93 datasets found

Keywords: accretion

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  • Mapping accretion variability in NGC 2264

    Our study aims at characterizing the accretion properties of several hundred members of the star-forming region NGC 2264 (3Myr). We performed a deep u,g,r,i mapping of the...
  • 3mm maps of 4 transition disks

    Transition disks are protoplanetary disks with inner depleted dust cavities and excellent candidates to investigate the dust evolution under the existence of a pressure bump. A...
  • UV FeII template from LBQS 2113-4538

    MgII line is of extreme importance for intermediate quasars since it allows to measure the black hole mass in these sources and to use them as probes of the distribution of dark...
  • GRS 1915+105 timing analysis

    GRS 1915+105 was observed by BeppoSAX for about 10 days in October 2000. For about 80% of the time, the source was in the variability class rho, characterised by a series of...
  • V1118 Ori UBVRIJHK outburst light curves

    The accretion history of low-mass young stars is not smooth but shows spikes of accretion that can last from months and years to decades and centuries. Observations of young...
  • Temporal variability of Cygnus X-1

    We present results of fitting power density spectra from archived Rossi X-ray Timing Explorer (RXTE) data of the source Cygnus X-1. The data cover the observations of the source...
  • Near-IR photometry of PMS stars in rho Oph

    The aim of this paper is to provide a measurement of the mass accretion rate in a large, complete sample of objects in the core of the star forming region rho Oph. The sample...
  • Pre-eclipse dip of Her X-1

    We report on a pre-eclipse dip of the X-ray binary pulsar Her X-1 observed by the Rossi X-ray Timing Explorer (RXTE) in 1996 July. The energy spectra in the 3-18keV range can be...
  • XXL Survey. DR2

    We present the second data release (DR2) of the XXL Survey, contextually with the appearance of a second A&A special issue dedicated to XXL. This intermediate release...
  • WISE Green Objects massive YSOs in the Gal. plane

    Massive young stellar objects (MYSOs) play a crucial role in star formation. Given that MYSOs were previously identified based on the extended structure and the observational...
  • YSOs in LDN 1641 with Hectochelle spectra

    We investigate the young stellar objects (YSOs) in the Lynds 1641 (L1641) cloud using multi-wavelength data including Spitzer, WISE, the Two Micron All Sky Survey, and XMM...
  • PMS stars in the Cepheus flare region

    We present results of optical spectroscopic and BVR_C_I_C_ photometric observations of 77 pre-main-sequence (PMS) stars in the Cepheus flare region. A total of 64 of these are...
  • Importance of coarse sedimentation events for maintaining back-barrier salt-m...

    An improved understanding of the resilience capacity of salt-marsh environments, which are recognized as one of the most vulnerable yet valuable coastal morpho-sedimentary...
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