Items where Author is "Heber, U."

Number of items: 61.
Article
  • The ESO supernovae type Ia progenitor survey (SPY) : The radial velocities of 644 DA white dwarfs. (2019) R. Napiwotzki, C. A. Karl, T. Lisker, S. Catalan, H. Drechsel, U. Heber, D. Homeier, D. Koester, B. Leibundgut, T. R. Marsh, S. Moehler, G. Nelemans, D. Reimers, A. Renzini, A. Stroer and L. Yungelson
  • Ultraviolet-excess sources with a red/infrared counterpart : Low-mass companions, debris discs and QSO selection. (2014) K. Verbeek, Paul J. Groot, Simone Scaringi, Jorge Casares, Jesus M. Corral-Santana, Niall Deacon, J.E. Drew, B.T. Gänsicke, E. Gonzalez-Solares, R. Greimel, U. Heber, R. Napiwotzki, R.H. Ostensen, D. Steeghs, N.J. Wright and A. Zijlstra
  • Spectroscopic follow-up of ultraviolet-excess objects selected from the UVEX survey. (2012) K. Verbeek, P.J. Groot, S. Scaringi, G. Nelemans, R. Napiwotzki, B. Spikings, J.E. Drew, R.H. Østensen, D. Steeghs, B.T. Gänsicke, J. Casares, J.M. Corral-Santana, R.L.M. Corradi, Niall Deacon, J.J. Drake, E. González-Solares, M.J. Irwin, R. Greimel, U. Heber and C. Knigge
  • MUCHFUSS - massive unseen companions to hot faint underluminous stars from SDSS. (2012) S. Geier, V. Schaffenroth, H. Hirsch, A. Tillich, U. Heber, P. F. L. Maxted, R. H. Ostensen, B. N. Barlow, S. J. O'Toole, T. Kupfer, T. Marsh, B. Gaensicke, R. Napiwotzki, O. Cordes, S. Mueller, L. Classen, E. Ziegerer and H. Drechsel
  • Binaries discovered by the MUCHFUSS project SDSS J08205+0008 - An eclipsing subdwarf B binary with brown dwarf companion. (2011) S. Geier, V. Schaffenroth, H. Drechsel, U. Heber, T. Kupfer, A. Tillich, R. Ostensen, K. Smolders, P. Degroote, P.F.L. Maxted, B.N. Barlow, B.T. Gansicke, T.R. Marsh and R. Napiwotzki
  • Binaries discovered by the SPY survey VI : Discovery of a low mass companion to the hot subluminous planetary nebula central star EGB5-a recently ejected common envelope? (2011) S. Geier, R. Napiwotzki, U. Heber and G. Nelemans
  • The Hyper-MUCHFUSS project : probing the Galactic halo with sdB stars. (2011) A. Tillich, U. Heber, S. Geier, H. Hirsch, P.F.L. Maxted, B.T. Gansicke, T.R. Marsh, R. Napiwotzki, R. Ostensen and R.D. Scholz
  • The MUCHFUSS project - Searching for hot subdwarf binaries with massive unseen companions : survey, target selection and atmospheric parameters. (2011) S. Geier, H. Hirsch, A. Tillich, P.F.L. Maxted, S.J. Bentley, R. Ostensen, U. Heber, B.T. Gansicke, T.R. Marsh, R. Napiwotzki, B.N. Barlow and S. O'Toole
  • Massive unseen companions to hot faint underluminous stars from SDSS (MUCHFUSS) - Analysis of seven close subdwarf B binaries. (2011) S. Geier, P.F.L. Maxted, R. Napiwotzki, R. Ostensen, U. Heber, H. Hirsch, T. Kupfer, S. Muller, A. Tillich, B.N. Barlow, R. Oreiro, T.A. Ottosen, C. Copperwheat, B.T. Gansicke and T.R. Marsh
  • Binaries discovered by the SPY project: V. GD 687 – a massive double degenerate binary progenitor that will merge within a Hubble time. (2010) S. Geier, U. Heber, T. Kupfer and R. Napiwotzki
  • Hot subdwarf stars in close-up view. I. Rotational properties of subdwarf B stars in close binary systems and nature of their unseen companions. (2010) S. Geier, U. Heber, P. Podsiadlowski, H. Edelmann, R. Napiwotzki, T. Kupfer and S. Muller
  • High resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia Progenitor Survey III. DA white dwarfs. (2009) D. Koester, B. Voss, R. Napiwotzki, N. Christlieb, D. Homeier, T. Lisker, D. Reimers and U. Heber
  • The B-type giant HD 271791 in the Galactic halo : Linking run-away stars to hyper-velocity stars. (2008) U. Heber, H. Edelmann, R. Napiwotzki, M. Altmann and R.D. Scholz
  • LMC origin of the hyper-velocity star HE 0437-5439: Beyond the supermassive black hole paradigm. (2008) N. Przybilla, M.A. Nieva, U. Heber, M. Firnstein, K. Butler, R. Napiwotzki and H. Edelmann
  • 3D kinematics of white dwarfs from the SPY project. II. (2006) E.M. Pauli, R. Napiwotzki, U. Heber, M. Altmann and M. Odenkirchen
  • Rotation velocities of white dwarfs. III. DA stars with convective atmospheres. (2005) C. Karl, R. Napiwotzki, U. Heber, S. Dreizler, D. Koester and I.N. Reid
  • Hot subdwarfs from the ESO Supernova Ia Progenitor Survey. I. Atmospheric parameters and cool companions of sdB stars. (2005) T. Lisker, U. Heber, R. Napiwotzki, N. Christlieb, Z. Han, D. Homeier and D. Reimers
  • HE 0437-5439: an unbound hypervelocity main-sequence B-type star. (2005) H. Edelmann, R. Napiwotzki, U. Heber, N. Christlieb and D. Reimers
  • Close binary EHB stars from SPY. (2004) R. Napiwotzki, C. Karl, T. Lisker, U. Heber, N. Christlieb, D. Reimers, G. Nelemans and D. Homeier
  • HS 2333 3927: A new sdB dM binary with a large reflection effect. (2004) U. Heber, H. Drechsel, R. Ostensen, C. Karl, R. Napiwotzki, M. Altmann, O. Cordes, J.E. Solheim, B. Voss, D. Koester and S. Folkes
  • FUSE Observations of EC14026 Stars. (2004) P. Chayer, G. Fontaine, M. Fontaine, R. Lamontagne, F. Wesemael, J. Dupuis, U. Heber, R. Napiwotzki and S. Moehler
  • HS 2333 + 3927: a new sdB binary with a large reflection effect. (2004) C. Karl, U. Heber, H. Drechsel, R. Napiwotzki, M. Altmann, R. Ostensen, S. Folkes, J.E. Solheim, O. Cordes, B. Voss and D. Koester
  • Spectral types and masses of white dwarfs in globular clusters. (2004) S. Moehler, D. Koester, M. Zoccali, F.R. Ferraro, U. Heber, R. Napiwotzki and A. Renzini
  • Spectroscopic analysis of sdB stars from the ESO Supernova Ia Progenitor Survey. (2004) T. Lisker, U. Heber, R. Napiwotzki, N. Christlieb, Z. Han, D. Homeier and D. Reimers
  • Discovery of a helium-core white dwarf progenitor. (2003) U. Heber, H. Edelmann, T. Lisker and R. Napiwotzki
  • Binaries discovered by the SPY project. III. HE 2209-1444: A massive, short period double degenerate. (2003) C. Karl, R. Napiwotzki, G. Nelemans, N. Christlieb, D. Koester, U. Heber and D. Reimers
  • 3D kinematics of white dwarfs from the SPY project. (2003) E.M. Pauli, R. Napiwotzki, M. Altmann, U. Heber, M. Odenkirchen and F. Kerber
  • Spectral analysis of sdB Stars from the Hamburg Quasar Survey. (2003) H. Edelmann, U. Heber, H.J. Hagen, S. Dreizler, R. Napiwotzki, D. Engels and M. Lemke
  • SPY - the ESO Supernovae type Ia Progenitor survey. (2003) R. Napiwotzki, N. Christlieb, H. Drechsel, H.J. Hagen, U. Heber, D. Homeier, C. Karl, D. Koester, B. Leibundgut, T.R. Marsh, S. Moehler, G. Nelemans, E.M. Pauli, D. Reimers, A. Renzini and L. Yungelson
  • Resolving subdwarf B stars in binaries by HST imaging. (2002) U. Heber, S. Moehler, R. Napiwotzki, P. Thejll and E. Green
  • HS 0705 6700: A new eclipsing sdB binary. (2001) H. Drechsel, U. Heber, R. Napiwotzki, R. Ostensen, J.E. Solheim, F. Johannessen, S.L. Schuh, J. Deetjen and S. Zola
  • High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia progenitor survey (SPY). I. (2001) D. Koester, R. Napiwotzki, N. Christlieb, H. Drechsel, H.J. Hagen, U. Heber, D. Homeier, C. Karl, B. Leibundgut, S. Moehler, G. Nelemans, D. Reimers, E.M. Pauli, A. Renzini and L. Yungelson
  • Binaries discovered by the SPY project. I. HE 1047-0436: A subdwarf B white dwarf syste. (2001) R. Napiwotzki, H. Edelmann, U. Heber, C. Karl, H. Drechsel, E.M. Pauli and N. Christlieb
  • Metal abundances of sdB stars. (2001) H. Edelmann, U. Heber and R. Napiwotzki
  • Search for progenitors of supernovae type Ia with SPY. (2001) R. Napiwotzki, N. Christlieb, H. Drechsel, H.J. Hagen, U. Heber, D. Homeier, C. Karl, D. Koester, B. Leibundgut, T.R. Marsh, S. Moehler, G. Nelemans, E.M. Pauli, D. Reimers, A. Renzini and L. Yungelson
  • First VLT spectra of white dwarfs in a globular cluster. (2000) S. Moehler, U. Heber, R. Napiwotzki, D. Koester and A. Renzini
  • Abundances of UV bright stars in globular clusters. I. ROA 5701 in omega Centauri and Barnard 29 in M 13. (1998) S. Moehler, U. Heber, M. Lemke and R. Napiwotzki
    • Monograph
  • Spectral Analysis of sdB Stars from the Hamburg ESO Survey. (2001) H. Edelmann, U. Heber, R. Napiwotzki, M. Lemke and N. Christlieb
    • Conference or Workshop Item
  • NLTE spectral analysis of helium-rich sdO stars from the southern HK survey. (1996) J.S. Drilling, R. Napiwotzki, S. Dreizler, U. Heber and T.C. Beers
    • Other
  • Binary sdB Stars with Massive Compact Companions. (2008) S. Geier, C. Karl, H. Edelmann, U. Heber and R. Napiwotzki
  • Hypervelocity Stars: Young and Heavy or Old and Light? (2008) U. Heber, H. Hirsch, H. Edelmann, R. Napiwotzki, S. O'Toole, W. Brown and M. Altmann
  • Metal Abundances of Subdwarf B Stars from SPY - a Pattern Emerges. (2008) S. Geier, U. Heber and R. Napiwotzki
  • Model Spectra of Hot Subdwarfs for the Gaia Mission. (2008) Luke Hindson, R. Napiwotzki, U. Heber and M. Lemke
  • Radial Velocity Variable sdO/Bs from SPY - Preliminary Orbits of Three New Short Period Binaries. (2008) S. Geier, U. Heber and R. Napiwotzki
  • 3D-Kinematics of White Dwarfs from the SPY-Project. (2007) R. Richter, U. Heber and R. Napiwotzki
  • Binary White Dwarfs in the Supernova Ia Progenitor Survey. (2007) R. Napiwotzki, C. Karl, G. Nelemans, L. Yungelson, N. Christlieb, H. Drechsel, U. Heber, D. Homeier, D. Koester, B. Leibundgut, T.R. Marsh, S. Moehler, A. Renzini and D. Reimers
  • Spectroscopic Analysis of Subluminous B Stars in Binaries with Compact Companions. (2007) S. Geier, C. Karl, H. Edelmann, U. Heber and R. Napiwotzki
  • The Subdwarf B + White Dwarf Binary KPD 1930+2752, a Supernova Type Ia Progenitor Candidate. (2007) S. Geier, S. Nesslinger, U. Heber, N. Przybilla, R. Napiwotzki and R-P. Kudritzki
  • The Mass of the sdB Primary of the Binary HS 2333+3927. (2005) U. Heber, H. Drechsel, C. Karl, R. Ostensen, S. Folkes, R. Napiwotzki, M. Altmann, O. Cordes, J.E. Solheim, B. Voss and D. Koester
  • New Results from the Supernova Ia Progenitor Survey. (2005) R. Napiwotzki, C. Karl, G. Nelemans, L. Yungelson, N. Christlieb, H. Drechsel, U. Heber, D. Homeier, D. Koester, J. Kruk, B. Leibundgut, T.R. Marsh, S. Moehler, A. Renzini and D. Reimers
  • Rotation Velocities of DA White Dwarfs with Convective Atmospheres. (2005) C. Karl, U. Heber, R. Napiwotzki, S. Dreizler, D. Koester and I.N. Reid
  • Subdwarf B Binaries from the SPY Project. (2005) C. Karl, U. Heber and R. Napiwotzki
  • Subdwarf B Stars from the ESO Supernova Ia Progenitor Survey -- Observation versus Theory. (2005) T. Lisker, U. Heber, R. Napiwotzki, N. Christlieb, Z. Han, D. Homeier and D. Reimers
  • Subluminous O Stars from the ESO Supernova Progenitor Survey - Observation versus Theory. (2005) A. Stroeer, U. Heber, T. Lisker, R. Napiwotzki and S. Dreizler
  • Double Degenerate and Progenitors of Supernovae Type Ia. (2004) R. Napiwotzki, L. Yungelson, G. Nelemans, T.R. Marsh, B. Leibundgut, A. Renzini, D. Homeier, D. Koester, S. Moehler, N. Christlieb, D. Reimers, H. Drechsel, U. Heber, C. Karl and E.M. Pauli
  • NLTE Spectral Analysis of Iron Group Elements in the Hot Subluminous O-star BD+28 4211. (2003) M. Ramspeck, S. Haas, R. Napiwotzki, U. Heber, J. Deetjen and S. Dreizler
  • Stellar Wind Signatures in sdB Stars. (2003) U. Heber, P.F.L. Maxted, T.R. Marsh, C. Knigge and J.E. Drew
  • Spectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gap. (2001) H. Edelmann, U. Heber and R. Napiwotzki
  • Spectral analysis of sdB Stars from the Hamburg ESO Survey. (2001) H. Edelmann, U. Heber, R. Napiwotzki, M. Lemke and N. Christlieb
  • Spectral analysis of hot subluminous stars. (1999) U. Heber, H. Edelmann, M. Lemke, R. Napiwotzki and D. Engels
  • Spectral analysis of the binary sdB star Feige 36. (1999) H. Edelmann, U. Heber, R. Napiwotzki, I.N. Reid and R. Saffer