Browsing by Author "Raddi, Roberto"

Now showing items 1-8 of 8

    • A deep catalogue of classical Be stars in the direction towards the Perseus Arm : spectral types and interstellar reddenings 

      Raddi, Roberto; Drew, J.E.; Steeghs, D. T. H.; Wright, Nick; Drake, J. J.; Barentsen, Geert; Fabregat, J.; Sale, S. E. (2015-01)
      We present a catalogue of 247 photometrically and spectroscopically confirmed fainter classical Be stars (13 ≲ r ≲ 16) in the direction of the Perseus Arm of the Milky Way (−1° < b < +4°, 120° < ℓ < 140°). The catalogue ...

    • Emission Line Stars In and Beyond the Perseus Arm 

      Raddi, Roberto (University of Hertfordshire, 2013-04-23)
      I present low-resolution (Dl 6 A° ) follow-up spectroscopy of 370 Ha emitters (12 . r . 17) identified with IPHAS, in a 100 deg2 wide section of the Galactic plane that is located between ` = (120 ; 140 ) and b = (􀀀1 ...

    • New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+ 

      Mohr-Smith, M.; Drew, J.E.; Barentsen, G.; Wright, N. J.; Napiwotzki, R.; Corradi, R.L.M.; Eislöffel, J.; Groot, P.; Kalari, V.; Parker, Q. A.; Raddi, Roberto; Sale, S. E.; Unruh, Y.C.; Vink, J. S.; Wesson, R. (2015-07-11)
      O and early B stars are at the apex of galactic ecology, but in the Milky Way, only a minority of them may yet have been identified. We present the results of a pilot study to select and parametrise OB star candidates in ...

    • Optical Digital Galactic Plane Surveys and Star-Cluster Science 

      Drew, J.E.; Raddi, Roberto; EGAPS Consortia (Springer Nature, 2012)
      Over the next few years, the optical surveys IPHAS, UVEX and VPHAS+ will provide complete photometric coverage of the Galactic Plane within the latitude range -5 degrees <b <+5 degrees. Of these surveys, IPHAS is the most ...

    • The second data release of the INT Photometric Hα Survey of the Northern Galactic Plane (IPHAS DR2) 

      Barentsen, Geert; Farnhill, Hywel John; Drew, J.E.; Gonzalez-Solares, E.A.; Greimel, R.; Irwin, M.J.; Miszalski, Brent; Ruhland, Christine; Groot, P.; Mampaso, A.; Sale, S. E.; Henden, A.A.; Aungwerojwit, A.; Barlow, M.J.; Carter, P.R.; Corradi, R.L.M.; Drake, J. J.; Eisloffel, J.; Fabregat, J.; Gansicke, B.T.; Gentile Fusillo, N. P.; Greiss, S.; Hales, A.S.; Hodgkin, S.; Huckvale, L.; Irwin, J.; King, R.; Knigge, C.; Kupfer, T.; Lagadec, E.; Lennon, D.J.; Lewis, J.R.; Mohr-Smith, M.; Morris, R.A.H.; Naylor, T.; Parker, Q. A.; Phillipps, S.; Pyrzas, S.; Raddi, Roberto; Roelofs, G.; Rodriguez-Gil, P.; Sabin, L.; Scaringi, Simone; Steeghs, D.; Suso, J.; Tata, R.; Unruh, Y.C.; van Roestel, J.; Viironen, K.; Vink, J.S.; Walton, N.A.; Wright, Nick; Zijlstra, A.A. (2014-11-11)
      The INT/WFC Photometric Hα Survey of the Northern Galactic Plane (IPHAS) is a 1800 deg2 imaging survey covering Galactic latitudes |b| < 5° and longitudes ℓ = 30°–215° in the r, i, and Hα filters using the Wide Field Camera ...

    • Tracing the structure of the Perseus arm with IPHAS 

      Raddi, Roberto; Drew, J.E.; Sale, S.E.; Steeghs, D.T.H. (Springer Nature, 2012)
      Research aiming to describe the spiral structure of the Milky Way disc has to confront both difficulties in obtaining distances and the high interstellar extinction found in the Galactic plane. We present a study of a ...

    • The VST photometric hα survey of the Southern Galactic Plane and Bulge (VPHAS+) 

      Drew, J.E.; González-Solares, Eduardo A.; Greimel, Robert; Irwin, M.J.; Küpcü Yoldaş, A.; Lewis, J.R.; Barentsen, Geert; Eislöffel, Jochen; Farnhill, Hywel J.; Martin, Bill; Walton, Nicholas A.; Mohr-Smith, M.; Raddi, Roberto; Sale, Stuart E.; Wright, Nicholas J.; Groot, Paul J.; Barlow, Michael J.; Corradi, R.L.M.; Drake, Jeremy J.; Fabregat, Juan; Frew, David J.; Gänsicke, Boris T.; Knigge, Christian; Mampaso, Antonio; Morris, R.A.H.; Naylor, Tim J.; Parker, Quentin A.; Phillipps, Steven; Ruhland, Christine; Steeghs, Danny T H; Unruh, Y.C.; Vink, Jorick S.; Wesson, Roger; Zijlstra, Albert (2014-05-21)
      The VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Hα at ~1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5o ...

    • The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation 

      WEAVE consortium; Jin, Shoko; Trager, Scott C.; Dalton, Gavin B.; Aguerri, J. Alfonso L.; Drew, J. E.; Falcón-Barroso, Jesús; Gänsicke, Boris T.; Hill, Vanessa; Iovino, Angela; Pieri, Matthew M.; Poggianti, Bianca M.; Smith, D. J. B.; Vallenari, Antonella; Abrams, Don Carlos; Aguado, David S.; Antoja, Teresa; Aragón-Salamanca, Alfonso; Ascasibar, Yago; Babusiaux, Carine; Balcells, Marc; Barrena, R.; Battaglia, Giuseppina; Belokurov, Vasily; Bensby, Thomas; Bonifacio, Piercarlo; Bragaglia, Angela; Carrasco, Esperanza; Carrera, Ricardo; Cornwell, Daniel J.; Domínguez-Palmero, Lilian; Duncan, Kenneth J.; Famaey, Benoit; Fariña, Cecilia; Gonzalez, Oscar A.; Guest, Steve; Hatch, Nina A.; Hess, Kelley M.; Hoskin, Matthew J.; Irwin, Mike; Knapen, Johan H.; Monguió, Maria; Raddi, Roberto; Drake, Alyssa; Gledhill, T. M.; Hardcastle, Martin J.; Harris, Amy; Jarvis, Matt J.; Read, Shaun C.; Williams, Wendy L.; Wright, Nicholas J. (2023-03-11)
      WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, will see first light in late 2022. WEAVE comprises a new 2-degree field-of-view prime-focus corrector system, ...