Search Results - "Gaensicke, B."

The frequency and infrared brightness of circumstellar discs at white dwarfs by Rocchetto, M., Farihi, J., Gänsicke, B. T., Bergfors, C.

“…White dwarfs whose atmospheres are polluted by terrestrial-like planetary debris have become a powerful and unique tool to study evolved planetary systems…”
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Evidence for Water in the Rocky Debris of a Disrupted Extrasolar Minor Planet by Farihi, J., Gänsicke, B. T., Koester, D.

“…The existence of water in extrasolar planetary systems is of great interest because it constrains the potential for habitable planets and life. We have…”
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DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission by Girven, J., Gänsicke, B. T., Steeghs, D., Koester, D.

“…We present a method which uses colour-colour cuts on the Sloan Digital Sky Survey (SDSS) photometry to select white dwarfs with hydrogen-rich (DA) atmospheres…”
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The chemical diversity of exo-terrestrial planetary debris around white dwarfs by Gänsicke, B. T., Koester, D., Farihi, J., Girven, J., Parsons, S. G., Breedt, E.

“…We present Hubble Space Telescope (HST) ultraviolet spectroscopy of the white dwarfs PG 0843+516, PG 1015+161, SDSS 1228+1040, and GALEX 1931+0117, which…”
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Likely detection of water-rich asteroid debris in a metal-polluted white dwarf by Raddi, R., Gänsicke, B. T., Koester, D., Farihi, J., Hermes, J. J., Scaringi, S., Breedt, E., Girven, J.

“…The cool white dwarf SDSS J124231.07+522626.6 exhibits photospheric absorption lines of eight distinct heavy elements in medium resolution optical spectra,…”
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Variable emission from a gaseous disc around a metal-polluted white dwarf by Wilson, D J, Gaensicke, B T, Koester, D, Raddi, R, Breedt, E, Southworth, J, Parsons, S G

“…We present the discovery of strongly variable emission lines from a gaseous disc around the DA white dwarf SDSS J1617+1620, a star previously found to have an…”
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Detached cataclysmic variables are crossing the orbital period gap by Zorotovic, M., Schreiber, M. R., Parsons, S. G., Gänsicke, B. T., Hardy, A., Agurto-Gangas, C., Nebot Gómez-Morán, A., Rebassa-Mansergas, A., Schwope, A. D.

“…A central hypothesis in the theory of cataclysmic variable (CV) evolution is the need to explain the observed lack of accreting systems in the ≃2–3 h orbital…”
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The incidence of magnetic fields in cool DZ white dwarfs by Hollands, M. A., Gänsicke, B. T., Koester, D.

“…Little is known about the incidence of magnetic fields among the coolest white dwarfs. Their spectra usually do not exhibit any absorption lines as the…”
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Orbital periods and component masses of three double white dwarfs by Rebassa-Mansergas, A, Parsons, S G, Garcia-Berro, E, Gaensicke, B T, Schreiber, M R, Rybicka, M, Koester, D

“…The merger of close double white dwarfs (CDWDs) is one of the favourite evolutionary channels for producing Type Ia supernovae (SN Ia). Unfortunately, current…”
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Gaseous Metal Disk Around a White Dwarf by Gänsicke, B.T, Marsh, T.R, Southworth, J, Rebassa-Mansergas, A

“…The destiny of planetary systems through the late evolution of their host stars is very uncertain. We report a metal-rich gas disk around a moderately hot and…”
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The second data release of the INT Photometric Ha Survey of the Northern Galactic Plane (IPHAS DR2) by Barentsen, Geert, Farnhill, H J, Drew, J E, González-Solares, E A, Greimel, R, Irwin, M J, Miszalski, B, Ruhland, C, Groot, P, Mampaso, A, Sale, S E, Henden, A A, Aungwerojwit, A, Barlow, M J, Carter, P J, Corradi, R LM, Drake, J J, Eislöffel, J, Fabregat, J, Gänsicke, B T, Fusillo, N P Gentile, 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, R, Roelofs, G HA, Rodríguez-Gil, P, Sabin, L, Scaringi, S, Steeghs, D, Suso, J, Tata, R, Unruh, Y C, van Roestel, J, Viironen, K, Vink, J S, Walton, N A, Wright, N J, Zijlstra, A A

“…The INT/WFC Photometric H... Survey of the Northern Galactic Plane (IPHAS) is a 1800 deg... imaging survey covering Galactic latitudes |b| < 5... and…”
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Physical properties of IP Pegasi: an eclipsing dwarf nova with an unusually cool white dwarf by Copperwheat, C. M., Marsh, T. R., Dhillon, V. S., Littlefair, S. P., Hickman, R., Gänsicke, B. T., Southworth, J.

“…We present high-speed photometric observations of the eclipsing dwarf nova IP Pegasi (IP Peg) taken with the triple-beam camera ULTRACAM mounted on the William…”
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Scars of intense accretion episodes at metal-rich white dwarfs by Farihi, J., Gänsicke, B. T., Wyatt, M. C., Girven, J., Pringle, J. E., King, A. R.

“…A re-evaluation of time-averaged accretion rates at DBZ-type white dwarfs points to historical, time-averaged rates significantly higher than the currently…”
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A trio of metal-rich dust and gas discs found orbiting candidate white dwarfs with K-band excess by Farihi, J., Gänsicke, B. T., Steele, P. R., Girven, J., Burleigh, M. R., Breedt, E., Koester, D.

“…This paper reports follow-up photometric and spectroscopic observations, including warm Spitzer IRAC photometry of seven white dwarfs from the SDSS with…”
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Post-common envelope binaries from SDSS – VII. A catalogue of white dwarf-main sequence binaries by Rebassa-Mansergas, A., Gänsicke, B. T., Schreiber, M. R., Koester, D., Rodríguez-Gil, P.

“…We present a catalogue of 1602 white-dwarf–main-sequence (WDMS) binaries from the spectroscopic Sloan Digital Sky Survey Data Release 6 (SDSS DR6). Among…”
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Post-common envelope binaries from SDSS - XIV. The DR7 white dwarf-main-sequence binary catalogue by Rebassa-Mansergas, A., Nebot Gómez-Morán, A., Schreiber, M. R., Gänsicke, B. T., Schwope, A., Gallardo, J., Koester, D.

“…We present an updated version of the spectroscopic white dwarf-main-sequence (WDMS) binary catalogue from the Sloan Digital Sky Survey (SDSS). 395 new systems…”
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CSS100603:112253−111037: a helium-rich dwarf nova with a 65 min orbital period by Breedt, E., Gänsicke, B. T., Marsh, T. R., Steeghs, D., Drake, A. J., Copperwheat, C. M.

“…Abstract We present time-resolved optical spectroscopy of the dwarf nova CSS100603:112253−111037. Its optical spectrum is rich in helium, with broad,…”
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1000 cataclysmic variables from the Catalina Real-time Transient Survey by Breedt, E, Gänsicke, B T, Drake, A, Rodríguez-Gil, P, Parsons, S G, Marsh, T R, Szkody, P, Schreiber, M R, Djorgovski, S G

“…Over six years of operation, the Catalina Real-time Transient Survey (CRTS) has identified 1043 cataclysmic variable (CV) candidates -- the largest sample of…”
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The substellar companion in the eclipsing white dwarf binary SDSS J141126.20+200911.1 by Littlefair, S P, Casewell, S L, Parsons, S G, Dhillon, V S, Marsh, T R, Gaensicke, B T, Bloemen, S, Catalan, S, Irawati, P, Hardy, L K, Mcallister, M, Bours, M CP, Richichi, Andrea, Burleigh, M R, Burningham, B, Breedt, E, Kerry, P

“…We present high time resolution SDSS-g' and SDSS-z' light curves of the primary eclipse in SDSS J141126.20+200911.1, together with time-resolved X-Shooter…”
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14 new eclipsing white dwarf plus main-sequence binaries from the SDSS and Catalina surveys by Parsons, S. G., Agurto-Gangas, C., Gänsicke, B. T., Rebassa-Mansergas, A., Schreiber, M. R., Marsh, T. R., Dhillon, V. S., Littlefair, S. P., Drake, A. J., Bours, M. C. P., Breedt, E., Copperwheat, C. M., Hardy, L. K., Buisset, C., Prasit, P., Ren, J. J.

“…We report on the search for new eclipsing white dwarf plus main-sequence (WDMS) binaries in the light curves of the Catalina surveys. We use a colour-selected…”
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