.; Morris, R.; Phillipps, S.; Zijlstra, A.; Irwin, J.; Drew, J.E.; Hopewell, E.C.; Wright, N.; Barlow, M.; Irwin, M.; Walton, N.; Frew, D.J.; Parker, Q. A.; Groot, P.; Sokoloski, J.L.; Zurita, A. (American Institute of Physics (AIP), 2005-11-28)
      IPHAS is an ongoing Hα imaging survey of the North Galactic plane. When completed, it is expected to discover several hundred new Galactic planetary nebulae, in addition to a huge number of Hα emitters. We present here the ...

    • The Gaia -ESO Survey : Empirical determination of the precision of stellar radial velocities and projected rotation velocities 

      Jackson, R. J.; Jeffries, R.D.; Lewis, J.; Koposov, S. E.; Sacco, G. G.; Randich, S.; Gilmore, G.; Asplund, M.; Binney, J.; Bonifacio, P.; Drew, J.E.; Feltzing, S.; Ferguson, A.M.N.; Micela, G.; Neguerela, I.; Prusti, T.; Rix, H-W.; Vallenari, A.; Alfaro, E. J.; Allende Prieto, C.; Babusiaux, C.; Bensby, T.; Blomme, R.; Bragaglia, A.; Flaccomio, E.; Francois, P.; Hambly, N.; Irwin, M.; Korn, A.J.; Lanzafame, A. C.; Pancino, E.; Recio-Blanco, A.; Smiljanic, R.; Van Eck, S.; Walton, N.; Bayo, A.; Bergemann, M.; Carraro, G.; Costado, M. T.; Damiani, F.; Edvardsson, B.; Franciosini, E.; Frasca, A.; Heiter, U.; Hill, V.; Hourihane, A.; Jofré, P.; Lardo, C.; De Laverny, P.; Lind, K.; Magrini, L.; Marconi, G.; Martayan, C.; Masseron, T.; Monaco, L.; Morbidelli, L.; Prisinzano, L.; Sbordone, L.; Sousa, S.G.; Worley, C. C.; Zaggia, S. (2015-08)
      Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey at the European Southern Observatory Very Large Telescope. Aims. A key aim is to provide precise radial velocities (RVs) and projected equatorial ...

    • Gaia-ESO Survey : Analysis of pre-main sequence stellar spectra 

      Lanzafame, A. C.; Frasca, A.; Damiani, F.; Franciosini, E.; Cottaar, M.; Sousa, S. G.; Tabernero, H. M.; Klutsch, A.; Spina, L.; Biazzo, K.; Prisinzano, L.; Sacco, G. G.; Randich, S.; Brugaletta, E.; Delgado Mena, E.; Adibekyan, V.; Montes, D.; Bonito, R.; Gameiro, J. F.; Alcalá, J. M.; González Hernández, J. I.; Jeffries, R.; Messina, S.; Meyer, M.; Gilmore, G.; Asplund, M.; Binney, J.; Bonifacio, P.; Drew, J.E.; Feltzing, S.; Ferguson, A. M N; Micela, G.; Negueruela, I.; Prusti, T.; Rix, H. W.; Vallenari, A.; Alfaro, E. J.; Allende Prieto, C.; Babusiaux, C.; Bensby, T.; Blomme, R.; Bragaglia, A.; Flaccomio, E.; Francois, P.; Hambly, N.; Irwin, M.; Koposov, S. E.; Korn, A.J.; Smiljanic, R.; Van Eck, S.; Walton, N.; Bayo, A.; Bergemann, M.; Carraro, G.; Costado, M. T.; Edvardsson, B.; Heiter, U.; Hill, V.; Hourihane, A.; Jackson, R. J.; Jofré, P.; Lardo, C.; Lewis, J.; Lind, K.; Magrini, L.; Marconi, G.; Martayan, C.; Masseron, T.; Monaco, L.; Morbidelli, L.; Sbordone, L.; Worley, C. C.; Zaggia, S. (2015-04-01)
      Context. The Gaia-ESO Public Spectroscopic Survey is obtaining high-quality spectroscopy of some 100 000 Milky Way stars using the FLAMES spectrograph at the VLT, down to V = 19 mag, systematically covering all the main ...

    • The Gaia-ESO survey : Processing FLAMES-UVES spectra 

      Sacco, G. G.; Morbidelli, L.; Franciosini, E.; Maiorca, E.; Randich, S.; Modigliani, A.; Gilmore, G.; Asplund, M.; Binney, J.; Bonifacio, P.; Drew, J.E.; Feltzing, S.; Ferguson, A.; Jeffries, R.; Micela, G.; Negueruela, I.; Prusti, T.; Rix, H. W.; Vallenari, A.; Alfaro, E.; Prieto, C. Allende; Babusiaux, C.; Bensby, T.; Blomme, R.; Bragaglia, A.; Flaccomio, E.; Francois, P.; Hambly, N.; Irwin, M.; Koposov, S.; Korn, A.; Lanzafame, A.; Pancino, E.; Recio-Blanco, A.; Smiljanic, R.; Van Eck, S.; Walton, N.; Bergemann, M.; Costado, M. T.; De Laverny, P.; Heiter, U.; Hill, V.; Hourihane, A.; Jackson, R.; Jofre, P.; Lewis, J.; Lind, K.; Lardo, C.; Magrini, L.; Masseron, T.; Prisinzano, L.; Worley, C. (2014-05)
      The Gaia-ESO Survey is a large public spectroscopic survey that aims to derive radial velocities and fundamental parameters of about 105 Milky Way stars in the field and in clusters. Observations are carried out with the ...

    • The Gaia-ESO Survey : The analysis of high-resolution UVES spectra of FGK-type stars 

      Smiljanic, R.; Korn, A.J.; Bergemann, M.; Frasca, A.; Magrini, L.; Masseron, T.; Pancino, E.; Ruchti, G.; San Roman, I.; Sbordone, L.; Sousa, S.G.; Tabernero, H.; Tautvaišienė, G.; Valentini, M.; Weber, M.; Worley, C. C.; Adibekyan, V. Zh; Allende Prieto, C.; Barisevičius, G.; Biazzo, K.; Blanco-Cuaresma, S.; Bonifacio, P.; Bragaglia, A.; Caffau, E.; Cantat-Gaudin, T.; Chorniy, Y.; De Laverny, P.; Delgado-Mena, E.; Donati, P.; Duffau, S.; Franciosini, E.; Friel, E.; Geisler, D.; González Hernández, J. I.; Gruyters, P.; Guiglion, G.; Hansen, C. J.; Heiter, U.; Hill, V.; Jacobson, H. R.; Jofre, P.; Jönsson, H.; Lanzafame, A. C.; Lardo, C.; Ludwig, H. G.; Maiorca, E.; Mikolaitis, S.; Montes, D.; Morel, T.; Mucciarelli, A.; Munõz, C.; Nordlander, T.; Pasquini, L.; Puzeras, E.; Recio-Blanco, A.; Ryde, N.; Sacco, G.; Santos, N.C.; Serenelli, A. M.; Sordo, R.; Soubiran, C.; Spina, L.; Steffen, M.; Vallenari, A.; Van Eck, S.; Villanova, S.; Gilmore, G.; Randich, S.; Asplund, M.; Binney, J.; Drew, J.E.; Feltzing, S.; Ferguson, A.; Jeffries, R.; Micela, G.; Negueruela, I.; Prusti, T.; Rix, H. W.; Alfaro, E.; Babusiaux, C.; Bensby, T.; Blomme, R.; Flaccomio, E.; François, P.; Irwin, M.; Koposov, S.; Walton, N.; Bayo, A.; Carraro, G.; Costado, M. T.; Damiani, F.; Edvardsson, B.; Hourihane, A.; Jackson, R.; Lewis, J.; Lind, K.; Marconi, G.; Martayan, C.; Monaco, L.; Morbidelli, L.; Prisinzano, L.; Zaggia, S. (2014-11)
      Context. The ongoing Gaia-ESO Public Spectroscopic Survey is using FLAMES at the VLT to obtain high-quality medium-resolution Giraffe spectra for about 105 stars and high-resolution UVES spectra for about 5000 stars. With ...

    • Reactive Halogens in the Marine Boundary Layer (RHaMBLe) : the tropical North Atlantic experiments 

      Lee, J. D.; McFiggans, G.; Allan, J. D.; Baker, A. R.; Ball, S. M.; Benton, A. K.; Carpenter, L. J.; Commane, R.; Finley, B. D.; Evans, M.; Fuentes, E.; Furneaux, K.; Goddard, A.; Good, N.; Hamilton, J. F.; Heard, D. E.; Herrmann, H.; Hollingsworth, A.; Hopkins, J. R.; Ingham, T.; Irwin, M.; Jones, C. E.; Jones, R. L.; Keene, W. C.; Lawler, M. J.; Lehmann, S.; Lewis, A. C.; Long, M. S.; Mahajan, A.; Methven, J.; Moller, S. J.; Mueller, K.; Mueller, T.; Niedermeier, N.; O'Doherty, S.; Oetjen, H.; Plane, J. M. C.; Pszenny, A. A. P.; Read, K. A.; Saiz-Lopez, A.; Saltzman, E. S.; Sander, R.; von Glasow, R.; Whalley, L.; Wiedensohler, A.; Young, D. (2010)
      The NERC UK SOLAS-funded Reactive Halogens in the Marine Boundary Layer (RHaMBLe) programme comprised three field experiments. This manuscript presents an overview of the measurements made within the two simultaneous remote ...

    • Reconciliation of measurements of hygroscopic growth and critical supersaturation of aerosol particles in central Germany 

      Irwin, M.; Good, N.; Crosier, J.; Choularton, T.W.; McFiggans, G. (2010)
      Aerosol physical, chemical and hygroscopic properties were measured in a range of airmasses during COPS (Convective and Orographically-induced Precipitation Study) ground-based in June and July of 2007 at the Hornisgrinde ...

    • The UKIDSS Galactic Plane Survey 

      Lucas, P.W.; Hoare, M.G.; Longmore, A.J.; Schroeder, A.C.; Davis, C.J.; Adamson, A.; Bandyopadhyay, R.M.; de Grijs, R.; Smith, M.; Gosling, A.; Mitchison, S.; Gaspar, A.; Coe, M.; Tamura, M.; Parker, Q.; Irwin, M.; Hambly, N.; Bryant, J.; Collins, R. S.; Cross, N.; Evans, D.W.; Gonzalez-Solares, E.; Hodgkin, S.; Lewis, J.; Read, M.; Riello, M.; Sutorius, E. T. W.; Lawrence, A.; Drew, J.E.; Dye, S.; Thompson, M.A. (2008)
      The UKIDSS Galactic Plane Survey (GPS) is one of the five near-infrared Public Legacy Surveys that are being undertaken by the UKIDSS consortium, using the Wide Field Camera on the United Kingdom Infrared Telescope

    • The UKIRT Hemisphere Survey: definition and J-band Data Release 

      Dye, S.; Lawrence, A.; Fan, X.; Kerr, T.; Varricatt, W.; Furnell, K. E.; Edge, A.; Irwin, M.; Hambly, N.; Lucas, P.; Almaini, O.; Chambers, K.; Hewett, P.; Liu, M.; McGreer, I.; Best, W.; Sutorius, E.; Froebrich, D.; Magnier, E.; Hasinger, G.; Lederer, S. M.; Bold, M.; Tedds, J. A. (2018-02-01)
      This paper defines the UK Infra-Red Telescope (UKIRT) Hemisphere Survey (UHS) and release of the remaining ~12 700 deg 2 of J-band survey data products. The UHS will provide continuous J- and K-band coverage in the Northern ...

    • The VMC survey - XVII : The proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae 

      Cioni, M-R.L.; Bekki, K.; Girardi, L.; De Grijs, Richard; Irwin, M.; Ivanov, Valentin D.; Marconi, M.; Oliveira, Joana M.; Piatti, Andrés E.; Ripepi, V.; van Loon, J. Th (2016-01-28)
      In this study we use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motion of different stellar populations in a tile of 1.5 deg sq. in size in the ...

    • Wide-field optical imaging on ELAIS N1, ELAIS N2, First Look Survey and Lockman Hole : Observations and source catalogues 

      Gonzales-Solares, E.; Irwin, M.; McMahon, R.G.; Hodgkin, S.; Lewis, J.R.; Walton, N.A.; Jarvis, M.J.; Marchetti, L.; Oliver, S.; Perez-Fournon, I.; Siana, B.; Surace, J.; Vaccari, M. (2011)
      We present u-, g-, r-, i- and z-band optical images and associated catalogues taken primarily with the Isaac Newton Telescope Wide Field Camera on the European Large Area ISO Survey (ELAIS) N1 and N2, First Look Survey and ...