Now showing items 1-20 of 22

    • 280 one-opposition near-Earth asteroids recovered by the EURONEAR with the Isaac Newton Telescope 

      Vaduvescu, O.; Hudin, L.; Mocnik, T.; Char, F.; Sonka, A.; Tudor, V.; Ordonez-Etxeberria, I.; Alfaro, M. Diaz; Ashley, R.; Errmann, R.; Short, P.; Moloceniuc, A.; Cornea, R.; Inceu, V.; Zavoianu, D.; Popescu, M.; Curelaru, L.; Mihalea, S.; Stoian, A. -M.; Boldea, A.; Toma, R.; Fields, L.; Grigore, V.; Stoev, H.; Lopez-Martinez, F.; Humphries, N.; Sowicka, P.; Ramanjooloo, Y.; Manilla-Robles, A.; Riddick, F. C.; Jimenez-Lujan, F.; Mendez, J.; Aceituno, F.; Sota, A.; Jones, D.; Hidalgo, S.; Murabito, S.; Oteo, I.; Bongiovanni, A.; Zamora, O.; Pyrzas, S.; Genova-Santos, R.; Font, J.; Bereciartua, A.; Perez-Fournon, I.; Martinez-Vazquez, C. E.; Monelli, M.; Cicuendez, L.; Monteagudo, L.; Agulli, I.; Bouy, H.; Huelamo, N.; Monguio, M.; Gansicke, B. T.; Steeghs, D.; Gentile-Fusillo, N. P.; Hollands, M. A.; Toloza, O.; Manser, C. J.; Dhillon, V.; Sahman, D.; Fitzsimmons, A.; McNeill, A.; Thompson, A.; Tabor, M.; Murphy, D. N. A.; Davies, J.; Snodgrass, C.; Triaud, A. H. M. J.; Groot, P. J.; Macfarlane, S.; Peletier, R.; Sen, S.; Ikiz, T.; Hoekstra, H.; Herbonnet, R.; Kohlinger, F.; Greimel, R.; Afonso, A.; Parker, Q. A.; Kong, A. K. H.; Bassa, C.; Pleunis, Z. (2018-01-01)
      Context. One-opposition near-Earth asteroids (NEAs) are growing in number, and they must be recovered to prevent loss and mismatch risk, and to improve their orbits, as they are likely to be too faint for detection in ...
    • Discovery of a Long-Lived, High Amplitude Dusty Infrared Transient 

      Britt, C. T.; Maccarone, T. J.; Green, J. D.; Jonker, P. G.; Hynes, R. I.; Torres, M. A. P.; Strader, J.; Chomiuk, L.; Salinas, R.; Lucas, P.; Pena, C. Contreras; Kurtev, R.; Heinke, C.; Smith, L.; Wright, N. J.; Johnson, C.; Steeghs, D.; Nelemans, G. (2016-08-11)
      We report the detection of an infrared selected transient which has lasted at least 5 years, first identified by a large mid-infrared and optical outburst from a faint X-ray source detected with the Chandra X-ray Observatory. ...
    • 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. ...
    • First results of an Hα based search of classical Be stars in the Perseus Arm and beyond 

      Raddi, R.; Drew, J.E.; Farnhill, H.J.; Fabregat, J.; Steeghs, D.; Wright, N.J.; Drake, J.J.; Sale, S.E.; Barlow, M.J.; Greimel, R.; Sabin, L.; Corradi, R.M.L. (2013-04)
      We investigate a region of the Galactic plane, between 120° ≤ l ≤ 140° and-1° ≤ b≤+4°, and uncover a population of moderately reddened (E(B-V) ~ 1) classical Be stars within and beyond the Perseus and Outer Arms. 370 ...
    • High spatial resolution Galactic 3D extinction mapping with IPHAS 

      Sale, S.E.; Drew, J.E.; Unruh, Y.C.; Irwin, M.J.; Knigge, C.; Phillips, S.; Zijlstra, A.A.; Gansicke, B.T.; Greimel, R.; Groot, P.; Mampaso, A.; Morris, R.A.H.; Napiwotzki, R.; Steeghs, D.; Walton, N.A. (2009)
      We present an algorithm (MEAD, for ‘Mapping Extinction Against Distance’) which will determine intrinsic (r′−i′) colour, extinction, and distance for early-A to K4 stars extracted from the IPHAS r′/i′/Hα photometric data ...
    • Identification of a population of X-ray-emitting massive stars in the Galactic plane 

      Anderson, G.E.; Gaensler, B.M.; Kaplan, D.L.; Posselt, B.; Slane, P.O.; Mauerhan, J.C.; Benjamin, R.A.; Brogan, C.L.; Chakrabarty, D.; Drake, J.; Drew, J.E.; Grindlay, J.E.; Hong, J.; Lazio, T.J.W.; Lee, J.C.; Steeghs, D.; Van Kerkwijk, M.H. (2011)
      We present X-ray, infrared, optical, and radio observations of four previously unidentified Galactic plane X-ray sources: AX J163252-4746, AX J184738-0156, AX J144701-5919, and AX J144547-5931. Detection of each source ...
    • Initial Data Release from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS) 

      Gonzalez-Solares, E.; Walton, N.A.; Greimel, R.; Drew, J.E.; Irwin, M.J.; Sale, S.E.; Andrews, K.; Aungwerojwit, A.; Barlow, M.J.; van den Besselaar, E.; Corradi, R.L.M.; Gaensicke, B.T.; Groot, P.; Hales, A.; Hopewell, E.C.; Hu, H.; Irwin, J.; Knigge, C.; Lagadec, E.; Leisy, P.; Lewis, J.R.; Mampaso, A.; Matsuura, M.; Moont, B.; Morales-Rueda, L.; Morris, R.A.H.; Naylor, T.; Parker, Q. A.; Prema, P.; Pyrzas, S.; Rixon, G.T.; Rodriguez-Gil, P.; Roelofs, G.; Sabin, L.; Skillen, I.; Suso, J.; Tata, R.; Viironen, K.; Vink, J.S.; Witham, A.; Wright, Nick; Zijlstra, A.A.; Zurita, A.; Drake, J.; Fabregat, J.; Lennon, D.J.; Lucas, P.W.; Martin, E.L.; Phillipps, S.; Steeghs, D.; Unruh, Y.C. (2008)
      The INT/WFC Photometric Hα Survey of the Northern Galactic Plane (IPHAS) is an imaging survey being carried out in Hα, r′ and i′ filters, with the Wide Field Camera (WFC) on the 2.5-m Isaac Newton Telescope (INT) to a depth ...
    • Initial data release of the Kepler-INT survey 

      Greiss, S.; Steeghs, D.; Gaensicke, B. T.; Martin, E. L.; Groot, P. J.; Irwin, M.J.; Gonzalez-Solares, E.; Greimel, R.; Knigge, C.; Ostensen, R. H.; Verbeek, K.; Drew, J.E.; Drake, J.; Jonker, P. G.; Ripepi, V.; Scaringi, S.; Southworth, J.; Still, M.; Wright, Nick; Farnhill, H.; van Haaften, L. M.; Shah, S. (2012-07)
      This paper describes the first data release of the Kepler-INT Survey (KIS) that covers a 116 deg(2) region of the Cygnus and Lyra constellations. The Kepler field is the target of the most intensive search for transiting ...
    • The INT Photometric Ha Survey of the Northern Galactic Plane (IPHAS) 

      Drew, J.E.; Greimel, R.; Irwin, M.J.; Aungwerojwit, A.; Barlow, M.J.; Corradi, R.L.M.; Drake, J.; Gansicke, B.T.; Groot, P.; Hales, A.; Hopewell, E.C.; Irwin, J.; Knigge, C.; Leisy, P.; Lennon, D.J.; Mampaso, A.; Masheder, M.R.W.; Matsuura, M.; Morales-Rueda, L.; Morris, R.A.H.; Parker, Q.A.; Phillipps, S.; Rodriguez-Gil, P.; Roelofs, G.; Skillen, I.; Sokoloski, J.; Steeghs, D.; Unruh, Y.C.; Viironen, K.; Vink, J.S.; Walton, N.A.; Witham, A.R.; Wright, Nick; Zijlstra, A.A.; Zurita, A. (2005)
    • The IPHAS catalogue of Hα emission-line sources in the northern Galactic plane 

      Witham, A.R.; Knigge, C.; Drew, J.E.; Greimel, R.; Steeghs, D.; Gansicke, B.T.; Groot, P.; Mampaso, A. (2008)
      We present a catalogue of point-source Hα emission-line objects selected from the INT/WFC Photometric Hα Survey (IPHAS) of the northern Galactic plane.
    • IPHAS discoveries of young stars towards Cyg OB2 and its southern periphery 

      Vink, J.S.; Drew, J.E.; Steeghs, D.; Wright, Nick; Martin, E.L.; Gansicke, B.T.; Greimel, R.; Drake, J. (2008)
      We report on the discovery of over 50 strong Hα emitting objects towards the large OB association Cyg OB2 and the H ii region DR 15 on its southern periphery. This was achieved using the INT Photometric Hα Survey of the ...
    • The IPHAS-POSS-I proper motion survey of the Galactic plane 

      Deacon, Niall; Groot, P.; Drew, J.E.; Greimel, R.; Hambly, N.C.; Irwin, M.J.; Aungwerojwit, A.; Drake, J.; Steeghs, D. (2009)
      We present a proper motion survey of the Galactic plane, using Isaac Newton Telescope (INT) Photometric Hα Survey (IPHAS) data and Palomar Sky Survey (POSS)-I Schmidt plate data as a first epoch, that probes down to proper ...
    • A LOFAR prompt search for radio emission accompanying X-ray flares in GRB 210112A 

      Hennessy, A.; Starling, R. L. C.; Rowlinson, A.; Ruiter, I. de; Kumar, A.; Eyles-Ferris, R. A. J.; Ror, A. K.; Anderson, G. E.; Gourdji, K.; Horst, A. J. van der; Pandey, S. B.; Shimwell, T. W.; Steeghs, D.; Stylianou, N.; Veen, S. ter; Wiersema, K.; Wijers, R. A. M. J. (2023-11-01)
      The composition of relativistic gamma-ray burst (GRB) jets and their emission mechanisms are still debated, and they could be matter or magnetically dominated. One way to distinguish these mechanisms arises because a ...
    • Newly discovered cataclysmic variables from the INT/WFC photometric Ha survey of the northern Galactic plane 

      Witham, A.R.; Knigge, C.; Aungwerojwit, A.; Drew, J.E.; Gansicke, B.T.; Greimel, R.; Groot, P.; Roelofs, G.; Steeghs, D.; Woudt, P. (2007)
    • The orbital period of V458 Vulpeculae, a post-double common-envelope nova 

      Rodriguez-Gil, P.; Santander-Garcia, M.; Knigge, C.; Corradi, R.L.M.; Gansicke, B.T.; Barlow, M.J.; Drake, J.; Drew, J.E.; Miszalski, B.; Napiwotzki, R.; Steeghs, D.; Wesson, R.; Zijlstra, A.A.; Jones, D.H.; Liimets, T.; Munoz-Darias, T.; Pyrzas, S.; Rubio-Diez, M. (2010)
      We present time-resolved optical spectroscopy of V458 Vulpeculae (Nova Vul 2007 No. 1) spread over a period of 15 months starting 301 d after its discovery. Our data reveal radial-velocity variations in the He II lambda ...
    • Physical parameters of IPHAS-selected classical Be stars. (I. Determination procedure and evaluation of the results.) 

      Gkouvelis, L.; Fabregat, J.; Zorec, J.; Steeghs, D.; Drew, J. E.; Raddi, R.; Wright, N. J.; Drake, J. J. (2016-07-01)
      We present a semi-automatic procedure to obtain fundamental physical parameters and distances of classical Be (CBe) stars, based on the Barbier-Chalonge-Divan (BCD) spectrophotometric system. Our aim is to apply this ...
    • A planetary nebula around Nova V458 Vulpeculae undergoing flash ionization 

      Wesson, R.; Barlow, M.J.; Corradi, R.L.M.; Drew, J.E.; Groot, P.; Knigge, C.; Steeghs, D.; Gaensicke, B.T.; Napiwotzki, R.; Rodriguez-Gil, P.; Zijlstra, A.A.; Bode, M.F.; Drake, J.; Frew, D.J.; Gonzalez-Solares, E.; Greimel, R.; Irwin, M.J.; Morales-Rueda, L.; Nelemans, G.; Parker, Q.A.; Sale, S.E. (2008)
    • The properties of cataclysmic variables in photometric Ha surveys 

      Witham, A.R.; Knigge, C.; Gansicke, B.T.; Aungwerojwit, A.; Corradi, R.M.; Drew, J.E.; Greimel, R.; Groot, P.; Morales-Rueda, L.; Rodriguez-Flores, E.R.; Rodriguez-Gil, P.; Steeghs, D. (2006)
    • A search for white dwarfs in the Galactic plane: : the field and the open cluster population 

      Raddi, R.; Catalan, S.; Gaensicke, B. T.; Hermes, J. J.; Napiwotzki, R.; Koester, D.; Tremblay, P. -E.; Barentsen, G.; Farnhill, H. J.; Mohr-Smith, M.; Drew, J. E.; Groot, P. J.; Guzman-Ramirez, L.; Parker, Q. A.; Steeghs, D.; Zijlstra, A. (2016-04-01)
      We investigated the prospects for systematic searches of white dwarfs at low Galactic latitudes, using the VLT Survey Telescope (VST) H$\alpha$ Photometric Survey of the Galactic plane and Bulge (VPHAS+). We targeted 17 ...
    • 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 ...