Publication type: Refereed

  • Publication
    X-ray bubbles in the circumgalactic medium of TNG50 Milky Way- and M31-like galaxies: signposts of supermassive black hole activity
    The TNG50 cosmological simulation produces X-ray emitting bubbles, shells, and cavities in the circumgalactic gas above and below the stellar discs of Milky Way...
  • Publication
    X-ray confirmation of the intermediate polar HT Cam
    We report on the first pointed X-ray observations with XMM-Newton and RXTE satellites of the X-ray source RX J0757.0+6306 = HT Cam. We detect a strong 515 s X...
  • Publication
    X-Ray Emission from Massive Stars in Cyg OB2
    We report on the analysis of the Chandra-ACIS data of O, B, and WR stars in the young association Cyg OB2. X-ray spectra of 49 O-stars, 54 B-stars, and 3 WR...
  • Publication
    X-ray emission from RX J1720.1+2638 and Abell 267: A comparison between a fossil and a non-fossil system
    We present the XMM-Newton X-ray analysis of RX J1720.1+2638 and Abell 267, a non-fossil and a fossil system, respectively. The whole spectrum of both objects...
  • Publication
    X-Ray Evidence for a Pole-dominated Corona on AB Dor
    A fine analysis of spectral line widths and Doppler shifts employing Fourier transform and cross-correlation techniques has been applied to Chandra HETG spectra...
  • Publication
    X-Ray Flaring on the dMe Star, Ross 154
    We present results from two Chandra imaging observations of Ross 154, a nearby flaring M dwarf star. During a 61 ks ACIS-S exposure, a very large flare occurred...
  • Publication
    X-ray flashes or soft gamma-ray bursts?. The case of the likely distant XRF 040912
    Context: The origin of X-ray Flashes (XRFs) is still a mystery and several models have been proposed. To disentangle among these models, an important...
  • Publication
    X-ray long-term variations in the low-luminosity AGN NGC 835 and its circumnuclear emission
    Context. Obscured active galactic nuclei (AGNs) are thought to be very common in the Universe. Observations and surveys have shown that the number of sources...
  • Publication
    X-ray luminosity functions of different morphological and X-ray type AGN populations
    Luminosity functions are one of the most important observational clues when studying galaxy evolution over cosmic time. In this paper we present the X-ray...