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Просмотр по автору "Ignace R."

Просмотр по автору "Ignace R."

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  • A scaling relationship for non-thermal radio emission from ordered magnetospheres: From the top of the main sequence to planets 
    Leto P.; Trigilio C.; Krtička J.; Fossati L.; Ignace R.; Shultz M.E.; Buemi C.S.; Cerrigone L.; Umana G.; Ingallinera A.; Bordiu C.; Pillitteri I.; Bufano F.; Oskinova L.M.; Agliozzo C.; Cavallaro F.; Riggi S.; Loru S.; Todt H.; Giarrusso M.; Phillips N.M.; Robrade J.; Leone F. (2021)
    In this paper, we present the analysis of incoherent non-thermal radio emission from a sample of hot magnetic stars, ranging from early-B to early-A spectral type. Spanning a wide range of stellar parameters and wind ...
  • An X-Ray Study of Two B+B Binaries: AH Cep and CW Cep 
    Ignace R.; Hole K.; Oskinova L.; Rotter J. (2017)
    © 2017. The American Astronomical Society. All rights reserved. AH Cep and CW Cep are both early B-type binaries with short orbital periods of 1.8 days and 2.7 days, respectively. All four components are B0.5V types. The ...
  • Chandra X-ray study confirms that the magnetic standard Ap star KQ Vel hosts a neutron star companion 
    Oskinova L.M.; Ignace R.; Leto P.; Postnov K.A. (2020)
    © ESO 2020. Context. KQ Vel is a peculiar A0p star with a strong surface magnetic field of about 7.5 kG. It has a slow rotational period of nearly 8 years. Bailey et al. (A&A, 575, A115) detected a binary companion of ...
  • Coordinated UV and X-Ray Spectroscopic Observations of the O-type Giant ξ Per: The Connection between X-Rays and Large-scale Wind Structure 
    Massa D.; Oskinova L.; Prinja R.; Ignace R. (2019)
    © 2019. The American Astronomical Society. All rights reserved. We present new, contemporaneous Hubble Space Telescope STIS and XMM-Newton observations of the O7 III(n)((f)) star ξ Per. We supplement the new data with ...
  • Evidence for radio and x-ray auroral emissions from the magnetic b-type star ρ oph a 
    Leto P.; Trigilio C.; Leone F.; Pillitteri I.; Buemi C.S.; Fossati L.; Cavallaro F.; Oskinova L.M.; Ignace R.; Krtička J.; Umana G.; Catanzaro G.; Ingallinera A.; Bufano F.; Agliozzo C.; Phillips N.M.; Cerrigone L.; Riggi S.; Loru S.; Munari M.; Gangi M.; Giarrusso M.; Robrade J. (2020)
    © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society We present new ATCA multiwavelength radio measurements (range 2.1–21.2 GHz) of the early-type magnetic star ρ Oph A, ...
  • On the Apparent Absence of Wolf-Rayet+Neutron Star Systems: The Curious Case of WR124 
    Toalá J.; Oskinova L.; Hamann W.; Ignace R.; Sander A.; Shenar T.; Todt H.; Chu Y.; Guerrero M.; Hainich R.; Torrejón J. (2018)
    © 2018. The American Astronomical Society. All rights reserved.. Among the different types of massive stars in advanced evolutionary stages is the enigmatic WN8h type. There are only a few Wolf-Rayet (WR) stars with this ...
  • The auroral radio emission of the magnetic B-type star ρ OphC 
    Leto P.; Trigilio C.; Buemi C.S.; Leone F.; Pillitteri I.; Fossati L.; Cavallaro F.; Oskinova L.M.; Ignace R.; Krtička J.; Umana G.; Catanzaro G.; Ingallinera A.; Bufano F.; Riggi S.; Cerrigone L.; Loru S.; Schilliró F.; Agliozzo C.; Phillips N.M.; Giarrusso M.; Robrade J. (2020)
    © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. The non-thermal radio emission of main-sequence early-type stars is a signature of stellar magnetism. We present ...
  • The polarization mode of the auroral radio emission from the early-type star HD 142301 
    Leto P.; Trigilio C.; M. Oskinova L.; Ignace R.; Buemi C.; Umana G.; Cavallaro F.; Ingallinera A.; Bufano F.; Phillips N.; Agliozzo C.; Cerrigone L.; Todt H.; Riggi S.; Leone F. (2019)
    © 2018 The Author(s). We report the detection of the auroral radio emission from the early-type magnetic star HD142301. New VLA observations of HD142301 detected highly polarized amplified emission occurring at fixed stellar ...

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